PT Rotation Drives

Perfection Gear

Single Reduction High Efficiency Planetary Gearing with Parking Brake

The PT6500 Planetary Speed Reducer is a hydraulically driven swing drive with an internal brake. Due to the rugged construction of this swing drive it is able to withstand the high shock loads and overhung loads that are common to crane usage.

Key Features

  • Brake: Spring Applied and Hydraulic Released Parking Brake Brake Yield up to 5,000 in-lbs.
  • Output Pinion: Per Customer Specification
  • Brake Pressure: 3000 PSI
  • Maximum Release Pressure: Per Customer Specifications
  • Eccentric Ring: Optional


PERFECTION GEAR • PT6500 Planetary Speed Reducer
PERFECTION GEAR • PT9000 Planetary Speed Reducer

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Technical Overview

Size 6500 (Single Reduction) to 9000 (Double Reduction)
Ratio 6.5:1 to 36:1 or Per Customer Specification
Output Torque
25,500 to 37,500 Capacity
75,000 to 120,000 Output Yield
Output Pinion/Shaft Per Customer Specification
Input Option SAE “A” Mount;
2 Bolt, Keyed or Splined
Other Specifications Eccentric Ring Per Customer Specification
Spring Applied and Hydraulic Release Brake
Applications This product is used as a rotation device for cranes and any other applications where high efficiency planetary is required.