The Chelsea 447XSETX-H3XK is a 447 Series Power Take-Off built on a 6-bolt mounting pattern with a round output shaft (1-inch with 1/4-inch key). The 447 Series uses a one-piece input gear with a space between its two sets of gear teeth, a design that eliminates interference problems inside the transmission PTO opening without requiring an adapter plate. Shift options include wire/cable and mechanical. The series delivers up to 225 lb-ft intermittent torque and is rated at 43 HP at 1,000 RPM on the output shaft. Tapered bearings replace the needle bearings found in comparable designs, increasing load-bearing capability. A genuine Chelsea part, available from Pro Gear and Transmission.
Features
6-bolt mounting pattern, no adapter plate required
One-piece input gear design eliminates interference inside the transmission PTO aperture
Round output shaft: 1 inch with 1/4-inch key
Shift options: wire/cable or mechanical
Intermittent torque rating: 225 lb-ft (305 Nm) for the 447 Series
Tagged roller bearings replaced by tapered bearings for greater load capacity
Tech Specs
- Mounting Type: 6-Bolt
- Output Shaft Type: Round Shaft, 1 inch with 1/4-inch key
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque (Series): 225 lb-ft / 305 Nm (check application pages for actual rating)
- Continuous Torque: De-rate intermittent rating by 30% (check application pages for actual rating)
- Output Power (Series): 36-45 HP / 31-40 kW
- Shaft Power: 21 HP at 500 RPM; 43 HP at 1,000 RPM
- Lubricant: No Pressure Lube (X designation)
Additional Information
The Chelsea 447 Series shares its broad option set with the popular 442 Series and adds special provisions for installation on Eaton FS series and Nissan/UD MLS series transmissions, where an adapter or unique installation kit may be required. Twenty-six output options are available across the series, including Chelsea's 360-degree rotatable flange. Four internal speed ratios are offered. Typical application segments include aerial, vocational and municipal equipment, utility trucks, dump trucks and trailers, snow and ice removal, and fire and rescue vehicles. Part number 447XSETX-H3XK is also referenced as SP447XSETX-H3XK.Parts Manual: Chelsea 447 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
