The Chelsea 272ABKUP-B5RK or 272ABKUPB5RK is a 272 Series hot-shift power take-off assembly with a 6-bolt mounting configuration and a 1-1/4" round output shaft with a 5/16" key. Shift type is pneumatic (PowerShift pneumatic/hydraulic), and the unit includes an integral air control valve. The 272 Series supports continuous torque up to 300 lb-ft (407 Nm) and intermittent torque in the 201-300 lb-ft (401-500 Nm) range; check application pages for actual de-rated torque ratings. Shaft power output at 1,000 RPM reaches 57 HP (43 kW). Compatible transmission manufacturers include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and others. The 272 Series consolidates several earlier Chelsea medium-duty PTO lines into a single, flexible platform used in aerial, construction, towing and recovery, and water truck applications. Available from Pro Gear and Transmission. Call us to confirm proper fit for your specific transmission.
Features
6-bolt mounting configuration
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power output: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other transmission makes
Tech Specs
- Intermittent Torque: 201-300 lb-ft, 401-500 Nm
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Output Power: 56+ HP, 41-50 kW
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Transmission Manufacturer: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, Other
- Continuous Torque: 300 lb-ft, 407 Nm (De-rate 30% - Check Application Pages for Actual Torque Ratings)
- Shaft Power: 500 RPM: 29 HP (21 kW); 1,000 RPM: 57 HP (43 kW)
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
