The Chelsea 272MBAJP-B3RF is a 272 Series hot shift power take-off assembly featuring a 6-bolt mounting configuration and air or hydraulic shift capability with an integral air control valve. The 272 Series supports up to 300 lb-ft of intermittent torque and is built for continuous-duty applications in aerial, construction, towing and recovery, and water truck service. Rotatable flanges allow flexible installation, and the wet-spline option extends PTO and pump shaft service life. The Smart Start feature handles high-torque start-up conditions. Part number 272MBAJP-B3RF or 272MBAJPB3RF. Call us to confirm proper fit for your application.
Features
272 Series 6-bolt hot shift PTO assembly
Air or hydraulic shift with integral air control valve
Intermittent torque rating up to 300 lb-ft (401-500 Nm)
Continuous-duty torque capability (derate 30% for continuous use)
Rotatable flanges for flexible mounting orientation
Wet-spline option for extended PTO and pump shaft life
Smart Start option for high-torque start-up conditions
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Air) or Hydraulic
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP (41-50 kW)
- Output Shaft Options: Round shaft 1 in. with 1/4 in. key; Round shaft 1-1/4 in. with 5/16 in. key
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
- Series Compatibility: Consolidates 230, 231, 236, 238, 270, and 271 Series
Additional Information
The Chelsea 272 Series consolidates six prior medium-duty hot shift PTO families (230, 231, 236, 238, 270, and 271 Series) into a single platform. The series offers nine speed ratios and eighteen shift options, making it adaptable across a wide range of transmission and application configurations. Common markets include aerial work platforms, construction equipment, towing and recovery, water trucks, material handling, and defense. The direct-mount outputs offer the optional Wet-Spline interface for reduced wear, while driveshaft outputs support the Smart Start option for demanding high-torque engagement conditions.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
