Expander Wheels – Tapered Bore

These rubber expander wheels are designed for use on bench polishers or grinders with our abrasive belts, providing smooth, controlled polishing, grinding, and deburring on metals and plastics. The wheel expands during rotation, securely holding the belt for consistent contact, allowing precision work without the need for a dedicated belt linishing machine. Flexible and affordable, these wheels are ideal for accurate finishing and surface preparation in precision engineering applications. Key Features Precision-Made Rubber Wheels: Designed specifically to fit abrasive belts. Consistent Belt Tension: Expands under centrifugal force to grip belts firmly. Multiple Sizes Available: Perfect for different workshop needs. 150mm x 38mm – ideal for using with a polisher with pigtails or tapered mandrels on the ends. Run at 4,500 rpm max. Takes 475 x 38mm belts. 90mm x 50mm – ideal for portable grinders, when operating with no load run at less than 6,000 rpm. Takes 289mm x 50mm belts. Easy to Use: Quick belt changes with minimal downtime. Long-Lasting & Reliable: Built for demanding industrial environments. Benefits Achieve professional, even finishes across metals, plastics, and composites. Compatible with multiple belt grits for all stages of finishing. Cost-effective — reduces belt slippage and extends belt life. Works seamlessly in aerospace, automotive, and metalworking industries. Applications Deburring & Surface Preparation before coating, plating, or painting. Polishing & Finishing metal parts to precise tolerances. Ideal for tool rooms, engineering workshops, and manufacturing facilities. Frequently Asked Questions (FAQS) Q: Are these wheels compatible with all abrasive belts?A: They’re designed specifically for abrasive belts in sizes 475mm x 40mm and 289mm x 50mm. Q: How do the wheels grip the belts?A: As the wheel spins, it expands slightly, securing the belt in place for smooth, consistent operation. Q: Can I use them on any machine?A: Yes, they fit most bench grinders and polishing lathes with standard arbor sizes. Q: Do the wheels require maintenance?A: Minimal maintenance is required — simply keep them clean and free of debris.