
REXNORD 2100MMU spherical roller bearing
- Brand
- REXNORD
- Category
- Bearings
- Subcategory
- Spherical roller bearings
- Series
- 2000U
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Description
REXNORD 2100MMU 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 2100MMU and any equivalents.
The Rexnord 2000U line covers two-row spherical roller bearings built around a spherical raceway, so they handle heavy radial loads plus axial loads in either direction while the shaft runs out of line. That makes them a common choice where shafts deflect or housings do not sit perfectly true. MR Industrial Accessories LLC quotes these bearings by part number for maintenance and purchasing teams in the United States and Latin America.
Reading the code is straightforward once you know the pattern. The leading digits set the size within the 2000U family, and the MMU suffix stays the same across every variant. That means 2080MMU, 2085MMU, 2090MMU and 2100MMU follow one construction approach and differ in bore and outer dimensions. Give us the complete code together with the shaft diameter and we can match it to the right reference in the series.
Typical service includes belt conveyors, mills, mixers, screens, centrifugal pumps and other process equipment where the shaft flexes under load. You will also find them in agricultural machinery, aggregate plants and material handling systems, in each case where some misalignment between housings is normal and does not justify a rigid bearing.
Selection comes down to three things: bore diameter and length, the sealing type the environment calls for, and the internal clearance the equipment can accept. The spherical design tolerates misalignment during mounting, but it does not excuse poor housing alignment. Seat the bearing on a sound seat, apply the specified grease, and confirm the outer ring can move where the arrangement requires it. In dusty or damp conditions, the seal largely decides how long the bearing lasts.
When comparing spherical roller bearings across brands, work from main dimensions, bore type and sealing design rather than the commercial code. The same size can carry different nomenclatures from different manufacturers, and units are not always interchangeable once internal clearance or sealing changes. Before settling on a replacement for a Rexnord 2000U, compare dimensions and operating conditions.
If you have the code on hand, send it by WhatsApp or email along with the shaft diameter and, where possible, a photo of the mounting. From there we can quote the Rexnord reference or point you to a compatible option in the same family, and we can also advise on lubrication and mounting so the bearing runs as intended.
Dimensions
- Bore
- 100.00 mm
Frequently asked questions
- What does the MMU suffix indicate on Rexnord 2000U bearings?
- It marks the design within the 2000U series and appears on every reference in the family, including 2080MMU and 2100MMU. Send the full code by WhatsApp or email and we will confirm the variant your equipment uses.
- How do I pick between 2080MMU, 2085MMU, 2090MMU and 2100MMU?
- Size is what separates them: bore diameter and external dimensions. Measure the shaft and the housing, then factor in sealing and internal clearance. With those figures we can quote the matching reference.
- Is it possible to substitute another brand for a Rexnord 2000U?
- It can be done when main dimensions, bore type and sealing design line up. Interchangeability depends on dimensions and service conditions, not the commercial code. Send us the code and measurements and we will suggest a compatible alternative.

