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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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Freewheel Backstop Clutch RSCI 20-130
  • Freewheel Backstop Clutch RSCI 20-130

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Freewheel Backstop Clutch RSCI 20-130

Data Sheet

ItemRSCI
MaterialGCr15
Bore dia.20-130 mm
Outer dia.90-322 mm
Torque212-15750 Nm
Weight (RSCI)1.5-35 kg
Weight (F8)0.3-6 kg
Number of Z6-12
PortShanghai; Ningbo
PackageCarton box, wooden box or as your requirement


Feature

Type RSCI is a centrifugal lift off sprag type freewheel with the inner race rotating. Only the inner race is designed for freewheeling. It is a non self- supported type.

Bearings must be provided to ensure concentricity of the inner and outer races and support axial and radial loads, as shown overleaf. Concentricity and run-out limits must be observed. The RSCI type accepts all types of lubricant currently used in power transmission equipment. It is possible to mount these freewheels directly in gear-boxes without separate lubrication. An oil mist is generally sufficient. Grease lubrication may be acceptable if the unit works mostly in overrunning condition, as on E-motors.

When used as a backstop, it must be checked that the overrunning speed will not go below the minimum speed given in the caracteristics table.

 

Type

Size

 

 

Speeds

 

 

Number

 

 

Weight


RSCI
dH7TKN1)nmax2)nimin3)nimax4)D1h6D2H7D4zLRSCIF8
[mm][Nm][min-1 ][min-1 ][min-1 ][mm][mm]  [mm][kg][kg]
20212315750150003666M66351.50.3
25319300725140004070M66351.60.4
30375290700110004575M66351.80.4
35550280670110005080M68352.10.5
4080026063080006090M88352.70.7
4591225561070006595M88352.90.9
501400235560600080110M88404.31
602350210510600085125M108606.51.8
7030501954704000100140M1012608.61.9
8045001804404000120160M10127012.52.6
80M58001553754000120160M10127013.12.6
9056001704103000140180M12128017.43
90M87001453503000140180M12128018.33
100105001453553000140210M161290285
100M160001403402400170210M161290305
130157501353302400170240M161290356

 

NOTES

1) T max = 2 × T KN

2) This maximum allowable torque transmission speed

n max must not be exceeded when transmitting torque

3) This minimum allowable overrunning speed ni imin

should not be reduced under continuous operation.

Possible reduction of this minimum speed on request

4) Inner race overruns

Keyway to DIN 6885.1

5) Tolerance +1

Cover F8 must be ordered separately


 

MOUNTING EXAMPLE

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