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 |  موضوع: كتاب SKF Bearing Maintenance Handbook الخميس 07 مارس 2024, 2:17 am | |
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SKF Bearing Maintenance Handbook
و المحتوى كما يلي :
1 Basics 8
2 Mounting rolling bearings . 44
3 Mounting bearing units . 92
4 Mounting bearing housings 122
5 Installing seals . 140
6 Alignment . 158
7 Lubrication 178
8 Inspection . 216
9 Troubleshooting 228
10 Dismounting . 252
11 Bearing damage and their causes . 288
12 Maintenance support . 324
13 Appendices 332
14 Index . 438
Index
ptitude Exchange See SKF ptitude Exchange
A
abrasive paper 226
abrasive wear 2983299
caused by incorrect fits 3003301
caused by ineffective lubrication 313
caused by ineffective sealing 3143315
abutments
accuracy requirements 35336, 386
dimensions 38
trouble conditions 237, 251
acrylic rubber 201
acrylonitrile-butadiene rubbers
designation suffixes for bearings 24325
designation suffixes for seals 145
adapter sleeve locking 94395
dismounting bearing units 274
mounting bearing units 1093110
tightening torque values 103
adapter sleeves
dismounting bearings 2603264
dismounting flanged housings 282
mounting bearings (oil injection method) 62366
mounting bearings (SKF Drive-up Method) 57361
additives
compatibility with materials 1883189, 202, 207, 210
in centralized lubrication systems 212
in grease 184
in oil 203
adhesive wear 2983299
caused by incorrect fits 301
caused by ineffective lubrication 312
adjustable steel levellers See SKF Vibracon SM elements
adjusted bearing arrangements 31
axial location 37338
adjusting bearings
angular contact ball bearings 74377
tapered roller bearings 84388
troubleshooting 245
alignment 1583177
of belts 1763177
of machines 1613166
of offset drives 175
of shafts 1673174
SKF equipment 419
allen keys See hexagonal keys
aluminium heating rings
for dismounting bearings 255, 2583259
for mounting bearings 69, 81
ambient temperature
considerations for machine alignment 161
considerations for relubrication 1953196
angled foot See soft foot
angular contact ball bearings
adjusting back-to-back arrangements 76377
adjusting face-to-face arrangements 74375
axial internal clearance values 389
axial preload values 389
greasing on initial installation 191
mounting 74378
stand-alone bearings 74
trouble conditions 243, 245, 247
types and designs 12313
universally matchable bearings 76
with a two-piece inner ring 78
anti-foaming additive 203
anti-fretting agent 49
anti-oxidant additive
in grease 184
in oil 203
anti-rust additive
in grease 184
in oil 203
anti-wear additive
in grease 184
in oil 203, 207
assembling ball bearing units 121
asset management 3263329
asset reliability 3263329
associated components
checking the accuracy 47349
dimensions for ducts, grooves and holes 405
greasing on initial installation 188
preparations 49
attachment bolts/nuts
compensating for soft foot 162
for bearing units 101, 105
for housings 131
automatic lubrication 197
automatic lubricators See SKF SYSTEM 24
automatic particle counting method 212
auxiliary lips
greasing on initial installation 149, 190
seal types and designs 1433145
axial displacement 30331
considerations for fit selection 34
for CARB toroidal roller bearings 91
in plummer block housings 132
measuring axial drive-up 56357
values for SKF Drive-up Method 4063413
axial drive-up
measuring axial displacement 56
measuring clearance reduction 55
troubleshooting 240
values for CARB toroidal roller bearings 404
values for self-aligning ball bearings 402
values for spherical roller bearings 403
axial internal clearance 29, 51
trouble conditions 248
values for angular contact ball bearings 3893391
values for cylindrical roller bearings 3943395
values for tapered roller bearings 396
43814
axial load
induced loads 241, 2433244, 301, 320
path patterns 2943295
axial location 37338
in plummer block housings 132
B
back-to-back bearing arrangements
adjusting angular contact ball bearings 76377
adjusting tapered roller bearings 86388
ball bearing units
assembly 121
designations 96, 100
dismounting 2723275
mounting 1043114
shaft locking methods 94396
types and designs 963100
base frame See machine base frame
base oil
compatibility 2003201
in grease 183
in oil 203
viscosity 185
base-bound 167, 175
basic rating life 27
bearing arrangements
in plummer block housings 127, 132
terminology 11
types 30331
bearing damage 2883323
causes 2303231, 298
ISO classification 298
operational 3093322
pre-operational 3003308
symptoms 2323235
bearing failure See bearing damage
bearing housings See housings
bearing life
rating life 27328
service life 28329
bearing location 31338
bearing seats
accuracy requirements 35336, 386
bearing damage 3023303
checking the accuracy 47349
dimensions for relieved fillets 387
surface roughness 36, 387
bearing units
designations 96, 100
dismounting 2703277
identification 27
mounting 923121
shaft locking methods 94396
storage 41
types and designs 963100
bearings
defect frequencies 224
designation system 22325
dismounting 2543269
greasing on initial installation 1893191
handling 49350
identification 26327
inspection 2253226
mounting 44391
relubrication 1943198
size categories 46
storage 41, 230
terminology 10
types and designs 12321
belt alignment 1763177
bolt tensioners 166
bolt-bound 167, 175
brass
compatibility with EP additives 202
for machinery shims 163
C
calcium soap 185
calibrated cones
for belt alignment 176
for shaft alignment 170
cap bolts 131
CARB toroidal roller bearings
abutment dimensions 38
axial drive-up values 404
axial location 37
clearance reduction values 404
greasing on initial installation 191
in plummer block housings 132
lock nut tightening angles 404
mounting 90391
mounting (oil injection method) 62366
mounting (SKF Drive-up Method) 57361
radial internal clearance values 3993400
SKF Drive-up Method values 4123413
trouble conditions 240
types and designs 17
cardan shaft alignment See offset drive alignment
cast iron
bearing unit housings 100
housings 126
cast steel 126
castle nuts 88
centralized lubrication systems 2133215
centring flanges 84385
chain oils 209
for SKF SYSTEM 24 lubricators 199
chocking See shimming
chocks 164
churning
caused by excess grease 190, 199
caused by vibration 194
resulting in lubricant leakage 222
troubleshooting 236
CircOil See SKF CircOil
circulating oil 208
in centralized lubrication systems 2133215
mounting SONL housings 1373139
oil change interval 209
taking oil samples 210
cleaning
bearings 226
seals 146
cleanliness 28329, 46347
clearance See internal clearance
clearance reduction 54355
values for CARB toroidal roller bearings 404
values for spherical roller bearings 403
Client Needs Analysis See SKF Client Needs Analysis
cold mounting 53367
compatibility
between base oils 201
between thickeners 201
grease 2003202
oil 210
complex soaps 183
composite material See polyamide
compressed air 226
ConCentra See SKF ConCentra
condition monitoring 2163224
lubrication 222
noise 221
SKF instruments 4323434
temperature 221
conditions of rotation 32
consistency 185
grease performance test 188
consistency grade See NLGI grade
contact seals
external seals 39
integral bearing seals 40
removal 2843286
trouble conditions 238
439Index
contamination
bearing damage progression 231
contaminants 2113212
ISO classification 212
relubrication interval adjustment 195
resulting in abrasive wear 3143315
resulting in indentations 316
troubleshooting 2453246, 2493250
continuous relubrication 195, 197
copper corrosion test 188
corrective maintenance See reactive maintenance
corrosion 2983299
frictional corrosion 3023303, 308, 319
moisture corrosion 308, 3173318
corrosion protection test 188
cracking 2983299
crackle test 211
cracks
caused by defective seats 303
caused by incorrect fits 3003301
microcracks 3093312
craters 3213322
creep 31
caused by incorrect fits 3003301
considerations for fit selection 33
troubleshooting 243, 2463247
cross holes 150, 152
cross-location See adjusted bearing arrangements
current leakage 2983299
caused by passage of electric current 3213322
cylindrical collar locking 94395
mounting bearing units 1193120
tightening torque values 102
cylindrical roller bearings
axial internal clearance values 3943395
axial location 37
dismounting 2583259
greasing on initial installation 191
mounting 80384
radial internal clearance values 393
types and designs 13314
cylindrical shaft seats
dismounting bearings 2563259
form and position accuracy 386
measurement form 48
mounting bearings 53
cylindricity 36, 386
D
deep groove ball bearings
greasing on initial installation 191
integral bearing seals 40
radial internal clearance values 388
types and designs 12
defect frequencies 224
dents See indentations
designations
for bearing units 963100
for bearings 22325
for housings 1253129
for seals 1433145
dial indicator methods
for adjusting angular contact ball bearings 74377
for adjusting tapered roller bearings 86388
for shaft alignment 1703171
for SKF Drive-up Method 58361
dial indicators 56
diameter series 22323
direction of load indeterminate 32
dismounting bearing units 2703277
preparations 271
tools 270
with an adapter sleeve 274
with an eccentric locking collar 273
with grub screw locking 272
with SKF ConCentra locking 2753277
dismounting bearings 2543269
from a cylindrical shaft seat 2563259
from a solid housing 2673269
from a tapered shaft seat 2593260
methods 255
preparations 254
tools 255, 4353436
using heat 2583259, 269
when bearing damage is present 291
with a withdrawal sleeve 2643267
with an adapter sleeve 2603264
dismounting fluid 254
dismounting housings 2783283
flanged housings 2823283
preparations 278
split plummer blocks 2803281
dismounting seals See removing seals
distance rings 134
double row angular contact ball bearings
axial internal clearance values 390
designs 12
mounting 78
double row tapered roller bearings
designs 17
mounting 89
double-lip seals
grease replenishment 196
greasing on initial installation 149, 190
drift punches
for installing seals 148
for mounting bearing units 1073108
drive-up See axial drive-up
drive-up method See SKF Drive-up Method
dropping point 185
grease performance test 188
dry lubricant 1823183
Duoflex See SKF Duoflex
Duralife See SKF Duralife
Duralip See SKF Duralip
DURATEMP 145
E
eccentric collar locking 94395
dismounting bearing units 273
mounting bearing units 1063108
tightening torque values 102
elastomer seals
installation 1403157
storage 42
electric current
current leakage damage 3213322
excessive voltage damage 307
trouble conditions 2493250
electric hot plates 68
electrical erosion 2983299
current leakage 3213322
excessive voltage 307
electronic stethoscopes 221
EMCOR rating See SKF EMCOR rating
end covers 133
endoscopes 2253226
energy efficiency 329
enveloped acceleration 224
EP additives See extreme pressure additives
Epocast 36 165
epoxy resin
for machine alignment 165
for shaft repair 152
escape holes See grease escape holes
external seals 39
trouble conditions 238
extractors See pullers
extreme pressure additives
compatibility with materials 202, 207
in grease 184
in oil 203, 207
extreme temperature applications 182
44014
F
face alignment 1763177
face-to-face bearing arrangements
adjusting angular contact ball bearings 74375
adjusting tapered roller bearings 84385
failure analysis See bearing damage
failure modes 2983299
false brinelling 2983299
caused by incorrect transportation or storage 308
caused by vibration 319
fatigue 2983299
subsurface initiated 301, 3033304
surface initiated 301, 3033304, 3103311
fatigue fracture 2983299
caused by operational misalignment 319
faults See machine faults
feeler gauges
for belt alignment 176
for checking soft foot 162
for measuring clearance reduction 55
for measuring internal clearance 52
for shaft alignment 170
felt seals 238
field service contracts 330
fillets
dimensions 38
dimensions (relieved fillets) 387
trouble conditions 247
filter rating 212
fits
bearing damage 3003302
for housings 3363337
for shafts 3343336
resultant fits 3383381
selection 32334
trouble conditions 2413242, 246
FKM See fluoro elastomer
flanged housings
dismounting 2823283
types and designs 1253126
flanged units 100
dismounting 2703277
mounting 1043120
types and designs 963100
flourinated grease 189, 200, 202
fluoro elastomer
at high temperatures 142
designation suffix for seals 145
fluting
caused by electric current 322
caused by vibration 319
foam dam 165
foaming
causes 211
prevention 202
food compatible lubricants 209, 424
forced fracture 2983299
caused by defective seats 303
caused by incorrect fits 301
form accuracy 35336
tolerances for bearing seats 386
tolerances for shafts (sleeve mounting) 384
foundation quality 161
four-lip seals
grease replenishment 196
greasing on initial installation 190
four-point contact ball bearings
axial internal clearance values 391
designs 13
mounting 78
trouble conditions 244
four-row cylindrical roller bearings
designs 14
mounting 82384
four-row tapered roller bearings
designs 17
mounting 89
fracture 2983299
fatigue fracture 319
forced fracture 301, 303
thermal cracking 301
FRB rings See locating rings
fretting corrosion 2983299
caused by defective seats 3023303
caused by incorrect fits 300
grease performance test 188
removal 226
frictional corrosion 2983299
false brinelling 308, 319
fretting corrosion 2983299, 3023303
frictional moment 235
G
garter springs
seal types and designs 1433145
trouble conditions 237
gloves 73
graphite 182, 184
grease
ageing 187, 192, 195
analysis 222
comparison with oil 182, 214
compatibility 2003202
consistency 185, 188
datasheets 181, 1843188
function 184
operating temperature range 1863187
performance tests 188
properties 1853188
selection 189
selection chart (SKF greases) 4303431
SKF greases 4233431
stiffness 184, 187
grease escape holes 196, 199
grease fittings
for grease replenishment 195
position on plummer block housings 133, 196
grease leakage 182
grease performance tests 188
troubleshooting 202, 236, 2383239
grease lubrication 1833202
Grease Test Kit See SKF Grease Test Kit
groove alignment 1763177
grub screw locking 94395
dismounting bearing units 272
mounting bearing units 1043106
tightening torque values 102
guide rods 81
guiding sleeves See mounting sleeves
H
hammers
for installing seals 146
for mounting bearings 49
handling
bearing damage 3053306, 308
bearings 49350
lubricants 181
heat
condition monitoring 221
troubleshooting 233
heater mats 269
heating cabinets 70
heating panels 71
heating rings See aluminium heating rings
hexagonal keys 102
high-precision bearings
greasing on initial installation 191
types and designs 12, 18
HMV.. nuts See hydraulic nuts
HNBR See acrylonitrile-butadiene rubbers
hollow shafts 34335
hook spanners 1023103
hot dismounting See dismounting bearings, using heat
hot mounting 68371
441Index
housings
dismounting 2783283
greasing on initial installation 190
identification 27
mounting 1223139
terminology 11
types and designs 1253127
hubs See wheel hubs
humidity
when storing bearings and units 41
when storing elastomer seals 42
when storing lubricants 43
hydraulic nuts
for dismounting bearings 262, 266
for SKF Drive-up Method 56, 4063413
series and designs 73
hydraulic pumps
for SKF Drive-up Method 56
selection guide 72
hydraulically-assisted pullers 257, 260
HYDROCAM 166
I
imbalance 223
impact damage
caused by faulty mounting practices 248, 305
caused by incorrect transportation or storage 308
impact rings/sleeves 146
incompatibility See compatibility
indentations 2983299
bearing damage progression 211, 231
caused by faulty mounting practices 3053306
caused by ineffective sealing 316
troubleshooting 245, 248
induced loads 301, 320
troubleshooting 241, 2433244
induction heaters
for dismounting bearings 255, 259
for installing wear sleeves 152
for mounting bearings 69, 82
infrared radiators 70
initial clearance 29
inner ring expansion 56
insert bearings See Y-bearings
inspection 2163227
during operation 2203224
during shutdown 2243227
lubricants 181
installing seals 1403157
greasing on initial installation 190
in plummer block housings 1333139
trouble conditions 2383239
integral seals
for bearing units 96
for bearings 40
trouble conditions 2373238, 251
integrated maintenance solutions 329
internal bearing pullers 268
internal clearance
before and after mounting 29, 51
considerations for fit selection 33
initial 29, 51
measuring with a feeler gauge 52
operational 29
reduction values when mounting 4033404
residual values after mounting 4033404
troubleshooting 233, 234, 2393242
values prior to mounting 3883401
ISO
bearing damage classification 298
contamination classification 212
dimension series 22323
tolerance classes 35
tolerance grades 385
viscosity grades 203, 415
K
keyways 150, 152
kiln bearings 182
kinematic viscosity See viscosity
L
labyrinth seals 39
grease replenishment 196
greasing on initial installation 190
installation in plummer block housings 136
trouble conditions 238
large diameter wear sleeves 225
installation 1523153
laser alignment methods
for belt alignment 1763177
for offset drive alignment 175
for shaft alignment 1713173
leaks 222
troubleshooting 236, 2383239, 245
life See bearing life
lifting tackle 50, 68
liquid contaminants 212
troubleshooting 246, 250
lithium soap 185
load distributions
considerations for fit selection 32
path patterns 2923297
load ratios 187
load zones 2923297
locating bearing arrangements 30331
locating rings 132
lock nut tightening angle 55
values for CARB toroidal roller bearings 404
values for self-aligning ball bearings 402
values for spherical roller bearings 403
looseness 163, 220
LuBase 189, 207
LubeSelect 189, 192, 207
lubricant
disposal 181
handling 181
inspection 181, 222, 225
selection 182
service life 28
shelf life 43
storage 42
lubricant film
formation 204
load carrying capacity 184, 200
lubrication 1783215
management 180
SKF tools and products 4203422
trouble conditions 2363237
lubrication systems
centralized 2133215
oil 2073209
LubriLean See SKF LubriLean
M
machine alignment 1613166
machine base frame
casting epoxy resin 165
soft foot condition 162
Machine Condition Advisor See SKF Machine Condition Advisor
machine faults 222
machine installation 1613166
machine tools
lubrication 191, 215
SKF services 331
machinery shims 1633164
for adjusting angular contact ball bearings 74375
for adjusting tapered roller bearings 85
for bearing units 101
for plummer block housings 130
in the TMAS series 164
to prevent axial preloading 244
trouble conditions 241
maintenance methodologies 2183219
44214
maintenance strategy review 3283330
maintenance support 3243331
mandrels 146
matched bearing sets 76
material fatigue See subsurface initiated fatigue
material safety datasheets 180
interpretation 1843188
measurement form 48
mechanical maintenance services 330
mechanical pullers 256, 260
mechanical stability 188
metal-to-metal contact
prevention 183, 202
resulting in adhesive wear 312
troubleshooting 2333234, 237, 246, 249
microcracks 299
caused by ineffective lubrication 310
caused by material fatigue 309
micrometers 47349
microscope counting method 212
mineral oil
in grease 183, 189
in oil 2033204
minimal quantity lubrication 2143215
misalignment
bearing damage 304, 320
in ball bearing units with an adapter sleeve 110
in ball bearing units with an eccentric locking collar 106, 108
in ball bearing units with grub screw locking 104, 106
in roller bearing units with a cylindrical locking collar 119
in SKF ConCentra ball bearing units 112, 114
in SKF ConCentra roller bearing units 116, 118
of belts 1763177
of external seals 238
of offset drives 175
of shafts 1673169
path patterns 2963297
vibration frequencies 2223223
mixing greases See grease, compatibility
moisture corrosion 2983299
caused by incorrect transportation or storage 308
caused by ineffective sealing 3173318
troubleshooting 250
molybdenum disulphide
for mounting bearings 62
in grease 183
Monoflex See SKF Monoflex
mounting bearing units 923121
preparations 101
replacement parts 943100
tightening torque values 1023103
tools 1023103
with a cylindrical locking collar 1193120
with an adapter sleeve 1093110
with an eccentric locking collar 1063108
with grub screw locking 1043106
with SKF ConCentra locking 1113118
mounting bearings 44391
faulty mounting practices 2483249, 3053306
instructions by bearing type 74391
preparations 46349
tools 72373, 4163418
trouble conditions 240, 243, 245, 247
using mechanical methods 53356
using the oil injection method 62366
using SensorMount 67
using the SKF Drive-up Method 57361
mounting housings 1223139
plummer blocks 1343136
plummer blocks (SONL) 1373139
preparations 130
replacement parts 1243129
mounting sleeves
for installing seals 150
for mounting cylindrical roller bearings 81384
movable machine 1673169
Multiflex See SKF Multiflex
multi-row tapered roller bearings See four-row tapered roller
bearings
N
natural oil
in grease 183
in oil 203
NBR See acrylonitrile-butadiene rubbers
needle roller bearings
dismounting 255, 258
mounting 80381
radial internal clearance values 393
types and designs 15316
NLGI grade 184
grease performance test 188
noise
condition monitoring 221
troubleshooting 233
non-contact seals
external seals 39
integral bearing seals 40
removal 284
non-locating bearing arrangements 30331
non-separable bearings 190
non-soaps 183
O
offset drive alignment 175
oil
analysis 2103212
comparison with grease 182, 214
compatibility 201, 210
filtering 2113212
sampling 210
selection 2033207
viscosity 2033206
oil bath 208
for heating bearings 71
oil change interval 209
oil sampling 210
trouble conditions 2363237
oil bleeding 181, 184, 187
grease performance test 188
relubrication interval adjustment 205
oil change intervals 209
oil injection method
dimensions for ducts, grooves and holes 405
for dismounting a bearing from a solid housing 268
for dismounting a bearing on a cylindrical shaft seat 258
for dismounting a bearing on a tapered shaft seat 260
for dismounting a bearing on a withdrawal sleeve 266
for dismounting a bearing on an adapter sleeve 264
for mounting bearings 62366
oil injectors 72
oil jet 208
oil change interval 209
oil leakage 182
troubleshooting 236
oil level gauge 137, 139
oil lubrication 2033212
oil lubrication systems 2073209
oil pick-up ring 2073208
in SONL housings 1373139
oil change interval 209
oil pressure
calculation for SKF Drive-up Method 58
values for SKF Drive-up Method 4063413
oil separation See oil bleeding
oil spot See oil-air
oil-air 2073208
SKF Oil+Air 215
one-piece plummer block housings 126
on-site machining 330
443Index
operating temperature
condition monitoring 221
of bearings 187, 204
of grease 1863187
relubrication interval adjustment 195
troubleshooting 190, 202, 233
operational clearance 29
operator driven reliability 219, 330
O-rings 39
oscillating applications 207
outer ring rotation
load conditions 32
path patterns 293
relubrication interval adjustment 195
wheel application 87388
out-of-balance See unbalance
out-of-round 241
caused by defective seats 3023303
path patterns 2963297
troubleshooting 241
out-of-square
caused by defective seats 302
caused by static misalignment 304
troubleshooting 251
oval clamping See out-of-round
overheating 233
overload 2983299
caused by faulty mounting practices 305
caused by incorrect transportation or storage 308
over-rolling 231
bearing defect frequencies 224
oxidation
of grease 187
prevention 81, 185, 203
resulting in corrosion 299
oxidized lubricant 226, 254
P
paint
on support surfaces 130, 161, 165
seal protection 150
particle counting 212
path patterns 2913297
perpendicularity 36, 386
pick-up ring See oil pick-up ring
pillow block See plummer block
pinching See out-of-round
plastic deformation 2983299
indentations 3053306, 316
overload 305, 308
plugs See end covers
plummer block housings
dismounting 2803281
mounting SNL housings 1343136
mounting SONL housings 1373139
types and designs 1253126
plummer block units
dismounting 2703277
mounting 1043120
types and designs 963100
polishing wear
caused by incorrect fits 3003301
caused by ineffective sealing 315
polyamide
bearing unit housings 100
compatibility with EP additives 202
polyurea 183
predictive maintenance 2183219
preload
operational 29, 51
troubleshooting 2403245
values for angular contact ball bearings 389
premature bearing failure See bearing damage
preservatives
compatibility 189, 202
removal from new bearings 47, 202
pressed steel 100
presses
for dismounting bearings 258, 267
for installing seals 146
for mounting bearings 53
pressure gauges 56
preventive maintenance 2183219
proactive reliability maintenance 219
ProFlex See SKF ProFlex
PTFE
at high temperatures 142
compatibility 202
designation suffix for seals 145
radial shaft seals 143, 146, 150
pullers
for dismounting a bearing from a solid housing 2673269
for dismounting a bearing on a cylindrical shaft seat 2563257
for dismounting a bearing on a tapered shaft seat 260
for dismounting flanged housings 282
pulley alignment See belt alignment
pulling plates 260
pumps
for SKF Drive-up Method 56
selection guide 72
purging
during relubrication 196
during renewal 199
trouble conditions 239
R
radial bearings 12317
radial internal clearance 29, 51
measuring with a feeler gauge 52
reduction values when mounting 4033404
residual values after mounting 4033404
values for angular contact ball bearings 3893390
values for CARB toroidal roller bearings 3993400
values for cylindrical roller bearings 393
values for deep groove ball bearings 388
values for four-point contact ball bearings 391
values for needle roller bearings 393
values for self-aligning ball bearings 392
values for spherical roller bearings 3973398
values for Y-bearings 401
radial location 31336
trouble conditions 2413242, 246
radial shaft seals
cleaning 146
installation into a housing 1463149
installation over a shaft 150
replacement 151
types and designs 1433145
radiators See infrared radiators
rating life 27328
reactive maintenance 2183219
recommended fits See fits
reference temperature 203
refurbishment 331
reheat furnaces 182
reliability engineering 327
relieved fillets 38
dimensions 387
relubrication 1923198
effect on temperature 221
of sealed bearings 90, 192
relubrication intervals 1923195
troubleshooting 236, 2453246
remanufacturing 331
removing seals 2843286
renewal 1983199
replacement parts
for bearing units 943100
for housings 1243129
for seals 1423145
replenishment 1953196
44414
resultant fits
for housings (inch) 3723381
for housings (metric) 3503359
for shafts (inch) 3603371
for shafts (metric) 3383349
retaining rings 91
reverse rim method 1703171
rim-face method 1703171
ring creep See creep
ring gauges 47
RMI See SKF Reliability Maintenance Institute
roll neck bearings 259
roll stability 188
roller bearing units
designations 96, 100
dismounting 2763277
mounting 1143120
shaft locking methods 94396
types and designs 963100
rolling bearings See bearings
rotating load 32
troubleshooting 243
rotating outer ring
load conditions 32
path patterns 293
relubrication interval adjustment 195
wheel application 87388
rotational centre 167
rubbing 233
running accuracy 35336
tolerances for bearing seats 386
tolerances for shafts (sleeve mounting) 384
running-in 191
runout 36
tolerances for bearing seats 386
rust
caused by defective seats 302
caused by ineffective sealing 3173318
troubleshooting 246
rust inhibiting preservative 188
compatibility with greases 189, 202
removal 202
S
safety datasheets See material safety datasheets
salt water 185
seal counterface 142
inspection 2263227
repair 1513154
requirements 146
seal lips
made of PTFE 146
materials 145
orientation 146, 239
types and designs 1433145
sealants
for installing seals 148, 152
to prevent oil leakage 137
sealed bearings 40
deep groove ball bearings 40
heating 68
relubrication 192
self-aligning ball bearings 79
shelf life 41
spherical roller bearings 90
trouble conditions 238
washing 189
sealing arrangements 39340
trouble conditions 238
sealing washers 156
seals
external seals 39
for bearing units 96
for housings 1283129
installation 1403157
integral bearing seals 40
radial shaft seals 1433145
removal 2843286
service life 28
shelf life 42
terminology 11
trouble conditions 233, 235
seats See bearing seats
self-aligning ball bearings
axial drive-up values 402
greasing on initial installation 191
lock nut tightening angles 402
mounting 79380
mounting (oil injection method) 62366
mounting (SKF Drive-up Method) 57361
radial internal clearance values 392
SKF Drive-up Method values 392
types and designs 13
SensorMount 67
separable bearings
greasing on initial installation 190
mounting 80
serial numbers
on four-point contact ball bearings 78
on four-row cylindrical roller bearings 82
on four-row tapered roller bearings 89
on plummer block housings 27
service life 28329
influencing factors 2303231
set screw See grub screw
shaft alignment 1673174
measuring conventions 1673168
methods 1703173
tolerances 169
shaft locking methods 94396
shaft movement 234
shaft repair 1523154
shelf life
of bearings 41
of elastomer seals 42
of lubricants 43
shields 40
shimming 163
shims See machinery shims
shock loading
additive requirements 207
bearing damage 248, 308
relubrication interval adjustment 195
Shopfloor Awareness Cards 330
short foot See soft foot
sine bars 47
size code 22
SKF ptitude Decision Support 327
SKF ptitude Exchange 327
SKF Authorized Distributors 331
SKF Bearing fitting tool kit
for installing seals 146
for mounting bearings 72
SKF Certified Electric Motor Rebuilders 331
SKF Certified Maintenance Partners 331
SKF CircOil 215
SKF Client Needs Analysis 328
SKF ConCentra ball bearing units
dismounting 275
mounting 1113114
SKF ConCentra locking 94395
SKF ConCentra roller bearing units
dismounting 2763277
mounting 1143118
445Index
SKF Drive-up Method 57361
axial displacement values 4063413
hydraulic nuts 4063413
oil pressure values 4063413
tools 56357
SKF Duoflex 215
SKF Duralife 145
SKF Duralip 145
SKF EMCOR rating 188
SKF Energy Monitoring Service 3293330
SKF Grease Test Kit 222
SKF greases 4233431
for SKF SYSTEM 24 lubricators 199
selection chart 4303431
SKF Lubrication Planner 180
SKF LubriLean 215
SKF Machine Condition Advisor 223
SKF Monoflex 215
SKF Multiflex 215
SKF Oil+Air 215
SKF ProFlex 215
SKF rating life 27328
SKF Reliability Maintenance Institute 3263327
SKF SPEEDI-SLEEVE 225
installation 1523153
SKF Springcover 1443145
SKF Springlock groove 1443145
SKF SYSTEM 24 1983199
SKF tools and products
for alignment 419
for condition monitoring 4323434
for dismounting 4353436
for lubrication 4203422
for mounting 4163418
SKF traffic light concept 1863187
SKF V2F rating 188
SKF Vibracon SM elements 1623165
SKF WAVE seal lip 143
skidding See smearing
sliding See smearing
slotted elements See chocks
smearing
resulting in adhesive wear 301, 312
troubleshooting 244, 247
SNL housings See plummer block housings
soaps 183, 185
soft foot 162
solid additives
in centralized lubrication systems 213
in grease 184
in oil 203
solid contaminants 2113212
troubleshooting 245, 249
solid oil 1823183
solid seals
installation 133, 149
types and designs 1443145
solvents
for cleaning bearings 224
handling 225
types 254
SONL housings See plummer block housings
spacer lugs 144
spacer rings 91, 151
spacing washers 156
spalling 231
subsurface initiated 3033304, 309
surface initiated 301, 304, 3103311
troubleshooting 244, 2493250
speed factor 187
limits for grease lubrication 186, 194
SPEEDI-SLEEVE See SKF SPEEDI-SLEEVE
spherical roller bearings
axial drive-up values 403
clearance reduction values 403
designs 17
lock nut tightening angles 403
mounting 90
mounting (oil injection method) 62366
mounting (SKF Drive-up Method) 57361
radial internal clearance values 3973398
SKF Drive-up Method values 4073411
spheroidal graphite cast iron 126
spindle reconditioning services 331
spirit levels
for belt alignment 176
for shaft alignment 170
splines 150, 152
split plummer block housings See plummer block housings
split seals 133, 1543155
Springcover See SKF Springcover
stabilizing rings See locating rings
standstill
excessive voltage damage 307
moisture corrosion damage 3173318
vibration damage 319
start-up
of grease lubricated bearings 1863187, 1903191
of oil lubricated bearings 207
stationary inner ring 293
stationary load 32
stationary machine 1673168
storage
bearing damage 308
of bearings 41
of elastomer seals 42
of lubricants 42343
straightedge method
for belt alignment 1763177
for offset drive alignment 175
for shaft alignment 1703171
subsurface initiated fatigue 2983299, 309
caused by defective seats 303
caused by incorrect fits 301
caused by static misalignment 304
suffix list
for bearing units 96
for bearings 24325
for housings 1273128
for seals 145
super-precision bearings
greasing on initial installation 191
types and designs 12, 18
support surfaces
for bearing units 101
for housings 130
surface damage 2333235
surface initiated fatigue 2983299
caused by defective seats 303
caused by incorrect fits 301
caused by ineffective lubrication 3103311
caused by static misalignment 304
troubleshooting 249
surface roughness 36
mean values 387
surface wetting 202
sustainability 3293330
synthetic oil
in grease 183
in oil 203
SYSTEM 24 See SKF SYSTEM 24
T
taconite seals 1283129
take-up housings 1253126
take-up units
dismounting 2703277
mounting 1043120
taper gauges 47348
44614
tapered roller bearings
adjusting back-to-back arrangements 86388
adjusting face-to-face arrangements 84385
axial internal clearance values 396
greasing on initial installation 191
mounting 84389
trouble conditions 245
types and designs 16317
tapered shaft seats
dismounting bearings 2593264
measurement form 48
mounting bearings 54356
temperature
ambient 161
condition monitoring 221
operating 1863187
reference 203
trouble conditions 233
temperature difference
between inner and outer rings 221
considerations for alignment 161
considerations for fit selection 33
trouble conditions 240
terminology 10311
test running 174
thermal cracking 2983299
caused by incorrect fits 301
thermal expansion
considerations for alignment 161, 169
considerations for fit selection 33334
mounting CARB toroidal roller bearings 91
thermal inspection 221
thermometers 221
thickeners
compatibility 201
types 183
thrust bearings 18319
tightening torque 166
values for attachment bolts/nuts 105, 131
values for bearing units 1023103
values for cap bolts 131
tolerance classes See ISO, tolerance classes
tolerance grades See ISO, tolerance grades
tolerance tables
for housings (inch) 3723381
for housings (metric) 3503359
for shafts (inch) 3603371
for shafts (metric) 3383349
for shafts (sleeve mounting) 384
modified deviations for inch bearings 3823383
tools See SKF tools and products
torque indicator 1123113
torque keys See hexagonal keys
Total Cost of Ownership 329
total loss lubrication systems 214
track runner bearings 19320
traffic light concept See SKF traffic light concept
training 3263327
transportation damage 308
troubleshooting 2283251
true brinelling 308
U
ultrasonic probes 221
unbalance 243, 246
unit conversion table 437
units See bearing units
universally matchable bearings
axial internal clearance values 389
axial preload values 389
mounting 76
V
V2F rating See SKF V2F rating
variable speed machines 223
vertical shafts
considerations for lubricant selection 182
relubrication interval adjustment 195
Vibracon SM elements See SKF Vibracon SM elements
vibration
false brinelling damage 308, 319
grease performance test 188
relubrication interval adjustment 195
troubleshooting 234
vibration monitoring 2223224
bearing defect frequencies 224
taking measurements 223
viscosity
calculation 2043206
equivalents 414
of base oil in grease 185
of oil 203
trouble conditions 246, 249
viscosity grades See ISO viscosity grades
viscosity index 203
viscosity ratio 204
VKA test 188
voltage 307
V-ring seals
installation in plummer block housings 135
installation over a shaft 157
removal 286
W
washboarding 322
washdowns 29
washers
for bearing units 101
for housings 131
water
bearing damage 3173318
contamination 181, 187, 212
content in oil 2103211
resistance of grease 183, 185, 188
WAVE seal lip See SKF WAVE seal lip
wear 2983299
abrasive 3003301, 313, 3143315
adhesive 301, 312
wear sleeves 1523153
welding 172
wheel hubs 87388
withdrawal sleeves
dismounting bearings 2643267
mounting bearings (oil injection method) 62366
mounting bearings (SKF Drive-up Method) 57361
X
XNBR See acrylonitrile-butadiene rubbers
Y
Y-bearing units See bearing units
Y-bearings
assembly 121
radial internal clearance values 401
types and designs 21
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