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圆柱滚子轴承 圆柱滚子轴承

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NNU4960-S-M-SP_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

300 mm

D

420 mm

B

118 mm

Cr

1040000 N

Cor

2380000 N

Cur

265000 N

Grease lubrication speed

1740 rpm

Oil lubrication speed

2040 rpm

Mounting dimensions

da

336 Minimum diameter of shaft shoulder

r1min

3 Minimum chamfer dimension

H

12 diameter of housing shoulder tolerance

F

339 Inner race diameter

Da

389 Maximum diameter of bearing block shoulder

ns

17.7 Slot width of lubricating groove

ds

9.5 Lubrication hole diameter

H

12 diameter of housing shoulder tolerance

s

6.3 Axial displacement

ra1max

2.5 Maximum cavity radius

Temperature range

Tmin

-30 °C Minimum operating temperature

Tmax

150 °C Maximum operating temperature
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