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圆柱滚子轴承 圆柱滚子轴承

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NJ348-E-TB-M1_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

240 mm

D

500 mm

B

95 mm

Cr

1720000 N

Cor

2280000 N

Cur

238000 N

Reference speed

1000 rpm

Limiting speed

1980 rpm

Mounting dimensions

damin

260 Minimum diameter of shaft shoulder

rmin

5 Minimum chamfer size

damax

303 Maximum diameter of shaft shoulder

r1min

5 Minimum chamfer size

s

7.4 Axial displacement

Damax

480 Maximum diameter of bearing block shoulder

E

442 Outer race diameter

F

306 Inner race diameter

D1min

414.8 Minimum shoulder diameter of outer ring

dcmin

335 Minimum shaft shoulder

d1

333.2 Maximum flange diameter of inner ring

ramax

4 Maximum cavity radius

Temperature range

Tmin

-30 °C Minimum operating temperature

Tmax

150 °C Maximum operating temperature

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