LINK-BELT CU3K43 cartridge bearing

LINK-BELT CU3K43 belongs to cartridge bearing, part of our Bearing housings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for CU3K43 and any equivalents.

Link-Belt 300 series cartridge blocks are mounted bearing units built into a cylindrical cartridge that sits inside a machined housing. The outer ring rests directly on the housing bore, so the shaft is guided and supported without flanges or external bolts. MR Industrial Accessories LLC supplies this line to maintenance and purchasing teams in the United States and Latin America.

Reading the code helps you order correctly. The letters at the start tell you the unit type, and the digits that follow the prefix give the shaft size. Take CU3K27, CU3K31, CU3K35, CU3K39, CU3K43, CU3K47 and CU3K55: the last number rises in steps and matches the different shaft diameters in the series. The K is part of the unit nomenclature and identifies the construction variant, so quote the code in full.

These blocks suit conveyors, bucket elevators, mixers, mills, pumps and process equipment where the shaft runs in a cylindrical housing. They appear in food, cement, mining, aggregate processing and material handling plants, in equipment that carries moderate radial load and is serviced by swapping the unit. Because the cartridge mounts inside a machined bore, no flange or external fastening bolt is needed.

Selection starts with two measurements: the shaft diameter you need and the housing diameter available on the equipment. Then look at the sealing for the environment, since dust, water or frequent washdown call for tighter seals. Before mounting, confirm lubrication and internal clearance, and line the housing up with the shaft. A housing that sits off-center will shorten the service life of any mounted unit.

Cartridge mounted units are interchanged by shaft number and housing dimensions rather than by commercial code. For a quote, send the full code of the original unit plus the shaft and housing dimensions. MR will point out the compatible alternative from the line it supplies and, when needed, the in-house option for split plummer block housings.

If you have the code of the unit being replaced, send it by WhatsApp with the shaft size and the application. We will quote the matching 300 series reference and name the compatible alternative. We can also review the full equipment assembly and suggest sealing and lubrication for the working environment.