The Chelsea 272XBAJP-J3RK is a 6-bolt hot shift power take-off from the Chelsea 272 Series, designed for medium-duty applications across aerial, construction, towing and recovery, and water truck markets. The 272 Series supports intermittent torque ratings from 201 to 300 lb-ft (401-500 Nm) and delivers 56 or more horsepower output. Shift options include pneumatic (air) or hydraulic, with an integral air control valve included. The series offers rotatable flanges, wet-spline output capability for extended component life, and Smart Start for high-torque start-up conditions. Output shaft options span round shaft configurations with 1-inch or 1-1/4-inch keys. Available from Pro Gear and Transmission.
Features
6-bolt mounting configuration
Pneumatic (air) or hydraulic shift with integral air control valve
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
Output power: 56+ HP (41-50 kW)
Round shaft output: 1 in. with 1/4 in. key or 1-1/4 in. with 5/16 in. key
Wet-spline and Smart Start options available in the 272 Series
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Integral Air Control Valve: Included
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP (41-50 kW)
- Output Shaft Type: Round Shaft - 1 in. with 1/4 in. key; Round Shaft - 1-1/4 in. with 5/16 in. key
- Continuous Torque: De-rated 30% from intermittent rating (see application pages for actual ratings)
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
Additional Information
The Chelsea 272 Series consolidates the 230, 231, 236, 238, 270, and 271 Series into a single medium-duty hot shift platform. The 272 Series offers nine speed ratios and 18 shift configurations. Direct-mount outputs are available with optional wet-spline technology for longer PTO and pump shaft service life. Driveshaft outputs are available with the Smart Start option, designed for high-torque engagement conditions. Markets served include aerial, construction equipment, towing and recovery, water trucks, defense, and material handling.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
