Bench Wheel Spacers

Bench Wheel Spacers – Steel Spacer & Arbor Adapter Sets for Lapidary Bench Grinders

Precision steel bench wheel spacer and arbor adapter sets for correctly positioning and fitting grinding wheels on lapidary bench grinder spindles. The 1" spacer sets (7-piece and 9-piece) provide a comprehensive range of spacer thicknesses from 5mm to 50mm for precise lateral wheel positioning on 1" (25.4mm) spindles. The 6-piece reducing bushing sets adapt grinding wheel bore sizes to fit your machine’s spindle diameter correctly. Eliminates wheel wobble, runout, and vibration for safe, accurate grinding.

🔥 Shop Bench Wheel Spacers – From $5.00

Product Format Guide

Product Pieces Spindle / Thickness Range Price Best For
Bench Grinder Wheel Arbor Reducing Bushing Adapters 6 pcs 1/2", 5/8", 3/4" bore adapters $5.00 Adapting wheel bore to spindle diameter
1" Bench Grinder Wheel Spacer Set 7 pcs 1" (25.4mm) spindle, various thicknesses $45.00 Lateral wheel positioning on 1" spindles
1" Bench Grinder Wheel Spacer Set 9 pcs 1" spindle, 5–50mm thicknesses $45.00 Full-range lateral positioning, maximum versatility

Spacer Selection Guide

Problem Solution Product Needed
Wheel bore too large for spindle Fill radial gap between bore and spindle 6-piece reducing bushing set
Wheel positioned too far from machine body Add spacer between wheel and inner flange 7 or 9-piece spacer set
Wheel wobbles or vibrates during grinding Correct bore fit + lateral positioning Both bushing and spacer sets
Multiple wheel sizes on one machine Comprehensive thickness range 9-piece spacer set (5–50mm)

Compatible Applications

  • Lapidary bench grinders — correct lateral positioning of diamond and sintered grinding wheels on 1" spindles
  • Cabbing machines — multi-wheel setups requiring precise wheel spacing between grinding stages
  • Diamond grinding wheels — eliminating axial play and runout for even diamond wear
  • Expandable drum wheel mounting — correct spindle positioning for 6" and 8" drum wheel assemblies
  • Glass grinders — wheel positioning on Inland, Glastar, and standard glass grinder spindles
  • Any 1" bench grinder spindle — 5mm to 50mm spacer range covers all standard lapidary machine configurations

Related Tools

Frequently Asked Questions

  • Q: How do I stop my bench grinder wheel from wobbling or vibrating during lapidary grinding?
    A: Bench grinder wheel wobble is most commonly caused by incorrect wheel-to-spindle fit. A correctly sized wheel spacer and reducing bushing combination eliminates radial play and ensures correct lateral positioning for smooth, vibration-free operation.
  • Q: What thickness bench wheel spacer do I need for my lapidary grinder?
    A: Measure the gap between the wheel face and the inner flange when the wheel is seated on the spindle — this gap is the spacer thickness you need. The 9-piece set covers 5mm to 50mm for virtually any lapidary bench grinder configuration.
  • Q: Can I use bench wheel spacers with diamond grinding wheels on a lapidary machine?
    A: Yes — bench wheel spacers are safe and recommended for use with diamond grinding wheels. Correct wheel positioning ensures even diamond wear and prevents the wheel from contacting the flanges during grinding.
  • Q: What is the difference between a bench wheel spacer and a reducing bushing?
    A: A reducing bushing fills the radial gap between the wheel bore and spindle (prevents side-to-side movement). A bench wheel spacer controls the axial position of the wheel along the spindle (lateral positioning). Both are often needed together for correct wheel installation.