SEALMASTER USRB5517A-300 mounted spherical roller bearing

SEALMASTER USRB5517A-300 is a reference of mounted spherical roller bearing, within Bearing housings. Request a quote for USRB5517A-300 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

SEALMASTER USRB5500A series housings are mounted units with spherical roller bearings, designed for rotating shafts with high radial loads and misalignment between shaft and structure. They are used in continuous process equipment where the housing must absorb stresses and keep rotation stable. MR Accesorios Industriales sells this line and advises you on choosing the right unit according to the shaft diameter and the type of mounting your machine needs.

The USRB5500A series designation is read in blocks: the letters USRB identify the mounted housing family, the following four digits indicate the housing size, and the letter A distinguishes the construction variant. The final suffix, separated by a hyphen, corresponds to the shaft diameter and the type of mounting, as seen in USRB5509A-107, USRB5511A-115 or USRB5517A-300. Comparing these examples shows that the first number of the suffix groups the shaft size and the remaining two digits define the configuration of the sleeve or the adjustment system. To request a quote, send us the complete part number exactly as it appears on the nameplate or on the equipment drawing.

These housings appear in belt and chain conveyors, bucket elevators, mixers, mills, process centrifugal pumps and aggregate processing equipment. In food, cement, mining and chemical plants in Argentina they are chosen when there are long shafts with deflection, vibration or assemblies where perfect alignment is not guaranteed. The robust housing and the spherical roller bearing allow the unit to work with angular misalignment without punishing the rolling elements, which is key in lines that cannot stop for corrective maintenance.

To select the unit properly, start from the shaft diameter and the type of mounting the shaft accepts: taper sleeve, adapter or direct fit. Check the radial load and the rotation speed of the equipment, and verify that the housing rests on a flat, rigid surface, with the anchor bolts tightened in a cross pattern. During mounting, lubricate according to the type of grease indicated for the application, check the internal clearance and make sure the chosen sealing is compatible with dust, water or frequent washdowns. A careful initial alignment extends the life of the bearing and the housing.

As for equivalents, mounted housings are compared between brands by shaft diameter, bearing type, housing shape and mounting system, not by the commercial part number. The same shaft can be handled with units from different manufacturers if those variables match. If you need to replace a SEALMASTER USRB5500A unit, send us the complete part number, the shaft diameter and a photo of the assembly: at MR Accesorios Industriales we tell you the compatible alternative.

To finalize the selection, take the working environment into account: the presence of water, steam, abrasive dust or chemical agents defines the type of sealing and the lubricant. The method of fixing to the shaft also matters, because future disassembly and ease of maintenance depend on it. If the equipment works with rotation reversal or axial loads, it is advisable to review the bearing configuration before defining the housing. Write to us on WhatsApp with the part number or model you need and we'll quote you shortly.