Typical Diamond Wheel and CBN Wheel Speeds

Wheel Diameter RPM Range

3″   5200 – 8000
4″   4600 – 6500
5″   3600 – 5000
6″   3200 – 4200
7″   2600 – 3600
8″ 2300 – 3000
10″ 1800 – 2500

Formula: To calculate wheel speed in SFPM – Diameter (in ft) x 3.142 x RPM