1 piece Dia.150mm*50mm Rubber Wheel Belt Grinder Contact Idler Active Wheel 6"x2" Sander Part

Technical Specifications

• Outer Diameter (OD): 150 mm (6")
• Rim / Face Width: 50 mm (2")
• Core Material: High-density sand-cast aluminum core blank, precision dynamic-balanced and CNC machined
• Rubber Surface Options:
  • P-Type (Smooth / Plane Solid Face): Continuous groove-free surface for maximum abrasive belt fit, uniform contact pressure, and high grinding precision.
  • K-Type (Serrated / Grooved Face): Helical / radial serrated grooves for rapid heat dissipation, efficient chip clearing, and enhanced cutting aggression.
• Available Durometer / Shore Hardness:
  • 70A (Standard Medium): All-around optimal durometer for knife bevel grinding, contour shaping, deburring, and general fabrication.
  • 90A (High Hardness): High-density firm backing for aggressive heavy-duty stock removal, high-pressure weld leveling, and rapid rough grinding.
• Available Bore & Bearing Options:
  • Smooth Through Hole: 25 mm bore (direct shaft installation or custom lathe boring)
  • Installed Bearings: 6201 (12 mm bore), 6202 (12.7 mm / 1/2" bore), 6202 (15 mm bore), 6202 (15.875 mm / 5/8" bore), 6004 (20 mm bore)
• Machine Compatibility: 2x72 belt grinders, knife making backstand grinders, industrial deburring and polishing machinery
• Applicable Belts & Abrasives: 2" wide ceramic, zirconia alumina, aluminum oxide, silicon carbide, and surface conditioning belts
• Sanding Application: Knife Hollow Bevel Grinding, Blade Edge Profiling, Rapid Stock Removal, Heavy Weld Seam Grinding, Flat Deburring & Finishing
• Suitable Workpiece Materials: High Carbon Tool Steel, Stainless Steel, Titanium, Carbon Steel, Cast Iron, Aluminum Alloys, Brass, and Hardwood

Key Features & Engineering Highlights

• Dynamic Balanced Cast Aluminum Core: True-running aluminum core blank minimizes machine vibration and chatter at high motor speeds, preventing belt tracking wander and flutter.
• High-Elasticity Vulcanized Rubber Tire: Industrial-grade synthetic rubber bonded under high temperature and pressure, offering superior wear resistance, elasticity, and heat tolerance.
• Versatile Dual Face Engineering: P-Type smooth face provides uniform surface finish for fine bevels and satin buffing; K-Type serrated face increases contact pressure per unit area for cooler, faster metal removal.
• Flexible Spindle Compatibility: Pre-installed precision sealed bearings or 25mm smooth bore accommodate common 1/2", 5/8", 12mm, 15mm, and 20mm grinder shafts.

Applications & Workshop Guidelines

The 6" (150 mm) contact wheel provides a tighter contact curvature than 8" or 10" wheels, making it the preferred choice for compact knife blade beveling, tighter concave profiling, edge sculpting, and precision metal deburring.