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球面滚子轴承 球面滚子轴承

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249/750-B-K30-MB_Spherical Roller Bearings

Main Dimensions & Performance Data

d

750 mm

D

1000 mm

B

250 mm

Cr

7200000 N

Cor

18900000 N

Cur

1200000 N

Reference speed

143 rpm

Limiting speed

510 rpm

Mounting dimensions

da min

773 mm Shaft shoulder minimum diameter

r min

6 mm Minimum chamfer size

D1

921.7 mm Outer ring inner diameter

Da max

977 mm Maximum diameter of housing shoulder

ra max

5 mm Maximum pocket radius

ds

12.5 mm Lubrication hole diameter ,

ns

23.5 mm Lubrication groove width

Temperature range

T min

-30 °C Minimum operating temperature

T max

200 °C Maximum operating temperature

Calculation coefficient

e

0.22 Fa/Fr corresponds to different X and Y coefficients

Y1

3.1 Axial dynamic load factor

Y2

4.62 Axial dynamic load factor

Y0

3.03 Axial static load factor

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