The Chelsea 880QMMEX-D4AZ is an 8-bolt Power Take-Off from the Chelsea 880 Series, designed for heavy-duty, high-torque applications including bulk haulers, fire trucks, oil field equipment, aerial units, and large recovery trucks. The 880 Series mounts to manual transmissions with an 8-bolt aperture and features constant mesh input gears suited for both high and low speed operation. Output options in the 880 Series include SAE B, SAE C, and ISO 7652 pump flanges as well as driveline outputs. The series is rated for intermittent torque up to 500 lb-ft, with continuous operation available at a 30% de-rating. A removable shift cover simplifies backlash adjustment, and tapered cone bearings provide load-bearing durability. Available from Pro Gear and Transmission.
Features
8-bolt mounting for most manual transmissions with 8-bolt aperture
Constant mesh input gears for high and low speed, high torque operation
Intermittent torque rating up to 500 lb-ft; continuous operation with 30% de-rating
Lever control shift standard; air control shift optional
Removable shift cover for easier and more accurate backlash adjustment
Tapered cone bearings for reliable load-bearing performance
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Lever (standard); Air Control (optional)
- Intermittent Torque Rating: 500 lb-ft (678 Nm) - check application pages for actual rating
- Continuous Operation: Yes, with 30% de-rating
- Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Options: SAE B (7/8" - 13T), SAE BB (1" - 15T), SAE C (1-1/4" - 14T), DIN 5462 Pump Spline, 1410 Series Companion Flange
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 48 HP at 500 RPM; 95 HP at 1000 RPM
- Lubricant: Pressure Lube (P) or No Pressure Lube (X) variants available
- Compatible Transmissions: Allison, Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others including Eaton Endurant
Additional Information
The Chelsea 880 Series is suited for Oil and Gas, Aerial, Mining, On-Highway, and other mobile markets. Typical applications include bulk haulers, winch systems, fire trucks, oil field equipment, aerial platforms, and large truck recovery vehicles. The series features a rugged cast iron housing and supports dual-pump output, allowing a pump to be mounted on each end of the PTO.Parts Manual: Chelsea 880 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
