Examples of applications with different load factors:
Uniform: Centrifugal pumps, fans, printing presses, conveyor belts with uniform load. Moderate Shock: Grain augers, grain dryers, floor sweepers, conveyors with variable loads. Heavy Shock: Mowers, roto tillers, snow blowers, potato and sugar beet diggers.

RECOMMENDED RPM
The maximum rpm recommended in the tables is determined by the pitch line velocity of the gear. 1,500 surface feet per minute is the maximum recommended pitch line velocity for straight bevel gears. Straight bevel gears can be run at higher surface feet per minute at reduced ratings and increased noise levels. 2,500 surface feet per minute is the maximum recommended pitch line velocity for spiral bevel gears. This is the point where splash lubrication may become ineffective. Higher surface footages can be obtained with forced lubrication.

LUBRICANT
Curtis Machine Company recommends AGMA 5 EP Lubricant.

THERMAL CAPACITY
The thermal capacity of the unit is the maximum capacity at which a unit will operate without exceeding an operating temperature of 220 degrees F. Under certain conditions of high load and high rpm, the thermal capacity can be less than the mechanical capacity. If 220 degrees F is exceeded, please contact the factory.