6" x 1-1/2" 140 Grit Diamond Resin Grinding Wheel – Nova Soft Wheel for Precision Glass & Stone Grinding

The 6" x 1-1/2" 140 Grit Diamond Resin Grinding Wheel (Nova Premium Soft Wheel) is an industry-standard lapidary soft grinding wheel engineered for coarse scratch smoothing, contour refining, and rapid pre-shaping on gemstone cabochons, glass cold work, and mineral specimens. Built with premium resin-bonded diamond abrasives uniformly dispersed over a resilient closed-cell foam cushion mounted on a heavy-duty balanced plastic hub, it effortlessly conforms to curved stone surfaces to eliminate flats and chatter marks.

Key Features

• Resilient Foam Cushioning: Conforms smoothly to cabochon contours, preventing flat spots and ensuring uniform surface contact across all curved workpieces.
• Coarse 140-Grit Diamond Formulation: Rapidly removes scratches left by roughing stages and levels surfaces for smooth intermediate sanding.
• Heavy-Duty Precision Plastic Hub: Precision molded plastic core ensures smooth, vibration-free operation at standard cabbing speeds.
• Standard 1-1/2" Working Width: Fits standard 6-inch cabbing machine arbor shafts and multi-wheel setups.
• Superior Wet Grinding Performance: Engineered for continuous water coolant operation to maintain cool cutting and prevent resin glazing.
• Standard 1" Arbor with Reducer Bushings: Precision 1-inch bore supplied with reducer bushings to fit 3/4", 5/8", and 1/2" shafts.

Applications

• Lapidary Cabochon Contouring: Smooth shaping and initial scratch removal on agate, jasper, jade, quartz, turquoise, and petrified wood.
• Glass Cold Working & Beveling: Edge smoothing and surface contour refinement on decorative glass and crystal sculptures.
• Ceramic & Specimen Prep: Precision profile smoothing on ceramics and mineral display pieces.

Technical Specifications

• Diameter: 6 inches (150 mm)
• Width: 1-1/2 inches (38 mm)
• Grit: 140 Grit (Coarse Smoothing & Scratch Removal)
• Bond Type: Resin Bond with Flexible Closed-Cell Cushion
• Hub Material: Precision Injection-Molded Polymer Core
• Arbor Size: 1 inch (includes 3/4", 5/8", 1/2" reducer bushings)
• Recommended Operating Speed: 1400–1800 RPM

Operating Guidelines

• Always operate with continuous water lubrication to flush slurry and prevent thermal damage to the resin matrix.
• Apply light to moderate, uniform pressure across the wheel face; excessive force causes premature wear without improving cutting rate.
• Move workpieces continuously across the wheel to ensure even surface wear and maintain concentric wheel balance.