The Chelsea 221ZLDAX-A5XE or 221ZLDAXA5XE is a 6-bolt Power Take-Off assembly from the Chelsea 221 Series, designed for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. It uses a wire/cable mechanical shift and mounts to Allison, Eaton/Fuller, Volvo/Mack, Hino, and other compatible transmissions. The 1-1/4" round output shaft with key delivers shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM, with an intermittent torque rating in the 201-300 lb-ft range (check application pages for the actual rating for your configuration). The cast iron housing is available in standard or low-profile versions, and greaseable pump shafts help reduce spline fretting and corrosion. Call us to confirm proper fit for your application.
The Chelsea 221 Series PTO features a cast iron housing and tapered cone output shaft bearings for strong load-bearing capability under demanding duty cycles. Tapered output bearings replace needle bearings to handle greater radial and axial loads. The series supports twenty-six output options including a 360-degree rotatable flange, three internal speed ratios, and multiple shift configurations. A self-lube option is available for transmissions that have difficulty delivering lubrication to the PTO. Continuous operation is supported with a 30% de-rating. Typical markets include aerial, vocational and municipal equipment, dump trucks, and tow and recovery. Part number 221ZLDAX-A5XE is also referenced as SP221ZLDAX-A5XE in some catalog systems.
Features
6-bolt mounting for compatibility with Allison, Eaton/Fuller, Volvo/Mack, Hino, and other transmissions
Wire/cable mechanical shift operation
1-1/4" round output shaft with keyway
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Available in standard or low-profile housing to maximize under-truck clearance
Greaseable pump shafts to resist spline fretting and corrosion
Tech Specs
- Intermittent Torque: 201-300 lb-ft / 301-400 Nm (see application pages for actual rating for this configuration)
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with Key
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Hino, and other applications
- Output Power: 46-55 HP / 31-40 kW
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- Housing: Standard or low-profile
Additional Information
The Chelsea 221 Series PTO features a cast iron housing and tapered cone output shaft bearings for strong load-bearing capability under demanding duty cycles. Tapered output bearings replace needle bearings to handle greater radial and axial loads. The series supports twenty-six output options including a 360-degree rotatable flange, three internal speed ratios, and multiple shift configurations. A self-lube option is available for transmissions that have difficulty delivering lubrication to the PTO. Continuous operation is supported with a 30% de-rating. Typical markets include aerial, vocational and municipal equipment, dump trucks, and tow and recovery. Part number 221ZLDAX-A5XE is also referenced as SP221ZLDAX-A5XE in some catalog systems.
