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ZRS seal system, realized by C.R. during the recent years, prevents outer agents, such as dust, wet and mill scale, to enter the inner part of the bearing, and at the same time it prevents the leakage of lubrication grease.

The thrust cover is manufactured in case-hardening steel as well.

The central pivot is made in low carbon C20/C45 steel, which guarantees high resistance and is highly suitable for welding.

Adjustable combined bearings with eccentric pin have the following technical characteristics:

The outer ring and the axial little roll are manufactured in case-hardening steel type 20CrMnTi.

This kind of steel guarantees a very good resistance to stress, and assures a very good resistance against crashes. The surface hardness can reach 60-2 HRC for both of them.

Inner ring and pin are manufactured in core-hardened 100 Cr6 steel. The total-hardening steel guarantees high resistance to wear and stress; both of them reach 60-2 HRC hardness value.

Technical Characteristics

Adjustable combined bearings with eccentric pin

Adjustable combined bearings with eccentric pin have the same characteristics as adjustable combined bearings.

In this case, the adjusting of the distance is made through the rotation of the whole axial part (pin and little roll) in the central pivot.

THE BEARINGS ARE IN ZRS EXECUTION

The adjusting of dimension “A” can be made through the rotation of the axial pivot.


* “JUMBO” EXECUTION

C.R. Ref.



400-0454

400-0455

400-0456

400-0458

400-0461

400-0462*

400-0463*

T

mm


42

48

54

59

69

80

108

Ca

KN


16

16

23

23

32

41

41

Coa

KN


25

25

36

36

50

72

72

Profile



2890

2867

2810

2811

2862

2891

2757

d

mm


30

35

40

45

60

60

60

H

mm


37,5

44

48

57

69

72,3

78,5

D

mm


62

70,1

77,7

88,4

107,7

123

149

B

mm


20

23

23

30

31

37

45

h min.

mm


30,5

36

37

44

55

56

58,5

A

mm


4

4

3,5

4

4

4,5

6

S

mm


20

20

26

26

30

34

34

r

mm


3

4

4

4

5

5

3

C

KN


31

45,5

48

68

81

110

151

Co

KN


35,5

51

56,8

72

95

132

192

1. ZRS seal ring

2. Support thrust ring

3. Axial part

4. Pivot

5. Outer ring

6. Cylindrical rollers

7. Inner ring

8. ZRS seal ring

C: Dynamic load

Co: Static load

Ca: Dynamic axial load

Coa: Static axial load

C.R. s.r.l. - 26845 Codogno (LODI) - ITALY - Via S. Pertini, 6/8 (Z.I.) - tel. +39 0377 437021 - fax +39 0377 437107 - p.iva 01183740198 |  info@crsrl.com