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RBC Thin Section Ball Bearings

RBC thin section ball bearings are engineered to solve a variety of design problems that cannot be solved with conventional ball bearings.

thin section ball bearings - tolerances 

Precision Grades

RBC thin section ball bearings are available in four precision grades.  Precision Classes 0, 3, 4 and 6 correspond to ABMA ABEC grades 1F, 3F, 5F and 7F respectively. The tolerances for the bearing bores, outer diameters, radial runouts, axial runouts and radial plays are shown in the tolerances tables links below.

Shaft & Housing Fits

Proper shaft and housing fits are critical to the successful operation of a thin section ball bearing. The internal clearance of the bearing will be reduced proportionally by an interference fit.  It addition, the roundness of the inner and outer ring raceways. For most applications the inner ring is rotating and the load is stationery with respect to the outer ring. In this situation a light press fit onto the shaft in recommended. The recommended shaft and housing fits are shown in the tolerances tables listed below.

Y-PWI Series

Tolerances and Recommended Fits

Thin Dense Chrome Coated - N Series Tolerances and Recommended Fits


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