REXNORD ZB3211 flange bearing 4 holes

REXNORD ZB3211 is a reference of flange bearing 4 holes, within Bearing housings. Request a quote for ZB3211 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

Rexnord ZB series housings are 4-bolt flange mounted bearing units, designed to secure rotating shafts to flat structures with simple, firm alignment. They are used in equipment where the bearing must be flanged to a plate or housing, transmitting radial loads and some axial thrust. MR Accesorios Industriales sells this line, with alternatives for different shaft sizes and mounting configurations.

The ZB designation reads as a four-digit code: the first two indicate the housing type and the last two, the shaft size. For example, ZB2303, ZB2307 and ZB2308 share the 2000 series and vary in housing diameter; ZB3111 and ZB3115 correspond to the 3000 series, with higher capacity. The numeric suffix does not indicate the diameter in millimeters directly, so it is best to request a quote with the complete code and the required shaft size.

These housings are used in belt conveyors, bucket elevators, mixers, mills and process equipment in food, chemical and aggregate plants. In Argentina they are common in the oilseed, meatpacking and cement industries, where a robust mounting with simple maintenance is needed. The 4-bolt flange allows them to be fastened to folded sheet metal or cast frames, with the possibility of rotating the housing to orient the load.

To select the housing, verify the shaft size, the fastening type and the environmental conditions. If there is dust, water or frequent washdowns, choose versions with reinforced sealing; in clean environments, standard sealing is sufficient. During mounting, make sure the flange sits flat and that the bolts are tightened in a cross pattern so as not to deform the housing. Lubrication must be the one specified by the manufacturer and the internal clearance is not adjusted in this type of unit.

Equivalences between mounted housing brands are established by shaft size, flange type and load capacity, not by the code. A Rexnord ZB can be replaced by units from other brands with the same configuration, but mounting and sealing dimensions must always be compared. MR Accesorios Industriales tells you the compatible alternative if you cannot find the exact code.

If you need a Rexnord ZB housing, send the complete code by WhatsApp to MR Accesorios Industriales. We will quote you shortly and, if you are looking for a variant that does not appear, write to us with the model or shaft size and we will tell you the corresponding option.