SEALMASTER LS-120S insert bearing

SEALMASTER LS-120S is a reference of insert bearing, within Bearings. Request a quote for LS-120S via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The SEALMASTER LS 100 series insert bearing is a single-row bearing with an extended inner ring, designed to be mounted in split plummer block housings and wall or floor-mounted units. It is used when the insert needs to be replaced without changing the complete housing, which is common in maintenance of equipment running transmission shafts. MR Accesorios Industriales supplies this line in Buenos Aires, Argentina, and quotes the part number you need via WhatsApp.

The LS 100 series designation is read in parts: the letters LS identify the insert family, the three-digit number indicates the insert size within the series and the final letter indicates the type of shaft locking. In the example LS-120S, the suffix S corresponds to the mounting variant with set screws on the extended inner ring. If the equipment calls for another ending, it is best to provide the complete part number exactly as it appears on the nameplate or drawing.

These inserts appear in belt conveyors, bucket elevators, mixers, screens and packaging lines, as well as fans and plant centrifugal pumps. In the Argentine market they are found in food processing, cement, aggregates and waste treatment equipment, where dusty or humid environments take a toll on bearings. Because it is an interchangeable insert, replacement is done on the existing housing, which simplifies maintenance downtime.

To choose the right insert, check the shaft diameter, the locking type and the sealing the environment can tolerate. In areas with water or fine dust, an effective contact seal is recommended; on fast-rotating shafts, verify clearance and lubrication before mounting. Housing alignment is key: a poorly seated insert runs misaligned and fails prematurely. Apply the load on the correct ring and tighten the set screws onto the shaft without deforming the inner ring.

As for equivalents, inserts are compared by shaft diameter, inner ring width and locking type, not by each manufacturer's part number. An insert from another brand may work if those three variables match and the sealing is compatible with the housing. MR Accesorios Industriales indicates the alternative that fits best, without compromising fit or service life.

If you have the insert part number, the shaft size or a photo of the nameplate, send it via WhatsApp to MR Accesorios Industriales and we will quote it promptly. We can also verify compatibility with the housing you already have mounted.