Rossi EP Series User manual

Operating instructions
Planetary gear reducers and gearmotors
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EP series

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3
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4UTD.175.09.2022.00_EN

1General and safety informations 5
1.1 Recycling 5
1.2 Safety 5
2Use conditions and limits 6
3Supply status 7
3.1 Name plate 7
3.2 Lubricant 8
3.3 Painting 8
3.4 Protections and packing 8
4Lifting, handling and storage 9
4.1 Receipt 9
4.2 Lifting and handling 9
4.3 Storage 10
5Installation 11
5.1 General 11
5.2 Screws and tightening torques 12
5.3 Flange mounting 14
5.4 Gear reducer mounting with slewing outputs 15
5.5 Foot mounting 15
5.6 Shaft mounting arrangements 16
5.7 Torque arm 16
5.8 Shaft end mounting 20
5.9 Hollow shaft mounting with shrink disc 20
5.10 Accessories mounting 23
6Universal ange adapter 28
Index
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7Motor mounting or replacement 29
7.1 Electric motors 29
7.2 Hydraulic motors 30
8Lubrication 31
9Commissioning 33
10 Cooling unit systems 35
11 Backstop device 39
12 Maintenance 39
13 Mounting positions, oil quantities and tanks 41
14 Plug positions and types 52
15 Troubles: causes and corrective actions 56
16 PB series - Parking brakes 57
Commissioning 63
Maintenance 63
Oil change 64
Seal change 64
Troubles: causes and corrective actions 64
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Keeping in mind the instructions in force:
• the elements of casing, gear pairs, shafts and bearings of gear reducer must be transformed into steel scraps. The
elements in cast iron will be subjected to the same treatment if there is no particular instructions;
• exhausted oils must be recycled and treated in accordance with environmental legislation.
This document provide information about handling, installation and maintenance of the planetary gear reducers.
All the people who work with the products presented in this operating instructions must carefully read and apply them rigorously.
The products correspond to the technical level reached at the moment the document is printed. Rossi S.p.A. reserves the right
to introduce, without notice, the necessary changes to improve e󰀩 ciency and safety of its products.
General and safety informations 1
1.1
Recycling
1.2
Safety
• Live
• At temperature higher than 50 °C
• Rotating during operations
• attention
• Don’t use to lift
• Lifting point
The paragraphs marked with symbols shown below contain dispositions to be strictly respected in order to assure personal
safety and to avoid any heavy damages to the machine or to the system.
IMPORTANT: the components supplied by Rossi must be incorporated into machinery and should not be commissioned
before the machinery in which the components have been incorporated conforms to:
• Machinery directive 2006/42/CE and subsequent updatings;
• "Electromagnetic compatibility (EMC)" directive 2004/108/EC and subsequent updatings.
ATTENTION!
Components in non-standard design or with special executions or with constructive variations may di󰀨 er in the
details from the ones described here following and may require additional information.
ATTENTION!
For the installation, use and maintenance of the electric motor (standard, brake or non-standard motor) or of the
possible motor-variator and/or the electric supply device (frequency converter, soft-start, etc.) and accessories,
if any ( ow indicators, independent cooling unit, thermostat, ect) consult the attached speci c documentation.
If necessary, require it.
ATTENTION!
For any clari cation and/or additional information consult Rossi S.p.A. and specify all name plate data.
Gear reducers and gearmotors of presented in this operating instruction are normally suitable for installations in industrial areas:
additional protection measures, if necessary for di󰀨 erent employs, must be adopted and assured by the person responsible
for the installation.
An incorrect installation, an improper use, the removing or disconnection of protection devices, the lack of inspections and
maintenance, improper connections may cause severe personal injury or property damage.
Therefore, the products must be moved, installed, commissioned, handled, controlled, serviced and re-paired exclusively by
responsible quali ed personnel.
Quali ed personnel must be specially trained and have the experience necessary to recognize risks associated with these
products and to avoid possible hazards.
7
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General and safety informations 1
Use conditions and limits 2
It is recommended to pay attention to all existing safety laws and standards concerning correct installation.
Whenever personal injury or property damage may occur, due to falling or projecting parts of gear reducer or of its parts, foresee
adequate supplementary protection devices against:
• release or breakage of fastening screws;
• rotation or unthreading of the gear reducer from shaft end of driven machine following to accidental breakage of the reaction
arrangement;
• accidental breakage of the shaft end of driven machine.
When operating on gear reducer or on components connected to it, the machine must be at rest: disconnect motor (including
auxiliary equipments) from power supply, gear reducer from load, be sure that safety systems are on against any accidental
starting and, if necessary, pre-arrange mechanical locking devices (to be removed before commissioning).
ATTENTION!
During the operation the gear reducers may have hot surfaces.
ATTENTION!
During the operations take protection due to possible warm oil contact.
If deviations from normal operation occur (temperature increase, unusual noise, etc) immediately switch o󰀨 the machine.
Gear reducers are suitable to operate at ambient temperature 0 °C ÷+40 °C (with peaks -20 °C ÷+50 °C), with standard seal
rings and components.
The operation outside this range, with a minimum of -40 °C and a maximum of +60 °C, must be evaluated in relation to the
speci c operating conditions, duty cycle, type of lubricant, type of seals and cooling/heating system (where possible); please
contact Rossi S.p.A.
Allowed operational and storage ambient temperature in relation to lubricant type 1)
Synthetic
Lubricant Mineral Lubricant
Ambient Tem-
perature
Tamb
Running conditions
Minimum ambient temperature -20 °C -10 °C
Maximum ambient temperature +50 °C +40 °C
Minimum ambient temperature for ATEX design -20 °C -10 °C
Maximum ambient temperature for ATEX design +40 °C +40 °C
Storage condition
Minimum ambient temperature of storage condition -10 °C -10 °C
Maximum environment temperature of storage condition +50 °C +50 °C
Oil Tempera-
ture
Toil
Minimum oil temperature for partial load starting condition 2) -20 °C -10 °C
Minimum oil temperature for full load starting condition -10 °C -5 °C
Maximum nominal stabilized oil temperature allowed in continuos running condition (S1) +95 °C +95 °C 3)
Maximum peak and occasional oil temperature allowed with intermittent duty only +110 °C +110 °C
1) For selection of lubricant and optimal viscosity according to temperature T
amb
and in case of independent lubrication unit, refer to chapter
8.8 (Lubrication).
For starts and services with T
oil
< 0 °C , consider higher absorption on the electric motor according to the type of lubricant.
2) If full load service is required, provide gradual starting and stopping ramps, avoiding overloads and shocks.
3) For temperature value of T
oil
> 75 °C and < 95 °C it is recommended to use oils with at least viscosity grade 30 cSt at 95 °C.
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Supply status 3
3.1
Name plate
Assembled by subsidiaries
Gear
reducer size
Ratio
Product
code
Serial
number
Mass
Output
Date
Input
Mounting
position
Name plate
Every gear reducer is provided with a name plate in anodized aluminium containing main information necessary for a correct
identi cation of the product; the name plate must not be removed and must be kept integral and readable. All name plate data
must be speci ed on eventual spare part orders.
Gear
reducer size
Ratio
Product
code
Serial
number
Output
Date
Input
Mounting
position
QR code
Mass
Assembled by Rossi Italy
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Supply status and product designation 3
Overhanging free shaft ends and hollow shafts are treated with protective anti-rust long life oil.
All internal parts are protected with protective anti-rust oil. Unless otherwise agreed in the order, products are adequately
packed: on pallet, protected with a polyethylene lm, wound with adhesive tape and strap (bigger sizes); in carton pallet, wound
with adhesive tape and strap (smaller sizes); in carton boxes wound with tape (for small dimensions and quantities).
If necessary, gear reducers are conveniently separated by means of anti-shock foam cells or of lling cardboard.
Generally the packing is suitable for the normal road/rail transport. For sea transport it is necessary to foresee a special packing,
when ordering.
Before handling or transporting the gear reducers, be sure that the packing is in good conditions and suitable for the transport.
Do not stock packed products on top of each other.
3.3
Painting
3.4
Protections and packing
3.2
Lubricant
If not di󰀨erently stated, gear reducers until size 021A are supplied lled for the specic mounting position involved with synthe-
tic PAO oil as indicated in an additional label.
1) Before adding further coats of paint, properly protect the seal rings and carefully degrease and sand the gear reducer surfaces (instead of
sanding it is possible to apply a water-based primer coat).
Internal painting External painting Notes
Final color Blue RAL 5010 Features
Single-compound ester epoxy
or phenolic resin basis primer
(prepainted)
Single-compound ester epoxy
or phenolic resin basis primer
(prepainted)
+
Water-soluble
polyurethane
dual-compound enamel
Resistant to atmospheric and
aggressive agents
(atmospheric corrosivity category C3
according to ISO 12944-2).
Suitable for further coats of
dual-compound paints only1)
The internal painting does not
resist polyglycol synthetic oils
(polyalphaolefines synthetic oils
are suitable).
Remove by a scraper or sol-
vent the possible paint of gear
reducer coupling surfaces
Standard painting
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Lifting, handling and storage 4
Sizes D R
∅
001A, 002A – –
003A ... 006A 25 151
009A ... 015A 30 181
018A, 021A 35 213
⋎
*
*
**
*
Sizes 001A ... 021A details
Lifting and handling
* Not included
At receipt verify that the unit corresponds to the one ordered and has not been damaged during the transport, in case of
damages, report them immediately to the courier.
Avoid commissioning gear reducers, that are even slightly damaged. Report any non-compliance to Rossi S.p.A..
First make sure that the lifting equipment (e.g. crane, hook, eye bolt, straps etc.) is suitable for the weight and size of the gear
reducer (the weight of the product are given in the name plate). When lifting, use only the attachment point marked in the
following  gures.
Pay attention to avoid lifting (max 15° during handling) and, if necessary, use additional straps only to balance the load.
Do not use front threads at the input shaft ends to lift the gear reducers.
Warning!
• Suspended load can fall
• Do not stand under the load
• Improper transport may result in damage to the gear reducer
4.1
Receipt
4.2
Lifting and handling
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Lifting, handling and storage 4
Size D R S
∅
1EL ... 4EL
3EB, 4EB
2EB 1EL ... 4EL
3EB, 4EB
2EB
022A 25 180 181 221 222
030A 30 184 204 197 231
031A 30 193 228 207 259
042A 30 193 209 207 259
043A 30 193 110 207 270
060A 30 170 243 229 277
061A 30 170 – 229 –
085A 30 187 284 252 312
125A 30 225 312 280 343
180A 35 230 – 312 –
250A 40 257 – 348 –
355A 50 299 – 404 –
500A 50 324 – 439 –
710A 60 362 – 489 –
*
*
*
Warning
Lifting and handling correct Lifting and handling incorrect
Sizes 022A ... 710A details
Lifting and handling
* Not included
Environment should be su󰀩 ciently clean, dry and free from excessive vibrations (ve 󰀨 ≤ 0,2 mm/s) to avoid damage to bearings
(excessive vibration should also guarded during transit, even if within wider range) and ambient storage temperature should be
0 ÷ +40 °C: peaks of 10 °C above and below are acceptable
(see also operation condition chapter 8.2).
The gear reducer  lled with oil must be positioned according to the mounting position mentioned on the name plate
.
Every six months rotate the shafts (some revolutions are su󰀩 cient) to prevent damage to bearings and seal rings.
In normal environments and provided there has been adequate protection during transport, the product is provided for a storage
period of up to 1 year.
For a 2 year storage period in normal environment it is necessary to pay attention also to the following instructions:
• generously grease the sealing, the shafts and the unpainted machined surfaces, if any, and periodically control conservation
state of the protective anti rust oil
• completely  ll the gear reducers with lubrication oil
For storages longer than 2 years or in aggressive environment or outdoors, consult Rossi S.p.A..
⋎
4.3
Storage
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Installation 5
Before the installation, verify that:
• there are no damages on shafts and on mating surfaces
• design is suitable to the environment (temperature, atmosphere,etc.). In case of installation in environment with the risk of
explosion occur to require during the order the execution ATEX II 2GD e 3GD
• be sure that the structure on which gear reducer is  tted is plane, levelled and strong enough in order
to assure  tting stability and vibration absence (vibration speed ve 󰀨 ≤ 3,5 mm/s for PN< 15 kW and
ve 󰀨 ≤ 4,5 mm/s for PN> 15 kW are acceptable), keeping in mind all transmitted forces due to the masses, to the torque, to the
radial and axial loads
• the actual mounting position corresponds to the name plate data
• where backstop device is provided, verify the correct direction according to application requirements
• carefully align the gear reducer with the motor and the driven machine (with the aid of shims if need be), interposing  exible
couplings whenever possible
• mount the gear reducer so as to allow a free passage of air for cooling both gear reducer and motor (especially at their fan
side, accessory fan cooling if provided)
• avoid any obstruction to the air  ow; heat sources near the gear reducer that might a󰀨 ect the temperature of cooling air and of
gear reducer (for radiation); insu󰀩 cient air recycle and applications hindering the steady dissipation of heat
• verify that the gear reducer housing is dust-free in order to achieve an e󰀩 cient heat dissipation
• gear reducers and gearmotors should be protected, whenever possibile and by appropriate means, from solar radiation and
extremis of weather; weather protection becomes essential when high or low speed shafts are vertically disposed or when
the motor is installed vertical with fan upward
• mating surfaces (of gear reducer and machine) must be clean and su󰀩 ciently rough to provide a good friction coe󰀩 cient
(indicatively Ra 1,6 ÷ 3,2 µm). Remove by a scraper or solvent the eventual paint of gear reducer on coupling surfaces and,
especially in presence of external radial loads or torque required M2 ≥ 0,7 × MN2, apply locking adhesives
• when external loads are present use pins or locking blocks, if necessary
Before wiring-up the gearmotor make sure that motor voltage corresponds to input voltage. If direction of rotation is not as
desired, invert two phases at the terminals.
Y-∆ starting should be adopted for no-load starting (or with a very small load) and for smooth starts, low starting current and
limited stresses, if requested.
If overloads are imposed for long periods or if shocks or danger of jamming are envisaged, then motor-protection, electronic
torque limiters, fluid couplings, safety couplings, control units or other similar devices should be fitted.
Protection of the motor with a thermal cut-out is recommended. Where duty cycles involve a high number of on-load
starts, it is necessary to utilise
thermal probes for motor protection (fitted on the wiring); magnetothermic breaker is
unsuitable since its threshold must be set higher than the motor nominal current of rating.
Connect thermal probes, if any, to auxiliary safety circuits.
Use varistors and/or RC filters to limit voltage peaks due to contactors.
• For accessories not supplied by Rossi pay attention to their correct dimensioning; if necessary consult us.
Warning!
Bearings life, safe shaft and coupling running depend on precise alignment of the shafts.
In presence of backstop device it is not recommended to temporarily dismount the motor from the reducer to avoid
damaging the device.
Carefully align the gear reducer with the motor and the driven machine (with the aid of shims if need be), interposing  e-
xible couplings whenever possible.
Whenever a leakage of lubricant could cause heavy damages, increase the frequency of inspections and/or envisage
appropriate control devices (e.g.: remote oil level gauge, lubricant for food industry, etc.).
In polluting environment, take suitable precautions against lubricant contamination through seal rings or other.
For brake or special motors, consult us for speci c information.
5.1
General
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Size Design
(es. C038M1 F10a)
C... F... K... F... K... F... C... P...
S... F... Z... F... Z... F... S... P...
H... A...
M... A...
n°d l n°d l n°d l n°d l
Ø min max Ø min max Ø min max Ø min
001A, 002A 8 M10 30 40 - - - - 8 M10 10 13 4 M14 40
003A 10 M12 35 35 10 M12 35 35 - - - - 4 M16 45
004A, 006A 10 M12 40 50 10 M12 35 35 - - - - 4 M16 45
009A, 012A 12 M14 45 55 12 M14 45 50 - - - - 4 M20 55
015A 16 M14 45 55 16 M14 45 50 - - - - 4 M20 55
018A, 021A 12 M16 55 75 12 M16 50 50 - - - - 4 M22 60
Sizes 001A ... 021A
Be careful to the tightening of the 12.9 screws. Over tightening can damage them.
The suggested tightening torque value are valid for an estimated friction coe󰀩 cient of µ = 0,14 typical for lightly oiled steel bolts,
black annealed or phosphatised and dry, cut mating threads in steel or cast iron.
Do not use lubricants altering the friction coe󰀩 cient for they may overload the screw connection.
Always use dynamometric wrench or similar and verify the tightening torque after the  rst hours of running.
Installation 5
5.2
Screws and tightening torques
According to the design and size stated on nameplate, use screws and tightening torques as shown in the following tables; at least
class 10.9 is necessary but in case of heavy stresses, alternate loads and shocks use class 12.9. Screws of class 12.9 must be
equipped (where indicated, e.g.: see following table) with ISO 7089 washers (300 HV min.).
Size Design
(e.g. C100M1 F10e)
C... F...
S... F...
H... A...
Z... F...
n°d l
Ø min
030A 24 M16 150
042A 28 M16 160
060A 24 M20 180
085A 28 M20 200
125A 28 M24 230
180A 32 M24 250
250A 28 M30 290
355A 32 M30 320
500A 28 M36 350
710A 32 M36 390
Size Design
(e.g. C100M1 F10z)
C... F...
S... F...
Where present, stop
pins must be used!
n°d l n°d1l1
Ø min Ø min
022A 12 M16 140 3 12 20
031A 15 M16 160 3 16 20
043A 24 M16 170 - - -
061A 30 M16 190 - - -
12.9 with washer
(300 HV min.)
Sizes 030A ... 710A Sizes 022A, 031A, 043A, 061ASizes 030A ... 710A
Size Accessories
,FB
n°d l
Ø min
030A 4 M24 65
042A 4 M27 70
060A 4 M30 85
085A 4 M33 90
125A 4 M36 110
180A 4 M39 120
250A 4 M42 130
355A 4 M45 140
500A 4 M52 160
710A 4 M56 180
≤ 085A
> 085A
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Installation 5
Class
8.8 10.9 12.9
ØM2< 70% Mn2
Washer must be always used
(300 HV min.)
M10 50 70 85
M12 85 120 145
M14 135 190 230
M16 210 300 355
M20 400 560 675
M22 530 770 895
M24 690 1000 1165
M27 1010 1400 1705
M30 1380 1950 2330
M33 2000 2800 3375
M36 2500 3550 4220
M39 2950 4200 4980
M42 4100 5800 6920
M45 5000 7100 8440
M52 7600 10700 12800
M56 9800 13800 16540
Tightening torque [N m]
Sizes 001A ... 021A Sizes 030A ... 710A
Size Design
(e.g. M... A...)
Accessories
(e.g. ,WF...)
n°d l
10.9 min
001A ... 002A 12 M10 30
003A ... 006A 12 M12* 40
009A ... 015A 12 M18 50
018A ... 021A 12 M20 60
Size Accessories
(e.g, WF... ,WT...)
n°d l
10.9 min
030A 12 M24 70
042A 16 M24 70
060A 12 M30 90
085A 16 M30 90
125A 18 M30 100
180A 28 M30 100
250A 36 M30 110
355A 44 M30 110
500A 44 M33 130
710A 48 M36 140
*) Class 12.9.
R S H
size output design n d l min output design n d l min output design n d l min
007 R30b 12 M12 50 S30b 16 M10 100 H30b 10 M16 60
015 R30c 10 M16 60 S30c 16 M12 130 H30c 12 M16 55
021 R30d 24 M16 65 S30d 16 M14 140 H30d 12 M20 70
030 R30e 24 M16 65 S30e 24 M16 160 H30e 24 M20 80
042 R30f 24 M20 70 S30f 28 M16 180 H30f 24 M20 70
060 R30g 24 M20 80 S30g 24 M20 220 H30g 24 M20 80
085 R30h 24 M20 80 S30h 28 M20 240 H30h 24 M30 110
125 R30i 24 M24 90 S30i 28 M24 240 H30i 28 M24 90
180 R30j 28 M24 90 S30j 32 M24 260 H30j 32 M24 90
250 R30k 28 M30 110 S30k 28 M30 300 H30k 28 M30 110
Tightening torque [N m]
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Sizes 001A ... 021A Sizes 030A ... 710A
Only for sizes sizes 022A, 031A, 043A
≤
>
For splined couplings apply proper lubricants.
To machine the driven shaft, please refer to the dimensions shown in ch. 4, catalog EP series.
Before mounting, pay attention to clean carefully mating surfaces.
In presence of external radial loads or torque required M2 ≥ 0,7 × MN2, apply locking adhesives.
Tighten the screws according to the values given in the table on previous page.
To machine the matching frame, please refer to the drawings below.
These sizes of gear reducers have two spigots. If the output shaft is not subject to radial load or if radial load is below 60% ma-
ximum allowed, the bigger spigot only may be used.
If elastic pins are present on the gear reducer ange, they must be used in the matching with a machine frame by a length equi-
valent to their diameter.
Installation 5
5.3
Flange mounting
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Installation 5
5.4
Gear reducer mounting with slewing outputs
In case of gear reducers with slewing outputs (output design R-S-H), in order to assure a correct running and an excellent power
transfer between gear reducer and machine, the gear reducer requires a rigid connection structure withstanding the radial loads.
The position and shape tolerances stated below are to be observed.
48 Rossi EPS Slewing Drives – Edition September 2017
Installation
To ensure proper functioning and optimum transfer of power between the gear reducer and the driven gear, the gear reducer requires a rigid
connection construction that is resistant to torsion. The form and position tolerances listed below must be met.
5.5
Foot mounting
Sizes 001A ... 021A Sizes 030A ... 710A
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Installation 5
5.6
Shaft mounting arrangements
When shaft mounted, the gear reducer must be supported
both axially and radially (also for mounting positions B5 …
B53 see ch. 6) by the shaft end of the driven machine as
well as anchored against rotation only by means of a reaction
having freedom of axial movement and su󰀩 cient clearance in
its couplings to permit minor oscillations – always in evidence
– without provoking dangerous overloads on the gear redu-
cer. It is recommended to use the torque arm symmetrically
to the gear reducer low speed shaft because, in this way, the
torque reaction is equally distributed on the two constraints
without loading the machine bearings. Foresee adeguate
elastic bushes and lubricate with proper products the hinges and the parts subject to sliding. Regarding the reaction system,
follow the instructions contained in the speci c technical documentation.
Attention! For vertical ceiling-type mounting and only for gear reducers equipped with locking rings or bush, gear
reducer support is due only to friction, for this reason it is advisable to provide it with a fastening system.
Whenever personal injury or property damage may occur, due to falling or projecting parts of the gear reducer or of its
parts, foresee adequate supplementary protection devices against:
• rotation or unthreading of the gear reducer from shaft end of driven machine following to accidental breakage of the
reaction arrangement
• accidental breakage of shaft end of driven machine
5.7
Torque arm
Size Lmin Gmin Smin Fmin
001A 325 10 15 20 3
002A 325 10 15 20 3
003A 375 13 15 20 4
004A 375 13 15 20 4
006A 375 13 15 20 4
009A 450 18 20 30 8
012A 450 18 20 30 8
015A 450 18 20 30 8
018A 550 23 25 35 16
021A 550 23 25 35 16
kg
Asymmetrical torque arm without spherical plain bearing (size 001÷021)
Torque arm can be applied indiscriminately to all H, M and Ndesigns. Symmetrical torque arm is provided as standard option
(,TA - up to size 085A); if you need a one sided torque arm, it must comply with the dimensions shown below.
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Installation 5
Size Lmin B A C R Gmin Smin S1 S2 X F F1 F2 L1 L2
030 600 655 360 835 55 28 30 2,15 25 22,2 47 58 54 285 354 28
042 700 762 420 972 62 33 35 2,15 28,5 24,2 62 65 54 340 412 43
060 800 862 455 1 089,5 62 33 35 2,15 28,5 24,2 62 65 54 365 447 56
085 900 968 520 1 228 68 38 40 2,65 32,5 27,7 68 71 62 425 510 77
125 1 000 1 075 585 1 367,5 75 41 45 2,65 36,5 30,7 75 78 67 470 572 113
180 1 100 1 190 645 1 512,5 90 45 50 3,15 39,2 43 90 93,5 82 520 633 145
250 1 250 1 355 730 1 720 105 55 60 4,15 50 44,2 105 109 95 585 718 235
355 1 400 1 520 830 1 935 120 60 65 4,15 55 49,2 120 124 108 665 810 315
500 1 550 1 680 910 2 135 130 65 70 4,15 60 54,2 130 134 120 730 890 410
710 1 700 1 850 1 000 2 350 150 75 80 4,15 67,5 59,2 150 155 135 810 977 562
kg
Asymmetrical torque arm with spherical plain bearing (size 030-710)
Hand Moutput designs can be considered with rigid shaft fastening.
Ttype outputs are to be considered less rigid as a consequence of splined shaft connection and mounting backlash.
Hand Moutputs are to be preferred only when following conditions are met:
• shaft mounting where gear reducer is supporting overhanging masses, e.g. EP+G+motor combined units and
eventual accessories on support base, and with high bending moments
• applications where you want to reduce the backlash value to a minimum
• in presence of heavy operating conditions, frequent reversals, dusty and particularly aggressive environments
• high reliability over the years
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Installation 5
Size m h c d e f a b k G G1 G2 W1 W2 Screw T1 T2 T Y
030 250 340 25 45 92,5 185 25 67,5 185 55 58 47 38 20 M18 10,9 - 8x 2,15 25 30 22,2
042 295 400 27,5 55 110 220 27,5 80 215 62 65 54 45 24 M22 10,9 - 8x 2,15 28,5 35 24,2
060 315 420 27,5 55 110 220 27,5 80 215 62 65 54 45 24 M22 10,9 - 8x 2,15 28,5 35 24,2
085 360 480 30 60 120 240 30 92,5 245 68 71 62 50 26 M24 10,9 - 8x 2,65 32,5 40 27,7
125 400 535 35 62,5 128,75 257,5 32,5 102,5 270 75 78 67 55 30 M27 10,9 - 8x 2,65 36,5 45 30,7
180 485 645 37,5 75 150 300 37,5 122,5 320 90 93,5 82 65 33 M30 10,9 - 8x 3,15 43 50 39,2
250 560 740 40 90 175 350 40 140 360 105 109 95 65 36 M33 10,9 - 8x 4,15 50 60 44,2
355 650 845 40 95 182,5 365 40 155 390 120 124 108 65 36 M33 10,9 - 8x 4,15 55 65 49,2
500 725 948,5 50 110 215 450 50 175 450 130 134 120 80 42 M39 10,9 - 8x 4,15 60 70 54,2
710 800 1050 52,5 125 240 480 55 195 500 150 155 135 85 45 M42 10,9 - 8x 4,15 67,5 80 59,2
Item Description
1Connection Rod
2Foot
3Screw UNI 5739
4Spherical plain bearing GE-UK-2RS
5Torque Arm
6Circlip DIN 7435
Asymmetrical torque arm foot
Here below are the recommended dimensions for the torque arm ground connection brackets.
Customized solutions on request.
20 UTD.175.09.2022.00_EN