收藏: Wheel Spacer Bushing

Precision steel reducing bushings and arbor adapter sets that allow grinding wheels, diamond wheels, and expandable drum wheels to fit correctly on bench grinder spindles of different diameters. Available in 6-piece sets for expandable drum wheel applications ($5.00), and 7-piece and 9-piece 1" bench grinder wheel spacer sets ($45.00) for comprehensive multi-size arbor compatibility. Eliminates blade wobble, minimizes vibration, and extends wheel life.

🔥 Shop Reducing Bushings – From $5.00

Product Format Guide

Bushing Selection Guide

Related Tools

• Bench Wheel Spacers — Spindle spacers for correct wheel lateral positioning on bench grinders
• Expandable Drum Wheels — Drum wheels used with these arbor adapters
• Diamond Grinding Wheels — Grinding wheels requiring correct arbor fit
• Saw Blade Washer Rings — Arbor bushing adapters for saw blade bore adaptation

Frequently Asked Questions

• Q: What size reducing bushing do I need for my lapidary grinder wheel?
  A: Measure two dimensions: the center bore diameter of your grinding wheel and the diameter of your grinder’s spindle. The reducing bushing fills the gap between these two sizes. For example, if your wheel has a 1" bore and your spindle is 5/8", you need a 1" to 5/8" reducing bushing. Our 6-piece set covers the most common lapidary arbor size combinations including 1/2", 5/8", and 3/4" bore reductions.
• Q: How do I stop my grinding wheel from wobbling on the bench grinder spindle?
  A: Grinding wheel wobble is almost always caused by an incorrect fit between the wheel bore and the spindle diameter. A correctly sized reducing bushing eliminates all radial play between the wheel and spindle. Ensure the bushing fits snugly in the wheel bore with no side-to-side movement and sits flush on the spindle with no rocking. A properly fitted reducing bushing eliminates wobble and runout for safe, accurate grinding.
• Q: Can I use reducing bushings with diamond grinding wheels on a lapidary machine?
  A: Yes — reducing bushings are safe and recommended for use with diamond grinding wheels on lapidary machines. A correctly fitted bushing ensures the diamond wheel runs concentric and true on the spindle, which is essential for even diamond wear and accurate grinding. Always verify the bushing provides a snug, play-free fit in both the wheel bore and on the spindle before operating.
• Q: What is the difference between a reducing bushing and a wheel spacer for a bench grinder?
  A: A reducing bushing adapts the wheel’s center bore to fit a smaller spindle diameter — it fills the radial gap between the bore and spindle. A wheel spacer controls the axial (side-to-side) position of the wheel along the spindle. Both are often needed together for correct wheel installation on lapidary bench grinders.
• Q: What arbor bushing sizes are included in the 6-piece lapidary grinder set?
  A: The 6-piece reducing bushing set covers the most common lapidary bench grinder and drum wheel arbor size combinations, including reductions for 1/2", 5/8", and 3/4" bore sizes. Designed specifically for expandable drum wheel and standard lapidary bench grinder applications.