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GRW High Precision Ball Bearings

High precision ball bearings in grades up to ABEC 9 with bores from 1 to 30mm and comparable inch dimensions

Bearing Selector

Inch/Metric Bearing
Tolerance:
Desired Bore
Desired Outer Diameter
Material
Type
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retainers/cage types for miniature ball bearings

Designs and materials used for the retainers are suitable to the task. Our two-piece ribbon retainer is sufficient in the majority of cases.

The following table shows the different types:

GRW Retainer

/Cage

Code

Picture

Description/Material

Application Range/Purpose

E

J

Y

Two-piece ribbon retainer made of:

- steel sheet (E)

- stainless steel sheet (J)

- brass sheet (Y)

For deep groove ball bearings.

For stainless steel ball bearings; retainer from stainless steel sheet.

This retainer can also be clinched loosely to reduce torque.

JH

One-piece stainless steel snap type retainer.

For deep groove ball bearings.

Mainly used for small ball bearings at low and medium speeds.

TNH

One-piece moulded synthetic snap type retainer.

For deep groove ball bearings.

Good running and torque characteristics for medium speed range.

Working temperature -30oC to 80oC (short term 100oC).

TN9H

One-piece glass-fibre reinforced moulded synthetic snap type retainer.

For deep groove ball bearings.

Speed range high than TNH retainer.

Working temperature -30oC to 120oC (short term 180oC).

THA

THB

 

Machined one-piece snap type retainer made from reinforced phenolic resin.

A = outer ring guided

B = inner ring guided

For high speed deep groove ball bearings.

High rigidity and emergency running characteristics.

Working temperature -50oC to 140oC.

Can be vacuum impregnated with oil.

TXHA

TXHB

Machined one-piece snap type retainer made from special materials.

X stands for a number indicating the material.

A = outer ring guided

B = inner ring guided

For high speed deep groove ball bearings.

High rigidity and emergency running characteristics.

Working temperature -50oC to 260oC depending on material.

TA

TB

Machined one-piece, solid retainer made from fabric reinforced phenolic resin.

A = outer ring guided

B = inner ring guided

Only for AC types

For high speed angular contact/spindle ball bearings.

High rigidity and emergency running characteristics.

Working temperature -50oC to 140oC.

Can be vacuum impregnated.

TXA

TXB

Machined one-piece, solid retainer made from special material.

X stands for a number indicating the material.

A = outer ring guided

B = inner ring guided

Only for AC types

For high speed angular contact/spindle ball bearings.

High rigidity and emergency running characteristics.

Working temperature -50oC to 260oC.

Can be vacuum impregnated.

VAC1

VAC2

Full complement ball bearing, without retainer, cannot be disassembled.

VAC1 = one shoulder relieved on outer ring.

VAC2 = one shoulder relieved on inner ring.

Used for medium speeds and high axial loads in one direction only.

NOTE

Not all retainers are available for all bearing sizes. Please call for further information.

Other ball bearings and retainer designs and also retainer materials for special requirements are available on request. 

  

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