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球面滚子轴承 球面滚子轴承

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248/1250-B-MB_Spherical Roller Bearings

Main Dimensions & Performance Data

d

1250 mm

D

1500 mm

B

250 mm

Cr

9000000 N

Cor

30500000 N

Cur

1260000 N

Reference speed

76 rpm

Limiting speed

320 rpm

Mounting dimensions

da min

1,273 mm Shaft shoulder minimum diameter

r min

6 mm Minimum chamfer size

D1

1,423.5 mm Outer ring inner diameter

Da max

1,477 mm Maximum diameter of housing shoulder

ra max

5 mm Maximum pocket radius

ds

9.5 mm Lubrication hole diameter ,

ns

17.7 mm Lubrication groove width

Temperature range

T min

-30 °C Minimum operating temperature

T max

200 °C Maximum operating temperature

Calculation coefficient

e

0.14 Fa/Fr corresponds to different X and Y coefficients

Y1

4.67 Axial dynamic load factor

Y2

6.96 Axial dynamic load factor

Y0

4.57 Axial static load factor
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