250x50mm 10” Expander Wheel Rubber Polishing Wheel working with 790x50mm Sanding Sleeves Bench Grinder Engines Motor Part

Technical Specifications

• Wheel Outer Dimensions: 250 mm Diameter x 50 mm Width (Approx. 10" x 2")
• Bore / Inner Hole Diameters: 15.875 mm (5/8"), 19 mm (3/4"), or 25 mm (1") with precision keyway/bore machining (custom inner diameters supported upon request)
• Centrifugal Rubber Hardness: 55A Durometer Shore hardness (provides ideal elasticity, cushioning, and firm backing for contour polishing)
• Maximum Operational Speed: Rated up to 2,800 RPM for high-efficiency stock removal and deburring
• Compatible Sanding Sleeves: Standard 790 mm x 50 mm (approx. 31" x 2") endless abrasive spiral bands/sleeves
• Machine Mounting Compatibility: Direct drive electric motors, bench grinders, shaft polishers, and custom grinding workstations

Key Performance Advantages

• Centrifugal Expansion Locking: Slotted rubber design automatically expands under rotational centrifugal force, locking the 790x50mm abrasive sleeve tightly in place without glue or mechanical clamps.
• Quick Tool-Free Sleeve Changes: When the drive motor stops, the rubber relaxes, allowing worn abrasive sleeves to slide off effortlessly and new bands to install in seconds.
• Vibration Absorption: High-resilience rubber construction absorbs vibration and workpiece chatter, ensuring uniform grind patterns and reduced operator fatigue.

Recommended Applications

• Metalworking & Fabrication: Weld blending, deburring, profiling curved surfaces, and stainless steel graining.
• Foundry & Castings: Gate removal, flash trimming, and contour grinding on aluminum, brass, bronze, and cast iron.
• Woodworking & Carving: Rapid shaping, edge rounding, and curved surface smoothing on hard and soft woods.