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Backstops are used extensively on pumps used in the primary and secondary cooling systems of power generating equipment.
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Telephone:86-519-85858018
Linkman:Ellen Zhang
Mobile phone:86-18068536660
FAX:86-519 85858018
E-mail:ellen@chinasuma.com
address:DONGHUA INDUSTRY PARK, WUJIN DISTRICT, CHANGZHOU, JIANGSU PROVINCE, CHINA PR.
            
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DC Sprag Type Clutch Freewheel Cage
  • https://www.chinasuma.com/uploadfiles/103.224.250.119/webid106/pc_water/201611/147814113222.jpg
introduction

DC sprag type freewheel cage 


Feature


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 the power transmis-sion equipement.

 

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.


Size


Overrunning speeds



Number

of clips 

 

Number

of sprags 

Weight


TKN1)

nimax2)

namax3)

Øa+0.008
    -0.005

Øc± 0.013

emin

Ødmin

Øbmax

[Nm]

[min -1]

[min -1]

[mm]

[mm]

[mm]

[mm]

[mm]



[kg]

DC2222G-N

63 

8600 

4300 

22.225

38.885

10

50 

15 

12 

0.03

DC2776-N

119 

6900 

3400 

27.762

44.422

13.5

58 

18 

14 

0.055

DC3034-N

124 

6300 

3100 

30.34

47

13.5

62 

20 

14 

0.06

DC3175(3C)-N

159 

6000 

3000 

31.75

48.41

13.5

63 

21 

16 

0.06

DC3809A-N

275 

5000 

2500 

38.092

54.752

16

71 

25 

18 

0.085

DC4127(3C)-N

224 

4600 

2300 

41.275

57.935

13.5

75 

27 

18 

0.09

DC4445A-N

363 

4300 

2100 

44.45

61.11

16

79 

29 

20 

0.095

DC4972(4C)-N

306 

3800 

1900 

49.721

66.381

13.5

86 

33 

22 

0.1

DC5476A-N

525 

3500 

1700 

54.765

71.425

16

92 

36 

24 

0.11

DC5476A(4C)-N

525 

3500 

1700 

54.765

71.425

16

92 

36 

24 

0.13

DC5476B(4C)-N

769 

3500 

1700 

54.765

71.425

21

92 

36 

24 

0.18

DC5476C(4C)-N

990 

3500 

1700 

54.765

71.425

25.4

92 

36 

24 

0.2

DC5776A-N

604 

3300 

1600 

57.76

74.42

16

98 

38 

26 

0.11

DC6334B-N

806 

3000 

1500 

63.34

80

21

104 

42 

26 

0.175

DC7221(5C)-N

675 

2600 

1300 

72.217

88.877

13.5

115 

48 

30 

0.14

DC7221B-N

1279 

2600 

1300 

72.217

88.877

21

115 

48 

30 

0.185

DC7221B(5C)-N

1279 

2600 

1300 

72.217

88.877

21

115 

48 

30 

0.21

DC7969C(5C)-N

2038 

2400 

1200 

79.698

96.358

25.4

124 

53 

34 

0.28

DC8334C-N

2055 

2300 

1100 

83.34

100.000 

25.4

132 

55 

34 

0.27

DC8729A-N

1250 

2200 

1100 

87.29

103.96

16

134 

58 

34 

0.165

DC10323A(5C)*-N

1612 

1800 

900 

103.231**

119.891

16

155 

68 

40 

0.205

DC12334C*-N

4800 

1500 

750 

123.340**

140.000 

25.4

184 

80 

50 

0.4

DC12388C(11C)

4875 

1500 

750 

123.881

142.88

25.4

186 

80 

11 

44 

0.4

NOTES

1) T max = 2 × T KN
2) Inner race overruns
3) Outer race overruns
*) The inner cage centering flange is on the opposite side
**) Extension of tolerance to ± 0,013 permissible

MOUNTING EXAMPLE

Product Display


APPLICATIONS


FAQ:

Q: Why do we choose your company?

A: We always insist quality first. We have our bearing factory, therefore we have advantage in quality control and price of one way clutch bearing.

 

Q:What is the delivery time?

A: Most of the bearing we have stock. For small quantity, we will arrange delivery within 15 days.

 

Q: What is your payment term?

A: Our payment term include L/C, T/T, Western Union, Paypal etc.

 

Q: Can you send bearing samples first?

A: Yes, we can send bearing samples of one way clutch bearing to check quality first.

If you have any needs,pls contact me at any time!


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Telephone: 86-519-85858018    Mobile phone: 86-18068536660    Fax: 86-519 85858018
E-mail: ellen@chinasuma.com
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