Features
Ductile iron bearing cap rated 117% stronger than gray iron
O-ring sealing configuration between housing and bearing cap improves clamp load and reduces vibrational effects
Enhanced clutch pack with 80% thicker steel discs to resist premature tooth wear
Nine speed ratios including low and high speeds
Wet spline lubrication option provides 7 to 10 times greater shaft life
Electronic Overspeed Control (EOC) protects driven equipment; SmartStart reduces shock load at start-up
Positive stop for driveline outputs eliminates oil seal damage from coupling contact
Rotatable cast iron flanges reduce pump clearance interference issues
Hose included - no need to order separately
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic) - Hot Shift
- Transmission Compatibility: Allison automatic transmissions (10-bolt aperture)
- Continuous Operation: Yes
- Continuous Torque (Series Rating): 390 lb-ft (529 Nm) - check application pages for actual torque rating
- Intermittent Torque (Series Range): 301 to 400 lb-ft (501+ Nm)
- Output Power (Series): 56+ HP (51+ kW)
- Shaft Power: 37 HP at 500 RPM; 74 HP at 1,000 RPM
- Speed Ratios: Nine (includes low and high speeds)
- Lubricant Options: Pressure Lube (P) or Wet Spline (W)
- Output Types Available in Series: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Options in Series: SmartStart 1-1/4 in. round with 5/16 in. key, 3/4 in. 11-tooth pump spline, SAE B 7/8 in. 13-tooth pump spline, SAE C 1-1/4 in. 14-tooth pump spline, DIN 5462 pump spline, 1410 companion flange, DIN 120 flange, DIN 100 flange
- Part Number: 281GKFJW-N3RY or 281GKFJWN3RY
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
