Craftsman flat top block grinder: which bearing C code?

[Jack Kint]

The dimensions and style of the old double-shielded shaft bearings from my Craftsman 1/2 HP 6" flat-top block grinder, 1/2" arbor, 3580 rpm, model no. 397.19430 (bought yesterday), match those of an SKF 6203 ZZ. But I am unsure of the correct C code, i.e., how much the inner and outer rings (races) of the bearing can move in relation to each other. So I am seeking a recommendation.

 

[bugzilla46310]

The C3 became popular with the smaller 3600 rpm motors that ran hotter. Then it seems they were in everything. For a grinder I do not believe that a C0 would make any difference. You can get either for about the same price. I’m a C0 fan and think they would work fine for the duty cycles of a grinder.

 

[Jack Kint]

Thanks for the information. I will follow your example and order a C0 bearing.