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Research pertaining to the Bulldozer.
- Caterpillar D3 - 30,000 lb, 63 hp - drawbar power?
_______________________________________ Well designed bulldozers develop a tractive force of 80-90% of their weight under favorable soil conditions. Tractive force minus force needed for bulldozers rolling resistance gives drawbar pull. Bastelmike 20.1.2012
Wide with two Power Cubes
Power Cube Interconnections
6 Way Blade Design
This table indicates that 100-20 double roller chain coupling can accommodate 77,000+ inch pounds of force, or about 5000 pounds of force at a 15 inch diameter of a bulldozer wheel. This indicates 20,000 pounds of pushing force in 4 wheel drive configuration - as a scaling of the LifeTrac design strategy.
- See also [wikipedia on roller chain https://secure.wikimedia.org/wikipedia/en/wiki/Roller_chain]