Value Collection SR156ZZ Miniature Ball Bearing Double Shield

Product Description

The VALUE COLLECTION SR156ZZ is a miniature single-row ball bearing built for precision applications where compact dimensions and reliable load performance are required. It features a 0.1875-inch bore diameter, a 0.3125-inch outside diameter, and an overall width of 0.125 inches. The double-shield design keeps contaminants out while retaining lubricant, extending service life in tight installations. With a static load capacity of 29 pounds and a dynamic load capacity of 81 pounds, this bearing handles the demands of light-duty rotating machinery and instrumentation. The stainless steel housing material provides corrosion resistance suitable for demanding environments. Rated ABEC-5, it delivers the dimensional accuracy and running precision expected in precision equipment service.

This miniature ball bearing is suited for use in small motors, pumps, fans, actuators, and precision instruments found in HVAC equipment, light industrial machinery, and electronic assemblies. The round bore and unflanged, no-snap-ring design simplifies drop-in installation in standard housings. Mechanical technicians, equipment repair specialists, and precision instrument technicians are the typical installers for this bearing type. Its compact envelope makes it particularly useful where space constraints prevent the use of standard-series bearings.

Key Features

• Miniature form factor: 0.1875-inch bore, 0.3125-inch OD, 0.125-inch width
• Double-shield configuration protects against contamination and retains lubricant
• ABEC-5 precision rating for accurate dimensional tolerances and smooth operation
• Stainless steel housing material for corrosion resistance
• 81-pound dynamic load capacity and 29-pound static load capacity
• Single-row design with round bore and no flange for straightforward fitment

Compatibility

Designed as an OEM-style replacement miniature ball bearing for applications requiring a 0.1875-inch bore, 0.3125-inch OD, single-row, double-shield bearing in a standard SR156ZZ envelope.

Installation Notes

Installation of miniature ball bearings should be performed by a qualified mechanic or equipment technician. Always de-energize and lock out the equipment before servicing any rotating component. Use a proper bearing press or installation sleeve that applies force only to the appropriate bearing race — never strike the bearing directly with a hammer. Avoid applying heat beyond the bearing manufacturer's recommendations, as excessive heat can alter bearing geometry and compromise ABEC-5 tolerances.