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圆柱滚子轴承 圆柱滚子轴承

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NU2048-E-M1_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

240 mm

D

360 mm

B

72 mm

Cr

920000 N

Cor

1610000 N

Cur

191000 N

Reference speed

1360 rpm

Limiting speed

2950 rpm

Mounting dimensions

damin

252 Minimum diameter of shaft shoulder

rmin

3 Minimum chamfer size

damax

269 Maximum diameter of shaft shoulder

r1min

3 Minimum chamfer size

s

6 Axial displacement

dbmin

275 Minimum shaft shoulder

Damax

348 Maximum diameter of bearing block shoulder

E

334 Outer race diameter

F

270 Inner race diameter

D1min

322.8 Minimum shoulder diameter of outer ring

ramax

2.5 Maximum cavity radius

ra1max

2.5 Maximum cavity radius

Temperature range

Tmin

-30 °C Minimum operating temperature

Tmax

150 °C Maximum operating temperature
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