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Within the various types of bearings there are three primary types of flange mount bearing which is the round or square four-bolt, the tri-cornered three-bolt, or the diamond-shaped two-bolt. This mount bearing provides support for a shaft that runs perpendicular to the bearing’s mounting surface. These are bearings mounted in a cast iron flange and used with other bearing types and offers numerous applications which is to keep them all straight in line. It is quite common for most ball bearings to have flanges as options in their configurations, these bearings are used with ball bearings, plain bearings, needle roller and roller bearings.

Standard housings include both cast iron and thermoplastic materials and come with built-in grease nibs. On external housings, flanges are used with bearings to help securely position them for reliable operation. Though problems can arise when high speeds or heavy loads create shaft flex, vibrations or axial load. Bearings that are mounted within a flanged housing are used when the bearing mounting surface is perpendicular to a shaft axis. They are commonly available in two, three, or four-hole configurations.  Four-bolt flanged ball bearing units have a square shape with 4 holes for mounting to accomodate higher loads than two-bolt flanges. 3-bolt flanged bearing units and 4-bolt flanged bearing units can be moved and aligned to accomodate long shafts better.


UCHE200 Series Mounted Bearings Units