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圆柱滚子轴承 圆柱滚子轴承

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NU238-E-M1_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

190 mm

D

340 mm

B

55 mm

Cr

680000 N

Cor

930000 N

Cur

83000 N

Reference speed

1720 rpm

Limiting speed

3050 rpm

Mounting dimensions

damin

207 Minimum diameter of shaft shoulder

rmin

4 Minimum chamfer size

damax

227 Maximum diameter of shaft shoulder

r1min

4 Minimum chamfer size

s

4.7 Axial displacement

dbmin

234 Minimum shaft shoulder

Damax

323 Maximum diameter of bearing block shoulder

E

306 Outer race diameter

F

230 Inner race diameter

D1min

295 Minimum shoulder diameter of outer ring

ramax

3 Maximum cavity radius

ra1max

3 Maximum cavity radius

Temperature range

Tmin

-30 °C Minimum operating temperature

Tmax

150 °C Maximum operating temperature

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