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For Hole Diameter.

Reducer Bushings for Bench and Pedestal Grinding Wheels Insert these bushings into the arbor hole of your grinding wheel to attach wheels to smaller diameter shanks.

The smallest shank diameter size listed is the smallest allowed for that size wheel. Straight Cup Grinding Wheel: 4"x2"x20mm.

Grinding Wheels for Straight Grinders.

Type 6, straight cup grinding wheels designed for tool & cutter grinders. (e.g. Deckel SO / SOE, Kuhlmann SU2, Alexander, Hasberg FSS, etc). Most preferred are the white, 80 grit, J-hardness, wheels for grinding of high-speed steel tools. For carbide tools, use a diamond cup Reducer Bushings. Reduce the inside diameter of a bearing to fit a particular axle size. Also known as spanner bushings, they also reduce wear on the axle when used in plain bores and with straight roller bearings.

All have a hole for lubrication. Washers slide over the bushing and add 3/32" to the hub length of your wheel.

OD Lg.

Use these wheels for light grinding, deburring, and sharpening. Wheels include one of each reducer bushing listed. The smallest bushing size shown is the smallest allowed for that size wheel. Wheels for steel and stainless steel are aluminum oxide, which is the most common abrasive used in grinding metal. Wheels for aluminum, brass, and bronze are silicon carbide, which cuts through soft. 6 Pieces 1 Inch Thick Reducing Bushing Adapters Steel Reducer Bushing for Bench Grinding Sanding Wheels Id 1/2 Inch Od 5/8 Inch, Id 5/8 Inch Od 3/4 Inch, Id 3/4 Inch Od 1 Inch (3 Sizes) out of 5 stars.

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