The housing contains a precision ground surface perpendicular to the bearing axis and two, three or four mounting holes, depending on the style.Flanged ball bearing units flanged ball bearing units consist of an insert bearing mounted in a housing, which can be bolted to a machine wall or frame. The assortment includes units compliant with ISO standards, North American standards, or Japanese Industrial Standards (JIS).

A flanged housing with mounting holes connects these bearings directly to your system. They have a grooved inner diameter that's designed to work with spline shafts. Together, they transmit rotary power while allowing the bearing to move freely along the length of the shaft.Flange mounted bearings are used when the shaft axis is perpendicular to the bearing mounting surface. They incorprate a sealed bearing that is preassembled into a flanged housing.