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Designation
Ball Bearing
Version 1
single row
Version 2
with cage
Body material
ceramic
Component material
PTFE
Body colour
white
B=Width
8
D1=Outside diameter
28
D=Internal diameter
12
T1=Dynamic load ratings N
3300
T2=Static load ratings N
1700
U=Speed limit rpm
29000
Material description (NOT STEE
ZrO2

Description

Material
Ceramic bearings ZrO2.
Bearing cage PTFE.
Version
Natural, white.
Note
Zirconia (ZrO2) is a cost-effective alternative to Si3N4. It also has the advantage that the thermal expansion is similar to that of steel, which means that a shrink fit is not required as expansion differences between the bearing housing and a steel shaft do not occur.
Safety
Reacts with concentrated hydrochloric acid, nitric acid and sulphuric acid.
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