Type of Load |
Driven |
Driver |
Electric motors, Light Turbines |
Internal Combustion Engine >=4 cylinders |
Internal Combustion Engine 1 – 3 cylinders |
Uniform No Vibration |
Agitators, conveyors, centrifugal pumps and compressors, centrifugal fans, generators and machine tools |
1 |
1.4 |
1.8 |
Moderate No Vibration |
Agitators, conveyors, hoisting equipment, bucket elevators, textile machines, mixers, printing machinery, sawmill machinery, rotary pumps |
1.4 |
2 |
2.4 |
Substantial Vibrations |
Hoisting equipment, calendars, crushers, dredgers, revolving furnaces, print presses, cutting presses, rotary compressors |
2 |
2.4 |
2.8 |
Heavy Shocks & Vibration |
Crushers, extruders, rubber mixers, reciprocating pumps, and conveyors, reciprocating compressors, vibrating screens |
2.4 |
2.8 |
3.2 |