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圆柱滚子轴承 圆柱滚子轴承

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NU2256-E-TB-M1_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

280 mm

D

500 mm

B

130 mm

Cr

2270000 N

Cor

3600000 N

Cur

370000 N

Reference speed

720 rpm

Limiting speed

1980 rpm

Mounting dimensions

damin

300 Minimum diameter of shaft shoulder

rmin

5 Minimum chamfer size

damax

330 Maximum diameter of shaft shoulder

r1min

5 Minimum chamfer size

s

10.5 Axial displacement

dbmin

336 Minimum shaft shoulder

Damax

480 Maximum diameter of bearing block shoulder

E

453 Outer race diameter

F

333 Inner race diameter

D1min

429 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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