The Chelsea 221XEAKX-M5XQ or 221XEAKXM5XQ is a Power Take-Off from Chelsea's 221 Series, a 6-bolt mounted PTO built for low-speed, heavy-duty applications including dump trucks, tow and recovery, and aerial equipment. The 221 Series is compatible with Allison, Eaton/Fuller, and Volvo/Mack transmissions and supports wire/cable or mechanical shift types. The cast iron housing uses tapered cone output bearings rather than needle bearings for greater load-bearing capability. The series supports a range of output configurations including SAE A, SAE B, and SAE C pump flanges, driveline output, and multiple shaft types. Continuous operation is rated with a 30% de-rating. Call us to confirm proper fit for your application.
Features
Chelsea 221 Series Power Take-Off, part number 221XEAKX-M5XQ or 221XEAKXM5XQ
6-bolt mounting configuration
Intermittent torque rating up to 250 lb-ft (339 Nm) - check application pages for actual rating
Cast iron housing with tapered cone output bearings for high load capacity
Compatible with Allison, Eaton/Fuller, and Volvo/Mack transmissions
Supports wire/cable and mechanical shift types
Multiple output options including SAE A, SAE B, SAE C pump flanges and driveline
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque: Up to 250 lb-ft (339 Nm) - verify actual rating for application
- Output Power: 46-55 HP / 31-40 kW
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM
- Continuous Operation: Yes, with 30% de-rating
- Output Types: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Options: Round Shaft (1-1/4" - 5/16" Key), Tapered Shaft (1-1/4" w/ Keyway), SAE A (5/8" - 9T) Pump Spline, SAE B (7/8" - 13T) Pump Spline, SAE BB (1" - 15T) Pump Spline, SAE C (1-1/4" - 14T) Pump Spline
- Housing: Cast Iron
- Lubricant Options: Pressure Lube or No Pressure Lube
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
- NMFC Code: 128520 (Hydraulic PTOs, Pumps, Motors)
