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圆柱滚子轴承 圆柱滚子轴承

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NU312-E-XL-TVP2_Cylindrical Roller Bearings

Main Dimensions & Performance Data

d

60 mm

D

130 mm

B

31 mm

Cr

177000 N

Cor

157000 N

Cur

21900 N

Reference speed

5200 rpm

Limiting speed

7400 rpm

Mounting dimensions

damin

72 Minimum diameter of shaft shoulder

rmin

2.1 Minimum chamfer size

damax

75 Maximum diameter of shaft shoulder

r1min

2.1 Minimum chamfer size

s

1.8 Axial displacement

dbmin

79 Minimum shaft shoulder

Damax

118 Maximum diameter of bearing block shoulder

E

115 Outer race diameter

F

77 Inner race diameter

D1min

109.6 Minimum shoulder diameter of outer ring

ramax

2.1 Maximum cavity radius

ra1max

2.1 Maximum cavity radius

Temperature range

Tmin

-30 °C Minimum operating temperature

Tmax

120 °C Maximum operating temperature

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