5" X 5/8"-11 Resin Fiber Disc Backing Pad

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Product Specification

5" X 5/8"-11 RESIN FIBER DISC BACKING PAD

Benchmark Abrasives 5" resin fiber disc backing pad provides the rigid support needed to run 5" resin fiber discs on a right-angle grinder. Its solid thermoplastic construction helps transfer grinding pressure efficiently to the workpiece, making it well suited to aggressive stock removal, weld grinding, beveling, deburring, and other demanding applications.

Raised spiral ribs and ventilation holes promote airflow behind the abrasive disc to help manage heat during use. The rigid plastic construction is lighter than traditional rubber backing pads, while the included lock nut securely holds compatible 5" resin fiber discs in place.

Quantity: 1 Backing Pad with Lock Nut

Dimensions & Specifications

The current Benchmark specification confirms the 5" diameter, 5/8"-11 attachment, included lock nut, and 12,200 maximum RPM.

Product Features

• Designed for use with 5" resin fiber discs.
• Rigid thermoplastic construction provides firm support during grinding.
• Raised spiral ribs help promote cooling airflow.
• Ventilation holes provide additional airflow behind the abrasive disc.
• Firm backing transfers grinding pressure efficiently to the workpiece.
• Well suited to coarse grits and aggressive stock removal.
• Lightweight alternative to traditional rubber backing pads.
• 5/8"-11 threaded attachment fits compatible angle grinders.
• Includes lock nut for securing the resin fiber disc.

Machines Used On

• Right-Angle Grinders
• Angle Grinders with a 5/8"-11 Spindle

Disc Compatibility: Use with compatible 5" resin fiber discs, including Benchmark Abrasives aluminum oxide, zirconia, and ceramic resin fiber discs.

Also compatible with Benchmark 5" silicon carbide resin fiber discs.

Always make sure the backing pad, abrasive disc, retaining hardware, and grinder are compatible in diameter and operating speed. Never exceed the maximum RPM of the lowest-rated component.

Applications

Use with 5" resin fiber discs for:

• Heavy stock removal
• Weld removal and blending
• Beveling and edge preparation
• Deburring
• Grinding and shaping
• Rust and corrosion removal
• Paint and coating removal
• Surface preparation
• Blending and smoothing

Backing Pad Performance

• Pad Type: Rigid
• Support: Firm
• Best For: Aggressive grinding and stock removal
• Recommended With: Coarse through fine 5" resin fiber discs

Tip: Rigid backing pads transfer more pressure directly to the abrasive, making them particularly effective for coarse-grit grinding and heavy material removal.

Safety Tips & Techniques

• Inspect the backing pad, lock nut, abrasive disc, and grinder before use.
• Do not use a backing pad that is cracked, warped, melted, or excessively worn.
• Make sure the resin fiber disc sits flat and is securely fastened before operation.
• Never exceed the maximum RPM of the backing pad, abrasive disc, or grinder.
• Keep the grinder guard properly installed and use appropriate personal protective equipment.
• Replace the backing pad if it no longer supports the disc evenly or causes unusual vibration.