NFR8 One Way Clutches Roller Type (8x37 x20 mm) Stieber Freewheel Clutch

Product

Features

One Way Clutches Roller Type mainly used as Overrunning and Indexing clutches,
Overrunning clutches:The freewheel disengages automatically when the driven member

rotates faster than the driving member.
Indexing clutch:The freewheel allows the conversion of reciprocating motion into a

discontinuous rotational movement.

Series

Introduction

Type NFR is a bearing supported roller type freewheelwithout any sealing. Lubrication

and sealing must be provided by the installation. Standard lubrication is oil.Size 8 to 20

units use steel on steel bearing support from the inner race. Above size 25, two

160.. series ball bearings are used,giving a higher overrunning speed capacity. A typical

arrangement is shown overleaf.The inner race is keyed to the shaft. The outer race has

a positive n6 tolerance to give a press fit in a housing to H7.Additional side notches

provide for positive torque transmission.The housing must be strong enough to not

expand after assembly.

Series

Model No.

NFR8 NFR12 NFR15 NFR20 NFR25 NFR30 NFR35 NFR40 NFR45 NFR50 NFR55

NFR60 NFR70 NFR80 NFR90 NFR100 NFR130
ANR-ANG8 ANR-ANG12 ANR-ANG15 ANR-ANG20 ANR-ANG25 ANR-ANG30

ANR-ANG35 ANR-ANG40 ANR-ANG45 ANR-ANG50 ANR-ANG55 ANR-ANG60

ANR-ANG70 ANR-ANG80 ANR-ANG90 ANR-ANG100 ANR-ANG130

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.