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

INA SK104-207-KRR-L402/70-AH12 is a reference of y-bearing (insert bearing), within Bearings. Request a quote for SK104-207-KRR-L402/70-AH12 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The Y-bearing (insert bearing) is a unit ready to mount in split plummer block or flanged housings. It consists of an extended inner ring, a synthetic or sheet metal cage and integrated seals that retain lubricant and block dust. The INA SK KRR series is used in transmission, conveying and agro-industrial equipment, where a simple-to-align and easy-to-maintain support is needed. MR Accesorios Industriales supplies this line in Buenos Aires, Argentina.

The SK KRR series designation reads in blocks. The letters SK identify the family of inserts with an extended inner ring and set screw locking. The suffix KRR indicates the contact double-lip seal, intended for environments with dust or moisture. The letter L followed by a number defines the cage variant or the ring treatment. The AH block with its number corresponds to the hole configuration or the mounting diameter. A specific example is SK104-207-KRR-L402/70-AH12, where each segment provides size and design data.

These inserts are mounted in split plummer block housings, flanged housings or take-up frames, and appear in belt conveyors, bucket elevators, mixers, mills and grain handling equipment. In Argentina they are common in oilseed plants, feedlots, meat processing plants and packaging lines, where an environment full of dust or steam demands robust sealing. They are also found in road machinery and irrigation equipment, provided the housing is compatible with the insert's outer diameter and locking system.

To select the insert, verify the shaft diameter, the outer ring diameter and the overall width, which must match the housing. The KRR seal is suitable for dirty environments; if there is frequent washdown, check the lip's resistance. Set screw locking requires tightening to the correct torque and on a shaft with adequate hardness. Lubrication is defined by temperature and speed; lithium-based grease is generally used. Housing alignment prevents parasitic axial loads and extends insert life.

Y-inserts are exchanged between brands thanks to their standardized geometry: the same shaft diameter and the same outer diameter may correspond to different commercial designations. There is no universal equivalence table, so interchangeability is confirmed by comparing dimensions and locking type. INA, SKF, NTN and other brands offer variants with single or double seals and with different locking systems. If the housing is already installed, it is best to replace the insert with one of the same outer diameter and width.

If you have the insert or housing part number, send it on WhatsApp to MR Accesorios Industriales and we will quote you shortly. You can also ask about seal, cage or locking variants within the same series. At MR Accesorios Industriales we know the equipment used in Argentine industry and we help you find the right replacement.