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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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FSO750-FSO1027 Sprag Backstop Clutch
  • FSO750-FSO1027 Sprag Backstop Clutch

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introduction

Backstop (Overrunning clutch)FSO750-1027

Feature

Types FS, FSO, and HPI 750 to 1027 are sprag type freewheels self-contained, sealed and bearing supported, using two ball bearings.


Units are delivered oil or grease lubricated according to the type. It is a Formsprag USA design that uses tall sprags with multi-radius active surfaces. Designed specially for large size freewheels to compensate for any eccentricity due to bearing wear. Types FS and HPI are oil lubricated and use standard shaft lip seals. Type FSO is grease lubricated and equipped with special grease seals.


Type HPI is specially designed for high speed indexing applications. Each of the different models show a range of standard metric bore diameters. We can supply any bore size between the minimum and maximum specified in the table, including imperial sizes.

Type

Size

                                                                  DIMENSIONS 










FSO
FS
HPI


dH7-bxh

d4)

A

B5)

C

D

E

F

G

z

J

K

L

P

f



min-max


-0.05













[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]

[mm]



[mm]

[inch]

[mm]

[mm]


65-18x11
















70-20x12















750

75-20x12

57–87

152.4

222.25

149.2

31.7

1.6

107.74

177.8

8*

M12

25

1/2-20

49.2

1.6


80-22x14
















85-22x14
















80-22x14















800

90-25x14

66–112

152.4

254

149.2

31.7

1.6

139.7

227

8

M12

25

1/2-20

49.2

1.6


100-28x16
















110-28x16
















100-28x16















900

110-28x16

92–138

161.9

304.8

158.7

34.9

1.6

161.92

247.65

10

M16

32

1/2-20

54

1.6


120-32x18
















130-32x18
















130-32x18















1027

150-36x20

125–177

168.3

381

165.1

34.9

3.2

228.6

298.45

12

M16

32

1/2-20

54

3.2


175-45x25















Type

Size

   Torque 

Overrunning speeds

Lubricant

Weight

Drag Torque 

FSO
FS
HPI


 capacity 

FSO

FS

FSO

HPI

FS


TR


TKN1)

nmax2)

nmax3)







[Nm]

[min-1]

[min-1]

[ml]

[ml]

[ml]

[kg]

[Ncm]

750

9660

1800/650

1000/650

222

384

207

38

5.08

800

17940

1500/525

850/525

222

444

251

46

7.12

900

24408

1350/500

700/500

532

473

340

71

8.47

1027

36612

700/375

500/375

651

946

473

113

13.56



NOTES

1) T max = 2 × T KN
» Refer to Selection page 10 to 13
2) Inner race/outer race
3) Inner race/outer race
4) Inch bore available on request
*) 6 holes equally spaced at 60° plus 2 extra-holes at
180°
5) Tolerance for sizes 900 and 1027: -0,08

MOUNTING EXAMPLE


  




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