Miniature Radial Ball Bearings

A wide variety of Miniature Radial Ball Bearings types and design variations are available to meet the requirements of virtually all precision instrument applications. Miniature Radial Ball Bearing types include radial retainer, pivot, thrust, high speed radial, angular contact and full ball complement.

Product Tables

Metric Series

Unflanged: Bore sizes 1mm to 9mm

Inch Series

Unflanged: Bore sizes 0.04 to 0.375 inches

Flanged: Bore sizes 0.0469 to 0.375 inches

Unflanged Extended Inner 0.0469 to 0.3125 inches

Flanged Extended Inner 0.0469 to 0.3125 inches

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Miniature Radial Ball Bearings Manufacturing - Overview. 

For miniature bearings, single-row deep groove radial ball bearings are the most common type of miniature bearings, having a wide range of suitable applications. The raceway grooves on both inner and outer rings have circular arcs of slightly larger radius than that of the balls. In addition to radial loads, axial loads can be applied in either direction. Because of their low torque, they offer high speed operation with low power loss. miniature bearings and instrument radial ball bearings are made with very high levels of precision, therefore these are generally used in applications where accurate rotational performance and low torque is necessary, and load capacity is a secondary issue.

Metric Miniature Bearing

1mm inner Diameter   1.5mm ID   2mm   2.5 mm   3mm   4mm   5mm   6mm   7mm   8mm   9mm   10mm

Inch (English) Sizes

5/64" ID = 0.078 inch   3/32" ID = 0.094 inch   1/8" ID = 0.125 inch   5/32" ID = 0.156 inch   3/16" ID = 0.188 inch   1/4" ID = 0.250 inch   5/16" ID = 0.313 inch   3/8" ID = 0.375 inch