Dynabrade 50630 Disc Backing Pad 5 in 12000 Rpm

Product Description

The DYNABRADE 50630 is a rubber disc backing pad designed to mount abrasive discs on random orbital sanders used in surface preparation and finishing work. The pad measures 5 inches in diameter and accepts a 5/16 in-24 male threaded spindle, making it a direct-thread replacement suitable for power tool service and abrasive accessory maintenance. Rated to 12,000 RPM, this backing pad is built for the rotational loads typical in industrial and trade finishing applications. Installation requires no specialized tooling beyond standard spindle engagement. Metal fabricators, auto body technicians, woodworkers, and general tradespeople who rely on random orbital sanders will find this pad a straightforward replacement component.

This backing pad is suited for use with random orbital sanders in both shop and field environments. Its threaded mount design provides a secure connection to compatible sander spindles without the need for adapter hardware. Typical applications include surface prep, paint removal, sanding, and finishing on metal, wood, and composite substrates. The rubber construction provides flexibility and even abrasive contact across the work surface, which helps maintain consistent stock removal and finish quality.

Key Features

• 5 inch diameter provides broad abrasive surface coverage for random orbital sanders
• 5/16 in-24 male thread for direct spindle mounting without adapters
• Rated to 12,000 RPM for compatibility with standard random orbital sander speeds
• Rubber construction offers flexibility and even disc contact across the work surface
• Threaded mount type ensures positive engagement and easy disc changes

Compatibility

Designed for use with random orbital sanders accepting a 5/16 in-24 male threaded spindle connection and a 5 inch backing pad.

Installation Notes

This backing pad is installed and serviced by metalworkers, auto body technicians, and general tradespeople familiar with abrasive power tools. Always power down and disconnect the sander from its air supply or electrical source before removing or installing a backing pad. Thread the pad onto the spindle by hand until fully seated, then verify it is snug before attaching an abrasive disc. Do not exceed the 12,000 RPM rated speed of the pad.