​Bearings-General bearings-Taper roller bearings
Metric

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Taper roller bearings have tapered inner and outer ring raceways between which tapered rollers are arranged. If extended, the tapered surfaces converge towards a single point on the bearing axis. Their design makes taper roller bearings particularly suitable for the accommodation of combined radial and axial loads. The larger contact angle which corresponds to the angle of the outer ring raceway is, the larger the axial load carrying capacity. The inner ring with roller and cage assembly forms a unit (cone) which can be mounted separately from the outer ring (cup).

Single, double and four-row taper roller bearings with metric as well as inch dimensions are available. The single row bearings are the most prevalent.

Principal dimensions (mm) Bearing No. Basic load ratings (N) Speed ratings (rpm) weight (Kg)
d D T B C r r1(min) dynamic (Cr) static (Cor) grease oil
105 160 35 35 26 2.5 2 32021 205000 335000 2000 2800 2.4
160 43 43 34 2.5 2 33021 258000 438000 2000 2800 2.97
175 56 56 44 2.5 2 33121 352000 608000 1900 2600 5.29
190 39 36 30 3 2.5 30221 285000 398000 1800 2400 4.38
190 53 50 43 3 2.5 32221 380000 578000 1800 2400 6.26
190 68 68 52 3 2.5 33221 498000 770000 1800 2400 8.12
225 53.5 49 41 4 3 30321 432000 562000 1500 1900 9.38
225 58 53 36 4 3 31321 398000 525000 1500 1900 9.58
225 81.5 77 63 4 3 32321 648000 945000 1500 1900 14.8
110 170 38 38 29 2.5 2 32022 245000 402000 1900 2600 3.02
170 47 47 37 2.5 2 33022 288000 502000 1900 2600 3.74
180 56 56 43 2.5 2 33122 372000 638000 1800 2400 5.5
200 41 38 32 3 2.5 30222 315000 445000 1700 2200 5.21
200 56 53 46 3 2.5 32222 430000 665000 1700 2200 7.43
240 54.5 50 42 4 3 30322 472000 612000 1400 1800 11
240 63 57 38 4 3 31322 458000 610000 1400 1800 12.1
240 84.5 80 65 4 3 32322 725000 106000 1400 1800 17.8
120 180 38 38 29 2.5 2 32024 242000 405000 1700 2200 3.18
180 48 48 38 2.5 2 33024 298000 535000 1700 2200 4.07
200 62 62 48 2.5 2 33124 448000 778000 1600 2000 7.68
215 43.5 40 34 3 2.5 30224 338000 482000 1500 1900 6.2
215 61.5 58 50 3 2.5 32224 478000 758000 1500 1900 9.26
260 59.5 55 46 4 3 30324 562000 745000 1300 1700 14.2
260 68 62 42 4 3 31324 535000 725000 1300 1700 15.3
260 90.5 86 69 4 3 32324 825000 1230000 1300 1700 22.1
130 200 45 45 34 2.5 2 32026 335000 568000 1600 2000 4.94
200 55 55 43 2.5 2 33026 400000 728000 1600 2000 6.14
230 43.75 40 34 4 3 30226 365000 520000 1400 1800 6.94
230 67.75 64 54 4 3 32226 552000 888000 1400 1800 11.4
280 67.75 58 49 5 4 30326 640000 855000 1100 1500 17.3
280 72 66 44 5 4 31326 592000 805000 1100 1500 18.4
140 210 45 45 34 2.5 2 32028 330000 568000 1400 1800 5.15
210 56 56 44 2.5 2 33028 408000 755000 1400 1800 6.57
250 45.75 42 36 4 3 30228 408000 585000 1200 1600 8.73
250 71.75 68 58 4 3 32228 645000 1050000 1200 1600 14.4
300 67.75 62 53 5 4 30328 722000 975000 1000 1400 21.4
300 77 70 47 5 4 31328 678000 928000 1000 1400 22.8
150 225 48 48 36 3 2.5 32030 368000 635000 1300 1700 6.25
225 59 59 46 3 2.5 33030 460000 875000 1300 1700 7.98
270 49 45 38 4 3 30230 450000 645000 1100 1500 10.8
270 77 73 60 4 3 32230 720000 1180000 1100 1500 18.2
320 72 62 55 5 4 30330 802000 1090000 950 1300 25.2
320 82 75 50 5 4 31330 772000 1070000 950 1300 27.4
160 240 51 51 38 3 2.5 32032 420000 735000 1200 1600 7.66
290 52 48 40 4 3 30232 512000 738000 1000 1400 13.3
290 84 80 67 4 3 32232 858000 1430000 1000 1400 23.3
340 75 68 5.08 5 4 30332 878000 1190000 900 1200 29.5
170 260 57 57 43 3 2.5 32034 520000 920000 1100 1500 16.6
310 57 52 43 5 4 30234 590000 865000 1000 1300 28.6
310 91 86 71 5 4 32234 968000 1640000 1000 1300 35.6
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