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 ASNU is a roller type freewheel nonbearing supported. Bearings are required to support

axial and radial loads. Lubrication and sealing must also be provided by the installation.

Nominal outer diameter is the same as a series 63...Ball bearing.
A typical arrangement is to install this type alongside a bearing within the same location

tolerances, as shown on the following page. The inner race is keyed to the shaft.
The outer race has positive n6 tolerance, to give a press fit in a H7 housing. Additional side

notches in the outer race provide for positive torque transmission.
If the housing is to K6 tolerance, use of the notches is not necessary, but the housing must

be strong enough to not expand after assembly. This design can accept an axial misalignment

of inner and uter race of ± S/2.

Series

Model No.

ASNU8 ASNU12 ASNU15 ASNU17 ASNU20 ASNU25 ASNU30 ASNU35 ASNU40 ASNU45

ASNU50 ASNU60 ASNU70 ASNU80 ASNU90 ASNU100 ASNU120 ASNU150 ASNU200
NFS8 NFS12 NFS15 NFS17 NFS20 NFS25 NFS30 NFS35 NFS40 NFS45 NFS50 NFS60

NFS70 NFS80 NFS90 NFS100 NFS120 NFS150 NFS200