Spindle Types
Belt Driven- (similar to basic spindle design)
Spindle shaft is held with bearings
Supported by Spindle housing
Spindle shaft uses tool taper, drawbar, and tool release system
Power and rotation uses external motor
Advantages –
Reasonable Cost- relatively low
Variety of Characteristics- specifications can be modified, vary speed ranges
High Power and Torque Possible- large motor can be used
Integral Motor- does not rely on external motor, motor is part of shaft and housing
Rotate at higher speeds as a uniform unit without limitations
Spindle shat includes motor element and tooling system
Non ventilated, ventilated, liquid cool
Advantages –
Smaller machine inventory, require less space than belt driven
More powerful the motor the higher the speed
