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滚针轴承 滚针轴承

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NA4920-XL_Needle Roller Bearings

Main Dimensions & Performance Data

d

100 mm

D

140 mm

B

40 mm

Cr

144000 N

Cor

270000 N

Cur

46000 N

Reference speed

2550 rpm

Limiting speed

4000 rpm

Mounting dimensions

F

115 mm Inner ring raceway diameter

r min

1.1 mm Minimum chamfer size

s

2 mm Axial displacement

Temperature range

T min

-30 °C Minimum operating temperature

T max

120 °C Maximum operating temperature

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