Machine Design

Bearings Products: Stacked-Plate Bearings

Hydrodynamic pressure bearings in the BBSPLN Series are 30% lighter and cost less than conventional ball bearings.

They consist of a stack of 0.4-mm-thick aluminum-silicon alloy plates housed in a stainless-steel case. The inner faces of the plates form the bearing’s bore to an accuracy of ±0.003 mm. Cutouts in the plates house a polyurea-thickened grease with antioxidant and anticorrosion additives.

The bearings handle speeds of up to 20,000 rpm in light-duty applications like compact fan motors and printer-paper feeders. Radial loads of up to 1 kg are tolerated. IDs range from 1 to 6 mm.

Quality Bearings & Components
125 Railroad Ave.
Garden City Park, NY 11040
(888) 276-4787

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