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圆柱滚子轴承 圆柱滚子轴承

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NU256-E-TB-M1_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

280 mm

D

500 mm

B

80 mm

Cr

1400000 N

Cor

2020000 N

Cur

151000 N

Reference speed

1020 rpm

Limiting speed

2020 rpm

Mounting dimensions

damin

300 Minimum diameter of shaft shoulder

rmin

5 Minimum chamfer size

damax

334 Maximum diameter of shaft shoulder

r1min

5 Minimum chamfer size

s

6.3 Axial displacement

dbmin

340 Minimum shaft shoulder

Damax

480 Maximum diameter of bearing block shoulder

E

449 Outer race diameter

F

337 Inner race diameter

D1min

426.6 Minimum shoulder diameter of outer ring

ramax

4 Maximum cavity radius

ra1max

4 Maximum cavity radius

Temperature range

Tmin

-30 °C Minimum operating temperature

Tmax

150 °C Maximum operating temperature
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