Radial Internal clearance

IntroductionSelection Guide Engineering DataBrochure

All Nice single row deep groove ball bearings are designed and produced with radial internal clearance to provide for optimum performance. Nice ball bearings are supplied with "normal" radial clearance as standard, but can be ordered with radial clearance tighter than normal or looser than normal as a special item. The values listed in the table below apply to bearings before mounting and under no load and are supplied as a design guide. Consult Nice engineering when ordering other than normal radial clearance.

RADIAL INTERNAL CLEARANCE (.0001) INCH
Precision Level
Series/Type
Normal
Min. - Max.
Tight
Min. - Max.
Loose
Min. - Max.
Extra Loose
Min. - Max.
1600/Ground
2-12
2-6
7-22
10-25
3000/Semi-Ground
10-50
10-40
10-60
10-70
7500/Ground
2-12
2-6
7-22
10-25
7600/Ground
2-12
2-6
7-22
10-25
6900/Semi-Ground
10-30
10-20
10-40
10-25
400/Unground
10-70
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500/Unground
10-70
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