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Spindle/Angular Contact Ball Bearings<br />
Spindle ball bearings are angular contact ball<br />
bearings which, depending on the type, have<br />
a relieved land on the inner ring (AC2) or the<br />
outer ring (AC1). Axial forces can thus only<br />
be accepted in one direction. Spindle ball<br />
bearings can be used as single ball bearings<br />
or as ball bearing pairs in back to back, face<br />
to face or tandem arrangement.<br />
GRW spindle ball bearings have the following<br />
characteristics:<br />
•Production in high-precision quality (grade<br />
P5, P4, P2 or ABEC5, ABEC7, ABEC9)<br />
• One-part solid phenolic retainer<br />
(TA, TB, see page 41)<br />
• Larger number of balls than in standard ball<br />
bearings<br />
• Contact angle 15°<br />
(other angles available upon request)<br />
•Available with steel balls or ceramic balls<br />
• The preload for ball bearing pairs is selected<br />
according to the applied load (light,<br />
medium or heavy preload)<br />
• Spindle ball bearings are generally<br />
lubricated with oil<br />
These characteristics allow the ball bearings<br />
to run very accurately at high speeds. At the<br />
same time these ball bearings are very rigid<br />
and have minimum vibration levels.<br />
The standard type is:<br />
AC1 TA<br />
Relieved on outer ring shoulder, ball bearing<br />
cannot be disassembled, solid phenolic<br />
retainer guided on outer ring.<br />
Other types including ball bearings with<br />
removable inner rings are available upon<br />
request.<br />
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