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圆柱滚子轴承 圆柱滚子轴承

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NU421-XL-M1_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

105 mm

D

260 mm

B

60 mm

Cr

610000 N

Cor

590000 N

Cur

71000 N

Reference speed

2750 rpm

Limiting speed

4750 rpm

Mounting dimensions

damin

125 Minimum diameter of shaft shoulder

rmin

4 Minimum chamfer size

damax

143 Maximum diameter of shaft shoulder

r1min

4 Minimum chamfer size

s

5.7 Axial displacement

dbmin

147 Minimum shaft shoulder

Damax

240 Maximum diameter of bearing block shoulder

E

220.5 Outer race diameter

F

144.5 Inner race diameter

D1min

207.4 Minimum shoulder diameter of outer ring

ramax

3 Maximum cavity radius

ra1max

3 Maximum cavity radius

Temperature range

Tmin

-30 °C Minimum operating temperature

Tmax

150 °C Maximum operating temperature

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