300x50mm Solid Rubber Contact Wheel 12"x2" Sanding Belt Grinder Sander Drive Idler wheel

Technical Specifications

• Outer Diameter: 300 mm (12 inches)
• Face Width: 50 mm (2 inches)
• Core Construction: Precision-machined solid aluminum alloy core with dynamically balanced rotation to eliminate high-speed vibration
• Tire Material: High-resilience vulcanized solid rubber tire bonded seamlessly to aluminum hub
• Shore Hardness Options:
  • 55A (Soft): Yielding, flexible contouring for convex/concave curves, fine blade hollows, and uniform satin finishing
  • 70A (Medium): Industry universal standard; ideal balance of firm stock removal and contour blending
  • 90A (Hard): Rigid, aggressive backing for rapid stock removal, flat platen grinding, and heavy profiling
• Bore & Bearing Mounting Options:
  • Through Hole 25 mm: Plain bore without bearings; ready for custom lathing or direct shaft mounting
  • 24 mm Bore with Keyway: 8x3 mm precision keyway for direct motor shaft drive
  • Bearings Installed: 6202 (12.7 mm / 1/2", 15 mm, 15.875 mm / 5/8" ID), 6201 (12 mm ID), 6004 (20 mm ID), 6204 (20 mm ID), 6005 (25 mm ID) for idler wheel positions
• Machine Compatibility: 2x72", 2x36", and 2x79" belt grinders, knife making sanders, and industrial finishing machinery

Key Performance Advantages

• Zero Chatter & Vibration: Solid metal face and dynamic balancing deliver butter-smooth contact with abrasive belts.
• Enhanced Belt Life: Resilient rubber compound cushions belt splices, preventing premature joint fatigue and belt bounce.
• Extreme Durability: Industrial vulcanized rubber compound resists heat, oil, and continuous heavy-pressure grinding.