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圆柱滚子轴承 圆柱滚子轴承

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NJ420-XL-M1_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

100 mm

D

250 mm

B

58 mm

Cr

550000 N

Cor

530000 N

Cur

88000 N

Reference speed

2950 rpm

Limiting speed

5000 rpm

Mounting dimensions

damin

120 Minimum diameter of shaft shoulder

rmin

4 Minimum chamfer size

damax

137 Maximum diameter of shaft shoulder

r1min

4 Minimum chamfer size

s

5.7 Axial displacement

Damax

230 Maximum diameter of bearing block shoulder

E

211 Outer race diameter

F

139 Inner race diameter

D1min

198.2 Minimum shoulder diameter of outer ring

dcmin

156 Minimum shaft shoulder

d1

152.8 Maximum flange diameter of inner ring

ramax

3 Maximum cavity radius

Temperature range

Tmin

-30 °C Minimum operating temperature

Tmax

150 °C Maximum operating temperature

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