Product

Features

One Way Clutches Sprag Type mainly used as Backstop clutches(Most suitable as

backstops, and mostly the contact-free versions);
Backstop clutches:The freewheel allows rotation in one direction only.

It overruns continuously during operation. The freewheel prevents reverse rotation

if the drive is disconnected.

Series

Introduction

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.

Series

Model No.

DC2222G DC2776 DC3034 DC3175(3G) DC3809A DC4127(3G) DC4445A DC4912(4C)

DC5476A DC5476A(4G) DC5476B(4G) DC5476C(4G) DC5776A DC63348 DC7221(5G)

DC7221B DC7221B(5G) DC7969C(5C) DC8334C DC8729A DC10323A(3C)

DC12334C DC12388C(11C)

Reducers , Flender Gearbox ,SEW Gearbox;
Overrunning clutch:for multiple-machine drives or to separate the inertia of masses of a

driven machine from the driving
machine after it has been switched off.
Indexing clutch:which turns a shaft step by step, thus achieving indexed material feed

or a variable speed.
Backstop clutch:to prevent a machine shaft turning backwards. In this case the

overrunning clutch acts as a brake.