SEALMASTER MH-31 insert bearing

SEALMASTER MH-31 belongs to 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 MH-31 and any equivalents.

The SEALMASTER MH series is a single-row insert bearing with an extended inner ring, made to sit in split plummer block housings as well as wall or pillow block units. It fits applications where a rotating shaft needs support with straightforward alignment and where the insert can be swapped out quickly instead of tearing down the whole machine.

The code works like this: MH followed by a number that marks the insert size. Common part numbers include MH-16, MH-19, MH-20, MH-23, MH-24, MH-27, MH-31 and MH-32. That number is a reference assigned within the series, not a shaft diameter or a millimeter measurement. When you request a quote, give us the full part number exactly as it appears on the drawing or on the housing, and we will point you to the correct variant.

You will find these inserts on belt conveyors, bucket elevators, mixers, mills, packaging lines and general plant equipment. They show up in food processing, cement, ceramics, meatpacking and aggregate operations, where dust, moisture or washdowns are part of daily life. Because the insert is interchangeable, the bearing can be replaced without scrapping the housing, which matters when downtime is limited.

Selection starts with the sealing arrangement the environment demands: abrasive dust calls for a different setup than water or steam. Check the internal clearance and how the insert locks onto the shaft, since the inner ring staying put depends on that. During mounting, seat the insert without hammering on the raceway, line up both housing halves and lubricate for the actual operating conditions. Misalignment is the most common cause of shortened bearing life.

Across manufacturers, inserts of this type interchange by size and sealing configuration, not by catalog number. Two inserts with the same shaft size can differ in centering height, width or fixing method, so equivalence is verified by comparing dimensions rather than part numbers alone. Send us the original part number and a photo of the housing, and we will identify the alternative that matches the MH series.

If you need an MH insert for a replacement job, message us on WhatsApp with the part number: MH-16, MH-20, MH-24, MH-31 or whatever is on your maintenance list. We will quote it and, if a different sealing or fixing setup suits your application better, we will suggest the alternative. We also supply split plummer block housings and complete units so the assembly arrives ready to install.