The Chelsea 660GSJAX-A3XD or 660GSJAXA3XD is a 6-bolt power take-off assembly from the Chelsea 660 Series, engineered for medium- to heavy-duty vocational applications including dump trucks, aerial devices, service trucks, and snow and ice removal equipment. Shift type is wire/cable mechanical. The output shaft is a 1-1/4" round with key. The 660 Series carries an intermittent torque rating up to 375 lb-ft (508 Nm) - verify the actual rating for your specific application on Chelsea's application pages. Compatible transmissions include Eaton/Fuller, Volvo/Mack, Hino, and other 6-bolt-mount units. Output power exceeds 56 HP, with shaft power rated at 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. Call us to confirm proper fit for your transmission and application.
The Chelsea 660 Series is suited for aerial, construction, vocational, and municipal equipment. Applications include blower and product pumps, aerial devices, service trucks, dump trucks and trailers, and snow and ice removal. The series offers four internal speed ratios, ten shift options, and twenty-six output configurations, including a 360-degree rotatable flange for flexible pump positioning. The cast iron housing and tapered cone bearings on the output shaft contribute to the series' torque capacity and service durability. The input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability. Related Chelsea documentation includes the 660 Series Parts List (HY25-2660-M1_US) and the 660 Series Owner's Manual.
Features
6-bolt mounting fits Eaton/Fuller, Volvo/Mack, Hino, and other compatible transmissions
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Intermittent torque capacity up to 375 lb-ft (508 Nm) - check application pages for your specific rating
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
One-piece gears, cast iron bearing caps, and greaseable shaft options for extended service life
Tech Specs
- Intermittent Torque: 375 lb-ft / 508 Nm (check application pages for actual rating by transmission)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP / 51+ kW
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Hino, Other 6-bolt
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 6-Bolt
- Shaft Power: 36 HP / 27 kW (500 RPM), 71 HP / 53 kW (1000 RPM), 107 HP / 80 kW (1500 RPM)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 660 Series is suited for aerial, construction, vocational, and municipal equipment. Applications include blower and product pumps, aerial devices, service trucks, dump trucks and trailers, and snow and ice removal. The series offers four internal speed ratios, ten shift options, and twenty-six output configurations, including a 360-degree rotatable flange for flexible pump positioning. The cast iron housing and tapered cone bearings on the output shaft contribute to the series' torque capacity and service durability. The input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability. Related Chelsea documentation includes the 660 Series Parts List (HY25-2660-M1_US) and the 660 Series Owner's Manual.
