Steel balls

Steel balls are precision rolling elements used in bearings, check valves, dispensers, slides, and positioning mechanisms where smooth movement with low friction is required. They are selected by diameter and precision grade: the tighter the diameter and sphericity tolerance, the quieter and more even the rotation.

The SKF code combines diameter and grade. In RB-12.7/G20W, RB identifies the ball, 12.7 is the diameter in millimeters, and G20W includes precision grade G20; a lower grade number indicates a stricter tolerance. There are whole metric diameters, such as RB-10/G20W or RB-11/G20W, and others derived from inch fractions, such as RB-10.319/G20W (13/32 in.) or RB-11.112/G20W (7/16 in.). RB-1.5/G20W is a 1.5 mm ball.

They are used in the assembly and repair of bearings, in valves, dispensers, and calibration devices, and in mechanisms that require repeatable movement. To replace a ball, measure the nominal diameter with a micrometer and determine whether the mechanism requires a finer grade.

In this subcategory we work with SKF. Send us via WhatsApp or email the ball code or the diameter, precision grade, and quantity you need, and we will quote it promptly.