SKF IR 20X24X20 inner ring

SKF IR 20X24X20 belongs to inner ring, 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 IR 20X24X20 and any equivalents.

When a shaft lacks the hardness or surface finish needed to serve as a direct raceway, the SKF IR series inner ring provides a hardened and ground alternative. Designed for needle roller bearing arrangements, this component is pressed onto the shaft to create a reliable running surface. MR Industrial Accessories supplies this line to help you complete assemblies where radial space is tight and load demands are high.

The part number itself tells you the size. In the IR series, the letters IR stand for inner ring, and the numbers that follow are millimeter dimensions. Take IR 7X10X10.5: the bore is 7 mm, the outside diameter is 10 mm, and the width is 10.5 mm. When three dimensions appear, they always follow that order—bore, outside diameter, width. This coding lets you match a ring to your shaft and bearing without digging through separate tables.

These rings appear in machine tools, transmission equipment, pumps, compressors, conveyor belts, and agricultural machinery. They are common where the shaft is solid and a durable raceway is needed, such as in support rollers, pulleys, and cam systems. By substituting a hardened ring for the shaft surface, you simplify shaft machining and make maintenance easier.

Selection depends on shaft diameter, bearing width, and the load the assembly will carry. The ring must be mounted with enough interference to prevent slipping, but not so much that the raceway deforms. Use the same lubricant as the associated bearing, and check alignment between ring and bearing to avoid unwanted axial loads. In contaminated environments, sealing also affects how long the assembly lasts.

SKF IR series inner rings can generally be interchanged with rings from other manufacturers that use the same dimensional designation, including IR, LR, or similar series. Tolerances and heat treatment may differ between brands, so it is wise to verify those details. When possible, refer to the original bearing specifications to confirm compatibility. MR Industrial Accessories can help you evaluate the best option for your application.

To request a quote for an SKF IR series inner ring, send the complete part number via WhatsApp or email to MR Industrial Accessories. With that information, we can identify the exact size and suggest a component that fits your assembly. Ask us about equivalents and selection support for your equipment.