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Best Thirty

Best Thirty tractor
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The Best Thirty is an agricultural crawler tractor produced by Best from 1921 to 1925. It was built in San Leandro, California, USA. It features a Best 7.6L 4-cylinder liquid-cooled gasoline engine rated at 850 RPM. The tractor has transmission options of 2-speed or 3-speed gearboxes with 1 reverse gear. It delivers tested drawbar power of 33.21 hp and belt power of 37.83 hp. The tractor weighs 7400 lbs and has dimensions of 53.25 inches width and 59 inches height. It has a crawler drive and an open operator station. The belt pulley diameter is 12 inches with a width of 7 inches, running at 800 RPM and a belt speed of 2513 ft/min.
Best ThirtyBest tractorcrawler tractor1921 tractor1925 tractorBest 7.6L engineagricultural tractortractor specifications
Power33 hp[B]
Founded1921 - 1925
ModelBest Thirty

Technical Specifications

Detailed specifications and technical data for Best Thirty

Power

Plows:4
Belt (tested):37.83 hp (28.2 kW)
Drawbar (tested):33.21 hp (24.8 kW)

Engine

Make:Best
Type:gasoline
Cooling:liquid-cooled
Cylinders:4-cylinder
Rated RPM:850
Bore/Stroke:4.75x6.50 inches (121 x 165 mm)
Displacement:461 ci (7.6 L)

Dimensions

Width:53.25 inches (135 cm)
Height:59 inches (149 cm)
Weight:7400 lbs (3356 kg)

Mechanical

Drive:crawler
Operator station:Open operator station

Production

Type:Agricultural Crawler tractor
Built in:San Leandro, California, USA
Years produced:1921 - 1925

Belt Pulley

RPM:800
Speed:2513 ft/min (765.96 meters/min)
Width:7 inches (17 cm)
Diameter:12 inches (30 cm)

Transmission

Type:gear
Gears:2 forward and 1 reverse
Alternate Gears:3 forward and 1 reverse
Transmission options:2-speed gear, 3-speed gear