Description
The Chelsea 680 Series Power Take-Off Assembly, part number 680XQAHX-V3RB or 680XQAHXV3RB, is built for medium- to heavy-duty applications requiring higher torque output. The 680 Series uses a cast iron housing with tapered cone bearings on the output shaft and tapered bearings on the input shaft for greater load-bearing capability over needle-bearing designs. This unit mounts via an 8-bolt PTO aperture and is compatible with Eaton/Fuller and Volvo/Mack transmissions, with a deep mount housing option available for Mack applications. The 1-1/4″ round output shaft with key delivers over 56 HP output, shifting via wire/cable mechanical operation. Shaft power ratings reach 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. Common applications include pneumatic blowers, dump trucks, refuse vehicles, and aerial equipment. Call us to confirm proper fit for your specific transmission.
Features
8-bolt mounting for broad coverage across manual transmissions with 8-bolt PTO apertures
Wire/cable mechanical shift with space-saving cover for maximum clearance under the truck
1-1/4″ round output shaft with key; output power exceeds 56 HP / 51 kW
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
Cast iron housing with tapered cone bearings on output shaft for extended service life in high-torque duty
Deep mount housing option supports Mack transmission applications
Tech Specs
- Intermittent Torque: 301-400 lb-ft (501+ Nm); 375 lb-ft / 508 Nm (check application pages for actual torque ratings)
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 36 HP / 27 kW (500 RPM), 71 HP / 53 kW (1,000 RPM), 107 HP / 80 kW (1,500 RPM)
- Output Shaft Type: 1-1/4″ Round with Key
- Mounting Type: 8-Bolt
- Compatible Transmissions: Eaton/Fuller, Volvo/Mack, Other
