SKF - Rolling Bearings

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5.1 Single row cylindrical roller bearings d 90 – 95 mm B r 2 r 1 r 3 r4 D D 1 d F d 1 r 1 r2 r 4 r 3 r 3 r 4 d 1 E NU NJ NUP N Principal dimensions Basic load ratings dynamic static d D B C C 0 P u Fatigue load limit Speed ratings Mass Designations Reference speed Limiting speed Bearing with standard cage Alternative standard cage 1) mm kN kN r/min kg – 90 140 24 80,9 104 12,7 5 600 8 500 1,35 NU 1018 ML M 160 30 208 220 27 4 500 5 000 2,3 * NU 218 ECP J, M, ML 160 30 208 220 27 4 500 5 000 2,3 * NJ 218 ECP J, M, ML 160 30 208 220 27 4 500 5 000 2,45 * NUP 218 ECP J, M, ML 160 30 208 220 27 4 500 5 000 2,3 * N 218 ECP M 160 40 280 315 39 4 500 5 000 3,15 * NU 2218 ECP J, M, ML 160 40 280 315 39 4 500 5 000 3,25 * NJ 2218 ECP J, M, ML 160 40 280 315 39 4 500 5 000 3,3 * NUP 2218 ECP J, M, ML 190 43 365 360 43 3 800 4 500 5,25 * NU 318 ECP J, M, ML 190 43 365 360 43 3 800 4 500 5,45 * NJ 318 ECP J, M, ML 190 43 365 360 43 3 800 4 500 5,55 * NUP 318 ECJ M, ML, P 190 43 365 360 43 3 800 4 500 5,3 * N 318 ECP M 190 64 500 540 65,5 3 800 4 500 8 * NU 2318 ECP J, M, ML 190 64 500 540 65,5 3 800 4 500 8,15 * NJ 2318 ECP J, M, ML 190 64 500 540 65,5 3 800 4 500 8,25 * NUP 2318 ECP J, M, ML 225 54 380 415 48 3 400 4 000 10,5 NU 418 M 95 145 24 84,2 110 13,2 5 300 8 000 1,45 NU 1019 ML M 170 32 255 265 32,5 4 300 4 800 2,85 * NU 219 ECP J, M, ML 170 32 255 265 32,5 4 300 4 800 2,9 * NJ 219 ECP J, M, ML 170 32 255 265 32,5 4 300 4 800 2,9 * NUP 219 ECP J, M, ML 170 32 255 265 32,5 4 300 4 800 2,85 * N 219 ECP – 170 43 325 375 45,5 4 300 4 800 3,8 * NU 2219 ECP J, ML 170 43 325 375 45,5 4 300 4 800 3,95 * NJ 2219 ECP J, ML 170 43 325 375 45,5 4 300 4 800 4 * NUP 2219 ECP J, ML 200 45 390 390 46,5 3 600 4 300 6,2 * NU 319 ECP J, M, ML 200 45 390 390 46,5 3 600 4 300 6,3 * NJ 319 ECP J, M, ML 200 45 390 390 46,5 3 600 4 300 6,3 * NUP 319 ECP J, M, ML 200 45 390 390 46,5 3 600 4 300 6,2 * N 319 ECP M 1) When ordering bearings with an alternative standard cage the suffix of the standard cage has to be replaced by the suffix of the alternative cage. For example NU .. ECP becomes NU .. ECML (for permissible speed † page 600). ** <strong>SKF</strong> Explorer bearing 622
a r b B 2 r b r a r 4 r 3 B 1 D a d a d b d b d a D a d d 1 5.1 Angle ring Dimensions Abutment and fillet dimensions Calculation factor Angle ring Designation Mass Dimensions d d 1 D 1 F, E r 1,2 r 3,4 s 1) d a d a d b , D a D a r a r b k r B 1 B 2 ~ ~ min. min. min. max. min. max. max. max. mm mm – – kg mm 90 – 122 103 1,5 1,1 3,5 96 101 106 133 1,5 1 0,15 – 114 140 107 2 2 1,8 101 104 110 149 2 2 0,15 HJ 218 EC 0,31 9 14 114 140 107 2 2 1,8 101 104 117 149 2 2 0,15 HJ 218 EC 0,31 9 14 114 140 107 2 2 – 101 – 117 149 2 2 0,15 – 114 – 145 2 2 1,8 101 142 148 149 2 2 0,12 – 114 140 107 2 2 2,6 101 104 110 149 2 2 0,2 HJ 2218 EC 0,33 9 15 114 140 107 2 2 2,6 101 104 117 149 2 2 0,2 HJ 2218 EC 0,33 9 15 114 140 107 2 2 – 101 – 117 149 2 2 0,2 – 124 162 113,5 3 3 2,5 104 110 116 175 2,5 2,5 0,15 HJ 318 EC 0,62 12 18,5 124 162 113,5 3 3 2,5 104 110 127 175 2,5 2,5 0,15 HJ 318 EC 0,62 12 18,5 124 162 113,5 3 3 – 104 – 127 175 2,5 2,5 0,15 – 124 – 169,5 3 3 2,5 104 166 173 175 2,5 2,5 0,12 – 124 162 113,5 3 3 6 104 110 116 175 2,5 2,5 0,25 HJ 2318 EC 0,66 12 22 124 162 113,5 3 3 6 104 110 127 175 2,5 2,5 0,25 HJ 2318 EC 0,66 12 22 124 162 113,5 3 3 – 104 – 127 175 2,5 2,5 0,25 – – 176 123,5 4 4 4,9 108 120 126 205 3 3 0,15 – 95 – 127 108 1,5 1,1 3,5 101 106 111 138 1,5 1 0,15 – 120 149 112,5 2,1 2,1 1,7 107 110 115 157 2 2 0,15 HJ 219 EC 0,33 9 14 120 149 112,5 2,1 2,1 1,7 107 110 123 157 2 2 0,15 HJ 219 EC 0,33 9 14 120 149 112,5 2,1 2,1 – 107 – 123 157 2 2 0,15 – 120 – 154,5 2,1 2,1 1,7 107 152 157 159 2 2 0,12 – – 149 112,5 2,1 2,1 3 107 110 115 157 2 2 0,2 – 120 149 112,5 2,1 2,1 3 107 110 123 157 2 2 0,2 – 120 149 112,5 2,1 2,1 – 107 – 123 157 2 2 0,2 – 132 170 121,5 3 3 2,9 110 118 125 185 2,5 2,5 0,15 HJ 319 EC 0,78 13 20,5 132 170 121,5 3 3 2,9 110 118 135 185 2,5 2,5 0,15 HJ 319 EC 0,78 13 20,5 132 170 121,5 3 3 – 110 – 135 185 2,5 2,5 0,15 – 132 – 177,5 3 3 2,9 110 174 181 185 2,5 2,5 0,12 – 1) Permissible axial displacement from the normal position of one bearing ring relative to the other. 623
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Rolling bearings
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Rolling bearings
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E Bearing specifics ...............
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7.5 Matched bearings arranged back-
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7
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Foreword This catalogue contains th
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without flange rings er bearings be
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Units of measurement This catalogue
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Meeting the toughest challenges Our
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Bearings SKF is the world leader in
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Bearing basics ....................
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Bearing basics Selecting rolling be
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Bearing basics Bearing systems (†
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Bearing basics Bearing types and de
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Bearing basics Angular contact ball
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Bearing basics Cylindrical roller b
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Bearing basics Needle roller bearin
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Bearing basics Angular contact thru
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Bearing basics Support rollers (con
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Bearing basics Fig. 7 a b c c d Mac
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Bearing basics Boundary dimensions
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Bearing basics Basic bearing design
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Bearing basics Diagram 3 Designatio
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Bearing basics Basic selection crit
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Bearing basics Loads Fig. 19 Magnit
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Bearing basics Combined loads A com
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Bearing basics Misalignment Angular
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Bearing basics Friction Rolling bea
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Bearing basics Mounting and dismoun
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Bearing basics Sealing solutions To
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Selecting bearing size B A systems
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Bearing life and load ratings Beari
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Selecting bearing size using the li
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2 Selecting bearing size using the
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Dynamic bearing loads Equivalent dy
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Selecting bearing size using static
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Selecting bearing size using static
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Calculation examples • A more cos
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SKF calculation tools SKF Bearing B
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SKF life testing SKF life testing S
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Friction The friction in a rolling
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Friction The SKF model for calculat
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Friction Kinematic replenishment/st
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Friction Table 2a Geometric and loa
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Friction Table 3a Geometric constan
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Friction Table 3e Geometric constan
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Friction Drag losses Bearings lubri
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Friction Drag losses for vertical s
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Friction Starting torque The starti
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Speeds Basics of bearing speed ....
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Reference speed Diagram 1 Heat flow
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Reference speed Diagram 2 Adjustmen
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Reference speed Diagram 4 Adjustmen
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Reference speed Example 1 An SKF Ex
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Special cases Special cases In cert
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Vibration generation at high speeds
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Bearing specifics Dimensions For in
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Bearing specifics Table 1 Tolerance
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Bearing specifics Table 2 Diameter
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Bearing specifics Table 4 P6 class
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Bearing specifics Table 6 Normal an
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Bearing specifics Table 8 P5 class
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Bearing specifics Table 10 Toleranc
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Bearing specifics Table 12 Normal t
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Bearing specifics Table 15 Chamfer
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Bearing specifics The initial inter
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Bearing specifics Ceramics The comm
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Bearing specifics Therefore, whethe
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Bearing specifics Hydrogenated acry
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Design considerations Bearing syste
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Bearing systems locating bearing po
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Bearing systems Adjusted bearing sy
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Radial location of bearings Radial
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Radial location of bearings 3. Bear
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Radial location of bearings Bearing
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Radial location of bearings Shaft a
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Radial location of bearings Table 2
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Radial location of bearings Relatio
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Radial location of bearings The per
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Axial location of bearings Locating
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Axial location of bearings Bearings
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Axial location of bearings CARB tor
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Designing associated components Fig
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Selecting internal clearance or pre
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Sealing solutions Fig. 43 Fig. 44 S
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Sealing solutions Integral bearing
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Sealing solutions External seals Fo
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Sealing solutions Fig. 57 Fig. 58 F
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Sealing solutions V-ring seals V-ri
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Sealing solutions F 237
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Lubrication Basics of lubrication R
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Lubrication Grease lubrication The
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Lubrication Lubricating greases Lub
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Lubrication Temperature zones Tempe
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Lubrication Protection against corr
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Lubrication SKF greases - technical
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Lubrication Relubrication Rolling b
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Lubrication Very slow speeds Select
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Lubrication Diagram 4 Relubrication
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Lubrication Relubrication procedure
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Lubrication To effectively replace
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Lubrication Oil lubrication Fig. 6
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Lubrication Oil jet For very high-s
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Lubrication Selecting lubricating o
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20 000 Lubrication Diagram 5 Estima
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Mounting, dismounting and bearing c
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General Fig. 1 a b 1 2 a b 1 2 3 4
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Mounting Mounting Depending on the
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Mounting Bearing adjustment The int
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Mounting Fig. 14 the bearing († f
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Mounting Fig. 18 a c b b a c a Fig.
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TMEM 1500 Mounting Fig. 22 0.450 ON
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Dismounting Fig. 23 Dismounting If
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Dismounting Dismounting bearings fi
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Dismounting Fig. 32 Fig. 33 H 289
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Inspection and cleaning Bearing sto
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Deep groove ball bearings 1 Y-beari
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1 Deep groove ball bearings Designs
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1 Deep groove ball bearings Double
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1 Deep groove ball bearings Sealing
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1 Deep groove ball bearings Low-fri
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1 Deep groove ball bearings ICOS oi
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1 Deep groove ball bearings Grease
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1 Deep groove ball bearings Bearing
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1 Deep groove ball bearings Perform
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1 Deep groove ball bearings Bearing
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1 Deep groove ball bearings Table 6
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1 Deep groove ball bearings Loads S
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1 Deep groove ball bearings Tempera
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1 Deep groove ball bearings Designa
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1.1 Single row deep groove ball bea
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1.2 Capped single row deep groove b
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1.3 ICOS oil sealed bearing units d
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1.6 Stainless steel deep groove bal
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1.7 Capped stainless steel deep gro
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1.10 Double row deep groove ball be
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1.10 Double row deep groove ball be
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2 Y-bearings (insert bearings) Desi
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Design and variants Fig. 4 2 Fig. 2
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hole in the outer ring groove. This
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Y-bearings with a tapered bore Y-be
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Sealing solutions SKF supplies all
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Shields On request, Y-bearings can
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Design and variants Diagram 1 2 Gre
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Y-bearings for agricultural applica
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Design and variants 2 Table 4 Rubbe
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Performance classes 2 439
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Bearing data 2 with SKF ConCentra l
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Bearing data Fig. 27 2 5° 443
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Calculation factors Bearing series
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• outer ring temperature ≤ 60
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Threaded holes in the inner ring of
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Mounting and dismounting When mount
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Hook spanners for Y-bearings on an
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Mounting and dismounting Eccentric
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Designation system 2 Group 2 Group
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Dimensions Basic load ratings dynam
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Principal dimensions Basic load Fat
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463 2.2
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Dimensions Basic load Fatigue Limit
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Dimensions Basic load Fatigue Limit
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2.6 SKF ConCentra Y-bearings, inch
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2.8 Y-bearings with a tapered bore
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473 2.9
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3 Angular contact ball bearings Des
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3 Angular contact ball bearings Pai
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3 Angular contact ball bearings Fou
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3 Angular contact ball bearings Sea
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3 Angular contact ball bearings Loc
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3 Angular contact ball bearings Bea
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3 Angular contact ball bearings Tab
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3 Angular contact ball bearings Loa
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3 Angular contact ball bearings Min
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3 Angular contact ball bearings Mat
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3 Angular contact ball bearings Mat
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3.1 Single row angular contact ball
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3.2 Double row angular contact ball
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3.2 Double row angular contact ball
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3.3 Capped double row angular conta
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3.3 Capped double row angular conta
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3.4 Four-point contact ball bearing
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4 Self aligning ball bearings Desig
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Designs and variants Basic design b
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Designs and variants Table 2 Cages
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Bearing data Bore tolerance of self
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Permissible speed Temperature limit
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Design of bearing arrangements Bear
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Design of bearing arrangements Tabl
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Designation system 4 551
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a r a D a d a 4.1 Dimensions Abutme
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a D a 4.3 Dimensions Abutment and f
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Principal dimensions Abutment dimen
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5 Cylindrical roller bearings Desig
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5 Cylindrical roller bearings Singl
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6 Needle roller bearings Designs an
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Designs and variants Basic design b
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Designs and variants Drawn cup need
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Designs and variants Greases for fu
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Designs and variants Needle roller
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Designs and variants Alignment need
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Designs and variants NKIA series Ne
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Designs and variants NX series Need
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Designs and variants Cages Dependin
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Designs and variants Table 3 Cages
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Designs and variants solid contamin
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Designs and variants Relubrication
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Bearing data Drawn cup needle rolle
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Bearing data Alignment needle rolle
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Bearing data Thrust ball bearing Bo
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Bearing data Table 5 Needle roller
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Bearing data Table 10 Raceway toler
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Loads Loads Needle rollers and cage
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Loads Symbols Cylindrical roller th
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Design of bearing arrangements Abut
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Design of bearing arrangements Comb
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Design of bearing arrangements 6 71
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Designation system Group 4 4.1 4.2
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Principal dimensions Basic load rat
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729 6.1
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6.2 Dimensions Appropriate inner ri
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BK .. RS HN 6.2 Dimensions Appropri
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BK .. RS HN HK BK (double row) (dou
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HN HK BK (double row) (double row)
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HN 6.2 Dimensions Appropriate inner
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D a r a 747 6.3 Dimensions Abutment
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D a r a r a d a 6.4 Dimensions Abut
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d a 6.4 Dimensions Abutment and fil
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a r a D a d a D b 6.5 Dimensions Ab
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a D a r a 773 d a D b 6.5 Dimension
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a r a D a d a D b d b 6.6 Dimension
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D a r a r b d a 6.8 Dimensions Abut
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d a r a r a D a 6.9 Dimensions Abut
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D a 6.9 Dimensions Abutment and fil
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C a d a r a r a D a B i d i F r a 6
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a 6.11 Dimensions Abutment and fill
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a 6.12 Dimensions Abutment and fill
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Dimensions Mass Designation Dimensi
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Dimensions Mass Designation d F B r
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795 6.14
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7 Tapered roller bearings Designs a
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7 Tapered roller bearings Assortmen
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7 Tapered roller bearings Matched b
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7 Tapered roller bearings Performan
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7 Tapered roller bearings Bearing d
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7 Tapered roller bearings Axial int
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7 Tapered roller bearings Calculati
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7 Tapered roller bearings Calculati
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7 Tapered roller bearings Temperatu
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7 Tapered roller bearings Table 6 S
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7 Tapered roller bearings Designati
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7.1 Metric single row tapered rolle
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7.2 Inch single row tapered roller
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7.3 Single row tapered roller beari
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7.4 Matched bearings arranged face-
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7.6 Matched bearings arranged in ta
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8 Spherical roller bearings Designs
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Designs and variants Fig. 4 Fig. 5
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Designs and variants • E design b
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Designs and variants Greases for se
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Designs and variants Bearings for v
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Performance classes Performance cla
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Bearing data Width tolerances for S
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Bearing data Table 5 Radial interna
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Loads Table 6 Symbols B = bearing w
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Design of bearing arrangements Desi
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Design of bearing arrangements Fig.
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Design of bearing arrangements Tabl
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Designation system Group 4 4.1 4.2
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a r a D a d a Dimensions Abutment a
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a r a 931 D a d a Dimensions Abutme
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Principal dimensions Abutment and f
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Principal dimensions Mass Designati
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953 8.5
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9 CARB toroidal roller bearings Des
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9 CARB toroidal roller bearings Ass
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9 CARB toroidal roller bearings Sea
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9 CARB toroidal roller bearings Bea
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9 CARB toroidal roller bearings Tab
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9 CARB toroidal roller bearings Axi
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9 CARB toroidal roller bearings Cal
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9 CARB toroidal roller bearings Loa
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9 CARB toroidal roller bearings App
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9.1 CARB toroidal roller bearings d
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9.2 Sealed CARB toroidal roller bea
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9.2 Sealed CARB toroidal roller bea
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9.3 CARB toroidal roller bearings o
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10 Thrust ball bearings Designs and
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Designs and variants Bearings with
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Loads Loads Minimum load For additi
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Designation system Designation syst
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d a r a r a D a Dimensions Abutment
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R d a r a r a D a Dimensions Abutme
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R d a r a r a D a Dimensions Abutme
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D a d a r a r b Dimensions Abutment
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D a d a r a r b Dimensions Abutment
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D a d a r a r b R Dimensions Abutme
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11 Cylindrical roller thrust bearin
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11.1 Cylindrical roller thrust bear
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12 Needle roller thrust bearings De
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Designs and variants Intermediate w
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Designs and variants LS series univ
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Bearing data Bearing data Dimension
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Bearing data Table 3 ISO tolerance
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Permissible speed Temperature limit
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Designation system Designation syst
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B 1 B B r 1 45° r 1 r 2 D d D d d
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B 1 B B r 1 45° r 1 r 2 r 1 r 2 D
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B 1 B r 1 45° r 1 r 2 D d D d d 1
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13 Spherical roller thrust bearings
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13.1 Spherical roller thrust bearin
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14 Track runner bearings Designs an
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Designs and variants Support roller
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Designs and variants NUTR .. A desi
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Designs and variants KR design cam
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Designs and variants during mountin
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Designs and variants Grease fitting
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Designs and variants Cages Dependin
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Designs and variants Relubrication
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Bearing data Support rollers (R)NA
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Loads Cam followers Symbols ... The
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Speed limits Temperature limits The
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Design of associated components Gui
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Mounting 14 1123
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Designation system Group 1 Group 2
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Outside diameter Basic load ratings
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Outside diameter Basic load ratings
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Designation Basic load ratings Fati
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Designation Basic load ratings Fati
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3 r 4 d 1 NUTR .. A PWTR …2RS Des
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3 r 4 d 1 NUTR .. A PWTR …2RS Des
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d 1 45° r NNTR ...2ZL Designation
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B 2 M 1 KR .. B, size ≥ 30 KRV ..
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d 1 B 3 B 3 d d 1 c d NUKR .. A (NU
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15A Sensor bearing units Motor enco
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Motor encoder units ring that conta
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Motor encoder units Power supply SK
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Motor encoder units Sensor The perm
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50 Motor encoder units Fig. 12 Moun
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Motor encoder units Designation sys
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Other sensor bearing units Other se
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Other sensor bearing units Sensor u
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a r a +1 D 2 d b d a D a Bore diame
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15B Bearings for extreme temperatur
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15B.1 Single row deep groove ball b
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15B.1 Single row deep groove ball b
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15B.2 Y-bearings for extreme temper
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15C Bearings with Solid Oil Feature
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Bearings and bearing units with Sol
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Designation system Speed limits The
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15D SKF DryLube bearings SKF DryLub
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15D SKF DryLube bearings Designs an
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15D SKF DryLube bearings Bearing da
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15D SKF DryLube bearings Table 2 Ra
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15D SKF DryLube bearings Selecting
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15D SKF DryLube bearings Speed limi
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15E INSOCOAT bearings Designs and v
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Designs and variants INSOCOAT beari
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Bearing data Bearing data Deep groo
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Designation system Fig. 2 Designati
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a r a D a d a 15E.1 Dimensions Abut
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a r b 15E.2 D a d a d b Dimensions
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a r b 1217 D a d a d b Dimensions A
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15F Hybrid bearings Designs and var
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15F Hybrid bearings Assortment The
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15F Hybrid bearings Hybrid cylindri
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15F Hybrid bearings Bearing data De
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15F Hybrid bearings Temperature lim
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15F.1 Hybrid deep groove ball beari
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15F.2 Sealed hybrid deep groove bal
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15F.2 Sealed hybrid deep groove bal
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15F.3 XL hybrid deep groove ball be
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15F.4 Hybrid cylindrical roller bea
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15G NoWear coated bearings NoWear c
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NoWear coating NoWear coated bearin
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Designation system Designs and vari
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15H Polymer ball bearings SKF polym
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15H Polymer ball bearings Materials
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15H Polymer ball bearings Bearing d
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15H Polymer ball bearings Loads The
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15H Polymer ball bearings Diagram 1
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15H Polymer ball bearings Permissib
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15H Polymer ball bearings Designati
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15H.1 Polymer single row deep groov
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15H.1 Polymer single row deep groov
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15H.2 Polymer thrust ball bearings
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16 Bearing accessories Adapter slee
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Adapter sleeves Fig. 2 Sleeve with
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Adapter sleeves Fig. 7 E (with a KM
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Withdrawal sleeves Withdrawal sleev
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Withdrawal sleeves Product data Dim
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Lock nuts Fig. 14 Fig. 17 MB / W lo
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Lock nuts Precision lock nuts with
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Lock nuts 1283 16
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Lock nuts with an integral locking
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Lock nuts KMD precision lock nuts K
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Designation system Suffix Sleeves B
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Principal dimensions d 1 d d 3 B 1
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Principal dimensions d 1 d d 3 B 1
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Principal dimensions Thread Mass De
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Dimensions Axial load carrying capa
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Designation Dimensions Mass d d 1 d
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Dimensions Mass Designations Lock n
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1323 16.7
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Designations Dimensions Mass Lockin
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Threads 1) Dimensions Mass Designat
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1329 16.9
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Designation Dimensions Mass d d 1 d
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16.12 KMK lock nuts with an integra
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1341 16.16
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Text index A A angular contact ball
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ass cage types 37-38 in polymer bal
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sealing solutions 579-581, 599, 668
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extreme temperature bearings 1169-1
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housings 24 fits and tolerance clas
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M M angular contact ball bearings 4
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O ocean-going vessels 83 off-highwa
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values for CARB toroidal roller bea
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SM 721 small bearings 275, 285 smea
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terminology 25 types 33-35 thrust c
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design 1223 dimensional stability 1
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Designation Product Product table N
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Page 1377:
1375 Index Index
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SKF - Rolling Bearings

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