SKF RB-5/G20W steel ball

SKF RB-5/G20W belongs to steel ball, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for RB-5/G20W and any equivalents.

SKF steel balls serve as rolling elements in bearings, valves, dispensers and other mechanisms where friction must stay low. They come in hard steels and are organized by diameter and precision grade. MR Industrial Accessories LLC supplies these balls for both replacement work and manufacturing. If you are unsure which size fits, send us a message on WhatsApp.

The part code tells you two things: the nominal diameter in millimeters and the precision grade. Take RB-3/G10W — a 3 mm ball at grade 10. Then RB-3.175/G20W is a 3.175 mm (1/8") ball at grade 20. The W at the end shows the standard supply condition. Tighter grades like G10 and G16 hold closer tolerances on diameter and roundness, which suits high-speed bearings. Looser grades such as G20 and G28 work in applications that demand less precision.

You will find these balls in the production and repair of deep groove ball bearings, thrust bearings, spherical joints and precision mechanisms. They also appear in check valves, metering pumps, measuring systems and locking devices. Common settings include industrial maintenance shops, food plants, laboratories and equipment factories. That range makes them useful for replacements as well as for prototypes and new designs.

When choosing a ball, look at three things: nominal diameter, precision grade and material. The grade sets the diameter tolerance and the roundness deviation — a lower number means higher precision. Make sure the diameter matches the bearing raceway or the housing. During assembly, do not strike the balls and keep them clean, because contamination speeds up wear. The lubricant you use must be compatible with the steel and with the operating conditions.

SKF steel balls can replace those from other makers when the diameter and grade designation are the same. At replacement time, compare the precision grade and the material, since balls of identical diameter may differ in surface quality. For critical applications, check the specific tolerances. If you need an equivalent, we can point you in the right direction based on how you plan to use it.

To get a quote for SKF steel balls, send the full code through WhatsApp. At MR Industrial Accessories LLC we help you confirm the right size and grade for your application. We can also assemble kits for bearing maintenance or replacement. Write to us and we will get back to you shortly.