Steel Sector,Heavy Industry IndustrialSector Forklifts

Straightening, Sheet flattening

machines, Rolling mills and

Conveyor belts

Automatisms,

Paletizing and

Heavy loads

Special products,

Big size and high capacity

Bearings

Mast Roller for forklifts,

Sheave chain and

Roller side

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UK
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Technical Characteristics

The main characteristic of this series of rollers is the high thickness of the outer ring, which is suitable to bear specific high pressures and the impacts that characterize the use of these bearings (ex. cam followers).

It differs from NUKR series as far as the characteristics of the seals are concerned, as they are of ZRS type (steel and rubber). Furthermore, a chamber for the lubrication grease is foreseen between the rolling raceways of the outer ring.


Other important features of these bearings are:

Outer ring with double border of the rollers obtained entirely and accurately grinded to allow the roller to bear loads with axial components. The ring is usually cambered on the outer part, in order to improve working condition with heavy loads and to prevent the concentration of load onto side bands of the raceway. On request, C.R. can supply rollers with cylindrical outer surface.

Pivot with threaded shank, one guide border of rollers obtained entirely and tempered rolling raceway. On the front part, a seat for hexagon wrench or for corkscrew (on request) are foreseen.


The ZRS seals forced on the outer ring guarantee an extremely efficient protection system.

Full complement of grinded flat head cylindrical rollers.

Lubrication channels and holes in the pivot.

Tolerance of execution according to normal class, possibility of special execution according to class P5 (DIN 620).


PWKR

Cam follower

1. Obturación ZRS

2. Tapa de apoyo

3. Eje

4. Anillo exterior

5. Rodillos cilíndricos

6. Tapa de apoyo

Technical Drawing

d h7

mm


16

18

20

20

24

24

30

30

D

mm


35

40

47

52

62

72

80

90

r min.

mm


0,6

1

1

1

1

1,1

1,1

1,1

C

mm


18

20

24

24

28

28

35

35

B

mm


52

58

66

66

80

80

100

100

B2

mm


7,8

8

9

9

11

11

15

15

g

mm


17

19

21

21

25

25

32

32

M

mm


3

3

4

4

4

4

4

4

C1

mm


0,8

0,8

0,8

0,8

1,3

1,3

1

1

B1

mm


32,5

36,5

40,5

40,5

49,5

49,5

63

63

G

mm


M16x1,5

M18x1,5

M20x1,5

M20x1,5

M24x1,5

M24x1,5

M30x1,5

M30x1,5

d2

mm


20

22

27

31

38

44

47

47

Cod Ref.



PWKR 35 2RS

PWKR 40 2RS

PWKR 47 2RS

PWKR 52 2RS

PWKR 62 2RS

PWKR 72 2RS

PWKR 80 2RS

PWKR 90 2RS

CH

mm


8

8

10

10

14

14

14

14

Cw

KN


11,6

13,2

23,2

24,2

35

38,5

56

63

Cow

KN


11,3

13,8

25,5

28

39,5

46,5

70

82

Max speed

RPM min-1


6000

5000

3800

3800

2200

2200

1800

1800

Nut locking

Couple (Nm)


58

87

120

120

220

220

450

450

Cw : Dynamic load

COW : Static load

Pressure

greaser

NIP A2x7,5

NIP A3x9,5

PWKR 35 2RS - PWKR 40 2RS - PWKR 47 2RS - PWKR 52 2RS

PWKR 62 2RS - PWKR 72 2RS - PWKR 80 2RS - PWKR 90 2RS

Adaptor for

central lubrication

AP8

AP10

AP14

PWKR 35 2RS - PWKR 40 2RS

PWKR 47 2RS - PWKR 52 2RS

PWKR 62 2RS - PWKR 72 2RS - PWKR 80 2RS - PWKR 90 2RS

C.E.R. Centro Europeo Ricambi, S.L. - Poligono Industrial Can Singla. - C/ Can Singla s/n  - E-08640 Olesa de Montserrat  - Barcelona  - España - Tel. +34 937 785 142  - Fax. +34 937 785 966