Value Collection SR144ZZ Miniature Ball Bearing ABEC-5

Product Description

The VALUE COLLECTION SR144ZZ is a miniature radial ball bearing designed for precision, low-load rotating applications. It features a 0.125 inch bore diameter, a 0.25 inch outside diameter, and an overall width of 0.1094 inches. The double-shield construction keeps contaminants out of the raceway without adding the drag of a contact seal, making it well-suited for compact assemblies where low torque and cleanliness matter. Built from stainless steel housing material and rated ABEC-5 for dimensional accuracy, this bearing meets the tolerance demands of instruments, small motors, and precision mechanical assemblies. It carries a static load capacity of 20 pounds and a dynamic load capacity of 64 pounds.

This single-row miniature bearing fits tight-space applications across industrial, HVAC, and electromechanical equipment. Typical use cases include small fan motors, linkage pivots, actuator assemblies, and precision instruments where bore sizes in the 0.125 inch range are specified. The non-flanged, round-bore configuration allows straightforward press-fit or slip-fit installation into standard housings. It is appropriate for both OEM production builds and field replacement work by maintenance technicians and mechanical service professionals.

Key Features

• Stainless steel construction for corrosion resistance in humid or washdown-adjacent environments
• Double-shield design limits contamination ingress without contact-seal drag
• ABEC-5 tolerance rating for reduced runout and improved rotational accuracy
• Static load capacity of 20 pounds and dynamic load capacity of 64 pounds
• Single-row, non-flanged, round-bore configuration for standard housing compatibility
• Compact envelope: 0.125 inches bore, 0.25 inches OD, 0.1094 inches wide

Compatibility

Designed as an OEM-style replacement or drop-in for miniature radial ball bearing applications calling for an SR144ZZ bearing in a 0.125 inch bore, 0.25 inch OD, 0.1094 inch width envelope.

Installation Notes

Miniature bearings should be installed by qualified mechanical or maintenance technicians familiar with precision fits. Power down and de-energize all equipment before replacing a bearing in any live assembly. Use appropriate bearing installation tools to press or drive the bearing squarely into its housing — never strike the bearing directly, as this can damage the raceways or shields. Verify bore and shaft diameters with calibrated measuring tools before installation to confirm proper fit tolerances.