INA SK104-207-KRR-L402/70-AH12 y-bearing (insert bearing)

INA SK104-207-KRR-L402/70-AH12 belongs to y-bearing (insert bearing), 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 SK104-207-KRR-L402/70-AH12 and any equivalents.

The INA SK KRR series covers Y-bearing inserts, also called insert bearings, designed to sit inside split plummer block or flanged housings. Each unit combines an extended inner ring, a cage made of synthetic material or sheet metal, and built-in seals that keep lubricant in and dust out. This makes the series a practical choice for transmission, conveying and agro-industrial equipment where alignment is simple and maintenance is straightforward.

Reading the code helps you order the right variant. The letters SK point to the insert family with an extended inner ring and set screw locking. KRR identifies the contact double-lip seal, a design for dusty or damp conditions. An L followed by a number shows the cage variant or ring treatment, while AH and its number refer to the hole configuration or mounting diameter. For instance, SK104-207-KRR-L402/70-AH12 breaks down into size and design details.

These inserts go into split plummer block housings, flanged housings or take-up frames. Typical applications include belt conveyors, bucket elevators, mixers, mills and grain handling equipment, as well as road machinery and irrigation systems when the housing matches the insert's outer diameter and locking method. Dusty, steamy or washdown environments call for checking seal performance and lip resistance.

When selecting an insert, confirm shaft diameter, outer ring diameter and overall width against the housing. Set screw locking needs the correct torque and a shaft with suitable hardness. Lubrication depends on temperature and speed, with lithium-based grease commonly used. Proper housing alignment avoids parasitic axial loads and supports insert life.

Because Y-inserts share standardized geometry, the same shaft and outer diameters can appear under different brand designations. No universal equivalence table exists, so interchangeability is confirmed by comparing dimensions and locking type. Variants may have single or double seals and different locking systems. If the housing is already in place, choose an insert with matching outer diameter and width.

Send the insert or housing part number on WhatsApp or by email and the team will quote promptly. You can also ask about seal, cage or locking variants within the same series, and get help finding equivalents for your equipment.