Best
Best Thirty
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.
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 |