The Chelsea 660 Series Power Take-Off Assembly, part number 660ZFDAX-W3XD or 660ZFDAXW3XD, is a 6-bolt unit built for medium to heavy-duty vocational applications. It uses a wire/cable mechanical shift and delivers an intermittent torque rating up to 375 lb-ft (508 Nm), verify actual rating against Chelsea application pages for your specific transmission. The 1-1/4" round output shaft with key fits Eaton/Fuller, Hino, and Volvo/Mack transmissions, among others. Shaft power output reaches 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. Cast iron bearing caps and one-piece gears contribute to the 660 Series' load-handling capability. Call us to confirm proper fit for your transmission and application.
The Chelsea 660 Series is suited for demanding vocational markets including aerial devices, dump trucks, service trucks, snow and ice removal equipment, and construction machinery. The 660 Series offers twenty-six output options, four internal speed ratios, and ten shift options. The cast iron housing and tapered cone bearings on the output shaft support heavy-duty load cycles. The tapered bearings on the input shaft, in place of needle bearings, provide greater load-bearing capability. Chelsea's 360-degree rotatable flange option is available within the 660 Series for optimal pump positioning. This unit fits applications requiring torque capacity beyond the Chelsea 442 Series.
Features
Chelsea 660 Series, 6-bolt mounting for most popular manual transmissions
Wire/cable mechanical shift type
Intermittent torque capacity up to 375 lb-ft (508 Nm), confirm rating on Chelsea application pages
1-1/4" round output shaft with key
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
One-piece gears and cast iron bearing caps for sustained load capability
Tech Specs
- Intermittent Torque: Up to 375 lb-ft / 508 Nm (check Chelsea application pages for actual rating by transmission)
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 6-Bolt
- Output Shaft Type: 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, Hino, Volvo/Mack, Other
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 660 Series is suited for demanding vocational markets including aerial devices, dump trucks, service trucks, snow and ice removal equipment, and construction machinery. The 660 Series offers twenty-six output options, four internal speed ratios, and ten shift options. The cast iron housing and tapered cone bearings on the output shaft support heavy-duty load cycles. The tapered bearings on the input shaft, in place of needle bearings, provide greater load-bearing capability. Chelsea's 360-degree rotatable flange option is available within the 660 Series for optimal pump positioning. This unit fits applications requiring torque capacity beyond the Chelsea 442 Series.
