The Chelsea 660GRAHX-A3RK or 660GRAHXA3RK is a 660 Series Power Take-Off built for medium- to heavy-duty vocational work. It mounts on 6-bolt transmissions compatible with Eaton/Fuller, Volvo/Mack, Hino, and other manufacturers, and shifts via wire/cable mechanical actuation. The output shaft is a 1-1/4" round, available with or without a keyway. Intermittent torque capacity for the 660 Series reaches 375 lb-ft (508 Nm), verify your specific application rating before installation. Shaft power ratings for the series run 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. One-piece gears and cast iron bearing caps give this unit its load-handling character. Typical applications include dump trucks, aerial devices, service trucks, and snow and ice removal equipment. Call us to confirm proper fit for your application.
Features
6-bolt mounting fits Eaton/Fuller, Volvo/Mack, Hino, and other manual transmissions
Wire/cable mechanical shift actuation
1-1/4" round output shaft, with or without keyway
Intermittent torque capacity up to 375 lb-ft (508 Nm) for the 660 Series, confirm actual rating for your application
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
One-piece gears, cast iron bearing caps, and greaseable shaft options
Tech Specs
- Intermittent Torque: 375 lb-ft / 508 Nm (Check Application Pages for Actual Torque Ratings)
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round; 1-1/4" Round with Key
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 36 HP (500 RPM) / 71 HP (1,000 RPM) / 107 HP (1,500 RPM); 27 kW (500 RPM) / 53 kW (1,000 RPM) / 80 kW (1,500 RPM)
- Compatible Transmission Manufacturers: Eaton/Fuller, Volvo/Mack, Hino, Other
- Lubricant: No Pressure Lube (X designation)
Additional Information
Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
