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圆柱滚子轴承 圆柱滚子轴承

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NU2252-E-TB-M1_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

260 mm

D

480 mm

B

130 mm

Cr

2180000 N

Cor

3350000 N

Cur

350000 N

Reference speed

780 rpm

Limiting speed

2060 rpm

Mounting dimensions

damin

280 Minimum diameter of shaft shoulder

rmin

5 Minimum chamfer size

damax

310 Maximum diameter of shaft shoulder

r1min

5 Minimum chamfer size

s

10.5 Axial displacement

dbmin

316 Minimum shaft shoulder

Damax

460 Maximum diameter of bearing block shoulder

E

433 Outer race diameter

F

313 Inner race diameter

D1min

409 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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