REXNORD ZN75055MM spherical roller bearing

REXNORD ZN75055MM belongs to spherical roller 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 ZN75055MM and any equivalents.

REXNORD ZN5000 series bearings are double-row spherical roller units built around a spherical raceway. They carry heavy radial loads along with moderate axial loads in either direction. Because the rolling elements can shift within the raceway, the shaft may run at a slight angle to the housing without a loss of capacity, which matters on long shaft spans, flexible frames and drives exposed to vibration.

Reading a ZN5000 code is straightforward once you know the blocks. The letters ZN mark the spherical roller family, the digits in the middle point to the size, and the closing MM letters define the execution. Part numbers such as ZN65050MM, ZN75055MM, ZN85060MM and ZN95075MM show how that numeric block shifts from one size to the next. For a replacement, quote the full number as it is stamped on the nameplate or printed on the equipment drawing.

Typical service includes belt conveyors, bucket elevators, mills, mixers, large centrifugal pumps, fans and crushing equipment, plus road machinery, cranes and transmission systems where shafts flex or housings sit slightly out of line. Plants in food processing, cement, mining and aggregates often rely on this design, since dusty conditions and continuous load call for a robust bearing with predictable maintenance.

Selection depends on sealing type, internal clearance and the lubrication system on the equipment. Where dust or moisture is present, solid protection against contaminants pays off. In misaligned assemblies the spherical design absorbs the angular error, but the housing and shaft still need to be in good condition. Use the lubricant the equipment manufacturer specifies and renew it at the stated service hours. Careful alignment and correct housing adjustment also help the assembly reach its expected life.

Cross-brand equivalents should be compared by main dimensions, load type and execution rather than part number alone. Each manufacturer applies its own nomenclature to spherical roller bearings, and one size can differ in cage, sealing or clearance. Measuring the seat and the shaft and then consulting a specialist is the safer route. MR will point you to the compatible alternative for your application.

To replace a ZN5000 series bearing, send the complete part number to MR Industrial Accessories by WhatsApp or email. Add the equipment model or the assembly dimensions and the team will quote the matching option and advise on mounting and lubrication. Technical inquiries from across the United States and Latin America are answered promptly.