SKF SMBM-X Series User manual

Version 01 2020
951-170-238-EN
ENFlow limiters of series
SMBM-X und SMBM-V
Assembly instructions
acc. to Machinery Directive 2006/42/EC

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951-170-238-EN
Version 01
EN EU Declaration of Incorporation
EC Declaration of Incorporation acc. to Machinery Directive 2006/42/EC, Appendix II Part 1 B
The manufacturer, SKF Lubrication Systems GmbH, Hockenheim Plant, 2. Industriestr. 4, DE - 68766 Hockenheim, hereby declares the conformity of the
partly completed machinery
Designation: Flow limiter
Type: SMBM-...
Item number: 5788-... without baseplate
6788-... Assembly with baseplate
Year of manufacture: See type plate
with the essential protection requirements of Machinery Directive 2006/42/EC at the time of placing on the market.
1.1.2 · 1.1.3 · 1.3.2 · 1.3.4 · 1.5.1 · 1.5.6· 1.5.8 · 1.5.9 · 1.6.1 · 1.7.1 · 1.7.3 · 1.7.4
The special technical documentation described in Annex VII, Part B of this Directive has been compiled.
We undertake to transmit, in response to a reasoned request by the national authorities, the special documents for this partly completed machine.
The Head of Technical Standards is the authorized representative for the technical documentation. See the manufacturer information for the address.
Furthermore, the following Directives and (harmonized) standards were applied in the applicable areas:
2011/65/EU RoHS II
2014/30/EU Electromagnetic Compatibility | Industry
Standard Edition Standard Edition Standard Edition Standard Edition
DIN EN ISO 12100 2011 DIN EN 60947-5-1 2010 DIN EN 61000-6-2 2006 DIN EN 61000-6-4 2011
DIN EN 809 2012 DIN EN 61131-2 2008 Correction 2011 DIN EN 60947-5-1 2010
DIN EN 60204-1 2007 Correction 2009 DIN EN 61000-6-3 2011
Correction 2010 DIN EN 60034-1 2015 Correction 2012
DIN EN 50581 2013 DIN EN 61000-6-1 2007
The partly completed machinery must not be put into service until it has been established that the machinery into which it is to be incorporated is in compli-
ance with the provisions of the Machinery Directive 2006/42/EC and all other applicable Directives.
Hockenheim, 8/18/2020
Jürgen Kreutzkämper
Manager R&D Germany - SKF Lubrication Business Unit
Stefan Schürmann
Manager R&D Hockenheim/Walldorf - SKF Lubrication Business Unit

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Masthead
Training
SKF conducts detailed training in order to
enable the maximum safety and efficiency.
SKF recommends taking advantage of this
training. For information, contact the rel-
evant SKF service address.
Copyright
© Copyright SKF
All rights reserved.
Warranty
The instructions do not contain any infor-
mation on the warranty. This can be found in
our General Terms and Conditions.
Disclaimer of liability
The manufacturer shall not be held liable for
damage resulting from:
○Improper usage,
assembly, operation, configuration,
maintenance, repair, or accidents
○Improper reaction to malfunctions
○Unauthorized modifications to the
product
○Intentional or gross negligence
○Use of non-original SKF spare parts
The maximum liability for loss or damage
resulting from the use of our products is
limited to the purchase price. Liability for
indirect damage of any kind is excluded.
Masthead
Manufacturer
SKF Lubrication Systems Germany GmbH
Address of manufacturer plants
Headquarters
Walldorf Plant
Heinrich-Hertz-Str. 2-8
69190 Walldorf
Germany
Tel: [phone]
Fax: [phone]
Berlin Plant
Motzener Straße 35/37
12277 Berlin
Germany
Tel. [phone]
Fax [phone]

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951-170-238-EN
Version 01
EN Table of contents
Table of contents
EC Declaration of Incorporation acc. to Machinery Directive 2006/42/EC,
Appendix II Part 1 B .................................................................................... 2
Masthead .................................................................................................... 3
Explanation of symbols and signs .............................................................. 8
1. Safety instructions ...................................................................... 10
1.1 General safety instructions ..................................................................10
1.2 General behavior when handling the product ...................................10
1.3 Intended use ..........................................................................................11
1.4 Foreseeable misuse ..............................................................................11
1.5 Painting plastic components ...............................................................12
1.6 Modifications to the product ................................................................12
1.7 Prohibition of certain activities ............................................................12
1.8 Inspections prior to delivery ................................................................12
1.9 Referenced documents ........................................................................12
1.10 Notes on the type plate ........................................................................13
1.11 Note on CE marking .............................................................................13
1.12 Persons authorized to use the product ..............................................14
1.12.1 Operator
14
1.12.2 Qualified mechanic
14
1.12.3 Qualified electrician
14
1.13 Instruction of outside fitters ................................................................14
1.14 Provision of personal protective gear .................................................14
1.15 Operation ...............................................................................................14
1.16 Emergency shutdown ..........................................................................14
1.17 Transport, assembly, maintenance, malfunction, repair,
shutdown, disposal ...............................................................................15
1.18 First start-up, daily start-up ...............................................................16
1.19 Cleaning .................................................................................................16
1.20 Residual risks ........................................................................................17

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Table of contents
2. Lubricants ................................................................................... 18
2.1 General information .............................................................................18
2.2 Selection of lubricants ..........................................................................18
2.3 Material compatibility ...........................................................................19
2.4 Aging of lubricants ................................................................................19
3. Overview, functional description ................................................ 20
3.1 Series SMBM-X (Single Flow) flow limiter versions .........................20
3.2 Series SMBM-V (Dual Flow) flow limiter versions ...........................22
3.3 Type designation of flow limiters of series SMBM- .......... .........24
3.4 Ordering a complete flow limiter assembly .......................................26
3.4.1 Order form for a complete flow limiter assembly .......................26
3.5 Application .............................................................................................27
3.6 Functional description of a flow limiter of series SMBM .................28
3.7 Example of a circulating-oil lubrication system with
flow limiter of series SMBM-X ............................................................31
3.8 Example of a circulating-oil lubrication system with
flow limiters of series SMBM-V ..........................................................32
4. Technical data ............................................................................. 34
4.1 General technical data SMBM .............................................................34
4.2 Piston detector 24-1884-2785 .........................................................35
4.3 Signal transmitter 24-1072-2124, without cable box ...................36
4.4 Pulse generator 2340-00000030 for gear-type flow indicator ...37
4.5 Electrical changeover valve 24-1254-2486 for separation
of starting and main oil flow................................................................38
4.6 Oil filter 24-0651-3041 ......................................................................38
4.7 Plug-in nozzle table SMBM-X ............................................................39
4.8 Plug-in nozzle table SMBM-V ............................................................40
4.9 Calculation of the resulting oil volumetric flow ................................41
4.9.1 Diagram for determination of the nozzle index ..........................41
4.9.2 Diagram for determination of the correction factor
for the volumetric flow of the oil ...................................................42
4.9.3 Example ...........................................................................................43
5. Delivery, returns, storage ........................................................... 44
5.1 Delivery ..................................................................................................44
5.2 Return shipment ...................................................................................44
5.3 Storage ...................................................................................................44

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6. Assembly ..................................................................................... 45
6.1 General information .............................................................................45
6.2 Minimum mounting dimensions.........................................................46
6.3 Assembly drawing SMBM-X ...............................................................47
6.3.1 Assembly drawing SMBM-X00 without
gear-type flow indicator, without signal transmitter ..................47
6.3.2 Assembly drawing SMBM-X31 with piston detector .................47
6.3.3 Assembly drawing SMBM-X21/X22 with signal transmitter ...48
6.3.4 Assembly drawing SMBM-X01/X02/ X03 with
gear-type flow indicator ................................................................48
6.3.5 Assembly drawing SMBM-X11/X12/X13 with
gear-type flow indicator and pulse generator ............................49
6.3.6 Assembly drawing SMBM-X41/X42/X43
SMBM-X51/X52/X53 Flow limiter with
with gear-type flow indicator and signal transmitter ................49
6.3.8 Assembly drawing SMBM-X61/X62/X63 Flow limiter with
gear-type flow indicator and piston detector ..............................50
6.3.7 Filter unit for flow limiter SMBM-X ..............................................50
6.3.9 Base plates for flow limiter SMBM-X ...........................................51
6.4 Assembly drawing SMBM-V ...............................................................53
6.4.1 Assembly drawing SMBM-V00 without
gear-type flow indicator, without signal transmitter ..................53
6.4.2 Assembly drawing SMBM-V31 with piston detector .................53
6.4.3 Assembly drawing SMBM-V21/X22 with signal transmitter ...54
6.4.4 Assembly drawing SMBM-V01/V02/V03 with
gear-type flow indicator, pulse generator ...................................54
6.4.5 Assembly drawing SMBM-V11/V12/V13 with
gear-type flow indicator, pulse generator ...................................55
6.4.6 Assembly drawing SMBM-V41/V42/V43
SMBM-V51/V52/V53 Flow limiter with
gear-type flow indicator and signal transmitter .........................55
6.4.7 Assembly drawing SMBM-V61/V62/V63 Flow limiter with
gear-type flow indicator and piston detector ..............................56
6.4.8 Filter unit for flow limiter SMBM-V ..............................................56
6.4.9 Changeover valve for flow limiter SMBM-V ................................57
6.4.10 Base plates for flow limiter SMBM-V ...........................................58
6.5 Assembling the flow limiters SMBM ..................................................60
6.6 Mechanical connection options SMBM .............................................62
6.7 Electrical connection of piston detector 24-1884-2785 ................63
6.8 Electrical connection of pulse generator 2340-00000030 ............64
6.9 Electrical connection of signal transmitter 24-1072-2124 ..........65
6.10 Electrical connection of changeover valve 24-1254-2486 ............67
6.11 Lubrication line connection ................................................................68
7. First start-up .............................................................................. 69
7.1 Inspections before first start-up .........................................................69
7.2 Inspections during first start-up.........................................................69
8. Operation .................................................................................... 70
8.1 Temporary shutdown ...........................................................................70
8.2 Permanent shutdown and disposal ....................................................70
8.3 Disposing of dismantled parts ............................................................70

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9. Cleaning ...................................................................................... 71
9.1 Cleaning agents.....................................................................................71
9.2 Exterior cleaning ...................................................................................71
9.3 Interior cleaning ....................................................................................71
9.4 Cleaning of the pulse generator ..........................................................71
10. Maintenance ............................................................................... 72
10.1 Maintenance for flow limiters ..............................................................72
10.2 Maintenance schedule .........................................................................72
10.3 Changing the plug-in nozzle SMBM ..................................................74
10.3.1 Changing the plug-in nozzle SMBM-X ........................................74
10.3.2 Changing the plug-in nozzle SMBM-V ........................................76
10.4 New mounting or replacement of a flow limiter module
while retaining the base plate module ..............................................78
10.4.1 New mounting with existing dummy module or
replacement of an SMBM-X module .........................................78
10.4.2 New mounting with existing dummy module or
replacement of an SMBM-V module .........................................80
10.4.3 Expansion of an existing flow limiter assembly to
include an SMBM module .............................................................82
11. Malfunctions, causes, and remedies ........................................... 86
11.1 Malfunctions at the flow limiter ..........................................................86
11.2 System malfunctions with effects on the flow limiter ......................87
12. Repairs ........................................................................................ 88
12.1 Replacement of signal transmitter 24-1072-2124 ........................89
12.2 Mounting or replacement of the pulse generator 2340-00000030 ....90
12.2.1 Subsequent mounting ..................................................................90
12.2.2 Pulse generator replacement ........................................................90
12.2.3 Run a function check ....................................................................91
13. Shutdown, disposal .................................................................... 92
13.1 Temporary shutdown ...........................................................................92
13.2 Permanent shutdown, disassembly ...................................................92
13.3 Disposal ..................................................................................................92
14. Spare parts ................................................................................. 93
15. Accessories ................................................................................. 97
15.1 Fitting tool for check valve 24-2104-2049 ......................................97
15.2 Cable boxes ............................................................................................97

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951-170-238-EN
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EN Explanation of symbols, signs, and abbreviations
Explanation of symbols and signs
General warning Risk of electrical shock Risk of slipping Hot surfaces
Being drawn into machinery Crushing hazard Pressure injection Suspended load
Electrostatic sensitive
components
Potentially explosive
atmosphere
Wear personal protective gear
(goggles)
Wear personal protective gear (face
mask)
Wear personal protective
gear (gloves)
Wear personal protective
gear (protective clothing)
Wear personal protective gear
(protective footwear) Unlock the product General notes Unauthorized persons must be kept away
CE marking Disposal, recycling Disposal of waste electrical
and electronic equipment
Warning level Consequence Probability Symbol Meaning
DANGER Death, serious injury Immediate •Chronological instructions
WARNING Death, serious injury Possible °Bullet list items
CAUTION Minor injury Possible Indicates the requirements that must be met for the ac-
tions described in the following
IMPORTANT NOTE Property damage Possible

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Explanation of symbols, signs, and abbreviations
Abbreviations and conversion factors
re: regarding °C degrees Celsius °F degrees Fahrenheit
approx. approximately K Kelvin oz. ounce
i.e. that is N Newton fl. oz. Fluid ounce
etc. et cetera h hour in. inch
poss. possibly s second psi pound per square inch
if necessary if necessary d day sq.in. square inch
usually usually Nm Newton meter cu. in. cubic inch
incl. including ml milliliter mph miles per hour
min. minimum ml/d milliliters per day RPM Revolutions per minute
max. maximum ccm cubic centimeter gal. gallon
Min. minute mm millimeter lb. kilopond
etc. et cetera l liter hp horsepower
e.g. for example db (A) sound pressure level kp kilopound
kW kilowatt > greater than fpsec feet per second
U voltage < less than Conversion factors
R Resistance ± plus minus Length 1 mm = 0.03937 in.
I current intensity Ø diameter Area 1 cm² = 0.155 sq.in.
V volt kg kilogram Volume 1 ml = 0.0352 fl.oz.
Wwatt RH relative humidity 1 l = 2.11416 pints (US)
AC alternating current ≈ approximately Ground 1 kg = 2.205 lbs
DC direct current = equal to 1 g = 0.03527 oz.
A ampere % percent Density 1 kg/cm³ = 8.3454 lb./gal(US)
Ah ampere hour ‰ per mil (thousandth) 1 kg/cm³ = 0.03613 lb./cu.in.
Hz Frequency (Hertz) ≥ greater or equal Force 1 N = 0.10197 kp
NC normally closed contact ≤ less or equal Pressure 1 bar = 14.5 psi
NO Make-contact (normally open) mm2square millimeter Temperature °C = (°F-32) x 5/9
rpm Revolutions per minute Power 1 kW = 1.34109 hp
Acceleration 1 m/s² = 3.28084 ft./s²
Speed 1 m/s = 3.28084 fpsec.
1 m/s = 2.23694 mph

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EN 1. Safety instructions
1. Safety instructions
1.1 General safety instructions
○The operator must ensure that the in-
structions are read by all persons tasked
with working on the product or who
supervise or instruct such persons. The
operator must also ensure that the staff
fully understands the content of the in-
structions. Putting the products into op-
eration or operating them without having
read the instructions is prohibited.
○Retain the instructions for further use.
○The products described here were
manufactured in accordance with current
state-of-the-art technology. Risks may,
however, arise from non-compliant us-
age and may result in personal injury or
damage to material assets.
○Any malfunctions which may affect safety
must be remedied immediately. In ad-
dition to these instructions, the statu-
tory regulations for accident prevention
and environmental protection must be
observed.
1.2 General behavior when handling the
product
○The product may only be used in aware-
ness of the potential dangers, in proper
technical condition, and according to the
information in this manual.
○Familiarize yourself with the functions
and operation of the product. The speci-
fied assembly and operating steps and
their sequences must be observed.
○Any unclear points regarding proper
condition or correct assembly/operation
must be clarified. Operation is prohibited
until issues have been clarified.
○Unauthorized persons must be kept
away.
○Wear personal protective gear.
○All safety regulations and in-house
instructions relevant to the particular
activity must be observed.
○Responsibilities for different activities
must be clearly defined and observed.
Uncertainty seriously endangers safety.
○Guards and safety devices must not be
removed, modified, nor disabled dur-
ing operation and must be checked for
proper function and completeness at
regular intervals.

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1. Safety instructions
1.3 Intended use
Feed lubricants only in compliance with the
specifications, technical data, and limits pre-
sented in this manual.
The data and values listed in the "Technical
data" chapter must be observed.
Usage is permitted exclusively in the context
of commercial or business activity by profes-
sional users.
1.4 Foreseeable misuse
Any usage of the product other than as
specified in this manual is strictly prohibited.
Particularly prohibited are:
○Use outside the specified operating tem-
perature range
○Use of non-specified equipment
○Use without a pressure relief valve
○Use in areas with aggressive, corrosive
substances (e.g., high ozone loads)
○Use in areas with damaging radiation
(e.g., ionizing radiation)
○Use to feed, forward, or store hazardous
substances and mixtures as defined in
Annex I Part 2-5 of the CLP Regulation
(EC 1272/2008) that are marked with
hazard pictograms GHS01-GHS06 and
GHS08.
○Use to feed / forward / store gases,
liquefied gases, dissolved gases, va-
pors, or fluids whose vapor pressure
exceeds normal atmospheric pressure
(1013 mbar) by more than 0.5 bar at
their maximum permissible operating
temperature
○Use in an explosion protection zone.
○If protective and safety mechanisms
must be removed, they must be rein-
stalled immediately following conclusion
of work and then inspected for proper
function.
○Any malfunctions that occur must be
resolved according to responsibility. The
supervisor must be notified immediately
in case of malfunctions outside one's in-
dividual scope of responsibility.
○Never use any part of the centralized
lubrication system as a stand or step or
for climbing.

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EN 1. Safety instructions
1.5 Painting plastic components
The painting of all plastic components and
seals of the products described here is
prohibited.
Completely remove or mask affected com-
ponents before painting the main machine.
1.6 Modifications to the product
Unauthorized modifications and changes
can have an unpredictable effect on safety.
Unauthorized modifications and changes
are therefore prohibited.
1.7 Prohibition of certain activities
The following activities must be performed
only by employees of the manufacturer or
1.8 Inspections prior to delivery
The following tests were performed prior to
delivery:
○Safety and functional tests
○For electrically operated products: Elec-
trical tests according to DIN EN 60204-
1:2007, VDE 0113-1:2007
1.9 Referenced documents
In addition to this manual, the following
documents must be observed by the re-
spective target group:
○Operational instructions, approval rules
○The safety data sheet of the lubricant
used
If applicable:
○Project planning documents
○Instructions from suppliers of purchased
parts
○Instructions for other components for
setting up the centralized lubrication
system
○Other relevant documents for integration
of the product into the main machine,
system
authorized persons due to possibly unde-
tectable sources of error or due to statutory
requirements:
○Repairs, modifications to the attach-
ments, e.g. sensors, etc.
○Repairs, modifications to the monitoring
equipment
○Replacement, modifications to the nozzle
and the pressure balance of the throttle
bushing

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1. Safety instructions
1.10 Notes on the type plate
The rating plate provides important data
such as the type designation, order number,
etc.
To avoid loss of this data in case the type
plate becomes illegible, these characteristics
should be entered in the manual.
SKF Lubrication Systems Germany GmbH
Made in Germany
Düse
1.11 Note on CE marking
The CE marking is based on the require-
ments of the applied Directives:
○2014/30/EU
Electromagnetic compatibility
○2011/65/EU
(RoHS II) Directive on the restriction of
the use of certain hazardous substances
in electrical and electronic equipment
Note on Low-Voltage Directive 2014/35/EU
The protection objectives of the Low-Volt-
age Directive 2014/35/EU are met in accor-
dance with Annex I, No. 1.5.1 of Machinery
Directive 2006/42/EC.
Note on Pressure Equipment Directive
2014/68/EU
Due to its performance characteristics, the
product does not reach the limit values
defined in Article 4, Paragraph 1, Subpara-
graph (a) item (i) and is, pursuant to Article
4, Paragraph 3, excluded from the scope of
Pressure Equipment Directive 2014/68/EU.
Part No._______________________________
Designation ___________________________
Serial number__________________________

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EN 1. Safety instructions
1.12 Persons authorized to use the
product
1.12.1 Operator
A person competent due to training, knowl-
edge, and experience to execute the func-
tions and activities associated with normal
operation. This also includes the avoidance
of possible hazards that may arise during
operation.
1.12.2 Qualified mechanic
A person with appropriate technical train-
ing, knowledge, and experience who can
recognize and avoid the hazards that may
occur during transport, assembly, first start-
up, operation, maintenance, repair, and
dismantling.
1.12.3 Qualified electrician
A person with appropriate technical training,
knowledge, and experience who can recog-
nize and avoid hazards that may result from
electricity.
1.13 Instruction of outside fitters
Before commencing work, the operator
must inform outside fitters of the opera-
tional safety regulations, applicable accident
prevention regulations, and the functions of
the main machine and its protective devices.
1.14 Provision of personal protective gear
The operator must provide personal protec-
tive gear appropriate for the location and
intended application.
1.15 Operation
The following must be observed during first
start-up and operation:
○All information within this manual and
all information within the referenced
documents
○All laws and regulations that the operator
must observe
1.16 Emergency shutdown
Shut down the product in an emergency by:
○Switching off the main machine in which
the product is integrated
○If necessary, pressing the on/off switch
on the main machine

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1. Safety instructions
1.17 Transport, assembly, maintenance, malfunction, repair, shutdown, disposal
limbs can be pinched by unintended
movements.
○Assemble the product only outside the
operating range of moving parts, at an
adequate distance from sources of heat
or cold. Other units of the machine, the
vehicle must not be damaged or impaired
in their function by the installation.
○Dry any wet, slippery surfaces or cover
appropriately.
○Cover hot or cold surfaces appropriately.
○Work on electrical components may be
performed only by qualified electricians.
Note possible waiting times for dis-
charge. Work on electrical components
may be performed only in a voltage-free
state and using tools suitable for electri-
cal work.
○Prior to the start of this work, all relevant
persons must be notified of it. Precau-
tionary operational measures, work
instructions must be observed.
○Transport only with suitable transport
and lifting gear on suitable paths.
○Maintenance and repair work can be
subject to restrictions at low or high tem-
peratures (e.g., altered flow properties
of the lubricant). Maintenance and repair
work should therefore preferably be per-
formed at room temperature.
○Prior to performing work, the product
and the machine in which the product
will be integrated must be de-energized,
depressurized, and secured against un-
authorized activation.
○Take appropriate measures to ensure
that moving, detached parts are im-
mobilized during the work and that no
○Establish the electrical connection only in
accordance with the valid circuit diagram
and in observance of the relevant regula-
tions and the local electrical operating
conditions.
○Do not touch cables or electrical compo-
nents with wet or moist hands.
○Drill required holes only on non-critical,
non-load-bearing parts. Use existing
boreholes. Do not damage lines or cables
when drilling.
○ Observe any possible wearing spots. Pro-
tect components appropriately.

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EN 1. Safety instructions
○All components used must be designed
for:
- The maximum operating pressure
- The maximum/minimum ambient tem-
perature
- The lubricant to be delivered.
○No parts may be subjected to torsion,
shearing, or bending.
○Check parts for contamination before use
and clean if necessary.
○Adhere to the specified torques. Use
a calibrated torque wrench when
tightening.
○Avoid mixing up or incorrectly assem-
bling disassembled parts. Label parts.
1.18 First start-up, daily start-up
Ensure that:
○All safety mechanisms are fully present
and functional
○All connections are properly connected
○All parts are correctly installed
1.19 Cleaning
○There is a fire hazard from the use of
flammable cleaning agents. Use only
non-flammable cleaning agents that are
suitable for the intended purpose.
○Do not use corrosive cleaning agents.
○Do not use steam-jet equipment or high-
pressure cleaners. This may damage
electrical components.
Observe the IP enclosure rating.
○Cleaning work must not be performed on
conducting components.
○Mark wet areas accordingly.

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1. Safety instructions
1.20 Residual risks
Residual risk Possible in
lifecycle Avoidance / Remedy
Personal injury / property damage due
to falling of hoisted parts A, B, C, G, H, K Unauthorized persons must be kept away; nobody is allowed to be present below hoisted parts. Lift parts using suitable and tested lifting gear.
Personal injury/property damage due
to tilting or falling product due to non-
compliance with specified torques
B, C, G
Adhere to the specified torques. Secure the product only to components with a sufficient load-
carrying capacity. If no torques are specified, use those specified for the screw size for screws
of strength class 8.8.
Personal injury / property damage due
to electric shock resulting from power
lead damage
B, C, D, E, F, G, H
Inspect power leads for damage prior to initial use and then at regular intervals. Do not install
the cable on moving parts or wearing spots. If this cannot be avoided, use anti-kink coils and/
or conduits.
Personal injury / property damage due
to spilled, leaked lubricant B, C, D, F, G, H, K
Be careful when filling the reservoir and then connecting or disconnecting the lubricant lines.
Use only hydraulic screw unions and lubrication lines suitable for the specified pressure. Do
not install lubrication lines on moving parts or wearing spots. If this cannot be avoided, use
flexible hose lines or anti-kink coils and/or conduits.
Lifecycles: A = Transport, B = Assembly, C = First start-up, D = Operation, E = Cleaning, F = Maintenance, G = Malfunction, repair,
H = Shutdown, K = Disposal

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EN 2. Lubricants
2. Lubricants
2.1 General information
Lubricants are used specially for specific
applications. To fulfill the task, lubricants
must meet various requirements to varying
degrees. The most important requirements
for lubricants are:
○Reduction in friction and wear
○Corrosion protection
○Noise reduction
○Protection against contamination/
ingress of foreign matter
○Cooling (primarily for oils)
○Durability (physical/chemical stability)
○Compatibility with as many materials as
possible
○Economic and environmental aspects
IMPORTANT NOTE
Safe operation of the flow limiters is en-
sured only when clean lubricating oil is
being supplied. The lubricating oil must
be free of air inclusions during its
conveyance.
2.2 Selection of lubricants
SKF Lubrication Systems considers lubri-
cants to be an element of system design.
The selection of a suitable lubricant should
reasonably be made during the design of
the machine and forms the basis for plan-
ning the centralized lubrication system.
The manufacturer/operator of the machine
should preferably make the selection with
the supplier of the lubricant on the basis of
the requirements profile of the specific task.
If you have no or little experience selecting
lubricants for centralized lubrication sys-
tems, please contact SKF.
We gladly assist our customers in the selec-
tion of suitable components for supplying
the selected lubricant and in the planning
and design of a centralized lubrication
system.
This will spare you potentially costly down-
time due to damage to the machine/system
and/or damage to the centralized lubrication
system.

2
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2. Lubricants
Only lubricants specified for the
product may be used (see "Tech-
nical data" chapter). Unsuitable
lubricants may lead to failure of the
product.
Do not mix lubricants. This can have
unpredictable effects on the usabil-
ity and this function of the central-
ized lubrication system.
Due to the large number of possible
additives, individual lubricants that
meet the required specifications ac-
cording to the manufacturer’s data
sheet are under some circumstances
not suitable for use in centralized
lubrication systems (e.g., incompat-
ibility between synthetic lubricants
and materials). To avoid this, always
use lubricants that have been tested
by SKF.
2.3 Material compatibility
The lubricants must generally be compatible
with the following materials:
○Steel, gray cast iron, brass, copper,
aluminum
○NBR, FKM (FPM), ABS, PA, PU
2.4 Aging of lubricants
In case of extended machine downtime,
check before putting back into operation
that the lubricant is still suitable for use in
terms of chemical and physical signs of ag-
ing. We recommend performing this inspec-
tion after one week of machine downtime.
In case of doubt regarding the suitability of
the lubricant, replace it before re-commis-
sioning and, if necessary, perform an initial
lubrication manually.
It is possible for lubricants to be tested in
the company's laboratory for their pump-
ability in centralized lubrication systems
(e.g., "bleeding").
Please contact SKF if you have further
questions regarding lubricants.
An overview of the lubricants we have
tested is available on request.

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3. Overview, functional description
3.1 Series SMBM-X (Single Flow) flow limiter versions
Inlet section
Fig. 1 Overview flow limiters SMBM-X
Filter with shutoff valve
SMBM-X00 SMBM-X31 SMBM-X21/X22 SMBM-X01/02/03 SMBM-X11/12/13 SMBM-X61/X62/X63 SMBM-X41/42/43 SMBM-X51/52/53