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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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GFRN Backstop Clutch One Way Clutch
  • https://www.chinasuma.com/uploadfiles/103.224.250.119/webid106/pc_water/201611/147815557310.jpg
introduction

GFRN Backstop Clutch One Way Clutch

Feature

Types GFR,GFRN are roller type freewheels. These units are part of the Stieber modular system. They are bearing supported, using two 160.. series bearings, and require oil lubrication. These units may be used in designs providing oil lubrication and sealing as on the example overleaf. The bearings must not be axially stressed.

Typically, types GFR,GFRN are used with the F series covers that are designed to transmit torque, and provide oil lubrication and sealing. Usually these covers are used in pairs according to combinations shown on the following pages. The outer race of the GFR model is plain to receive and center any component bored to H7 tolerance.

Torque is transmitted by bolts through the cover plate in this case. Types GFR, GFRN are identical except that type GFRN has a keyway on the outside diameter to transmit the torque. Two paper seals are delivered with each unit to be placed between the outer race and cover plates.


 

Type

Size

 

 

Overrunning speeds

 

 

 

 

Weight

 

GFR
GFRN

dH7

TKN1)

nimax2)

namax3)

Dh7

1

L

 

 

[mm]

[Nm]

[min-1]

[min-1]

[mm]

[mm]

[mm]

[kg]

12*

55

4000

7200

62

42

20

0.5

15

125

3600

6500

68

52

28

0.8

20

181

2700

5600

75

57

34

1

25

288

2100

4500

90

60

35

1.5

30

500

1700

4100

100

68

43

2.2

35

725

1550

3800

110

74

45

3

40

1025

1150

3400

125

86

53

4.6

45

1125

1000

3200

130

86

53

4.7

50

2125

800

2800

150

94

64

7.2

55

2625

750

2650

160

104

66

8.6

60

3500

650

2450

170

114

78

10.5

70

5750

550

2150

190

134

95

13.5

80

8500

500

1900

210

144

100

18.2

90

14500

450

1700

230

158

115

28.5

100

20000

350

1450

270

182

120

42.5

130

31250

250

1250

310

212

152

65

150

70000

200

980

400

246

180

138

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Tag:clutch bearing,one-way clutch
Telephone: 86-519-85858018    Mobile phone: 86-18068536660    Fax: 86-519 85858018
E-mail: ellen@chinasuma.com
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