14"x2" Solid Rubber Contact Wheel 90A 70A 55A 350x50mm Belt Grinder Sander Tracking Idler wheel

Technical Specifications

• Outer Diameter (OD): 350 mm (14")
• Rim / Face Width: 50 mm (2")
• Core Material: High-density sand-cast aluminum core blank, precision dynamic-balanced and CNC machined
• Rubber Tire Coating: High-grade vulcanized industrial solid rubber (smooth groove-free face)
• Available Durometer / Shore Hardness:
  • 55A (Soft): Yields under pressure for compliant contour blending, concave profiling, and satin/mirror finishing
  • 70A (Medium): Balanced all-around performance for blade grinding, deburring, and general metal fabrication
  • 90A (Hard): High-density firm backing for aggressive stock removal, flat platen grinding, and rapid weld leveling
• Available Bore & Bearing Options:
  • Through Hole: 25 mm smooth through-hole (can be lathed or installed directly on shaft)
  • Installed Bearings: 6201 (12 mm bore), 6202 (12.7 mm / 1/2" bore), 6202 (15 mm bore), 6202 (15.875 mm / 5/8" bore), 6204 (20 mm bore), 6005 (25 mm bore)
• Machine Compatibility: 2x72 belt grinders, custom knife making grinders, backstand idler setups
• Applicable Belts & Abrasives: 2" wide ceramic alumina, zirconia, aluminum oxide, and non-woven conditioning belts
• Sanding Application: Large Radius Hollow Grinding, Knife Bevel Profiling, Heavy Stock Removal, Weld Leveling, and Mirror Polishing
• Suitable Workpiece Materials: High Alloy Steel, Stainless Steel, Carbon Steel, Cast Iron, Aluminum, Brass, and Hardwood

Key Features & Engineering Highlights

• Large 14" Diameter Hollow Grinding: The 350 mm diameter produces shallow, sweeping hollow grinds on knife blades and edge tools, ensuring optimal cutting geometry without thinning the spine excessively.
• Smooth Groove-Free Solid Rubber Face: Continuous full-contact rubber surface ensures 100% abrasive belt adhesion, providing uniform force transmission and preventing abrasive belt patterning on polished workpieces.
• Precision Cast Aluminum Core: Dynamic balanced core eliminates high-speed vibration and belt tracking flutter, maintaining smooth, quiet operation at full motor speeds.
• Heavy-Duty Vulcanized Bond: High-strength vulcanization guarantees the rubber will not loosen, separate, or blister under prolonged heat and high frictional loads.

Applications & Workshop Integration

Engineered for professional bladesmiths, metal fabricators, and foundry workers. Perfect for hollow grinding long chef knives, hunting blades, deburring structural steel parts, and achieving high-uniformity satin or mirror finishes on curved surfaces.