The Chelsea 281LDFJW-B5TK is a 281 Series hydraulically shifted hot shift Power Take-Off built for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar applications. It delivers a continuous torque rating of 390 lb-ft and supports continuous operation duty cycles. The 281 Series features a ductile iron bearing cap rated 117% stronger than gray iron, an o-ring sealing configuration between the housing and bearing cap for improved clamp load, and clutch pack steel discs that are 80% thicker than the predecessor 280 Series. Rotatable cast iron flanges improve pump clearance, and an Electronic Overspeed Control option protects driven equipment. A genuine Chelsea part from Pro Gear and Transmission.
Features
281 Series hydraulically shifted PowerShift PTO for 10-bolt automatic transmissions
Compatible with Allison and Caterpillar automatic transmission applications
Continuous torque rating: 390 lb-ft; rated for continuous operation duty cycles
Ductile iron bearing cap, 117% stronger than the gray iron cap used in the predecessor 280 Series
O-ring sealing between housing and bearing cap improves clamp load and reduces vibration effects
Clutch pack steel discs are 80% thicker than predecessor for resistance to premature tooth wear
Tech Specs
- Series: Chelsea 281 Series
- Shift Type: Hydraulic (PowerShift) Hot Shift
- Mounting: 10-Bolt aperture
- Continuous Torque: 390 lb-ft (529 Nm)
- Continuous Operation: Yes
- Transmission Compatibility: Allison and Caterpillar automatic transmissions
- Output Options: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Options: 1-1/4" round shaft with 5/16" key (SmartStart), 3/4"-11T pump spline, SAE B 7/8"-13T pump spline, SAE C 1-1/4"-14T pump spline, DIN 5462 pump spline, 1410 companion flange, DIN 120 flange, DIN 100 flange
- Speed Ratios: Nine available (including low and high speeds)
- Lubrication: Pressure lube and wet spline options available
