Plain Spherical Bearing

Plain Spherical Bearing

The plain spherical bearing consists of a double-sided sealed outer spherical ball bearing and a cast (or steel stamped) bearing housing.

Description

The plain spherical bearing consists of a double-sided sealed outer spherical ball bearing and a cast (or steel stamped) bearing housing. The internal structure of the bearing is the same as that of the deep groove ball bearing, but the inner ring of this bearing is wider than the outer ring. The outer ring has a spherical outer surface and is self-aligning with the concave spherical surface of the bearing housing. Usually, there is a gap between the inner hole of the bearing and the shaft, and the inner ring of the bearing is fixed on the shaft by a top wire, an eccentric sleeve or a clamping sleeve, and rotates together with the shaft.

The bearing has compact structure, convenient loading and unloading, perfect sealing, and is suitable for simple support, and is commonly used in mining, metallurgy, agriculture, chemical, textile, printing and dyeing, conveying machinery and the like.

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Specifications:

Desc.

B
+0.065
-0.013

C REF.

D
+0
-0.018

E REF.

H±0.13

O REF.

W±0.13

a° Misalign
Angle

Max Radial
Static Load
(Newtons)

Approx.
Weight
(Grams)

COMAT-M3

3

0.5

12

7.93

4.50

5.19

6

13.5

10700

4

COMAT-M6

5

0.5

16

11.10

6.00

7.68

8

12.5

20300

9

COMAT-M6

6

0.5

18

12.70

6.75

8.93

9

12.5

26300

13

COMAT-M8

8

0.8

22

15.88

9.00

10.35

12

14.0

43600

24

COMAT-M10

10

0.8

26

19.05

10.50

12.88

14

13.5

61400

40

COMAT-M12

12

0.8

30

22.23

12.00

15.39

16

13.0

82200

80

COMAT-M14

14

1.0

34

25.40

13.50

16.86

19

16.0

106000

110

COMAT-M16

16

1.0

38

28.58

15.00

19.34

21

15.0

132700

130

COMAT-M18

18

1.0

42

31.75

16.50

21.89

23

15.0

162500

170

COMAT-M20

20

1.0

46

34.93

18.00

24.35

25

14.5

195600

230

COMAT-M22

22

1.5

50

38.10

20.00

25.84

28

15.0

236600

280

COMAT-M25

25

1.5

56

42.86

22.00

29.60

31

15.0

293600

390

COMAT-M30

30

1.5

66

50.80

25.00

34.81

37

17.0

39700

610

Note:

This type of plain spherical bearing does not allow the shaft to be tilted relative to the housing, creating additional axial forces under radial load. The axial clearance of this kind of bearing has a great relationship with whether the bearing can work normally. When the axial clearance is too small, the temperature rise is high; when the axial clearance is large, the bearing is easily damaged. Therefore, special attention should be paid to adjusting the axial clearance of the bearing during installation and operation. If necessary, pre-interference can be installed to increase the rigidity of the bearing.

Sealing: The floating sealing ring made of insulating and wear-resistant material on both sides of the bearing is used as the shaft hole seal. It is fixed on the shaft by spring pressure and can float with the shaft; the floating sealing ring is easy to wear and should be replaced regularly.


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