GRWs product catalouge

Retainers for Miniature Ball Bearings
Designs and materials used for the retainers are suited to the task. Our two-piece ribbon retainer is sufficient
in the majority of cases.
The following table shows the different types:
GRW
Retainer 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. See catalogue
information pages 8 to 33.
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 molded synthetic
snap type retainer.
For deep groove ball bearings.
Good running and torque characteristics
for medium speed range.
Working temperature
-30 °C to 80 °C (short term 100 °C).
TN9H
One-piece glass-fibre
reinforced molded synthetic
snap type retainer.
For deep groove ball bearings.
Speed range higher than TNH retainer.
Working temperature
-30 °C to 120 °C (short term 180 °C).
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 -50 °C to 140 °C.
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 -50 °C to 260 °C
depending on material.
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