The Chelsea 680XSDAX-A5AF or 680XSDAXA5AF is a medium- to heavy-duty Power Take-Off from the Chelsea 680 Series, built for 8-bolt PTO aperture manual transmissions including Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others. The 680 Series features a cast iron housing and tapered cone bearings on the output shaft for strength in higher-torque applications such as pneumatic blowers. Input shaft tapered bearings replace needle bearings for greater load capacity. The series supports four internal speed ratios, output options spanning SAE A, SAE B, SAE BB, and SAE C pump flanges, plus driveline output, and ten shift configurations including wire/cable and mechanical. Continuous operation is supported with a 30% de-rating. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt mounting for compatibility with most manual transmission applications
Cast iron housing with tapered cone bearings on the output shaft
Input shaft uses tapered bearings for greater load-bearing capability versus needle bearings
Shift options include wire/cable and mechanical configurations
Output options include SAE A, SAE B, SAE BB, and SAE C pump flanges, plus driveline
Continuous operation capable with 30% de-rating; deep mount housing option available for Mack applications
Tech Specs
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
- Shift Type: Wire/Cable, Mechanical
- Output Flanges: SAE A, SAE B, ISO 7652, Driveline
- Output Shaft Options: SAE A (5/8 in. - 9T), SAE B (7/8 in. - 13T), SAE BB (1 in. - 15T), SAE C (1-1/4 in. - 14T), Round Shaft (1-1/4 in. - 5/16 in. Key), 1410 Companion Flange
- Intermittent Torque Rating: 301 to 400 lb-ft (series; check application pages for actual rating)
- Continuous Operation: Yes, with 30% de-rating
- Lubrication: No Pressure Lube (X designation)
- Output Power: 56+ HP / 51+ kW
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
