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Products

One way Clutch Bearing

Product Details


CSK series


All the CSK versions are equipped with “formchromed” sprags. This process increases several times the overrunning life time. Torque transmission is ensured by a press fit assembly into a rigid outer housing with N6 tolerance, and onto a shaft with n6 tolerance. The initial bearing radial clearance is set at C5, and is reduced if using the press fit as specified.


Please contact us when either the ambient or the operating temperature is not within the range  5°C to  60°C. CSK..2RS is 5 mm wider but is equiped with lip seals to be water splash resistant.


Types CSK..P and CSK..PP are sprag type freewheels integrated into 62.. series ball bearings (except size 40). They are bearing supported, delivered grease lubricated and protected against dust of more than 0,3 mm.


The use of additional “nylos” type seals is recommended especially when the working temperature exceeds 50°C. Oil bath lubrication is also possible.


In addition to the basic CSK model, type CSK..P features a keyway on the inner race. For this reason it can be keyed to a shaft to k6 tolerance. The outer race must still be pressed into a rigid housing to N6 tolerance.


CSK..PP features a keyway on both the inner and outer race. The recommended mounting tolerances are h6 on the shaft and H6 in a rigid housing. Please contact us when either the ambient or the operating temperature is not within the range  5°C to  60°C.




Type

Size mm

Drag torque

Weight(KG)

NTL

GERMANY

JAPAN

d(inside dimension)

D(outside dimension)

B(thickness)

Tkn(N.m)

CSK8

CSK8

 

8*

22

9

2.5

0.015

CSK12

CSK12

 

12

32

10

7.5

0.04

CSK15

CSK15

BB15

15

35

11

13.5

0.05

CSK17

CSK17

BB17

17

40

12

24.5

0.07

CSK20

CSK20

BB20

20

47

14

40

0.11

CSK25

CSK25

BB25

25

52

15

68

0.14

CSK30

CSK30

BB30

30

62

16

110

0.21

CSK35

CSK35

BB35

35

72

17

140

0.3

CSK40

CSK40

BB40

40

80

22

260

0.5

CSK8-2RS

CSK8-2RS

 

8

22

9

2.5

0.015

CSK12-2RS

CSK12-2RS

 

12

32

14

7.5

0.05

CSK15-2RS

CSK15-2RS

BB15-2GD

15

35

16

13.5

0.07

CSK17-2RS

CSK17-2RS

BB17-2GD

17

40

17

24.5

0.09

CSK20-2RS

CSK20-2RS

BB20-2GD

20

47

19

40

0.145

CSK25-2RS

CSK25-2RS

BB25-2GD

25

52

20

68

0.175

CSK30-2RS

CSK30-2RS

BB30-2GD

30

62

21

110

0.27

CSK35-2RS

CSK35-2RS

BB35-2GD

35

72

22

140

0.4

CSK40-2RS

CSK40-2RS

BB40-2GD

40

80

27

260

0.6

ASNU series


Type ASNU is a roller type freewheel non-bearing supported. Bearings are required to support axial and radial loads. Lubrication and sealing must also be provided by the installation. Nominal outer diameter is the same as a series 63...Ball bearing.


A typical arrangement is to install this type alongside a bearing within the same location tolerances, as shown on the following page. The inner race is keyed to the shaft.


The outer race has positive n6 tolerance, to give a press fit in a H7 housing. Additional side notches in the outer race provide for positive torque transmission.


If the housing is to K6 tolerance, use of the notches is not necessary, but the housing must be strong enough to not expand after assembly. This design can accept an axial misalignment of inner and uter race of ± S/2.


Model Number

 

Overrunning Speeds

 

 

 

 

 

 

 

 

 

Weight

Dragtorque

dH7

TKN1)

nimax2)

namax3)

Dn6

D5

L

b

t

s

e

f

 

TR

[mm]

[Nm]

[min-1]

[min-1]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[kg]

[Ncm]

ASNU8 

12 

3300 

5000 

35 

28 

13 

1.4

2.4

0.6

0.3

0.07

1.6

ASNU12 

12 

3300 

5000 

35 

28 

13 

1.4

2.4

0.6

0.3

0.06

1.6

ASNU15 

30 

2400 

3600 

42 

37 

18 

1.8

2.4

0.8

0.3

0.11

1.9

ASNU17 

49 

2300 

3400 

47 

40 

19 

2.3

2.4

1.2

0.8

0.15

1.9

ASNU20 

78 

2100 

3100 

52 

42 

21 

2.3

2.4

1.2

0.8

0.19

1.9

ASNU25 

125 

1700 

2600 

62 

51 

24 

2.8

2.4

1.2

0.8

0.38

5.6

ASNU30 

255 

1400 

2200 

72 

60 

27 

10 

2.5

2.4

1.8

0.54

14 

ASNU35 

383 

1200 

1900 

80 

70 

31 

12 

3.5

2.4

1.8

0.74

16 

ASNU40 

538 

1100 

1700 

90 

78 

33 

12 

4.1

2.5

1.8

0.92

38 

ASNU45 

780 

1000 

1600 

100 

85 

36 

14 

4.6

2.5

1.8

1.31

43 

ASNU50 

1013 

850 

1350 

110 

92 

40 

14 

5.6

2.5

1.8

1.74

55 

ASNU60 

1825 

750 

1050 

130 

110 

46 

18 

5.5

3.6

2.6

1.5

2.77

110 

ASNU70 

2300 

600 

950 

150 

125 

51 

20 

6.9

3.6

2.6

1.5

4.16

140 

ASNU80 

3275 

550 

850 

170 

140 

58 

20 

7.5

3.6

2.6

1.5

6.09

180 

ASNU90 

5325 

500 

750 

190 

160 

64 

20 

8

3.6

2.6

8.2

230 

ASNU100 

7250 

450 

680 

215 

175 

73 

24 

8.5

3.6

2.6

12.6

380 

ASNU120 

13500 

370 

550 

260 

215 

86 

28 

10 

3.6

2.6

2.5

22 

650 

ASNU150 

26625 

300 

460 

320 

260 

108 

32 

12 

3.6

3.6

2.5

42 

1000 

ASNU200 

44500 

230 

350 

420 

350 

138 

45 

16 

7.6

3.6

93 

2000 

DC series


Type DC is a sprag type freewheel cage without inner or outer races.


It must be installed in a design providing races, bearing support for axial and radial loads, lubrication and sealing. The DC type version -N accepts all types of lubricants currently used in power transmissions including gear oils with EP additives.


The sprag space tolerance must not be exceeded. Inner and outer races must both have a minimum plain width "e", without any recess, to ensure the freewheel functions correctly as shown on following pages


Alternatively, races can be made in case hardened steel shafts, or housings, to the specification below.


Surface hardness of the finished part should be HRC 60 to 62, for a depth of 0,6 mm minimum.


Core hardness to be HRC35 to 45. Surface roughness not to exceed 22CLA. Maximum taper between races : 0,007 mm for 25 mm width.

Type

Drag torque

Size(mm)

Number of clips

Tkn(NM)

a

c

sprag space

e

d

b

DC2222G

50

22.225

38.885

8.33

10

50

17

 

DC2776

95

27.762

44.422

8.33

13.5

58

21

 

DC3034

99

30.34

47

8.33

13.5

62

23

 

DC3175(3C)

127

31.75

48.41

8.33

13.5

63

24

3

DC3809A

220

38.092

54.752

8.33

16

71

29

 

DC4127(3C)

179

41.275

57.935

8.33

13.5

75

32

3

DC4445A

290

44.45

61.11

8.33

16

79

34

 

DC4972(4C)

245

49.721

66.381

8.33

13.5

86

38

4

DC5476A

420

54.765

71.425

8.33

16

92

42

 

DC5476A(4C)

420

54.765

71.425

8.33

16

92

42

4

DC5476B(4C)

615

54.765

71.425

8.33

21

92

42

4

DC5476C(4C)

792

54.765

71.425

8.33

25.4

92

42

4

DC5776A

483

57.76

74.42

8.33

16

98

44

 

DC6334B

645

63.34

80

8.33

21

104

50

 

DC7221(5C)

540

72.217

88.877

8.33

13.5

115

56

5

DC7221B

1023

72.217

88.877

8.33

21

115

56

 

DC7221B(5C)

1023

72.217

88.877

8.33

21

115

56

5

DC7969C(5C)

1630

79.698

96.358

8.33

25.4

124

61

5

DC8334C

1645

83.34

100

8.33

25.4

132

65

 

DC8729A

1000

87.29

103.96

8.33

16

134

67

 

DC10323A(3C) *

1290

103.231 **

119.891

8.33

16

155

80

3

DC12334C *

3840

123.34 **

140

8.33

25.4

184

96

 

DC12388C(11C)

3900

123.881

142.88

9.5

25.4

196

96

11

FE series


FE series Freewheel-clutches transmit or support torque moment by friction contact in  one  direction and permit idling in the opposite direction.


USED AS:


1.Indexing elements to change from oscillating to intermittent rotary motion.


2.Backstops to prevent self reversing due to load condition when the machine is not activated.


3.Overrunning clutches to maintain driven unit activated even during slowdown, or in the case of


two speed operation (by independent motors) to switch to the higher speed by passing the slower.


LUBRICATION


Lubrication is especially important to obtain maximum life of freewheel clutches.


Good lubrication decreases drag. Please refer to our Lubrication Selection Table for proper


selection.


Clutches (except the sealed Clutches of series FND, FPD, FK 62...-RS, FK 62...-2RS, FKN...-RS , and FKN...-2RS) are shipped rust protected not lubricated.


Dimensions   

FE 400

FE 400 Z

FE 400 Z2

Idling speed Clutch

[mm]

dL

DL

Part Number

Torque 

Part Number

Torque M 

Part 

Torque 

nmax [RPM]

M  

[N.m]

Number

M  

[N.m]

 

 

[N.m]

2

10

 

 

 

 

FE 410 Z2

0.3

10,000

4

12

 

 

FE 412 Z

3

FE 412 Z2

1.8

10,000

5

13

 

 

 

 

FE 413 Z2

2.9

9,000

6

14

 

 

FE 414 Z

7

FE 414 Z2

2.6

8,500

8

16

 

 

FE 416 Z

12

FE 416 Z2

7.6

7,500

14

22

FE 422

48

FE 422 Z

44

FE 422 Z2

21

5,300

15

23

FE 423

55

FE 423 Z

48

FE 423 Z2

24

5,200

17

25

FE 425

68

FE 425 Z

58

FE 425 Z2

30

4,700

19

27

FE 427

80

FE 427 Z

66

FE 427 Z2

36

4,400

20

28

FE 428

87

FE 428 Z

75

FE 428 Z2

39

4,200

22

30

FE 430

101

FE 430 Z

87

FE 430 Z2

46

4,000

24

32

FE 432

116

FE 432 Z

97

FE 432 Z2

52

3,700

25

33

FE 433

124

FE 433 Z

107

FE 433 Z2

56

3,600

27

35

FE 435

141

FE 435 Z

121

FE 435 Z2

64

3,400

29

37

FE 437

158

FE 437 Z

137

FE 437 Z2

71

3,200

30

38

FE 438

168

FE 438 Z

144

FE 438 Z2

76

3,100

34

42

FE 442

207

FE 442 Z

178

FE 442 Z2

93

2,800

35

43

FE 443

217

FE 443 Z

187

FE 443 Z2

98

2,700

40

48

FE 448

272

FE 448 Z

235

FE 448 Z2

122

2,500

45

53

FE 453

333

FE 453 Z

281

FE 453 Z2

146

2,200

50

58

FE 458

400

FE 458 Z

345

FE 458 Z2

178

2,000

51

59

FE 459

414

FE 459 Z

357

 

 

 

55

63

FE 463

472

FE 463 Z

407

FE 463 Z2

202

1,900

60

68

FE 468

550

FE 468 Z

474

FE 468 Z2

243

1,750

62

70

FE 470

583

FE 470 Z

502

 

 

1,700

65

73

FE 473

633

FE 473 Z

545

 

 

1,600

70

78

FE 478

722

FE 478 Z

622

 

 

1,500

80

88

FE 488

914

FE 488 Z

788

 

 

1,300


FWD series


BRB type

Type

Inner race

Outer race

Wmin

Tkn

Weight

 

D  0.008

DO ±0.013 (mm)

W

(Kgf-m)

(g)

-0.005

(mm)

(mm)

 

FWD331608BRB

39.627

56.294

13

27

73

FWD331808BRB

45.665

62.332

13.3

35

82

FWD332008BRB

51.71

68.377

13.3

45

91

FWD332211BRB

57.76

74.427

16.3

78

13

BRS type


Type

Inner race

Outer race

Wmin

Tkn

Weight

 

D  0.008

DO ±0.013 (mm)

W

(Kgf-m)

(g)

-0.005

(mm)

(mm)

 

FWD331608BRS

39.627

56.294

13

27

77

FWD331808BRS

45.665

62.332

13.3

35

87

FWD332008BRS

51.71

68.377

13.3

45

97

FWD332211BRS

57.76

74.427

16.3

78

134

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