The Chelsea 281GGFJP-B5BD or 281GGFJPB5BD is a 281 Series hydraulically shifted (PowerShift) power take-off designed for 10-bolt automatic transmission apertures, including Allison applications. This series carries a continuous torque rating of 390 lb-ft and nine available speed ratios covering both low and high ranges. The ductile iron bearing cap is 117% stronger than gray iron, and the enhanced clutch pack uses 80% thicker steel discs to resist premature wear. An O-ring sealing configuration between the housing and bearing cap improves clamp load and reduces the vibrational effects of modern engine designs. Rotatable cast-iron flanges reduce interference issues, and the Positive Stop feature on driveline outputs eliminates oil seal damage from coupling. Electronic Overspeed Control (EOC) is available to protect driven equipment. Cross-references: 280GGFJP-B5BD or 280GGFJPB5BD. Call us to confirm proper fit for your application.
Features
10-Bolt mounting, hydraulic PowerShift operation for Allison and compatible automatic transmissions
Ductile iron bearing cap rated 117% stronger than gray iron
Enhanced clutch pack with 80% thicker steel discs to resist premature tooth wear
Nine speed ratios including low and high speeds
O-ring sealing configuration between housing and bearing cap to improve clamp load
Electronic Overspeed Control (EOC) protects driven equipment; SmartStart option reduces shock load at start-up
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Continuous Torque: 390 lb-ft (529 Nm), verify actual rating on application pages
- Speed Ratios: Nine, including low and high
- Transmission Compatibility: Allison automatic transmissions
- Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Lubrication: Pressure Lube or Wet Spline option
- Cross Reference: 280GGFJP-B5BD or 280GGFJPB5BD
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
