Ball and Roller Bearings - Ntn-snr.com

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Cylindrical Roller Bearings B B r r1 r r1 r1 r r1 r1 r r D d FW J J D EW d J Type NU Type NJ Type NUP Type N Type NF d 160200mm Boundary dimensions Basic load ratings Limiting speeds 1 Bearing numbers dynamic static dynamic static mm kN kgf rpm type type type type 2 2 d D B r s min r 1s min Cr C or C r C or grease oil NU NJ NUP N 160 170 180 190 290 80 3 3 630 940 64,500 96,000 2,100 2,400 NU2232 NJ NUP N 290 80 3 3 810 1,190 82,500 121,000 1,900 2,200 NU2232E NJ NUP 340 68 4 4 700 875 71,000 89,500 2,000 2,300 NU332 NJ NUP N 340 68 4 4 860 1,050 87,500 107,000 1,800 2,100 NU332E NJ NUP 340 114 4 4 1,070 1,520 109,000 155,000 1,700 2,000 NU2332 NJ NUP N 340 114 4 4 1,310 1,820 134,000 186,000 1,600 1,900 NU2332E NJ NUP 260 42 2.1 2.1 278 400 28,300 41,000 2,600 3,000 NU1034 NJ NUP N 310 52 4 4 475 635 48,500 65,000 2,200 2,500 NU234 NJ NUP N 310 52 4 4 605 800 61,500 81,500 2,000 2,300 NU234E NJ NUP 310 86 4 4 715 1,080 73,000 110,000 2,000 2,300 NU2234 NJ NUP N 310 86 4 4 965 1,410 98,500 144,000 1,800 2,100 NU2234E NJ NUP 360 72 4 4 795 1,010 81,500 103,000 1,800 2,200 NU334 NJ NUP N 360 120 4 4 1,220 1,750 125,000 179,000 1,600 1,900 NU2334 NJ NUP N 280 46 2.1 2.1 340 485 35,000 49,500 2,400 2,900 NU1036 NJ NUP N 320 52 4 4 495 675 50,500 69,000 2,000 2,400 NU236 NJ NUP N 320 52 4 4 625 850 64,000 87,000 1,800 2,200 NU236E NJ NUP 320 86 4 4 745 1,140 76,000 117,000 1,800 2,200 NU2236 NJ NUP N 320 86 4 4 1,010 1,510 103,000 154,000 1,600 1,900 NU2236E NJ NUP 380 75 4 4 905 1,150 92,000 118,000 1,700 2,000 NU336 NJ NUP N 380 126 4 4 1,380 1,990 141,000 203,000 1,500 1,800 NU2336 NJ NUP N 290 46 2.1 2.1 350 510 36,000 52,000 2,300 2,700 NU1038 NJ NUP N 340 55 4 4 555 770 56,500 78,500 1,900 2,200 NU238 NJ NUP N 340 55 4 4 695 955 71,000 97,500 1,700 2,000 NU238E NJ NUP 340 92 4 4 830 1,290 84,500 131,000 1,700 2,000 NU2238 NJ NUP N 340 92 4 4 1,100 1,670 113,000 170,000 1,500 1,800 NU2238E NJ NUP 400 78 5 5 975 1,260 99,500 129,000 1,600 1,900 NU338 NJ NUP N 400 132 5 5 1,520 2,220 155,000 226,000 1,400 1,700 NU2338 NJ NUP N 200 310 51 2.1 2.1 390 580 40,000 59,500 2,200 2,600 NU1040 NJ NUP N 360 58 4 4 620 865 63,500 88,500 1,800 2,100 NU240 NJ NUP N 360 58 4 4 765 1,060 78,000 108,000 1,600 1,900 NU240E NJ NUP 360 98 4 4 925 1,440 94,000 147,000 1,600 1,900 NU2240 NJ NUP N 360 98 4 4 1,220 1,870 125,000 191,000 1,500 1,700 NU2240E NJ NUP 420 80 5 5 975 1,270 99,500 130,000 1,500 1,800 NU340 NJ NUP N 1 This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable. 2 Minimal allowable dimension for chamfer dimension r or r1. B-104
Cylindrical Roller Bearings ra r1a r1a ra Da dc da dd dc de Db db Db Equivalent bearing load dynamic PrFr static PorFr Dimensions Abutment and fillet dimensions Mass mm mm kg type d a d b d c d d d e D a D b r as r 1as type NU type N NF F w E w J min min max min min max max min 4 max max approx. 195 255 207 173 173 192 197 210 277 277 259 2.5 2.5 22 21.6 193 206.6 173 192 197 210 277 2.5 2.5 25.1 NF 208 292 225 176 176 200 211 228 324 324 297 3 3 31.3 30.6 204 223.2 176 200 211 228 324 3 3 34 208 292 225 176 176 200 211 228 324 324 297 3 3 50.5 49.5 204 223.2 176 200 211 228 324 3 3 56 193 237 201.8 181 181 190 197 203 249 249 239 2 2 7.88 7.76 NF 208 272 220.5 186 186 204 211 223 294 294 277 3 3 17 16.7 207 221.4 186 204 211 223 294 3 3 19.6 208 272 220.5 186 186 204 211 223 294 294 277 3 3 27.2 26.7 205 220.2 186 204 211 223 294 3 3 31 NF 220 310 238 186 186 216 223 241 344 344 315 3 3 37 36.1 220 310 238 186 186 216 223 241 344 344 315 3 3 59.5 58.3 205 255 215 191 191 203 209 216 269 269 257 2 2 10.3 10.1 NF 218 282 230.5 196 196 214 221 233 304 304 287 3 3 17.7 17.3 217 231.4 196 214 221 233 304 3 3 20.4 218 282 230.5 196 196 214 221 233 304 304 287 3 3 28.4 27.8 215 230.2 196 214 221 233 304 3 3 31.9 NF 232 328 252 196 196 227 235 255 364 364 333 3 3 44.2 43.2 232 328 252 196 196 227 235 255 364 364 333 3 3 69.5 68.1 215 265 225 201 201 213 219 226 279 279 267 2 2 10.7 10.5 NF 231 299 244.5 206 206 227 234 247 324 324 304 3 3 21.3 20.8 230 245.2 206 227 234 247 324 3 3 24.2 231 299 244.5 206 206 227 234 247 324 324 304 3 3 34.4 33.7 228 244 206 227 234 247 324 3 3 39.5 NF 245 345 265 210 210 240 248 268 380 380 351 4 4 49.4 48.3 245 345 265 210 210 240 248 268 380 380 351 4 4 80.5 78.9 229 281 239.4 211 211 226 233 241 299 299 283 2 2 13.9 13.7 NF 244 316 258 216 216 240 247 261 344 344 321 3 3 25.3 24.8 243 259 216 240 247 261 344 3 3 28.1 244 316 258 216 216 240 247 261 344 344 321 3 3 41.3 40.5 241 257.8 216 240 247 261 344 3 3 47.8 NF 260 360 280 220 220 254 263 283 400 400 366 4 4 55.8 54.5 4 Does not apply to side of the outer ring rib of type NF bearings. B-105
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For New Technology Network R corpor
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Warranty NTN warrants, to the origi
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TECHNICAL DATA CONTENTS 1. Classifi
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Classification and Characteristics
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Bearing Selection Select bearing’
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Bearing Selection 2.3 Selection of
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Load Rating and Life 3. Load Rating
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Load Rating and Life where, Lna : A
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Bearing Load Calculation 4. Bearing
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Bearing Load Calculation 4.1.2 Chai
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Bearing Load Calculation 4.4 Equiva
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Bearing Load Calculation 4.5 Allowa
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Bearing Load Calculation Fr2 70 K
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Boundary Dimensions and Bearing Num
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Boundary Dimensions and Bearing Num
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Bearing Tolerances Table 6.3 Tolera
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Bearing Tolerances 6.2 Chamfer meas
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Bearing Tolerances 6.3 Bearing tole
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Bearing Fits 7.3.2 Recommended Fits
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Bearing Fits Table 7.2 (3) Housing
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Bearing Fits Table 7.5 Numeric valu
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Bearing Fits Table 7.6 Fits for inc
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Bearing Internal Clearance and Prel
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Allowable Speed 9. Allowable Speed
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Lubrication 11. Lubrication 11.1 Lu
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Lubrication (1) Base oil Natural mi
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Lubrication 11.4 Solid grease (For
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Lubrication Bearing operating Lubri
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External bearing sealing devices 12
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External bearing sealing devices Ty
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Bearing Materials 13.2 Cage materia
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Shaft and Housing Design 14.2 Beari
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Bearing Handling 15. Bearing Handli
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Bearing Handling a) Installation on
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Bearing Handling 15.4 Post installa
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Bearing Handling Fig. 15.24 shows t
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Bearing Damage and Corrective Measu
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Technical Data Axial displacement m
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Technical Data 17.4 Fitting surface
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A-100
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INDEX OF BEARING TABLES Deep Groove
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Deep Groove Ball Bearings Open type
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Deep Groove Ball Bearings bearing i
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Deep Groove Ball Bearings D D1 rN r
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Deep Groove Ball Bearings Equivalen
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Expansion Compensating Bearings Da
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Miniature and Extra Small Bearings
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Miniature and Extra Small Ball Bear
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Angular Contact Ball Bearings Angul
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Angular Contact Ball Bearings 2. St
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Single and Duplex Arrangements Db r
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Page 155 and 156: Single and Duplex Arrangements Db r
Page 157 and 158: Single and Duplex Arrangements Db r
Page 159 and 160: High Speed Single and Duplex Arrang
Page 167 and 168: Ultra-High Speed Angular Contact Ba
Page 169 and 170: B-67
Page 171 and 172: Ceramic Ball Angular Contact Ball B
Page 173 and 174: Four-Point Contact Ball Bearings QJ
Page 175 and 176: Double Row Angular Contact Ball Bea
Page 177: Double Row Angular Contact Ball Bea
Page 180 and 181: Self-Aligning Ball Bearings B r ra
Page 186 and 187: Adapters (for self-aligning ball be
Page 188 and 189: Adapters (for self-aligning ball be
Page 191 and 192: Cylindrical Roller Bearings Cylindr
Page 193 and 194: Cylindrical Roller Bearings 2. Stan
Page 195 and 196: Cylindrical Roller Bearings ra r1a
Page 205: Cylindrical Roller Bearings ra r1a
Page 213 and 214: L Type Loose Rib B2 B2 r1 r1 B1 d d
Page 215 and 216: L Type Loose Rib B2 B2 r1 r1 B1 d d
Page 217 and 218: Multi-Row Cylindrical Roller Bearin
Page 223 and 224: Four-Row Cylindrical Roller Bearing
Page 231: Four-Row Cylindrical Roller Bearing
Page 234 and 235: Tapered Roller Bearings Table 1 (co
Page 236 and 237: Tapered Roller Bearings Inch Tapere
Page 238 and 239: Tapered Roller Bearings Inch Tapere
Page 240 and 241: Tapered Roller Bearings Metric syst
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Tapered Roller Bearings Metric syst
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Tapered Roller Bearings Inch system
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Multi-Row Tapered Roller Bearings O
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Multi-Row Tapered Roller Bearings I
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Multi-Row Tapered Roller Bearings I
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Four Row Tapered Roller Bearings C2
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Spherical Roller Bearings 1. Types,
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Spherical Roller Bearings 5. Adapte
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Spherical Roller Bearings ra Da ra
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Adapter (For spherical roller beari
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Adapter (For spherical roller beari
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Withdrawal Sleeves (For spherical r
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Double Row Angular Contact Thrust B
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Double Row Angular Contact Thrust B
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High Speed Duplex Angular Contact T
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High Speed Duplex Angular Contact T
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Self-Aligning Roller Thrust Bearing
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Locknuts, Lockwashers & Lockplates
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Locknuts Reference withdrawal sleev
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Locknuts Reference bore no. 3 locko
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Nuts Reference withdrawal sleeve no
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Lockwashers Series AW ƒ r2 B2 ƒ1
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Lockwashers Series AWL ƒ r2 B2 ƒ
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Catalog List & Appendix Table
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Catalog List CATALOG TITLES CATALOG
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Appendix Table SI-customary unit co
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