FAG Failure Diagnosis: Guide to troubleshooting wheel bearing
Contents
1. For hydraulic and mechanical extractors They facilitate the dismounting of bearings tightly fitting inner rings and other parts Its load carrying capacity and extraction force generation are precisely synchronised The SPIDER extraction hooks are attached right behind the extractor tie bolts and allow for evenly applied extraction forces This prevents deformation or tilting of even the most tightly fitting parts The high extraction forces are solely applied to e g the bearing inner ring Normally bearing and shaft remain intact and can be re used The field proven extractors can be mounted with little effort behind the bearing PULLER TRISECTIONS50 Part no 400 6176 10 PULLER TRISECTION100 Part no 400 6177 10 Cylindrical bearing seats meant to fit tightly on the shaft must be heated prior to moun ting Sufficient thermal expansion is achie ved at 80 to 100 C Temperature must not under no circumstances exceed 120 C to make sure that the material structure and hardness characteristics do not change The FAG heating plate HEATER PLATE with controlled temperature can be used to heat rolling bearings Cover the bearing with a metal sheet and turn it regularly to ensure the bearing is uniformly heated Alongside rolling bearings max 120 C the heating plates are also suitable to heat labyrinth shrink and seal rings HEATER PLATE Part no 400 6179 10 Many rolling bearings a2. The FAG heat and oil resistant gloves are particularly well suited for the handling of rolling bearings or other parts heated and lubricated prior to mounting or dismounting Their outstanding properties derive from a multiple layer structure made of different fibres Special characteristics e Resistant to temperatures up to 250 C e Not flammable e Heat resistant even when wet e Admitted for protection against mechanical DIN EN 388 and thermal DIN EN 407 influences e Cotton free e Cut resistant HANDSCHUH2 Part no 400 6181 10 Feeler gauges are used to measure the radial bearing clearance especially when mounted on tapered shaft seats and adap ter and extracting sleeves FEELER GAUGE100 Part no 400 6182 10 FEELER GAUGE300 Part no 400 6183 10 Mounting Paste Anti Corrosion Oil This mounting and multiple purpose paste has proven especially valuable for the mounting of rolling bearings It facilitates the mounting of bearing rings and prevents stick slip scoring marks wear and fretting corrosion In addition the mounting paste protects the bearing against corrosion It is pale in colour and does not soil The mounting paste is applied ina thin layer so that the metallic lustre turns slightly dull The admissible operating temperature ranges between 30 C and 150 C The paste is resistant to water steam and a variety of alkaline and acid agents Produc
3. Passenger Cars Introduction 8 0 Content Introduction 2 5 Failure Diagnosis 6 9 Mounting Instructions 10 15 Mounting Tools by FAG 16 27 Rolling bearing damage Causes of failure Wheel bearings are designed to achieve a mileage of at least 1 000 000 km without a problem However a rolling bearing can be damaged by unusual causes which has a detrimental effect on its service life e 70 of failures are due to poor lubrica tion too little or excessive lubrication inappropriate lubricant etc e 18 are caused by contamination intru sion of fluids or solids This shows the importance of an effective sealing as a damaged seal will allow lubricant to leak and contaminants to intrude e 10 are due to incorrect fitting bearing forced into position excessive heat wrong adjustment and incorrect play tapered sleeve overtightened etc General types of rolling bearing damage e Overheating e Fracture of the outer ring e Tipping e Tight fitting e Fatigue e Rolling body indentations e Contamination by dirt e Incorrect lubrication e Corrosion e Lip fracture e Scoring effect damage e Wrong load direction General remarks Diagnosing wheel bearing failures Rolling bearings are machine elements found in a wide range of applications They work reliably even under the most challen ging conditions and premature failure is very rare The first sign of rolling bearing damage is typical
4. Phone 49 0 1801 753 333 Fax 49 0 6103 753 297 FAG AS Schaeffler com www LuK AS com 4 6 ct Min aus dem deutschen Festnetz
5. Torque down the fixing nut of the wheel bearing with the tightening torque specified by the manufacturer The correct tightening torque of the nut is important not only to ensure the wheel is securely fitted it also ensures that the wheel bearing is running with optimal play It is strongly recommended to use a torque wrench to make sure the correct tightening torque is applied Note You must not tilt the wheel bearing during assembly neither in the locating bore nor on the wheel hub as this can entail severe damage to the wheel bearing Wheel bearings with factory fitted seals are already lubricated They do not require additional lubrication and must not be cleaned using solvents Using solvents can cause the bearing to fail prematurely 11 Mounting Instructions Installation and Adjustment of Tapered Roller Bearings in Motor Vehicle Wheel Hubs Note Disassembling and mounting tapered roller bearings can be different from one manufacturer to another In general you should always adhere to the instructions given by the vehicle manufacturer Passenger car mountings with adjusted tapered roller bearings non driven axle 1 Clean wheel hub body 2 Slightly oil outer ring seating positions arrows Use a plunger 2 to press in both outer rings 1 and 3 Important The plunger must be positioned on the outer ring face side only Ensure flush mounting of the outer ring with the housing shoulders 12 Mounti
6. 400 6118 10 ABZIEHER54 100 Part no 400 6119 10 ABZIEHER54 200 Part no 400 6120 10 ABZIEHER54 300 Part no 400 6121 10 ABZIEHER54 400 Part no 400 6122 10 ABZIEHER54 500 Part no 400 6123 10 Mounting Tools by FAG 19 20 Mounting Tools by FAG Mechanical Extractors e For the dismounting of complete rolling bearings or tightly fitting inner rings e Span 85 640 mm depth 65 300 mm ABZIEHER52 085 Part no 400 6126 10 ABZIEHER52 130 Part no 400 6127 10 ABZIEHER 52 230 Part no 400 6128 10 ABZIEHER52 295 Part no 400 6129 10 e Used together with mechanical extractors to loosen tightly fitting parts e The tool considerably facilitates bearing extraction as it provides axial forces of 80 or 150 kN the larger tool has a hydraulic return mechanism ABZIEHER 44 080 Part no 400 6130 10 ABZIEHER 44 150 Part no 400 6131 10 e For dismounting complete radial ball bearings e For tightly fitting outer ring e For bearing without radial access e Three kits with different sets of claws available ABZIEHER56 020 SET Part no 400 6132 10 ABZIEHER56 120 SET Part no 400 6133 10 ABZIEHER56 220 SET Part no 400 6134 10 Mounting Tools by FAG Mechanical Extractors e For radial bearings deep groove ball e For all types of rolling bearings For the e For deep groove ball bearings and bearings self aligning ball bearings dismounting of com
7. retail stores ARCA GREASE GUN HOSE Part no 400 6192 10 Temperature Measuring Devices Digital Hand Tachometer Mounting Tools by FAG Sonar Device The FAG infrared thermometer TempCheck PLUS measures the infrared radiation emit ted by an object and uses this to calculate the surface temperature The contact free process allows for the temperature measurement of objects which are difficult to reach or that are moving The device is very light it only weighs 150g and can therefore be taken practically anywhere it is needed The FAG infrared thermometer TempCheck PLUS covers a measuring range of 32 C to 530 C It can be used for thermal monitoring of machine components Summary of the advantages of the TempCheck PLUS e Quick and precise temperature measurement e State of the art infrared measurement technology e Easy to handle e Reduction of unplanned down time periods e Low purchase cost TEMP CHECK PLUS Part no 400 6186 10 Contains measuring device with battery strap user manual and carrying case The tachometer provides for two operation modes e Direct speed measurement with adapter track wheel and measuring tips e Contact free optical measurement using a reflecting mark Direct speed measurement Plug on the adapter supplied with the mea suring device Through contact with the component the rubber tip measures the rotational spee
8. rotate easily without seizing No tilting clearance must be noticeable on the rim If required replace shock washer or nut If available use measuring device to check the axial play of the bearing 15 Remount the cover 16 Perform a test run to check whether the mounting play has changed Re adjust the bearing if required 15 Mounting Tools by FAG Socket Wrench for Mounting 16 Mounting Tool Kit The FAG mounting tool kit allows for a cost effective and safe mounting of rolling bea rings with bore diameters of up to 50mm It can also be used to fit sleeves interme diate rings seals and similar parts Use a suitable mounting sleeve and hit with a hammer to drive tightly fitting inner rings onto the shaft or outer rings into the hou sing bore Using a mounting sleeve helps to prevent mounting forces being transferred via the rolling bodies and raceways which could damage the parts severely The FITTING TOOL ALU SET10 50 comprises mounting sleeves made from aluminium and mounting rings made from plastic The tools are easy to handle and available at low cost FITTING TOOL ALU SET10 50 Part no 400 6001 10 Contents of FITTING TOOL ALU SET10 50 33 mounting rings for bore diameters of 10 50 mm and outer diameters of up to 110 mm 3 mounting sleeves Nonrecoil hammer 1kg Suitcase dimensions 440 350 95mm Overall weight of the set 4 5 kg Components also available as in
9. tion of the steering knuckle Introduction In general observe the following The wheel bearing emits loud noises rattling after being fitted and put into operation Wheel bearings with little mileage emit noise 500 3 000 km Excessive heat generation during starting phase One ofthe inner rings is damaged 1 The wheel hub is off centre because it was too tightly fitted 2 The inner ring was tilted during mount ing on the wheel hub wrong tool used wedge or sleeve between the pressure plunger and bearing ring abutment area not parallel 3 Excessive oval deformation of the loca ting bore reduces the radial play of the wheel bearing in the narrow areas of the ovally deformed locating bore 4 Locating bore in steering knuckle damaged 5 Deep scores and indents on both the wheel hub and wheel bearing caused by wrong dismounting technique Medium oval deformation of steering knuckle locating bore limits the wheel bearing radial play and causes the afore mentioned damage 1 Too little axial play of the wheel bearing between wheel hub and steering knuckle Incorrect adjustment and or mounting of the components 2 Resulting from incorrect mounting of the wheel bearing into the locating bore the Snap rings are missing in the locating bore causing gradual axial misalignment of the wheel bearing and the hub The rotating hub rubs against the fixed wheel bearing seat This generates high fr
10. 6 10 FAG designation 173556 and former 173557 The sets include four or five double hook wrenches The remaining items in the case are identicalto the kit LOCKNUT DOUBLEHOOK KM5 8 SET Part no 400 6096 10 LOCKNUT DOUBLEHOOK KM9 13 SET Part no 400 6097 10 former FAG designation DHN5 to DHN13 Double hook wrenches are also available individually Each double hook wrench is engraved with the torsion angles for the self aligning ball bearings to be mounted using this particular wrench so that the sliding distance and reduction in radial clearance can be precisely set LOCKNUT DOUBLEHOOK KM13 Part no 400 6115 10 Mechanical Extractors Mechanical extractors are used to dismount small rolling bearings with bore diameters of up to 100 mm that are tightly fitted on the shaft or in the housing The bearing can be dismounted gently if the extractor grips onto the tightly fitted bearing ring With mechanical FAG extractors the dis mounting force is generally applied via threaded spindles Alongside two arm three arm and four arm devices and a hydraulic pressure device FAG also offers special extractors e Allow for the dismounting of complete rolling bearings with tightly fitted inner rings and other parts such as ring gears e Span 80 350mm depth 100 250mm available in a set stand with 6 extrac tors or as individual extractors ABZIEHER54 SET Part no
11. art no 400 6149 10 21 Mounting Tools by FAG Se Mechanical Extractors Hydraulic Extractors e For standard deep groove ball bearings Compact extractors generating dismounting forces of up to 80KN The set consisting of six sets of extract Supplied with safety net in a sturdy case ing jaws and two threaded spindles can be used on bore diameters of 10 100mm e For tightly fitting outer ring e No dismounting of the shaft required PULLER INTERNAL SET10 100 Ordering designation Span Lift Part no 400 6155 10 Extractor mm mm PULLER INTERNAL ARM A1 Part no 400 6156 10 PULLER INTERNAL ARM A2 400 6166 10 40 150 152 55 4 5 Part no 400 6157 10 400 6167 10 JAW PULLER INTERNAL ARM A3 400 6168 10 60 200 152 190 82 4 9 Part no 400 6158 10 400 6169 10 XL PULLER INTERNAL ARM A4 400 6170 10 JAW Part no 400 6159 10 400 6171 10 Long JAW PULLER INTERNAL ARM A5 400 6172 10 80 250 1000229 5 82 6 6 Part no 400 6160 10 400 6173 10 XL PULLER INTERNAL ARM A6 400 6174 10 JAW Part no 400 6161 10 400 6175 10 Long JAW PULLER INTERNAL SPINDEL M12 Part no 400 6162 10 optionally with longer extracting arms spare parts available individually PULLER INTERNAL SPINDEL M16 Part no 400 6163 10 PULLER INTERNAL SUITCASE Part no 400 6164 10 PULLER INTERNAL INLAY Part no 400 6165 10 22 Three Section Extraction Plate Electrical Heating Plate Mounting Tools by FAG Induction Heating Device
12. ck spreads evenly in circumferential direction often in con junction with fractured pieces e With axial loads these fractions normally occur a little beyond the middle of the raceway e The outer ring external surface displays an irregular wear pattern e improve the mounting of the bearing e Ensure correct bearing play e Adhere to the fitting instructions of the manufacturer e Bent shafts e Burrs and dirt on the shaft or housing shoulders e Shaft threads not located axially parallel to the bearing seat e Shaft nuts with end faces not matching the thread axle e Wear marks running angularly to the raceway edges of the standing ring e Examine shafts and housing for run outs at the shoulders and bearing seats e Machine the thread and bearing seat using a clamp e Use precise shaft nuts Failure Diagnosis Fit too tight Fatigue Rolling body indentations e Use of wrong bearing possibly inner e Circumferential running marks on e Static overload of the bearing the raceways e Continuous operation under heavy load poor lubrication and insufficient bearing play cause premature wear and fatigue e Correct the setting of the bearing play and or of the wheel bearing design is not matched to the appli cation not perceptible from the outside e The so called flaking is caused by frac tures in the running surface and conti nued abrasion of small particles from th
13. coloured rolling bodies blue brown and rolling body running marks e Excessive wear of the rolling bodies ring members and cages are caused by overheating and total failure of the lubrication e Use correct lubricant in the right amount e Check preload to reduce bearing temperature e Bearings have been exposed to corrosive fluids or environments e Faulty seals or inappropriate lubricant e Red brownish discolouration or deposits on rolling bodies raceways and cage e Increased vibrations followed by extensive wear e Increased radial play or loss of preload e Avoid use of corrosive fluids in the bearing s vicinity e Use appropriate lubricant with required specifications Lip fractures e Axial load exceeds admissible limits lip insufficiently supported e Axial shock load e Incorrect mounting dismounting e Supporting lips are partially or completely broken off or fractured e Keep load within admissible limits e Observe mounting instructions and procedures Scoring damage N RN TE SER sod by at A YE Fa Ed he Sa e Bearing poorly lubricated and put under heavy load e Amount or consistence of lubricant inadequate e Lack of hydrodynamic lubricant film between roller face area and lip e Excessive preload due to thermal expansion e Off set position of the rollers caused by worn raceway or tilted ring e Partial or large area welding and deep scratches in the lips and
14. d or the tracking wheel the surface speed TACHOMETER Part no 400 6184 10 contains Digital hand tachometer adapter for direct 1 1 measurement tracking wheel 1 10 mm tracking wheel 6in rubber tip 10 reflecting marks user manual carrying case Contact free speed measurement Apply a reflecting mark on the machine component to be measured This mark is detected by photoelectric means using visible red light The device displays the revolutions per minute TACHOMETER REFLEX MARKS Part no 400 6185 10 Contains 10 reflecting marks The sonar device allows for the quick easy and reliable control ofrolling bearing noise Changes in noise caused by wear pitting formation or distortion of the bearing can thus be detected at an early stage if inspection is carried out regularly This helps to avoid unexpected interruptions in operation and more serious machine damage The device works like a doctor s stethoscope The tips of the earpiece are placed in the ear channels to provide insulation against back ground noise The insulating grip is held like a pencil between thumb and index finger and the sensing tip is placed firmly on the part to be measured If a noise is heard the sensor is moved until the noise reaches its maximum volume SOUND CHECK Part no 400 6187 10 27 g9 d0 9007 6 0 S ZEgt o 0001 S56 dg gt iS SS SRR gt gt DER PSs SSS 5 gt gt gSSSS SS gt gt
15. dividual parts and Disassembling For locknuts KMo to KM2o The socket wren ches FAG LOCKNUT SOCKET allow for a simple tightening and loosening of locknut on shafts adapter and extraction sleeves They require less space on the locknut cir cumference than hook wrenches and ena ble ratchets and torque wrenches to be used For increased work safety socket wrenches should be secured using a locking pin or rubber washer FAG socket wrenches therefore have a bore to apply the locking pin and a groove to attach the rubber washer Locking pin and rubber washer are included with the socket wrench Ordering example for an FAG socket wrench suitable for locknut KM5 LOCKNUT SOCKET KM5 Part no 400 6063 10 Mounting Tools by FAG Hook and Pin Wrenches for Mounting and Disassembling For locknuts KMo to KM4o and precision nuts ZMo6 to ZM150 and ZMA15 33 to ZMA 100 140 The FAG flexible head hook wrenches of the LOCKNUT FLEXI HOOK series allow for the tightening and loosening of locknuts preci sion nuts on shafts and adapter and extrac tor sleeves if no torque is specified The flexible head hook wrench of the series LOCKNUT FLEXI HOOK allows for the mount ing and dismounting of locknuts with diffe rent diameters Ordering example for an FAG flexible head hook wrench suitable for locknuts KM14 to KM24 LOCKNUT FLEXI HOOK KM14 24 Part no 400 6089 10 For precision lock
16. e inner and outer ring or the rolling bodies e Flaking does not stop but will once started spread further due to continu ous operation e s always accompanied by noticeable increase of noise emissions e Replace the bearing e Heavy impacts on the bearing e Use of a hammer during mounting e Bearing or assembled units have been dropped prior to installation e The bearing has been fitted onto the shaft by applying force on the outer ring e Indentations on the raceways caused by the rolling bodies lead to intensified bearing vibration noise e Advanced indentation can lead to premature failure of the bearing e Use appropriate tool to mount and dismount the bearing e Always apply force only to the ring with fixed seating Failure Diagnosis Contamination Incorrect lubrication e Unsettled dust dirt or abrasive substances from dirty work stations e Dirty hands or tools e Foreign additives in lubricants or detergents e Indentation on rolling bodies and raceways cause vibrations e Clean work stations tools objects and hands reduce contamination risk e No grinding in the vicinity of the bearing mounting station e Keep bearing in the sealed original packaging until fitting it e Seal bearing mounting station against dirty environment e Cover open mounted bearings when interrupting repair work Corrosion e Insufficient lubrication e Excessive temperatures e Dis
17. fying knocks Introduction 8 0 General remarks Causes of bearing damages and corrective measures Wheel bearings are among the critical com ponents of a motor vehicle They make a major contribution to safe and comfortable vehicle handling Wheel bearings are subject to a wide variety of stress factors such as high wheel speeds hard knocks resulting from bumpy roads dispersed dirt particles and extreme temperatures These may impair the functioning of the wheel bearing causing the bearing to fail or seize under unfavourable conditions A seized wheel bearing while driving can lead to dangerous situations and or accidents Failure diagnosis Oval deformation of the wheel bearing 1 Dismount the wheel bearing from the locating bore 2 Check the surface of the wheel bearing outer ring for two dark spots located op posite each other Examine whether the two areas located at 90 of the spots are not damaged If this is the case the loca ting bore is deformed and the steering knuckle must be replaced 3 Disassemble the wheel bearing to make sure the ball raceways of the outer ring are not polished First remove the seal e g using special pliers then dismount the assembly consisting of outer and in ner ring cage and balls 4 Clean the raceways of the outer ring and check for craters corresponding to the dark spots on the outer ring outside These craters confirm the oval deforma
18. iction causing the temperature to rise in the wheel bearing environment The grease burns and the bearing fails Replace wheel bearing and hub Replace complete wheel bearing Replace steering knuckle and wheel bearing Remove minor defects on the wheel hub e g by polishing or replace wheel hub and bearing Remove minor defects on the wheel hub e g by polishing or replace wheel hub and bearing Replace steering knuckle and wheel bearing Check the settings of the steering knuckle and wheel hub and re adjust if required Dismount wheel bearing and make sure that the snap rings are mounted replace wheel bearing if required Failure Diagnosis Overheating Fracture of the outer ring Tipping e Extreme heat from an external source e Insufficient heat dissipation e Insufficient cooling or lubrication e Discolouration of rings rolling bodies and cages with colours ranging from yellow to blue e Temperatures exceeding 200 C detrimentally affect the hardness and resistance of the material and can cause the bearing to fail e In extreme cases the bearing compo nents will be distorted e High temperatures can deteriorate or destroy the lubricant e Temperature or overload monitoring e Sufficient heat dissipation e Poor support of the rings in the bearing housing e Axial preload due to incorrect bearing play at high operating temperatures e Typically the cra
19. ly an unusual operating behaviour of the bearing The inspection of faulty bearings reveal a wide and varied range of damages Exami nation of the bearings alone is generally not enough to pinpoint the cause of damage but rather the inspection of the ambient parts the lubrication and sealing as well as the operating and environmental condi tions An examination procedure facilitates the determination of the failure cause Unusual operating behaviour as signs of damage Gradual deterioration of the operating be haviour is typically the first sign of bearing damage Spontaneous damage caused for example by fitting errors or lack of lubrica tion and resulting in immediate failure rarely occurs Depending on the operating conditions a few minutes or under some circumstances even a few months may pass from the time damage begins to the moment the bearing actually fails Introduction Uneven running Unusual running noise e Squealing or whistling sound e Rumbling or irregular noise e Gradual change in running noise Damaged ring members or rolling bodies Contamination Excessive bearing play Insufficient bearing play Excessive bearing play Damaged rolling contact surface Contamination Inappropriate lubricant Temperature induced change in bearing play Damaged raceway Increased wheel wobble Increased tilting clearance Vibration in the steering system Intensifying vibrations Intensi
20. nd other rotationally symmetric steel parts are tightly fitted on the shaft Especially larger parts can be fitted much easier if they are heated prior to mounting The quick and clean process of induction heating is Superior to the traditional methods and is therefore particularly well suited for the use in volume mounting Induction heating can be used on complete bearings rings of cylindrical roller bearings or needle bearings and rotationally symmetric steel parts such as labyrinth rings roll couplings wraps etc Advantages e Fast energy saving working e Suitable for rolling bearings and other ring shaped steel parts e Advanced safety e Environmentally friendly oil free e Uniform controlled heating e Simple handling e Automatic demagnetisation e Improved efficiency as the best suitable size can be selected for every application HEATER10 Part no 400 6178 10 23 24 Mounting Tools by FAG Gloves Feeler Gauges The FAG heat insulated gloves are particu larly well suited for the handling of rolling bearings or other parts heated prior to mounting or dismounting The outside material is hard wearing poly ester heat resistant to temperatures up to 150 C The inside material is non irritant cotton Special characteristics e Resistant to temperatures up to 150 C e Lint free e Non asbestos e Comfortable e Cut resistant HANDSCHUH1 Part no 400 6180 10
21. ng Instructions 3 Lubricate the inner ring of the inner bearing generously Important Squeeze lubricant also between cage inner ring and rollers arrows 4 Mount inner ring into the hub 5 Mount shaft seal ring into the hub Important Sealing lip must face the bearing 6 Apply protective cover 4 and intermediate ring 2 on steering knuckle Important The protective cover must fit tightly on the entire circumference of the steering knuckle application point arrows 13 Mounting Instructions a Installation and Adjustment of Tapered Roller Bearings in Motor Vehicle Wheel Hubs 7 Position wheel hub on steering knuckle Important Make sure not to damage the shaft seal ring 8 Lubricate the inner ring of the outer bearing generously Important Squeeze lubricant also between cage inner ring and rollers arrows g Position inner ring of the outer bearing on steering knuckle 10 Position shock washer 1 11 Bolt on slotted castle nut 2 12 Torque down castle nut while rotating the wheel hub until a rotating resistance is noticeable Important Use torque wrench and observe the manufacturer s repair instructions 14 Mounting Instructions 13 Loosen castle nut for not more than 1 12 of a revolution until in line with the next split pin hole and secure with a cotter pin 14 Check for mounting and tilting clearance Note The wheel bearing must
22. nuts AM15 to AMgo The FAG flexible head pin wrenches of the LOCKNUT FLEXI PIN series allow for the tightening and loosening of precision nuts on shafts if no torque is specified Using FAG flexible head pin wrenches allows for the mounting of small bearings onto tapered shaft seats The bearings are tightened via radially arranged holes Ordering example for an FAG flexible head pin wrench suitable for locknuts AM35 to AM6o LOCKNUT FLEXI PIN AM35 60 Part no 400 6094 10 For precision locknuts LNPo17 to LNP170 The FAG flexible head face pin wrenches of the LOCKNUT FACE PIN series allow for the tightening and loosening of precision nuts on shafts if no torque is specified Using FAG flexible head face pin wrenches allows for the mounting of small bearings onto tapered shaft seats The bearings are tightened via axially arranged holes Ordering example for an FAG flexible head face pin wrench suitable for locknuts LNPo17 to LPNo2s LOCKNUT FACE PIN LNP17 25 Part no 400 6079 10 18 Mounting Tools by FAG Hook and Pin Wrenches for Mounting and Disassembling This service kit includes a service case con taining a double hook wrench a torque wrench and a user manual The torque wrench allows for the precise definition of the initial mounting position at a defined tightening torque LOCKNUT DOUBLEHOOK KMs KIT Part no 400 6107 10 LOCKNUT DOUBLEHOOK KM13 KIT Part no 400 610
23. plete rolling bearings angular contact ball bearings The inter cylindrical tapered and self aligning or tightly fitting inner rings The extract nal extractor set includes nine extractors roller bearings indicate bearing ing and separating devices are available and can be used on bearing holes with manufacturer in 5 different sizes with spans of up to diameters of 5 7omm e For tightly fitting inner and or outer ring 210mm e For tightly fitting outer ring e Especially suitable when the bearing e The inner ring hole must be freely ABZIEHER64 400 inner ring is adjacent to a shoulder on accessible Part no 400 6135 10 the shaft without extraction slots Good ABZIEHER64 500 radial access to the bearing location is ABZIEHER62 SET Part no 400 6136 10 required Part no 400 6140 10 ABZIEHER64 600 ABZIEHER62 100 005 Part no 400 6137 10 ABZIEHER49 100 060 Part no 400 6141 10 ABZIEHER64 700 Part no 400 6150 10 ABZIEHER62 100 007 Part no 400 6138 10 ABZIEHER49 100 075 Part no 400 6142 10 ABZIEHER64A 64B 64C 64D Part no 400 6151 10 ABZIEHER62 100 010 Part no 400 6139 10 ABZIEHER49 200 115 Part no 400 6143 10 Part no 400 6152 10 ABZIEHER62 100 014 ABZIEHER49 300 150 Part no 400 6144 10 Part no 400 6153 10 ABZIEHER62 100 020 ABZIEHER49 400 210 Part no 400 6145 10 Part no 400 6154 10 ABZIEHER62 100 030 Part no 400 6146 10 ABZIEHER62 200 040 Part no 400 6147 10 ABZIEHER62 200 050 Part no 400 6148 10 ABZIEHER62 200 060 P
24. r ball and roller bearings used in rolling mills construction machines motor vehicles splining and grinding spindles which are subject to increased speeds high loads high and low temperatures Extremely suitable Suitable Very suitable Very suitable Very suitable Very suitable Very suitable Suitable Extremely suitable Part no 1kg 400 6188 10 5 kg 400 6189 10 10 kg 400 6190 10 Grease Gun Under challenging operating conditions or in harsh environments rolling bearings often require re lubrication via grease nipples This work can be performed easily cleanly and quickly using the FAG grease gun with attached armoured hose All parts comply with DIN 1283 Grease Gun Reservoir diameter 56 mm overall length of the gun 390mm delivery capacity 2 cm stroke pressure max 800 bar The gun is filled with either bulk grease or a cartridge according to DIN 1284 e Reservoir capacity for bulk grease 500 cm e 400g cartridge as per DIN 1284 diame ter 53 5 mm length 235mm connection thread GB i weight approx 1 5 kg ARCA GREASE GUN Part no 400 6191 10 Armoured Hose Length 300mm connection thread GB i equipped with hydraulic grip coupling for tapered lubrication nipples according to DIN 71412 Instead of the hydraulic grip coupling sliding couplings for button head lubricating nipples according to DIN 3404 or other nozzles can be used These connec tors are available in specialist
25. roller face areas e Lubricant coking in this area e Use appropriate lubricant with required specifications e Ensure correct bearing preload Failure Diagnosis Wrong load direction e Angular contact ball bearings are designed to support loads from just one direction e f load is applied in reverse direction the elliptic contact area is cut off by the low shoulder e This results in very high loads and temperatures followed by intensifying vibrations and premature failing e The balls show a strapped groove wear pattern caused by the balls rotating over the raceway edge e Ensure the correct fitting of the angular contact ball bearing Mounting Instructions Mounting of the Wheel Bearing into the Steering Knuckle First the complete wheel bearing unit is mounted into the locating bore of the steering knuckle as described below 1 Mount the wheel bearing into the locating bore of the steering knuckle 4 by exerting pressure to the bearing s outer ring only Pressure is exerted via a shim 1 with recess 2 enabling the pressure force F to be uniformly transferred to the outer ring The steering knuckle rests on the base plate 3 of the press 2 Mount the wheel bearing into the locating bore of the steering knuckle 5 by applying force to the bearing s outer ring In order to do so the steering knuckle flange side must be located centrally on the support sleeve 3 arrow The bearing is pressed in
26. t range 70g tube 2508 tube 400g Cartridge 1kg can ARCA MOUNTINGPASTE 70G Part no 400 6194 10 ARCA MOUNTINGPASTE 250G 10 Part no 400 6195 10 The anti corrosion oil is particularly well suited for unpacked rolling bearings But it can also be applied to bare metal surfaces of equipment machines and machine com ponents stored indoors to provide long term protection against corrosion Normally it is not necessary to wash anti corrosion oil out of rolling bearings as the oil behaves neutrally towards all conventio nal rolling bearing greases and oils It can easily and reliably be removed using alka line solvents or neutral cleaning agents Product range 0 4l spray can with ozone safe propellant 02 ARCA ANTICORROSIONOIL 400G 12 Part no 400 6193 10 Mounting Tools by FAG 25 Mounting Tools by FAG Rolling Bearing Greases 1 5 kg and 10 kg Containers DIN 51825 Thickener Base oil Base oil viscosity at 40 C Consistence NLGI class Operating temperature C Max long term operation temperature C Typical fields of application Low temperatures High temperatures Low friction High speeds High loads Low speeds Vibration Support for seals Re lubrication ARCA GREASE MULTITOP 1KG ARCA GREASE MULTITOP 5KG ARCA GREASE MULTITOP 10KG KPSN 40 Lithium soap with EP additives Mineral oil ester 85 mm s 2 40 to 150 80 Universal grease fo
27. to the knuckle in precise alignment by means of a pressure shim 1 with recess 2 4 press base plate F pressure force 3 Finally use special pliers to mount a snap ring on the groove in the steering knuckle to secure the wheel bearing in axial direction 4 When mounting the wheel bearing into the locating bore the bevel on one side of the bearing is to be observed This bevel must be oriented in mounting direction as to avoid tilting of the bearing when pressed into the bore Important Under no circumstances must the pressure force F be transferred to the balls in the bearing as this would cause indentations in the raceways and damage the bearing 10 Mounting Instructions OOOO Mounting of the Wheel Hub 1 Place the wheel hub 4 on the base plate 3 of a press The in the steering knuckle 5 pre assembled wheel bearing is pressed onto the hub using a mounting sleeve Important The sleeve must be positioned only on the face side of the inner ring 1 pressure shim F pressure force Note On some vehicles the parts are mounted in reverse order The steering knuckle rests on the base plate while the wheel hub is pressed in from above 1 wheel hub 2 steering knuckle 3 mounting sleeve 4 base plate Important Do not forget to apply the support sleeve It supports the inner ring when pressed in and thus prevents grooving of the ball raceways of the bearing outer ring 2
Download Pdf Manuals
Related Search