ceramic ball silicon nitride ball si3n4 ball zirconia ball zro2 ball silicon carbide ball sic ball aluminum oxide ball al2o3 ball
ceramic roller silicon nitride roller si3n4 roller zirconia roller zro2 roller
ceramic bearing silicon nitride bearing si3n4 bearing zirconia bearing zro2 bearing silicon carbide bearing sic ball aluminum oxide bearing al2o3 bearing full ceramic bearing ceramic ball bearing ceramic roller bearing
hybrid ceramic bearing hybrid ceramic ball bearing hybrid ball bearing hybrid roller bearing ceramic hybrid bearing ceramic hybrid ball bearing
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Ball Grades

Tolerances of precision balls

Grade
Ball diameter
Tolerance
Gauge
Gauge mean values
(deviation range)
Dw
VDws
tDw
Ra
VDwL
interval
over
incl.
max
max
max
max
I
Unit >
mm
mm
m
m
m
m
m
m
3
0
12.7
0.08
0.08
0.012
0.13
0.5
-5..-0.5
0
+0.5..+5
5
0
12.7
0.13
0.13
0.020
0.25
1
-5..-1
0
+1..+5
10
0
25.4
0.25
0.25
0.025
0.5
1
-9..-1
0
+1..+9
16
0
25.4
0.4
0.4
0.032
0.8
2
-10..-2
0
+2..+10
20
0
25.4
0.5
0.5
0.040
1
2
-10..-2
0
+2..+10
28
0
50.8
0.7
0.7
0.050
1.4
2
-12..-2
0
+2..+12
40
0
101.6
1
1
0.080
2
4
-16..-4
0
+4..+16
100
101.6
152.4
2.5
2.5
0.125
5
5
-20..-5
0
+5..+20
152.4
175
2.5
2.5
0.125
5
10
-40..-10
0
+10..+40
200
175
250
5
5
0.200
10
15
-60..-15
0
+15..+60

(ANSI/AFBMA Std.10, ISO 3290)

 

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