SKF 71921 CD/P4AL轴承,SKF 71921 CD/P4AL角接触球轴承-搜轴承SKF数据中心
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d - 105 mm

D - 145 mm

B - 20 mm

d1 - 117.3 mm

d2 - 117.3 mm

D1 - 132.7 mm

b - 2.3 mm

C1 - 10.9 mm

C2 - 3.9 mm

C3 - 3.2 mm

r1,2 - min. - 1.1 mm

r3,4 - min. - 0.6 mm

a - 26.8 mm

da - min. - 111 mm

db - min. - 111 mm

Da - max. - 139 mm

Db - max. - 141 mm

ra - max. - 1 mm

rb - max. - 0.6 mm

dn - 120.6 mm

Basic dynamic load rating - C - 61.8 kN

Basic static load rating - C0 - 69.5 kN

Fatigue load limit - Pu - 2.6 kN

Limiting speed for grease lubrication - 8500 r/min

Limiting speed for oil lubrication - 14000 mm/min

Ball - Dw - 12.7 mm

Ball - z - 27

Gref - 11.1 cm3

Calculation factor - f0 - 16.4

Preload class A - GA - 230 N

Preload class B - GB - 460 N

Preload class C - GC - 920 N

Preload class D - GD - 1840 N

Calculation factor - f - 1.25

Calculation factor - f1 - 1

Calculation factor - f2A - 1

Calculation factor - f2B - 1.04

Calculation factor - f2C - 1.09

Calculation factor - f2D - 1.15

Calculation factor - fHC - 1

Preload class A - 110 N/micron

Preload class B - 151 N/micron

Preload class C - 215 N/micron

Preload class D - 316 N/micron

Mass bearing - 0.82 kg

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Hot number:INA NK 65/25 TIMKEN 1987/1931-B TIMKEN 28995/28920 SKF 332167 Timken AR 10 65 90,4 CX 7306 C-UX NTN CRI-2818 PFI NB-105 Timken NKJ40/20 NSK 61832-2RS Nachi MF-137 McGill MR-30 SKF (Old No.) NK-32/20 American T-730 SKF 23x40x10 HMS5 V