These telescoping bench wheel bushings by Pferd provide a method of reducing the wheel arbor to accommodate various spindle sizes. The bushing should be flush on both sides of the wheel, & should not interfere with the flanges. Made in Germany.
From the Manufacturer:
Established near Cologne, Germany in 1799, the Pferd brand name is synonymous with outstanding premium-quality tools & abrasives. Today, we manufacture more than 7,500 Pferd brand grinding, cutting & surface finishing tools, & a complete range of power & maintenance brushes.
Product Telescoping Sizes Thickness Model Pferd Telescoping Bushings for Bench Wheels - For 3/4" Thick Wheel 1" to 3/4", 5/8" to 1/2" 3/4" 69019