Ceramic Balls Grades

BALL GRADES
Grade
Diameter Tolerance
per Batch
Sphericity
Maximum Surface Roughness
 
Inch
Inch
Micro Inch
5
0.00001
0.25
0.000005
0.127
0.8
0.02
10
0.00002
0.51
0.000010
0.25
1.0
0.025
25
0.00005
1.27
0.000025
0.63
1.5
0.038
50
0.0001
2.5
0.00005
1.27
3.0
0.075
100
0.0002
5
0.0001
2.5
5.0
0.125
200
0.0004
10
0.0002
5
8.0
0.2
500
0.001
25
0.0005
12.5
Not Applicable
1000
0.002
50
0.001
25
Not Applicable
2000
0.004
100
0.002
50
Not Applicable
Typical applications for these grades are as follows
Grade
Application
G5, G10 High precision bearings, Gauges
G25 Precision bearings
G100 Bearings, drawer
G200 Soap dispensers, Body jewellery
G500 Automotive seat slides, Bicycles
G1000 Castors, Unground bearings
G2000 Agitators, Decorative uses, Weights, Ballast
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