Steel Balls

Steel balls are precision rolling elements used in bearings, valves, dispensers, and mechanisms where low-friction movement is required. They are manufactured with high-hardness steels and are selected by diameter and precision grade: the finer the dimensional and sphericity tolerance, the smoother and quieter the rotation. At MR Accesorios Industriales, we offer 79 SKF references for replacement and manufacturing.

The part number of a ball condenses its main data. In RB-19.05/G20W, for example, the designation RB identifies the steel ball, the number 19.05 corresponds to the diameter in millimeters, and the suffix G20W indicates the precision grade and surface finish. The lower the grade number, the stricter the form and diameter tolerance, something that is noticeable in the vibration and noise of the mechanism.

Typical applications include the assembly and repair of deep groove ball bearings, thrust bearings, and angular contact bearings, as well as check valves, dispensers, slides, and positioning mechanisms. They are also used as a calibration or sealing element in devices that require smooth and repeatable movement.

To request a quote, you need the complete part number or, if you do not have it on hand, the ball diameter and the required precision grade. If the ball is to replace an existing one, it is advisable to indicate the nominal size and the allowable tolerance. With that data, we give you the corresponding SKF alternative and the minimum purchase quantity.

At MR Accesorios Industriales, we work from Buenos Aires, Argentina, with more than 80 years in the industrial field. You can contact us by WhatsApp or email indicating the ball part number, diameter, and quantity you need, and we will reply with the quote.