3M 7010307649 Diamond Polishing Cloth Belt 18.93x1.5 in

Product Description

The 3M 7010307649 is a diamond polishing cloth belt designed for high-precision surface finishing on extremely hard materials. Built around micron-graded diamond mineral, a durable resin bond, and a water-resistant X-weight cloth backing, this belt delivers consistent, fine surface finishes on materials with a Rockwell C hardness exceeding 62. It measures 18.93 inches in length and 1.5 inches in width. This belt is intended for use in grinding, polishing, and superfinishing operations and is suited for installation by machinists and toolroom professionals working with hard-to-grind substrates.

This belt is applied in industrial and precision machining environments where conventional abrasive belts fall short. It serves as an alternative to traditional superfinishing techniques on hardened steels, ceramics, carbides, and similarly hard materials. The X-weight cloth backing provides the rigidity needed for consistent contact pressure across flat, contoured, and cylindrical workpiece surfaces. It should always be run with coolant to manage heat buildup and extend belt life.

Key Features

• Micron-graded diamond mineral for achieving finer, more consistent surface finishes
• Resin bond construction provides long-lasting abrasive retention
• Water-resistant X-weight cloth backing supports demanding applications
• Rated for materials harder than 62 on the Rockwell C scale
• Designed as an alternative to conventional superfinishing techniques
• Must be run with coolant to control heat and maximize service life

Compatibility

Designed as an OEM-style replacement or direct-fit abrasive belt for bench-top and inline belt finishing machines accepting an 18.93-inch by 1.5-inch belt size.

Installation Notes

Installation should be performed by qualified machinists or grinding equipment operators familiar with abrasive belt machinery. Power down and lock out the machine before mounting or removing the belt. Verify belt tracking alignment before resuming operation, and always operate with appropriate coolant flow as specified by the equipment manufacturer to prevent heat damage to both the belt and workpiece.

Technical Specifications

• Belt Length: 18.93 inches
• Belt Width: 1.5 inches
• Abrasive Type: Micron-graded diamond
• Bond Type: Resin
• Backing Material: X-weight cloth
• Color: Brown
• Minimum Hardness Rating: 62 Rockwell C
• Weight: 0.95 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010307649