SEALMASTER USRBF5520-308 mounted spherical roller bearing

SEALMASTER USRBF5520-308 belongs to mounted spherical roller 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 USRBF5520-308 and any equivalents.

The USRB5500 line from SEALMASTER covers mounted spherical roller housings, supplied as a complete unit with the bearing already fitted inside. A few bolts hold the assembly to the frame, and the shaft is ready to turn. Radial loads are handled directly, and small amounts of shaft-to-base misalignment are absorbed by the bearing itself, which suits conveying, milling and agitation equipment where alignment is never perfect.

Reading the code helps when ordering. The letters USRB point to the mounted spherical roller housing family. What follows sets the size and the build: USRBF5515-207, USRBF5517-215 and USRBF5520-307 are the same family at different shaft sizes. The four digits after the hyphen tie back to shaft diameter and fixing style, so the safest way to order is to copy the full reference from the nameplate or the drawing and send it unchanged.

Typical installations include belt and chain conveyors, bucket elevators, mixers, mills, screens and other continuous process lines. Food plants, cement works, aggregate operations and wastewater treatment sites also use them, since dust, moisture and washdown are common there. Because the bearing comes mounted, a replacement goes onto the existing shaft without rebuilding the base.

Selection comes down to four points: shaft diameter and length, the radial and axial loads expected, the fixing style the equipment accepts, and the sealing. Where dust or water is present, extra protection around the seal is worth considering. Set the housing on a flat, clean surface, line the shaft up with the base, then tighten the bolts in pairs following a cross pattern. Keep to the plant lubrication schedule and avoid mixing incompatible grease bases.

Interchange between makers works off shaft size, housing configuration and bearing type rather than each brand's catalog number. Comparing shaft dimensions, hole spacing and housing shape is the practical route, and we can point you to the option that matches those references.

Send the housing part number by WhatsApp or email, ideally with a photo of the assembly and the shaft dimensions. We will quote it and confirm the closest match. Bearings, seals and lubricants for the same assembly can be reviewed in the same inquiry.