Gates Unitta Asia U-550 User manual

SonicBeltTensionMeter
U-550OperationManual
Contents
１.Precautions P１
P３
P４
P５
P７
P9
２.Briefsummary,caution&check
pointsforthefailure
３.MeasurementprincipleofU-550
４.ExplanationofthepartsofU-550
mainbody
５.OperationprocedureofU-550
６.Howtoinputthedata
６-１Howtoinputtheunitmass
７.Unitmasstableofthe
preinstalledbelt
６-２Howtoinputthebeltwidthorthenumberofbelts(ribs)
６-３Howtoinputthevalueofspanlength
８.UnitmasstableofGateUnitta
Asiatoothshapetimingbelt
９.TheunitmasstableofVbelt
madebyGates
１０.Thestandardinstallationtension
 tableoftheGUAtimingbelt
P10
P１1
P10
１１.SpecificationofU-550
１２.Guarantee&RepairGuidelines
P１3
P12
P１4
ThismanualdescribesoperationprocedureofU-550.
Pleasereadthismanualthoroughlybeforeforfulluseoffunctions.
U-550MANUALV01
HEADOFFICE4-26SAKURAGAWA4-CHOME,NANIWA-KUOSAKA556-0022.JAPAN
TEL:[phone] FAX:[phone]
u550_e_manual.indd 2 2020/12/08 16:18

1 2
Danger
■Pleasereadthisprecautionscarefully.AndKeepthismanual
safeforfuturereference.
■Theseprecautionsarewrittentodefendtheusertokeep
otherpeoplefromharm,andtopreventotherdamages.
Pleasepayattentiontotheseprecautions.
■Thesesignsindicatethelevelofdangerwhichcanbe
expectedbyimproperuse.   
１.  Precautions
Imminentlydangerous
situation,suchasdeath
orsevereinjury
Warning
Cancausebreakdown,
injury,andelectric
shock
Caution Caution
Injuryorphysical
damages
ThingstheusermustNOTdo.
Thingstheusermustdo.
Avoidkeepingattheplace
wheremuchhumidity,dustand
hightemperaturearepresent.
●Cancausethebreakdown 
Donotleaveorusethis
sensorinthedirectsunlight
orhightemperatureplace.
Donotputonanunstable
placelikeaslopingtable.
●Cancauseinjuryorbreakdown
Pleasemeasurethetensile
forceafterconfirmingthe
machinehasbeenturnedoff.
Donotmakestrongimpactor
throw.
●Cancausebreakdownandfire
Donotusethisina
flammableenvironment. 

●Cancauseanexplosionorthefire
whenusingthisnearpropanegas
orgasoline
Donotbreakdownor
change.
●Cancauseinjury
Eventhoughthearmpartsof
thesensorareflexible,donot
bendatanacuteangle.Please
donotbenditclosetothe
headofthesensor(within
20mmfromthesensor),and
alsodonotbenditatthe
bottomofthesensor.Donot
grabortwirlthecordstrongly.
Pleaseturnoffthepower,
immediatelyrightafteryou
hearathundernoiseand
movetoasafetyplace. 

●Cancauseanelectricshock
Donotputliquidssuchas
waterorsolventsonthe
meter.Donotusethesensor
inawetoroilyenvironment.
Donotusesolvents(thinner
andbenzene,etc.)for
maintenance.
Warning
u550_e_manual.indd 3 2020/12/08 16:18

1 2
Danger
■Pleasereadthisprecautionscarefully.AndKeepthismanual
safeforfuturereference.
■Theseprecautionsarewrittentodefendtheusertokeep
otherpeoplefromharm,andtopreventotherdamages.
Pleasepayattentiontotheseprecautions.
■Thesesignsindicatethelevelofdangerwhichcanbe
expectedbyimproperuse.   
１.  Precautions
Imminentlydangerous
situation,suchasdeath
orsevereinjury
Warning
Cancausebreakdown,
injury,andelectric
shock
Caution Caution
Injuryorphysical
damages
ThingstheusermustNOTdo.
Thingstheusermustdo.
Avoidkeepingattheplace
wheremuchhumidity,dustand
hightemperaturearepresent.
●Cancausethebreakdown 
Donotleaveorusethis
sensorinthedirectsunlight
orhightemperatureplace.
Donotputonanunstable
placelikeaslopingtable.
●Cancauseinjuryorbreakdown
Pleasemeasurethetensile
forceafterconfirmingthe
machinehasbeenturnedoff.
Donotmakestrongimpactor
throw.
●Cancausebreakdownandfire
Donotusethisina
flammableenvironment. 

●Cancauseanexplosionorthefire
whenusingthisnearpropanegas
orgasoline
Donotbreakdownor
change.
●Cancauseinjury
Eventhoughthearmpartsof
thesensorareflexible,donot
bendatanacuteangle.Please
donotbenditclosetothe
headofthesensor(within
20mmfromthesensor),and
alsodonotbenditatthe
bottomofthesensor.Donot
grabortwirlthecordstrongly.
Pleaseturnoffthepower,
immediatelyrightafteryou
hearathundernoiseand
movetoasafetyplace. 

●Cancauseanelectricshock
Donotputliquidssuchas
waterorsolventsonthe
meter.Donotusethesensor
inawetoroilyenvironment.
Donotusesolvents(thinner
andbenzene,etc.)for
maintenance.
Warning
u550_e_manual.indd 4 2020/12/08 16:18

3 4
Fig.1OsciIlationattenuationoftimingbelt
150
100
50
0 50 100 150
２
Timingbeit：
３GTtoothshape×3
mm wide
（V）
０
-２ TIME A LIN
８０ m S
２.  Briefsummary,caution&checkpointsforfailure ３.MeasurementprincipleofU-550
Thesonicbelttensionmeter(U-550)is
thehandyequipmentwhichenablesto
measurethetensionaccuratelyby
analyzingsonicwavewithouttouching.
Asensorcatchestheproduced
eruptionofsoundwavebypickthebelt
span.Afterthat,thehighprocessing
computeranalyzesitandshowstheresult
onthescreendigitally.
Whenwemakeabeltbetweenpulleys
vibratebygivingimpact,itstartsto
oscillateirregularlyasseeninFig.1,but
graduallyitoscillatesaninherentregular
moves.
TheU-550tensionmeterwascreatedto
addressthisphenomenon.Inthepast,
therewasnoeasilyimplementeddevice
whichcouldcatchthesesmallwaves.
Wesucceededincatchingtheperiodof
wavepatternrelativelyeasilyby
developingadatahandlingmethodto
capturethevibrationfrequencythatmade
fulluseofmicrocomputer.
Asforthesystem,sensordetectsthe
vibrationwaveform,microcomputer
calculatesthecharactervibrationnumber
byprocessingthedata.
Tocalculatethebelttension,weusethe
transversevibrationofthethreadfor
settingatatensionasrightside.
Here,thebeltandthewirehavearigidity,
whichisdifferentfromthestring,therefore
U-550measurementdisplayedis
somewhathigherthantheactualtension
undertheaffectedcondition.
Therefore,itispossibletoobtain
correctionfactorbystrictcalibrationtest
andincorporateittothedatainput,
therebyitcandisplaymoreaccurate
tension.
AnexampleofcalibrationresultofU-550
measurementandactualtensionisshown
below:
CalculationTo＝４×M×W×S２ ×f２ ×１０ -９
 To ：Tension
M：Unitmass
W：Beltwidthornumberofribs（wires）
S ：Measuredspanlength
f ：Horizontalcharacteristicfrequency
（N）
（g/
mm width×mlength）
（
mm /R）
（
mm ）
（Hz）
■Briefsummary
■Checkpointsfortheimmeasurablestate
［Failedtomeasureortheresultswerefluctuatedsignificantly.］
ITEM
＊PleaseinquiretousorthedealerwhereyoupurchasediftheU-550doesnotworkafterchecking
thepointsabove.
PRESUMED PRESUMEDCAUSE CONFIRMATIONPONT
"Error"showsupor
themeasuremode
cannotbeengaged
ortheredlighton.
Theunevennessof
theoutputlevelis
large.
●Nothingshows
uporonly
measuring
processingsign
showsupfrom
thethirdtimeof
measurin
（Frequency
mode）
●Themeasured
valuechanges
everytimegreatly
●Thesensor
respondstothe
backgroundnoise
keenly
●"0"isenteredtotheunitmass,
width&span
●Inputthewrongfrequencyrange
●Measuredfrequencyexceeds
5000Hzorbelow10Hz
●Batterydrain
●Thesensorattachestoabeltfor
amoment
●Automaticgainadjustmentisnot
enough
●Checktheentereddata（Input
thecorrectnumber）
●Thefrequencydisplays,butthe
tensiondoesnotmeasure
●Changethemeasurement
frequencyrange
（LOW（V）⇔STANDARD⇔HIGH）
●Checkwhetherthemeasurement
frequencyexceeds5000Hzor
 not
●Batterydrain
●Measureagainkeepingenough
distancesothatthesensordoes
notattachtoabelt
●Turnoffapoweronceatthe
measurementplace,thenturnit
on
（Turnonapowerwith
connectedthesensor,thenpush
"MEASURE"buttonafterone
second
Therefore,itisrequiredtoinputthelengthof
span to be measured and the mass of beIt
（unitmassxwidth）byuseofnumerickey.
3GTbalt
Actualtension（N）
U-550measuredvalue（N）
：Spanlength86 mm
：Spanlength 154 mm
：Spanlength365 mm
：Spanlength365 mm
［9 mm wide］
Standardinstalation
tensionofbelt
9mmwide
Standardinstalation
tensionofbelt
6mmwide
［6
mm wide］
Fig.2U-550relationbetweenmeasured
valueandactualtension
0
100
200
300
400
500
600
100 200 300 400 500 600
Actualtension（N）
U-550measuredvalue（N）
Typicalterisionwhen
sfrbtchingagain
Typical
lnstallation
tension
V-ribbedbelt
：Spanlength102
mm
：Spanlength201 mm
：Spanlength400 mm
u550_e_manual.indd 5 2020/12/08 16:18

3 4
Fig.1OsciIlationattenuationoftimingbelt
150
100
50
0 50 100 150
２
Timingbeit：
３GTtoothshape×3
mm wide
（V）
０
-２ TIME A LIN
８０ m S
２.  Briefsummary,caution&checkpointsforfailure ３.MeasurementprincipleofU-550
Thesonicbelttensionmeter(U-550)is
thehandyequipmentwhichenablesto
measurethetensionaccuratelyby
analyzingsonicwavewithouttouching.
Asensorcatchestheproduced
eruptionofsoundwavebypickthebelt
span.Afterthat,thehighprocessing
computeranalyzesitandshowstheresult
onthescreendigitally.
Whenwemakeabeltbetweenpulleys
vibratebygivingimpact,itstartsto
oscillateirregularlyasseeninFig.1,but
graduallyitoscillatesaninherentregular
moves.
TheU-550tensionmeterwascreatedto
addressthisphenomenon.Inthepast,
therewasnoeasilyimplementeddevice
whichcouldcatchthesesmallwaves.
Wesucceededincatchingtheperiodof
wavepatternrelativelyeasilyby
developingadatahandlingmethodto
capturethevibrationfrequencythatmade
fulluseofmicrocomputer.
Asforthesystem,sensordetectsthe
vibrationwaveform,microcomputer
calculatesthecharactervibrationnumber
byprocessingthedata.
Tocalculatethebelttension,weusethe
transversevibrationofthethreadfor
settingatatensionasrightside.
Here,thebeltandthewirehavearigidity,
whichisdifferentfromthestring,therefore
U-550measurementdisplayedis
somewhathigherthantheactualtension
undertheaffectedcondition.
Therefore,itispossibletoobtain
correctionfactorbystrictcalibrationtest
andincorporateittothedatainput,
therebyitcandisplaymoreaccurate
tension.
AnexampleofcalibrationresultofU-550
measurementandactualtensionisshown
below:
CalculationTo＝４×M×W×S２ ×f２ ×１０ -９
 To ：Tension
M：Unitmass
W：Beltwidthornumberofribs（wires）
S ：Measuredspanlength
f ：Horizontalcharacteristicfrequency
（N）
（g/
mm width×mlength）
（
mm /R）
（
mm ）
（Hz）
■Briefsummary
■Checkpointsfortheimmeasurablestate
［Failedtomeasureortheresultswerefluctuatedsignificantly.］
ITEM
＊PleaseinquiretousorthedealerwhereyoupurchasediftheU-550doesnotworkafterchecking
thepointsabove.
PRESUMED PRESUMEDCAUSE CONFIRMATIONPONT
"Error"showsupor
themeasuremode
cannotbeengaged
ortheredlighton.
Theunevennessof
theoutputlevelis
large.
●Nothingshows
uporonly
measuring
processingsign
showsupfrom
thethirdtimeof
measurin
（Frequency
mode）
●Themeasured
valuechanges
everytimegreatly
●Thesensor
respondstothe
backgroundnoise
keenly
●"0"isenteredtotheunitmass,
width&span
●Inputthewrongfrequencyrange
●Measuredfrequencyexceeds
5000Hzorbelow10Hz
●Batterydrain
●Thesensorattachestoabeltfor
amoment
●Automaticgainadjustmentisnot
enough
●Checktheentereddata（Input
thecorrectnumber）
●Thefrequencydisplays,butthe
tensiondoesnotmeasure
●Changethemeasurement
frequencyrange
（LOW（V）⇔STANDARD⇔HIGH）
●Checkwhetherthemeasurement
frequencyexceeds5000Hzor
 not
●Batterydrain
●Measureagainkeepingenough
distancesothatthesensordoes
notattachtoabelt
●Turnoffapoweronceatthe
measurementplace,thenturnit
on
（Turnonapowerwith
connectedthesensor,thenpush
"MEASURE"buttonafterone
second
Therefore,itisrequiredtoinputthelengthof
span to be measured and the mass of beIt
（unitmassxwidth）byuseofnumerickey.
3GTbalt
Actualtension（N）
U-550measuredvalue（N）
：Spanlength86 mm
：Spanlength 154 mm
：Spanlength365 mm
：Spanlength365 mm
［9 mm wide］
Standardinstalation
tensionofbelt
9mmwide
Standardinstalation
tensionofbelt
6mmwide
［6
mm wide］
Fig.2U-550relationbetweenmeasured
valueandactualtension
0
100
200
300
400
500
600
100 200 300 400 500 600
Actualtension（N）
U-550measuredvalue（N）
Typicalterisionwhen
sfrbtchingagain
Typical
lnstallation
tension
V-ribbedbelt
：Spanlength102
mm
：Spanlength201 mm
：Spanlength400 mm
u550_e_manual.indd 6 2020/12/08 16:18

5 6
1.PressMEASUREbuttontosetupautotriggermode.  
＊Initiallyisshown.
＊Duringmeasurementisshown. 
Themeasurementstartsafterreceivingasignalfromasensor
2.ItwillstartmeasuringafterselectingbelttypeandpressMEASUREbutton. 
3.Afterchangingmeasuringfrequencyrange,pressMEASUREbuttonformeasuringchanged
frequencyrange.    
MEASURE
10
Thissensorhasnarrowpathofφ12.5mmandaction-pipewhichcansetasensorpositionhandily.
Itisbestusedwhenonecannotputthemainbodyonthefloor.  
Flexiblesensor
（Standardmodel）
11
One-touch
connector
Thereisthehollowofadent,insertaconvexconnectoratthetop.
Toremoveaconnector,slidethejointpartandpullout.
1
Powerbutton PressthepowerbuttontoturnU-550on.
Itwillautomaticallyturnofffiveminutesafterthelastmeasure.
2
●【Toshowthepreinstalledmass】
BelttypecategoryisshownupbypressingMASSbuttonmorethanonesecond. 
AndchoosebyUPorDOWNbuttonandpushMEASUREbuttonforconfirmation. 
＊Showingunit:g/m.      
＊CAT(roughstandard),tensionandfrequencywon'tbeshownwithoutselectingbelttype.
5
Selectbutton ●【Memoryofmeasuringcondition】
PressSELECTbuttontochooseanydesiredinputnumberdisplayedinpower-on. 
40memoryfunctionsselectablefromNo.0to39     
＊Topasson,pressSELECTbuttonbacktoback,tojumpinthenumber,pressthewished
numberdirectlyonit.
Pleasepressthenumbercontinuouslytocalloutlargerthanthenumberten. 
●【Calloutthemeasuredresult】
Itisabletoconfirmthelatest500databypressingmorethanonesecond. 
Toselecttheresult,pressUPorDOWMbutton.Tojumpthedata,Pressthosebuttonmorethan
onesecond.     
＊TheresultisrecordedinorderfromRec.001,itwillbeoverwrittenwhentherecordsstraythe
latest500results.
＊Theresultwillbelostifthebatteryisremovedforalongtime.
4
WIDTHbutton ●PressWIDTHbuttonforputtingthewidthofthebeltwithnumerickey. 
＊Entercapacity:000.1-999.9mm/R     
＊EnterthenumberofribsforVbelt.    
6
SPANbutton ●PressSPANbuttonforputtingthewidthofthebeltspannumerickey.
7
Hzbutton
（switching
frequencyand
tension)）
●PressHzbuttonforselectingfrequencyor
tension.    
＊Themodechangeseverytimethisbuttonis
pressed.
●PressHzbuttonmorethanonesecondtoshow
bothrecordswithtensionandfrequency.
8
0/RANGE
button（switch
frequency
range）
Press0/RANGEbuttonmorethanonesecondtochangemeasurementfrequencyrange.
HIGH…………900〜5000Ｈｚ
STANDARD…10〜1000Ｈｚ
LOW（Ｖ）…………10〜50Ｈｚ
＊ChangetoHIGHformeasuringover1000Hz   
9
Therearefourkindsofsensors.
Cordtype Because the sizeofthissenorisanarrow path ofφ 12.5mm, it ismeasurableby
everyplaces.     
Flat type   This is the free pipe of the flat shape with thickness 10mm and 20mm in width.
Especiallyfortherightangledirectioninaparticularlysmallplace. 
Long arm type By using this sensor, it is possible to measure that the main body is hard to
reach.
Electromagnetictype Thisreacttotheelectromagneticvibration,unaffectedbytheneighboring
noise,themeasurementispossibleunderthevibrationdecrementearly. 
However, an application such as the pasting of a thin magnetic film or the magnetic paint is
necessaryforameasurementsideinthecaseofarubberbelt.
ThiscableconnectsU-550withPCs,andtransferthemeasureddata.
Sensor
（Option）
USBcablefortransfer
12
13
４. ExplanationofthepartsofU-550mainbody
Flexiblearmsensor 
（Standard）
11
One-touchconnector
1
Measurebutton 
（Decisionbutton）
10
Powerbutton
2
●Cordtypesensor
Sensor（Option）
12
●Flatflexiblesensor
Sensor
●Longarmsensor
●Electromagneticsensor
USBcableisnotattached. 
Pleaseuseacommercialone.（Mini-B5type）
13
OLED
3
Spanbutton
7
Selectbutton
（Callbuttonof
measuredresults） 
Powersupply:TripleAtypex2pieces
4
Hzbutton
（changeafrequency⇔tension）
8
LED
（Left:Red,Right:Green）
Widthbutton
6
Massbutton
5
O/Rangebutton
Changeafrequencyrange
9
UP/DOWN
button
5S No 01 5GT
RESULT
TEN N
S No 01 5GT
RESULT
FREQ Hz
Measuredtension
S No 01 5GT
RESULT
FREQ Hz
TEN N
Measuredtension&frequency
S No 01 5GT
FREQUENCY
CAT Hz
RES Hz
Frequency&Catalogfrequency
S No 01 5GT
Tension&Catalogtension
Measuredtension&Frequency
TENSION
CAT N
RES N
OLED
Thisdisplays
tensionvalue


3
S No 00
M 9 9 9. 9 g/m
W 9 9 9 .9 mm/R
S 9 9 9 9 mm
S No 00 2GT
TENSION
99900 N
Measurement
frequencylevel
H:HIGH
S:STANDARD
L :LOW（V）
MemoryNo.
Themeasuredresult
Inmeasurementofbelttype
Batteryresidualquantity
【OverviewofOLEDshowingpattern】
Note:Thiswillbeshown
2patterns.
1：pre-installation.
2：sendfromPCapp.
Unitmassbeltwidthspanindicationexample
●Tensionnumericalnumberisshownbythreedigitsfrom
0.01〜99,900.   
●Frequencynumericalnumberisshownbythreedigits
from10.0〜5,000Hz.   
●TheredlightandERRORwillbeshownonthescreen
whentheresultofthemeasureisoutofthestandard
range.
NOTE:Ifthestandardrangeoveroccursaftertheresultis
shown,itbeepstwiceuntilthesecondmeasure.
●Abatterytypesignatureatthetimeofthebattery
consumptionisshown.   
LOWBATTblinksonandoffwhenthebatteryislow.
●OLEDwillturnoffafternooperationfor1minute.
H No 00 EV8YU
T Belt
V Belt
U Belt
Belt
S No 02 2GT
3GT 2.5
2GT 1.3
01
03
02
1.5GT 0.9
MASSbutton
S No 01
STANDARD
LOW（V）
HIGH
ByUPorDOWNbuttontochoose
therange,andpress
MEASUREbuttonforconfirmation.
350mm
＊USBcableinNOTincludedinthepackage.
PleaseusetheMINI-B5pin.
u550_e_manual.indd 7 2020/12/08 16:18

5 6
1.PressMEASUREbuttontosetupautotriggermode.  
＊Initiallyisshown.
＊Duringmeasurementisshown. 
Themeasurementstartsafterreceivingasignalfromasensor
2.ItwillstartmeasuringafterselectingbelttypeandpressMEASUREbutton. 
3.Afterchangingmeasuringfrequencyrange,pressMEASUREbuttonformeasuringchanged
frequencyrange.    
MEASURE
10
Thissensorhasnarrowpathofφ12.5mmandaction-pipewhichcansetasensorpositionhandily.
Itisbestusedwhenonecannotputthemainbodyonthefloor.  
Flexiblesensor
（Standardmodel）
11
One-touch
connector
Thereisthehollowofadent,insertaconvexconnectoratthetop.
Toremoveaconnector,slidethejointpartandpullout.
1
Powerbutton PressthepowerbuttontoturnU-550on.
Itwillautomaticallyturnofffiveminutesafterthelastmeasure.
2
●【Toshowthepreinstalledmass】
BelttypecategoryisshownupbypressingMASSbuttonmorethanonesecond. 
AndchoosebyUPorDOWNbuttonandpushMEASUREbuttonforconfirmation. 
＊Showingunit:g/m.      
＊CAT(roughstandard),tensionandfrequencywon'tbeshownwithoutselectingbelttype.
5
Selectbutton ●【Memoryofmeasuringcondition】
PressSELECTbuttontochooseanydesiredinputnumberdisplayedinpower-on. 
40memoryfunctionsselectablefromNo.0to39     
＊Topasson,pressSELECTbuttonbacktoback,tojumpinthenumber,pressthewished
numberdirectlyonit.
Pleasepressthenumbercontinuouslytocalloutlargerthanthenumberten. 
●【Calloutthemeasuredresult】
Itisabletoconfirmthelatest500databypressingmorethanonesecond. 
Toselecttheresult,pressUPorDOWMbutton.Tojumpthedata,Pressthosebuttonmorethan
onesecond.     
＊TheresultisrecordedinorderfromRec.001,itwillbeoverwrittenwhentherecordsstraythe
latest500results.
＊Theresultwillbelostifthebatteryisremovedforalongtime.
4
WIDTHbutton ●PressWIDTHbuttonforputtingthewidthofthebeltwithnumerickey. 
＊Entercapacity:000.1-999.9mm/R     
＊EnterthenumberofribsforVbelt.    
6
SPANbutton ●PressSPANbuttonforputtingthewidthofthebeltspannumerickey.
7
Hzbutton
（switching
frequencyand
tension)）
●PressHzbuttonforselectingfrequencyor
tension.    
＊Themodechangeseverytimethisbuttonis
pressed.
●PressHzbuttonmorethanonesecondtoshow
bothrecordswithtensionandfrequency.
8
0/RANGE
button（switch
frequency
range）
Press0/RANGEbuttonmorethanonesecondtochangemeasurementfrequencyrange.
HIGH…………900〜5000Ｈｚ
STANDARD…10〜1000Ｈｚ
LOW（Ｖ）…………10〜50Ｈｚ
＊ChangetoHIGHformeasuringover1000Hz   
9
Therearefourkindsofsensors.
Cordtype Because the sizeofthissenorisanarrow path ofφ 12.5mm, it ismeasurableby
everyplaces.     
Flat type   This is the free pipe of the flat shape with thickness 10mm and 20mm in width.
Especiallyfortherightangledirectioninaparticularlysmallplace. 
Long arm type By using this sensor, it is possible to measure that the main body is hard to
reach.
Electromagnetictype Thisreacttotheelectromagneticvibration,unaffectedbytheneighboring
noise,themeasurementispossibleunderthevibrationdecrementearly. 
However, an application such as the pasting of a thin magnetic film or the magnetic paint is
necessaryforameasurementsideinthecaseofarubberbelt.
ThiscableconnectsU-550withPCs,andtransferthemeasureddata.
Sensor
（Option）
USBcablefortransfer
12
13
４. ExplanationofthepartsofU-550mainbody
Flexiblearmsensor 
（Standard）
11
One-touchconnector
1
Measurebutton 
（Decisionbutton）
10
Powerbutton
2
●Cordtypesensor
Sensor（Option）
12
●Flatflexiblesensor
Sensor
●Longarmsensor
●Electromagneticsensor
USBcableisnotattached. 
Pleaseuseacommercialone.（Mini-B5type）
13
OLED
3
Spanbutton
7
Selectbutton
（Callbuttonof
measuredresults） 
Powersupply:TripleAtypex2pieces
4
Hzbutton
（changeafrequency⇔tension）
8
LED
（Left:Red,Right:Green）
Widthbutton
6
Massbutton
5
O/Rangebutton
Changeafrequencyrange
9
UP/DOWN
button
5S No 01 5GT
RESULT
TEN N
S No 01 5GT
RESULT
FREQ Hz
Measuredtension
S No 01 5GT
RESULT
FREQ Hz
TEN N
Measuredtension&frequency
S No 01 5GT
FREQUENCY
CAT Hz
RES Hz
Frequency&Catalogfrequency
S No 01 5GT
Tension&Catalogtension
Measuredtension&Frequency
TENSION
CAT N
RES N
OLED
Thisdisplays
tensionvalue


3
S No 00
M 9 9 9. 9 g/m
W 9 9 9 .9 mm/R
S 9 9 9 9 mm
S No 00 2GT
TENSION
99900 N
Measurement
frequencylevel
H:HIGH
S:STANDARD
L :LOW（V）
MemoryNo.
Themeasuredresult
Inmeasurementofbelttype
Batteryresidualquantity
【OverviewofOLEDshowingpattern】
Note:Thiswillbeshown
2patterns.
1：pre-installation.
2：sendfromPCapp.
Unitmassbeltwidthspanindicationexample
●Tensionnumericalnumberisshownbythreedigitsfrom
0.01〜99,900.   
●Frequencynumericalnumberisshownbythreedigits
from10.0〜5,000Hz.   
●TheredlightandERRORwillbeshownonthescreen
whentheresultofthemeasureisoutofthestandard
range.
NOTE:Ifthestandardrangeoveroccursaftertheresultis
shown,itbeepstwiceuntilthesecondmeasure.
●Abatterytypesignatureatthetimeofthebattery
consumptionisshown.   
LOWBATTblinksonandoffwhenthebatteryislow.
●OLEDwillturnoffafternooperationfor1minute.
H No 00 EV8YU
T Belt
V Belt
U Belt
Belt
S No 02 2GT
3GT 2.5
2GT 1.3
01
03
02
1.5GT 0.9
MASSbutton
S No 01
STANDARD
LOW（V）
HIGH
ByUPorDOWNbuttontochoose
therange,andpress
MEASUREbuttonforconfirmation.
350mm
＊USBcableinNOTincludedinthepackage.
PleaseusetheMINI-B5pin.
u550_e_manual.indd 8 2020/12/08 16:18

7 8
Setupthesensor. Chooseanoptimumsensorandfixinthemainbody
withone-touchconnector.
１
Turnonpower. POWERbutton−PUSH No
No
No００→No０１
No０１→ No０２
No００→No０2
２
InputNo.bynumericalkeypador
selectbutton.
SELECTbutton−PUSH
【Numberisforwardedsequentaltyeverytime
SELECTbuttonispressed.00→0１→･･→38→39
→00→0１→0２→Inaddition,youcanjumptoany
designatednumberbypressinganumberwith
numerickey.】
Selectingprocedure
SELECTbutton−PUSH（1sttime）
SELECTbutton−PUSH（2ndtime）
Selectingprocedure
2button−PUSH
WhenSELECTbuttonispressedduringthe
followingprocedure（duringdisplayofunitmass,
beltwidth,spanlengthinput,andmeasuredvalue）,
thenumberbeingchosenisdisplayed.
３
EX:Selectfrom00toNo.02
Caseofinputtingaunitmass
manually.
Caseofinputtingtheunitmass
frombelttype.
EX:Select3GT.
［Seepage9forinputdata.］
［Seepage9forinputdata.］
［Seepage9forinputdate.］
EX:Put2.5g/mmwidexmeter
long
Ｉｎｐutthebeltwidth.
EX:Put25.4mm.
MASSbutton−PUSH
[Inputtheunitmass(g/mmWxmL)intheorderof
blinkingpositionondisplayscreenbyuseofnumeric
key.Ifyouinputwrongnumber,press"MASS"button
againtoreturnthecursortothefirst.]
０button−PUSH
０button−PUSH
２button−PUSH
５button−PUSH
●"MASS"button − PUSH（holdingdownmorethan
onesecond）Beltcategory（T,V,U）isshownonscreen
bypressingMASSbuttonnmorethanonesecond.
ByusingUPorDOWNbuttontoselectthebelt
category.
●"MEASURE"button − PUSH
Belttypeisshownonscreen,choosebelttypeby
UPorDOWNbutton
●"DOWN"button − PUSH
Placehighlightedportionon3GT.
●"MEASURE" − PUSH
3GTisdisplayedonscreen.
4-1
4-2
WIDTHbutton−PUSH
【Dothesameasdescribedabove.Whendata
abovealIowablecapacityisinput,thecursorreturns
tothefirst,andinputofdataisrequestedagain.】
０button−PUSH
２button−PUSH
５button−PUSH
４button−PUSH
５
Inputthespanlength. SPANbutton−PUSH
【Dothesameasdescribedabove.】
６
Procedure Description Operation Displayscreen
５.OperationprocedureofU-550
１
2
S＝ □□□ mm
『 Allowableinputcapacity:
０００１ 〜 ９９９９ m m 』
W＝ □□.□mm/R
『 Allowableinputcapacity:
０００.１〜９９９.９m m 』
W＝０ □.□mm/R
W＝０２ .□mm/R
W＝０２５. mm/R
W＝０２５.４m m / R
M＝ □□.□g/m
『 Allowableinputcapacity:
０.１〜９９９.９g / m m×m 』
M＝０ □.□g/m
M＝００ .□g/m
M＝００２. g/m
M＝００２.５g / m
Showsfrequencyafter
measurementoftension.
Showstheresultof
measurement.
"Hz"button−PUSH
［Showsfrequencycorrespondingtothemeasured
tension.
When"Hz"buttonispressedonceagain,thedisplay
returnstotensionmode.］
"Hz"button−PUSH
［Showsfrequencycorrespondingtothemeasured
tension.
＊When"Hz"buttonispressedonceagain,the
displayreturnstotensionmode.］
Tocallthelatest500records,pressSELECT
buttonmorethanasecondontheSELECTscreen.
SELECTbutton−PUSH
Showsmeasurementfrequency,tension,unitmassat
themeasurement.
Gobacktotheselectscreen.
＊Toerasethemeasureddatecanbecleared
collectivelywhenitconnectswithPC.
Individualdeletioncanbeperformedonthemainunit.
Method
Push「6」button:Selection.
Push「4」button:Deselection.
Press「0」buttonmorethanasecond:Delete.
８-２
9
＊PleasechecktheU-550applicationsoftwaremanualforhowtoexportthedatatoPC.      
T Belt
V Belt
U Belt
Belt
S No 02 2GT
S No 02 2GT
3GT 2.5
2GT 1.3
01
03
02
1.5GT 0.9
Showstension. ＊Indicationexamplefor
upperlowerlimitareset
Howeverpleasematch
indicationwithtension
indication（frequency
indication）whenyouset
thetensionlevel
（frequency）.Theupper
lowerlimitsettingwitha
PC.
８-１
Startmeasurement. Getsensorincentralspanofthemeasureobject
withouttouchingit.
"MEASURE"button−PUSH:LED(green)blinks,
shows.   
Tovibratethewire,flipthebeltspanwitha
fingeretc.:shows.  
Thefollowingmeasurementisperformedbythe
sensorreceivingsoundwithoutuseofmeasure
buttonfromthesecondtime.
Sincemeasurementisstartedbythesenor
receivingsound,itisstartedaswellevenbya
noiseifithasarelativelystablesoundpressure.
Resultisshownaswellasbeepsoundemitted
andLED（green）turnsonin0.2secondafter
receptionofbeltvibrationsound.
［Afterthesecond
measurement,please
noticethatthescreen
showsthedatapreviously
measured.
Andyouhearthebeep,
thenewdatawillbe
displayedonthescreen.］
７１
２
３
72.4 HIGH
N
TENSION
HIGH：Abovethesetting
GOOD：Withinsettingrange
LOW：Belowthesetting
S No 02 2GT
u550_e_manual.indd 9 2020/12/08 16:18

7 8
Setupthesensor. Chooseanoptimumsensorandfixinthemainbody
withone-touchconnector.
１
Turnonpower. POWERbutton−PUSH No
No
No００→No０１
No０１→ No０２
No００→No０2
２
InputNo.bynumericalkeypador
selectbutton.
SELECTbutton−PUSH
【Numberisforwardedsequentaltyeverytime
SELECTbuttonispressed.00→0１→･･→38→39
→00→0１→0２→Inaddition,youcanjumptoany
designatednumberbypressinganumberwith
numerickey.】
Selectingprocedure
SELECTbutton−PUSH（1sttime）
SELECTbutton−PUSH（2ndtime）
Selectingprocedure
2button−PUSH
WhenSELECTbuttonispressedduringthe
followingprocedure（duringdisplayofunitmass,
beltwidth,spanlengthinput,andmeasuredvalue）,
thenumberbeingchosenisdisplayed.
３
EX:Selectfrom00toNo.02
Caseofinputtingaunitmass
manually.
Caseofinputtingtheunitmass
frombelttype.
EX:Select3GT.
［Seepage9forinputdata.］
［Seepage9forinputdata.］
［Seepage9forinputdate.］
EX:Put2.5g/mmwidexmeter
long
Ｉｎｐutthebeltwidth.
EX:Put25.4mm.
MASSbutton−PUSH
[Inputtheunitmass(g/mmWxmL)intheorderof
blinkingpositionondisplayscreenbyuseofnumeric
key.Ifyouinputwrongnumber,press"MASS"button
againtoreturnthecursortothefirst.]
０button−PUSH
０button−PUSH
２button−PUSH
５button−PUSH
●"MASS"button − PUSH（holdingdownmorethan
onesecond）Beltcategory（T,V,U）isshownonscreen
bypressingMASSbuttonnmorethanonesecond.
ByusingUPorDOWNbuttontoselectthebelt
category.
●"MEASURE"button − PUSH
Belttypeisshownonscreen,choosebelttypeby
UPorDOWNbutton
●"DOWN"button − PUSH
Placehighlightedportionon3GT.
●"MEASURE" − PUSH
3GTisdisplayedonscreen.
4-1
4-2
WIDTHbutton−PUSH
【Dothesameasdescribedabove.Whendata
abovealIowablecapacityisinput,thecursorreturns
tothefirst,andinputofdataisrequestedagain.】
０button−PUSH
２button−PUSH
５button−PUSH
４button−PUSH
５
Inputthespanlength. SPANbutton−PUSH
【Dothesameasdescribedabove.】
６
Procedure Description Operation Displayscreen
５.OperationprocedureofU-550
１
2
S＝ □□□ mm
『 Allowableinputcapacity:
０００１ 〜 ９９９９ m m 』
W＝ □□.□mm/R
『
Allowableinputcapacity:
０００.１〜９９９.９m m 』
W＝０ □.□mm/R
W＝０２ .□mm/R
W＝０２５. mm/R
W＝０２５.４m m / R
M＝ □□.□g/m
『
Allowableinputcapacity:
０.１〜９９９.９g / m m×m 』
M＝０ □.□g/m
M＝００ .□g/m
M＝００２. g/m
M＝００２.５g / m
Showsfrequencyafter
measurementoftension.
Showstheresultof
measurement.
"Hz"button−PUSH
［Showsfrequencycorrespondingtothemeasured
tension.
When"Hz"buttonispressedonceagain,thedisplay
returnstotensionmode.］
"Hz"button−PUSH
［Showsfrequencycorrespondingtothemeasured
tension.
＊When"Hz"buttonispressedonceagain,the
displayreturnstotensionmode.］
Tocallthelatest500records,pressSELECT
buttonmorethanasecondontheSELECTscreen.
SELECTbutton−PUSH
Showsmeasurementfrequency,tension,unitmassat
themeasurement.
Gobacktotheselectscreen.
＊Toerasethemeasureddatecanbecleared
collectivelywhenitconnectswithPC.
Individualdeletioncanbeperformedonthemainunit.
Method
Push「6」button:Selection.
Push「4」button:Deselection.
Press「0」buttonmorethanasecond:Delete.
８-２
9
＊PleasechecktheU-550applicationsoftwaremanualforhowtoexportthedatatoPC.      
T Belt
V Belt
U Belt
Belt
S No 02 2GT
S No 02 2GT
3GT 2.5
2GT 1.3
01
03
02
1.5GT 0.9
Showstension. ＊Indicationexamplefor
upperlowerlimitareset
Howeverpleasematch
indicationwithtension
indication（frequency
indication）whenyouset
thetensionlevel
（frequency）.Theupper
lowerlimitsettingwitha
PC.
８-１
Startmeasurement. Getsensorincentralspanofthemeasureobject
withouttouchingit.
"MEASURE"button−PUSH:LED(green)blinks,
shows.   
Tovibratethewire,flipthebeltspanwitha
fingeretc.:shows.  
Thefollowingmeasurementisperformedbythe
sensorreceivingsoundwithoutuseofmeasure
buttonfromthesecondtime.
Sincemeasurementisstartedbythesenor
receivingsound,itisstartedaswellevenbya
noiseifithasarelativelystablesoundpressure.
Resultisshownaswellasbeepsoundemitted
andLED（green）turnsonin0.2secondafter
receptionofbeltvibrationsound.
［Afterthesecond
measurement,please
noticethatthescreen
showsthedatapreviously
measured.
Andyouhearthebeep,
thenewdatawillbe
displayedonthescreen.］
７１
２
３
72.4 HIGH
N
TENSION
HIGH：Abovethesetting
GOOD：Withinsettingrange
LOW：Belowthesetting
S No 02 2GT
u550_e_manual.indd 10 2020/12/08 16:18

9 10
1
2
3
●Listoftimingbeltunitmass
Timingbelt
HTDbelt
GTbelt
4PolychainGTcarbonbelt
5GatesTPUbelt
6Specialpitchbelt
Toothshape
Pitch（mm）
MXL
2.032
1.2
XXL（50）
3.175
1.4
XL
5.080
2.1
DXL
5.080
1.9
L
9.525
3.1
DL
9.525
3.3
H
12.700
3.8
DH
12.700
4.4
XH
22.225
11.1
XXH
31.750
14.8
Unitmass
（g/mmwidth×mlength）
Toothshape
Pitch（mm）
Unitmass
（g/mmwidth×mlength）
Toothshape
Pitch（mm）
Unitmass
（g/mmwidth×mlength）
Toothshape
Pitch（mm）
Unitmass
（g/mmwidth×mlength）
Toothshape
Pitch（mm）
Unitmass
（g/mmwidth×mlength）
3M-HTD
3.000
2.4
D3M-HTD
3.000
2.3
5M-HTD
5.000
3.8
D5M-HTD
5.000
4.2
8M-HTD
8.000
6.1
D8M-HTD
8.000
6.3
EV14M
14.000
8.7
EV14M2
14.000
8.3
14M-HTD
14.000
10.0
D14M-HTD
14.000
11.9
20M-HTD
20.000
12.8
8M-GT
8.000
4.7
14M-GT
14.000
8.0
101
1.5875
1.0
102
2.0320
1.3
103
2.1167
1.3
104
2.8222
1.0
111
1.4111
1.1
109
2.1167
1.1
181
2.8222
0.9
25
6.3500
1.7
9109
15.4473
3.0
1.5GT
1.500
0.9
2GT
2.000
1.3
3GT
3.000
2.5
D3GT
3.000
2.5
5GT
5.000
4.0
D5GT
5.000
4.3
EV5GTC EV8YU
EV8YU2 EV8YUC
5.000
3.8
EV5GT
5.000
4.0
8.000
5.1
8.000
4.8
8YU
8.000
5.2
8YUF
8.000
6.1
D8YU
8.000
5.4
Refertotheexplanationof"MASS"buttonatpage5and6. Asforthespecialpitchor
thebelt,pleaserefertheunitmasstableonthenextpageandinputcorrectly.
７.  Unitmasstableofthepreinstalledbelt
■Table2:ForU-550,508,507andU-505,305unitmasstable
Dataofunitmasscanbeinputbyfoursignificantdigits,i.e.threedigitsofintegerand
onedigitbelowdecimalpointing/mmWxmLfrom0.1to999.9g/mmWxmL.
８.  UnitmasstableofGateUnittaAsiatoothshapetimingbelt
Note:Inputwithavalue10timesaslargeasaunitmasslisted(g/cm)usedinU-303(outofsalesmodel).
1.5GT
2GT
3GT
D3GT
5GT
EV5GT
EV5GTC
D5GT
8YU
0.9
1.3
2.5
2.5
4.0
4.0
3.8
4.3
5.2
8YUF
EV8YU
EV8YUC
EV8YU2
D8YU
8MGT
14MGT
EV14M
EV14M2
6.1
5.1
4.8
5.1
5.4
4.7
8.0
8.7
8.3
3M
D3M
5M
D5M
8M
D8M
14M
D14M
20M
2.4
2.3
3.8
4.2
6.1
6.3
10.0
11.9
12.8
MXL
XL
DXL
L
DL
H
DH
XH
XXH
1.2
2.1
1.9
3.1
3.3
3.8
4.4
11.1
14.8
3VX
5VX
8VX
J（V）
PK（V）
L（V）
A（V）
B（V）
C（V）
59.8
165.6
525.6
8.6
20.0
30.4
103.2
166.0
298.8
D（V）
E（V）
3VXPB
5VXPB
5MPF
7MPF
11MRF
（E）PJ
534.6
734.4
75.7
210.9
10.5
25.7
52.1
7.5
Item Unitmass Item Unitmass Item Unitmass Item Unitmass Item Unitmass Item Unitmass
Toothshapebelt（Standardconstruction） Vbelt
■Table1:ToothandVbeltlist
NOTE
Item BELTTYPE
EV5GTC
8YUF
EV8YUC
EV8YU2
EV5GTCarbon
8YUFluorine
EV8YUCarbon
EVⅡ8YU
Item BELTTYPE
8MGT
14MGT
EV14M2
3VXPB
Polychain8MGT
Polychain14MGT
EV
Ⅱ 14M
3VXPoweredband
Item BELTTYPE
5ＶXPB
5MPF
7MPF
11MPF
5VXPoweredband
Polyflex5M
Polyflex7M
Polyflex11M
Item BELTTYPE
＊-K
＊-S
Aramid(Kevlar)cord
GatesTPUbelt
Steelcord
GatesTPUbelt
(unit:g/mmwidthxmlength) (unit:g/mmwidthxmlength)unitmass:Masspermeterlengthofonerib(g/mlength)
XL-K
L-K
H-K
T5-K
T10-K
XL-S
L-S
H-S
T5-S
1.9
3.0
3.2
2.0
3.6
2.1
3.5
3.9
2.2
T10-S
AT10
AT20
5M-S
8M-S
14M-S
8YU-S
4.3
5.6
9.9
4.1
5.9
10.7
5.2
GatesTPUbelt（Longlengthurethanebelt）
６-１.Howtoinputtheunit  
 mass（Refertotheunit
masstablesonnextpage） 
●Tooth&Flattimingbelt
Toinputtheunitmassiswidth(mm)×
length(m)ing/mmwidth×mLength.
1.Datacapacityis000.1〜999.9g/mm
width×mLength
2.Abletoinputwithfoursignificant
digitfiguresofthreecolumnsof
integersanddecimalonecolumn
●Tooth&Vbeltfromthepre-install 
data
Push"MASS"bottommorethanone
second,belttypeshowsuponthe
screen.Withusing"UP"or"DOWN" 
buttontoselectandpush"MEASURE"
toset.   
●V,V-RibbedbeltandWire
Inputthemasspermeteroflengthin
"g/mlength"forunitmass. 
Abletoinputbyfoursignificantdigits,
i.e.threedigitsofintegerandonedigit
belowdecimalpointfrom000.1upto
999.9g/mL.Unitmasscorresponds 
toonepieceforV-beltandwire,and
oneribforV-ribbedbelt.
Note:UnitmassofU-550,U-508,U-507,
andU-505,U-305is10timestheinputof
conventionaltypeU-303sincetheinput
unithasbeenchanged.  
Therefore,whenavalueisinputin
conventionalunitmass（g/cm2）,
measuredtensionisdisplayedin1/10.
（Nochangeforthemeasuredfrequency
onthescreen）
６-２.Howtoinputthebelt
 widthorthenumberof
 belts(ribs)   
●TimingorFlatbelt
Toputthedateisforbeltwidthis
000.1mm〜999.9mm,threedigitsof
integerandonedigitbelowdecimal
pointinmm.   

●V,Vribbedbelt,Wire 
ForVbeltandWire,putonepiece.
ForVribbedbelt,putthenumberof
ribsofV-ribbedbelt.
６-３.Howtoputthevalueof
 spanlength  
Spanlengthisadistancebetween
contactswithpulley,andcanbe
calculatedbytheffollowingcalculating
formula.    
Alternatively,measurethedistance
betweenpulleycontactswithatape
measureandput.
S：Spanlength （
mm ）
C：Distancebetweenaxes （ mm ）
Dp： Largepulleypitchouterdiameter （ mm ）
dp： Smallpulleypitchouterdiameter （ mm ）
S＝ C − （Dp−dp）
4
22
Flattiming
belt
V-Ribbedbelt
Vbelt
Wire
g/mmW×mL
g/Ribbed×mL
g/onebelt×mL
g/onebelt×mL
mm
mm
mm
mm
ｍｍ
Numberof
Ribbed
1
1
MASS WIDTH SPAN
Item Unitmass Item Unitmass
６.Howtoinputthedata
1.9
‑
5.080
2.1
XL
3.0
‑
9.525
3.5
L
3.2
‑
12.700
3.9
H
2.0
2.2
5.000
2.2
T5
3.6
4.0
10.000
4.3
T10
3.9
‑
10.000
‑
WT10
‑
3.5
5.000
3.5
AT5
‑
5.7
10.000
5.6
AT10
‑
‑
20.000
9.9
AT20
‑
‑
5.000
4.1
5M
‑
‑
8.000
5.9
8M
‑
‑
14.000
10.7
14M
‑
‑
8.000
5.2
8YUToothshape
Pitch（mm）
Aramid
＊E：Endless C：Openend F：Flex
Steel E/C
＊
F ＊
u550_e_manual.indd 11 2020/12/08 16:18

9 10
1
2
3
●Listoftimingbeltunitmass
Timingbelt
HTDbelt
GTbelt
4PolychainGTcarbonbelt
5GatesTPUbelt
6Specialpitchbelt
Toothshape
Pitch（mm）
MXL
2.032
1.2
XXL（50）
3.175
1.4
XL
5.080
2.1
DXL
5.080
1.9
L
9.525
3.1
DL
9.525
3.3
H
12.700
3.8
DH
12.700
4.4
XH
22.225
11.1
XXH
31.750
14.8
Unitmass
（g/mmwidth×mlength）
Toothshape
Pitch（mm）
Unitmass
（g/mmwidth×mlength）
Toothshape
Pitch（mm）
Unitmass
（g/mmwidth×mlength）
Toothshape
Pitch（mm）
Unitmass
（g/mmwidth×mlength）
Toothshape
Pitch（mm）
Unitmass
（g/mmwidth×mlength）
3M-HTD
3.000
2.4
D3M-HTD
3.000
2.3
5M-HTD
5.000
3.8
D5M-HTD
5.000
4.2
8M-HTD
8.000
6.1
D8M-HTD
8.000
6.3
EV14M
14.000
8.7
EV14M2
14.000
8.3
14M-HTD
14.000
10.0
D14M-HTD
14.000
11.9
20M-HTD
20.000
12.8
8M-GT
8.000
4.7
14M-GT
14.000
8.0
101
1.5875
1.0
102
2.0320
1.3
103
2.1167
1.3
104
2.8222
1.0
111
1.4111
1.1
109
2.1167
1.1
181
2.8222
0.9
25
6.3500
1.7
9109
15.4473
3.0
1.5GT
1.500
0.9
2GT
2.000
1.3
3GT
3.000
2.5
D3GT
3.000
2.5
5GT
5.000
4.0
D5GT
5.000
4.3
EV5GTC EV8YU
EV8YU2 EV8YUC
5.000
3.8
EV5GT
5.000
4.0
8.000
5.1
8.000
4.8
8YU
8.000
5.2
8YUF
8.000
6.1
D8YU
8.000
5.4
Refertotheexplanationof"MASS"buttonatpage5and6. Asforthespecialpitchor
thebelt,pleaserefertheunitmasstableonthenextpageandinputcorrectly.
７.  Unitmasstableofthepreinstalledbelt
■Table2:ForU-550,508,507andU-505,305unitmasstable
Dataofunitmasscanbeinputbyfoursignificantdigits,i.e.threedigitsofintegerand
onedigitbelowdecimalpointing/mmWxmLfrom0.1to999.9g/mmWxmL.
８.  UnitmasstableofGateUnittaAsiatoothshapetimingbelt
Note:Inputwithavalue10timesaslargeasaunitmasslisted(g/cm)usedinU-303(outofsalesmodel).
1.5GT
2GT
3GT
D3GT
5GT
EV5GT
EV5GTC
D5GT
8YU
0.9
1.3
2.5
2.5
4.0
4.0
3.8
4.3
5.2
8YUF
EV8YU
EV8YUC
EV8YU2
D8YU
8MGT
14MGT
EV14M
EV14M2
6.1
5.1
4.8
5.1
5.4
4.7
8.0
8.7
8.3
3M
D3M
5M
D5M
8M
D8M
14M
D14M
20M
2.4
2.3
3.8
4.2
6.1
6.3
10.0
11.9
12.8
MXL
XL
DXL
L
DL
H
DH
XH
XXH
1.2
2.1
1.9
3.1
3.3
3.8
4.4
11.1
14.8
3VX
5VX
8VX
J（V）
PK（V）
L（V）
A（V）
B（V）
C（V）
59.8
165.6
525.6
8.6
20.0
30.4
103.2
166.0
298.8
D（V）
E（V）
3VXPB
5VXPB
5MPF
7MPF
11MRF
（E）PJ
534.6
734.4
75.7
210.9
10.5
25.7
52.1
7.5
Item Unitmass Item Unitmass Item Unitmass Item Unitmass Item Unitmass Item Unitmass
Toothshapebelt（Standardconstruction） Vbelt
■Table1:ToothandVbeltlist
NOTE
Item BELTTYPE
EV5GTC
8YUF
EV8YUC
EV8YU2
EV5GTCarbon
8YUFluorine
EV8YUCarbon
EVⅡ8YU
Item BELTTYPE
8MGT
14MGT
EV14M2
3VXPB
Polychain8MGT
Polychain14MGT
EV
Ⅱ 14M
3VXPoweredband
Item BELTTYPE
5ＶXPB
5MPF
7MPF
11MPF
5VXPoweredband
Polyflex5M
Polyflex7M
Polyflex11M
Item BELTTYPE
＊-K
＊-S
Aramid(Kevlar)cord
GatesTPUbelt
Steelcord
GatesTPUbelt
(unit:g/mmwidthxmlength) (unit:g/mmwidthxmlength)unitmass:Masspermeterlengthofonerib(g/mlength)
XL-K
L-K
H-K
T5-K
T10-K
XL-S
L-S
H-S
T5-S
1.9
3.0
3.2
2.0
3.6
2.1
3.5
3.9
2.2
T10-S
AT10
AT20
5M-S
8M-S
14M-S
8YU-S
4.3
5.6
9.9
4.1
5.9
10.7
5.2
GatesTPUbelt（Longlengthurethanebelt）
６-１.Howtoinputtheunit  
 mass（Refertotheunit
masstablesonnextpage） 
●Tooth&Flattimingbelt
Toinputtheunitmassiswidth(mm)×
length(m)ing/mmwidth×mLength.
1.Datacapacityis000.1〜999.9g/mm
width×mLength
2.Abletoinputwithfoursignificant
digitfiguresofthreecolumnsof
integersanddecimalonecolumn
●Tooth&Vbeltfromthepre-install 
data
Push"MASS"bottommorethanone
second,belttypeshowsuponthe
screen.Withusing"UP"or"DOWN" 
buttontoselectandpush"MEASURE"
toset.   
●V,V-RibbedbeltandWire
Inputthemasspermeteroflengthin
"g/mlength"forunitmass. 
Abletoinputbyfoursignificantdigits,
i.e.threedigitsofintegerandonedigit
belowdecimalpointfrom000.1upto
999.9g/mL.Unitmasscorresponds 
toonepieceforV-beltandwire,and
oneribforV-ribbedbelt.
Note:UnitmassofU-550,U-508,U-507,
andU-505,U-305is10timestheinputof
conventionaltypeU-303sincetheinput
unithasbeenchanged.  
Therefore,whenavalueisinputin
conventionalunitmass（g/cm2）,
measuredtensionisdisplayedin1/10.
（Nochangeforthemeasuredfrequency
onthescreen）
６-２.Howtoinputthebelt
 widthorthenumberof
 belts(ribs)   
●TimingorFlatbelt
Toputthedateisforbeltwidthis
000.1mm〜999.9mm,threedigitsof
integerandonedigitbelowdecimal
pointinmm.   

●V,Vribbedbelt,Wire 
ForVbeltandWire,putonepiece.
ForVribbedbelt,putthenumberof
ribsofV-ribbedbelt.
６-３.Howtoputthevalueof
 spanlength  
Spanlengthisadistancebetween
contactswithpulley,andcanbe
calculatedbytheffollowingcalculating
formula.    
Alternatively,measurethedistance
betweenpulleycontactswithatape
measureandput.
S：Spanlength （
mm ）
C：Distancebetweenaxes （ mm ）
Dp： Largepulleypitchouterdiameter （ mm ）
dp： Smallpulleypitchouterdiameter （ mm ）
S＝ C − （Dp−dp）
4
22
Flattiming
belt
V-Ribbedbelt
Vbelt
Wire
g/mmW×mL
g/Ribbed×mL
g/onebelt×mL
g/onebelt×mL
mm
mm
mm
mm
ｍｍ
Numberof
Ribbed
1
1
MASS WIDTH SPAN
Item Unitmass Item Unitmass
６.Howtoinputthedata
1.9
‑
5.080
2.1
XL
3.0
‑
9.525
3.5
L
3.2
‑
12.700
3.9
H
2.0
2.2
5.000
2.2
T5
3.6
4.0
10.000
4.3
T10
3.9
‑
10.000
‑
WT10
‑
3.5
5.000
3.5
AT5
‑
5.7
10.000
5.6
AT10
‑
‑
20.000
9.9
AT20
‑
‑
5.000
4.1
5M
‑
‑
8.000
5.9
8M
‑
‑
14.000
10.7
14M
‑
‑
8.000
5.2
8YUToothshape
Pitch（mm）
Aramid
＊E：Endless C：Openend F：Flex
Steel E/C
＊
F ＊
u550_e_manual.indd 12 2020/12/08 16:18

11 12
3PollychainGTCarbonBelt
＊Contactusabout20Mtype.
１０ .  ThestandardinstallationtensiontableoftheGUAtimingbelt
1TimingBelt
2GT&HTDBelt
Width
（
mm ）
Tooth
Shape
Width
（
mm ）
Tooth
Shape
Width
（
mm ）
Tooth
Shape
Width
（
mm ）
Tooth
Shape
Tooth
Shape
1.5GT
1.5 2.0 2.5 3.0 4.0 6.0
3.4 4.4 5.6 7.8
9.0 12 15 20 25 30 40 50 55 60 70 85 100 115 130
2GT
EV5GT
4.3 5.2 6.4 9.4 15.8 25.2 34.6 44.1
3GT・3M 29 44 59 74 98
5GT・5M 55 96
210 280 350
137 178 220 302
8YU・8M
17871 98 125 232 286 393
14M
410 600 920 1100
EV14M
150 170
8MGT
14MGT
MIN
MAX
MIN
MAX
320240190 340 400 480 580 640 800 970 1000 1130 1290
430330260 460 540 650 780 870 1080 1300 1340 1520 1730
15201230820 1640 2050 2460 2790 2870 3280 3690 4100 4720 5130
205016701100 2220 2780 3330 3770 3890 4440 5000 5550 6380 6940
5330
7220
201512 21 25 30 36 40 50 62 7060 80
373020 40 50 60 68 70 80 100 11590 125 130
Width
 （ mm ）
Width2（shapetype）
Tooth
Shape
MXL
3.2 4.8 6.4
（025）（031）（037）（050）（075）（100）（150）（200）（300）（400）（500）
7.9 9.5
2.9 5.1 7.6 10.3 11.8
XL
L
H
XH
XXH
13.7 19.6 24.5
52.0 87.3 123.0
222 312 668486
909 20201430
1120 24801750 3210
12.7 19.1 25.4 38.1 50.8 101.6
1050
76.2 127.0
1300
560 740 1100 1200 1400 380034002900250021001800
441 618 775 902 1190 2090 31901470
EV8YU
235 294 343 500 765 892 1100637
760
20
2.3
Unit（N）
Unit（N）
4GatesTPUBelt
T5
10 15 20 25 30 40
29 39 49 59 19698
50 55 60 80 85 100
T10
AT20
129 173 216 259 863431
AT5 773376
AT10 637183 235 294 343
637 765 1020 1275235 294 343 500
1301
637235 343
618 902 1470 1792
1301
5M
775 1792
14M
8YU
8M
220
20
60 99 137
376220
60 137
178
Unit（N）
XL
12.7 19.1 25.4 50.8 101.6
（050）（075）（100）（200）（400）
37 49 97 193
L6744 88 177 353
162‑ 216 431 863
H
25
Unit（N）
Unit（N）
[M(g/mlength)=Masspermeterlengthofonerib(g/mlength)xTensioncorrectionfactor]
1SuperHCtype
2Polyflextype
3MicroVtype
4StandardVtype
Inputitem
WEIGHT
(Massxcompensation)
coefficient
per1rib1mlength
WEIGHT
(Massxcompensation)
coefficient
per1rib1mlength
WEIGHT
(Massxcompensation)
coefficient
per1rib1mlength
WEIGHT
(Massxcompensation)
coefficient
per1rib1mlength
3VXSingle
68.0×0.88＝59.8
3VXPowerband
87.0×0.87＝75.7
5VXSingle
182.0×0.91＝165.6
5VXPowerband
237.0×0.89＝210.9
8VSingle
657.0×0.8＝525.6
Inputitem
5M
11.0×0.95＝10.5
7M
27.0×0.95＝25.7
11M
56.0×0.93＝52.1
Inputitem Jsection
9.0×0.95＝8.6
Lsection
32.0×0.95＝30.4
PKsection
21.0×0.95＝20.0
Inputitem
A
120.0×0.86＝103.2
B
200.0×0.83＝166.0
C
360.0×0.83＝298.8
D
660.0×0.81＝534.6
E
1020.0×0.72＝734.4
TheVbelthashighcomparativerigidity,thegapofrevisionisnecessaryforthe
actualandmeasuredtensionvalueintherangeofthestandardinstallationtension.
Therefore,itshouldbeadoptedasWEIGHTlevelwhichiscalculatedbythefollowing;
９. TheunitmasstableofVbeltmadebyGates
■ Table3:SpecializedunitmasstableforU-550,508,507,505,503
＊ContactusforunitmassoftoothedbeltforautomobileengineandV-ribbedbeltfor
drivingautomobileengineauxiliaryequipment.
Note:InquiretousfortheunitmassofV-ribbedbeltandtoothbeltforautomobileengines
 withandautomobileenginesupplementaryplanedrive.
Width
 （ mm ）
Width2（shapetype）
u550_e_manual.indd 13 2020/12/08 16:18

11 12
3PollychainGTCarbonBelt
＊Contactusabout20Mtype.
１０ .  ThestandardinstallationtensiontableoftheGUAtimingbelt
1TimingBelt
2GT&HTDBelt
Width
（
mm ）
Tooth
Shape
Width
（
mm ）
Tooth
Shape
Width
（
mm ）
Tooth
Shape
Width
（
mm ）
Tooth
Shape
Tooth
Shape
1.5GT
1.5 2.0 2.5 3.0 4.0 6.0
3.4 4.4 5.6 7.8
9.0 12 15 20 25 30 40 50 55 60 70 85 100 115 130
2GT
EV5GT
4.3 5.2 6.4 9.4 15.8 25.2 34.6 44.1
3GT・3M 29 44 59 74 98
5GT・5M 55 96
210 280 350
137 178 220 302
8YU・8M
17871 98 125 232 286 393
14M
410 600 920 1100
EV14M
150 170
8MGT
14MGT
MIN
MAX
MIN
MAX
320240190 340 400 480 580 640 800 970 1000 1130 1290
430330260 460 540 650 780 870 1080 1300 1340 1520 1730
15201230820 1640 2050 2460 2790 2870 3280 3690 4100 4720 5130
205016701100 2220 2780 3330 3770 3890 4440 5000 5550 6380 6940
5330
7220
201512 21 25 30 36 40 50 62 7060 80
373020 40 50 60 68 70 80 100 11590 125 130
Width
 （ mm ）
Width2（shapetype）
Tooth
Shape
MXL
3.2 4.8 6.4
（025）（031）（037）（050）（075）（100）（150）（200）（300）（400）（500）
7.9 9.5
2.9 5.1 7.6 10.3 11.8
XL
L
H
XH
XXH
13.7 19.6 24.5
52.0 87.3 123.0
222 312 668486
909 20201430
1120 24801750 3210
12.7 19.1 25.4 38.1 50.8 101.6
1050
76.2 127.0
1300
560 740 1100 1200 1400 380034002900250021001800
441 618 775 902 1190 2090 31901470
EV8YU
235 294 343 500 765 892 1100637
760
20
2.3
Unit（N）
Unit（N）
4GatesTPUBelt
T5
10 15 20 25 30 40
29 39 49 59 19698
50 55 60 80 85 100
T10
AT20
129 173 216 259 863431
AT5 773376
AT10 637183 235 294 343
637 765 1020 1275235 294 343 500
1301
637235 343
618 902 1470 1792
1301
5M
775 1792
14M
8YU
8M
220
20
60 99 137
376220
60 137
178
Unit（N）
XL
12.7 19.1 25.4 50.8 101.6
（050）（075）（100）（200）（400）
37 49 97 193
L6744 88 177 353
162‑ 216 431 863
H
25
Unit（N）
Unit（N）
[M(g/mlength)=Masspermeterlengthofonerib(g/mlength)xTensioncorrectionfactor]
1SuperHCtype
2Polyflextype
3MicroVtype
4StandardVtype
Inputitem
WEIGHT
(Massxcompensation)
coefficient
per1rib1mlength
WEIGHT
(Massxcompensation)
coefficient
per1rib1mlength
WEIGHT
(Massxcompensation)
coefficient
per1rib1mlength
WEIGHT
(Massxcompensation)
coefficient
per1rib1mlength
3VXSingle
68.0×0.88＝59.8
3VXPowerband
87.0×0.87＝75.7
5VXSingle
182.0×0.91＝165.6
5VXPowerband
237.0×0.89＝210.9
8VSingle
657.0×0.8＝525.6
Inputitem
5M
11.0×0.95＝10.5
7M
27.0×0.95＝25.7
11M
56.0×0.93＝52.1
Inputitem Jsection
9.0×0.95＝8.6
Lsection
32.0×0.95＝30.4
PKsection
21.0×0.95＝20.0
Inputitem
A
120.0×0.86＝103.2
B
200.0×0.83＝166.0
C
360.0×0.83＝298.8
D
660.0×0.81＝534.6
E
1020.0×0.72＝734.4
TheVbelthashighcomparativerigidity,thegapofrevisionisnecessaryforthe
actualandmeasuredtensionvalueintherangeofthestandardinstallationtension.
Therefore,itshouldbeadoptedasWEIGHTlevelwhichiscalculatedbythefollowing;
９. TheunitmasstableofVbeltmadebyGates
■ Table3:SpecializedunitmasstableforU-550,508,507,505,503
＊ContactusforunitmassoftoothedbeltforautomobileengineandV-ribbedbeltfor
drivingautomobileengineauxiliaryequipment.
Note:InquiretousfortheunitmassofV-ribbedbeltandtoothbeltforautomobileengines
 withandautomobileenginesupplementaryplanedrive.
Width
 （ mm ）
Width2（shapetype）
u550_e_manual.indd 14 2020/12/08 16:18

13 14
Thankyouforchoosingoursonictensionmeter(U-550).
Weguaranteeforoneyearforthemainbodyandsixmonthsforthesensor.
Ifoursonictensionmeter(U-508)failsduetoamanufacturingorworkmanshipdefect
duringtheperiod,werepairitfreeofcharge.
Pleasecontactourdistributorfromwhichyoupurchasedfortherepair.(Seethe
enclosedwarranty.)
Whentheofficialapprovalisrequired,directthesensortoacommunicator
whichemitsstablefrequencysoundfrom10to5000Hz,andmeasurethesamewayas
measuringtension.Thecalibrationisenabledeasily.
Tensionmeterofficialapprovaldevice(U-305-OS1)isalsointhemarket.
Ifneeded,pleasecontactoursalesdepartmentforpaidofficialapproval.
12.Guarantee&RepairGuidelines
Abouttheinstallationtensionlevelofourtoothbelt,thegapwillnotoccurbetweenU-550measurementandtruetensionintherangeofNote1
andNote3.Soitisnotnecessarytosetatensioncompensatingrate.
Note1）Asforthemeasuringinstallationtension,setthebeltonthemachinefirstandmeasuretheaveragetensionofstretchandlooseside
ofthebeltafterspinningseveraltimestomakethemachinerunsmoothly.Ifbothspanshavethedifferenceofmorethan30%,please
adjustthemandmeasureagain.
Note2）Measurewithaspanhavingthelengthmorethan20timesthetoothpitch.
（Becauseahighervaluethanactualisshowedattheshortrangetobeaffectedbytherigidityofthebeltitself.)
Note3）Setthetensionrangemorethan1/3ofstandardinstallationtension.
（Becauseahighervaluethanactualisshowedatthelowtensiontobeaffectedbyrigidityofbeltitself.)
Alsobythemeasuringmethodofourtensionmeter,measurementinanextremelylowtensionrangeissometimesimpossible.
Note4）
Asforthespecialbeltlikeawideandback-ribbedbeltonitsbackforconveying,thegapbetweenthetruetensionvalueispresumed,
sothatsimplecalibrationisrequiredforcheckingtensionwhichneedscomparativeprecision.
Asforexperiencedmachinesinstallthebeltfollowingtheprocedureprovidedforacorrespondingmachine,itiscapableofmanagingtension
bysettingcyclenumericalvaluewhichapprovedbyU-550afterward.
■MainBody
■Accessories
●U-550
●Option
●PowerSupply:TwotripleAbatteries.Alkaline
batteryisrecommended.
●OverallSize:160(H)×59(W)×26(26) 
●Mass:120g
●Temperatureandhumidityrangeforuseand
storage:-10〜-50℃,80%
(freefromcondensation)
１１.SpecificationofU-550
1）Flexibletypesensor
・Sensorouterdiameter:12.5mm
・Totallength:170mm
・Measurablefrequencyband:10Hz〜5000Hz

2）Softcaseforcarrying 
・
Capableofcontainingthebodyoftensionmeter,
flexibletypesensoretc.  
・ Totallength:170mm
・ Measurablefrequencyband:10Hz〜5000Hz
3）TwotripleAbatteries
4）OperationmanualofU-550
5）Operatingproceduresheetforcarrying
6）Inspectionacceptancecertificate
7）Warranty
8）TwoUSBconnectingcaps(oneisforaspare)
9）Operatingmanualofapplicationsoftwarefor
 U-550
＊PleaseusetheMINI-B5asUSBconnector
1）Flatflexiblesensor
・Sensorouterdiameter:Thickness10mm,
Width20mm
・Totallength:170mm
・Measurablefrequencyband:10Hz〜5000Hz
2）Longarmsensor
・Sensorouterdiameter:12.5mm
・Totallength:350mm
・Measurablefrequencyband:10Hz〜5000Hz
3）Electromagneticsensor
・Totallength:1m
・
Measurablefrequencyband:10Hz〜5000Hz
4）Cordtypesensor
・Sensorouterdiameter:12.5mm
・Totallength:1m
・
Measurablefrequencyband:10Hz〜5000Hz
u550_e_manual.indd 15 2020/12/08 16:18

13 14
Thankyouforchoosingoursonictensionmeter(U-550).
Weguaranteeforoneyearforthemainbodyandsixmonthsforthesensor.
Ifoursonictensionmeter(U-508)failsduetoamanufacturingorworkmanshipdefect
duringtheperiod,werepairitfreeofcharge.
Pleasecontactourdistributorfromwhichyoupurchasedfortherepair.(Seethe
enclosedwarranty.)
Whentheofficialapprovalisrequired,directthesensortoacommunicator
whichemitsstablefrequencysoundfrom10to5000Hz,andmeasurethesamewayas
measuringtension.Thecalibrationisenabledeasily.
Tensionmeterofficialapprovaldevice(U-305-OS1)isalsointhemarket.
Ifneeded,pleasecontactoursalesdepartmentforpaidofficialapproval.
12.Guarantee&RepairGuidelines
Abouttheinstallationtensionlevelofourtoothbelt,thegapwillnotoccurbetweenU-550measurementandtruetensionintherangeofNote1
andNote3.Soitisnotnecessarytosetatensioncompensatingrate.
Note1）Asforthemeasuringinstallationtension,setthebeltonthemachinefirstandmeasuretheaveragetensionofstretchandlooseside
ofthebeltafterspinningseveraltimestomakethemachinerunsmoothly.Ifbothspanshavethedifferenceofmorethan30%,please
adjustthemandmeasureagain.
Note2）Measurewithaspanhavingthelengthmorethan20timesthetoothpitch.
（Becauseahighervaluethanactualisshowedattheshortrangetobeaffectedbytherigidityofthebeltitself.)
Note3）Setthetensionrangemorethan1/3ofstandardinstallationtension.
（Becauseahighervaluethanactualisshowedatthelowtensiontobeaffectedbyrigidityofbeltitself.)
Alsobythemeasuringmethodofourtensionmeter,measurementinanextremelylowtensionrangeissometimesimpossible.
Note4）
Asforthespecialbeltlikeawideandback-ribbedbeltonitsbackforconveying,thegapbetweenthetruetensionvalueispresumed,
sothatsimplecalibrationisrequiredforcheckingtensionwhichneedscomparativeprecision.
Asforexperiencedmachinesinstallthebeltfollowingtheprocedureprovidedforacorrespondingmachine,itiscapableofmanagingtension
bysettingcyclenumericalvaluewhichapprovedbyU-550afterward.
■MainBody
■Accessories
●U-550
●Option
●PowerSupply:TwotripleAbatteries.Alkaline
batteryisrecommended.
●OverallSize:160(H)×59(W)×26(26) 
●Mass:120g
●Temperatureandhumidityrangeforuseand
storage:-10〜-50℃,80%
(freefromcondensation)
１１.SpecificationofU-550
1）Flexibletypesensor
・Sensorouterdiameter:12.5mm
・Totallength:170mm
・Measurablefrequencyband:10Hz〜5000Hz

2）Softcaseforcarrying 
・
Capableofcontainingthebodyoftensionmeter,
flexibletypesensoretc.  
・ Totallength:170mm
・ Measurablefrequencyband:10Hz〜5000Hz
3）TwotripleAbatteries
4）OperationmanualofU-550
5）Operatingproceduresheetforcarrying
6）Inspectionacceptancecertificate
7）Warranty
8）TwoUSBconnectingcaps(oneisforaspare)
9）Operatingmanualofapplicationsoftwarefor
 U-550
＊PleaseusetheMINI-B5asUSBconnector
1）Flatflexiblesensor
・Sensorouterdiameter:Thickness10mm,
Width20mm
・Totallength:170mm
・Measurablefrequencyband:10Hz〜5000Hz
2）Longarmsensor
・Sensorouterdiameter:12.5mm
・Totallength:350mm
・Measurablefrequencyband:10Hz〜5000Hz
3）Electromagneticsensor
・Totallength:1m
・
Measurablefrequencyband:10Hz〜5000Hz
4）Cordtypesensor
・Sensorouterdiameter:12.5mm
・Totallength:1m
・
Measurablefrequencyband:10Hz〜5000Hz
u550_e_manual.indd 16 2020/12/08 16:18

SonicBeltTensionMeter
U-550OperationManual
Contents
１.Precautions P１
P３
P４
P５
P７
P9
２.Briefsummary,caution&check
pointsforthefailure
３.MeasurementprincipleofU-550
４.ExplanationofthepartsofU-550
mainbody
５.OperationprocedureofU-550
６.Howtoinputthedata
６-１Howtoinputtheunitmass
７.Unitmasstableofthe
preinstalledbelt
６-２Howtoinputthebeltwidthorthenumberofbelts(ribs)
６-３Howtoinputthevalueofspanlength
８.UnitmasstableofGateUnitta
Asiatoothshapetimingbelt
９.TheunitmasstableofVbelt
madebyGates
１０.Thestandardinstallationtension
 tableoftheGUAtimingbelt
P10
P１1
P10
１１.SpecificationofU-550
１２.Guarantee&RepairGuidelines
P１3
P12
P１4
ThismanualdescribesoperationprocedureofU-550.
Pleasereadthismanualthoroughlybeforeforfulluseoffunctions.
U-550MANUALV01
HEADOFFICE4-26SAKURAGAWA4-CHOME,NANIWA-KUOSAKA556-0022.JAPAN
TEL:[phone] FAX:[phone]
u550_e_manual.indd 1 2020/12/08 16:18