1 piece Rubber-coated Contact Roller Belt Grinder Idler Wheel Spindle / Threaded Rod Attachment

Technical Specifications

• Roller Construction: 80A durometer vulcanized high-elastic rubber bonded over solid precision-machined metal core
• Available Dimensions & Configurations:
  • Threaded Rod Attachment (M10): 80 x 50 mm M10, 50 x 50 mm M10, 35 x 50 mm M10
  • Standard Small Contact Wheels: Dia. 50 mm, 44.5 mm, 38 mm, 31.8 mm, 25.4 mm (1"), 19 mm (3/4"), 12.7 mm (1/2")
  • Extended Spindle Wheels: Extended 50 mm, Extended 31 mm, Extended 19 mm
• Rubber Hardness: 80A Durometer (Shore A) for optimal balance of firm stock removal and contour cushioning
• Mounting / Spindle: Threaded rod attachment spindle / precision internal bearing assembly for smooth low-vibration rotation
• Machine Compatibility: 2x72 belt grinders, DIY knife grinders, small contact wheel attachments, tool arms
• Applicable Belts & Abrasives: Narrow ceramic alumina, zirconia, aluminum oxide, and silicon carbide sanding belts
• Sanding Application: Internal Radius Grinding, Knife Finger Choils, Tight Concave Profiling, Edge Deburring, and Bevel Sharpening
• Suitable Workpiece Materials: High Alloy Tool Steel, Stainless Steel, Carbon Steel, Titanium, Brass, Aluminum Alloys, and Dense Hardwood

Key Features & Engineering Highlights

• 80A Vulcanized Industrial Rubber: High-temperature vulcanization bonding prevents rubber delamination under heavy frictional heat and continuous grinding pressure.
• Tight Radius Access: Compact wheel diameters from 12.7 mm to 80 mm allow craftsmen to reach tight hollows, small inner curves, and intricate contours inaccessible to standard contact wheels.
• Spindle & Threaded Rod Integration: Designed for versatile mounting directly onto grinder tool arms, tool rests, or handheld spindle attachments.
• True-Running Concentricity: Precision core manufacturing ensures smooth, chatter-free belt tracking at high grinding speeds.

Applications & Workshop Integration

Essential for custom knife making, tool and die fabrication, gunsmithing, and musical instrument hardware shaping. Ideal for grinding blade finger choils, contouring handle scales, blending pipe weld intersections, and polishing tight internal radiuses.