Hole sizes shown are the minimum diameter recommended for the various wheel sizes listed and wheels will be supplied this way unless larger holes are specified on your order. Wheels with larger holes can be ordered at the same price, providing hole diameter is a multiple of 1/8" and does not exceed 1-1/4". For other hole sizes, request pricing.

Maximum Safe Speeds in Revolutions Per Minute: 1-1/2" dia. - 15,000; 2" - 10,500; 2-1/2" - 8,300; 3" - 7,000; 4" - 5,250; 5" - 4,200; 6" - 3,600; 7" - 3,000; 8: - 2,600; 10" - 2,100. These speeds are based on 5,500 Surface Feet Per Minute. Best results are usually obtained at 30% to 80% of Maximum Safe Speed. Use light work pressure.