Thirty by Best
1921 - 1925
Production
Best Thirty Power
24.8 kW
28.2 kW
1921 - 1925
| 1921 - 1925 |
| Agricultural Crawler tractor |
Nebraska Tractor Test 77
| Nebraska Tractor Test 77 | |
| 2-speed crawler May 9 - 20, 1921 Link: Nebraska Tractor Test 77 file | |
| Belt power (max): | 30.43 hp 22.7 kW |
| Drawbar performance | |
| Max power: | 24.53 hp 18.3 kW |
| Max pull: | 4343 lbs 1969 kg |
Nebraska Tractor Test 99
| Nebraska Tractor Test 99 | |
| 2-speed crawler September 11 - 24, 1923 Link: Nebraska Tractor Test 99 file | |
| Belt power (max): | 32.55 hp 24.3 kW |
| Drawbar performance | |
| Max power: | 25.96 hp 19.4 kW |
| Max pull: | 4930 lbs 2236 kg |
Nebraska Tractor Test 104
| Nebraska Tractor Test 104 | |
| 3-speed crawler September 15 - 22, 1924 Link: Nebraska Tractor Test 104 file | |
| Belt power (max): | 37.83 hp 28.2 kW |
| Drawbar performance | |
| Max power: | 33.21 hp 24.8 kW |
| Max pull: | 7563 lbs 3430 kg |
Best Thirty Engine
1921 - 1925
| 1921 - 1925 |
| Agricultural Crawler tractor |
Engine Detail
| Engine Detail | |
| Best | |
| gasoline | |
| 4-cylinder | |
| liquid-cooled | |
| Displacement: | 461 ci 7.6 L |
| Bore/Stroke: | 4.75x6.50 inches 121 x 165 mm |
| Rated RPM: | 850 |
Mechanical
1921 - 1925
| 1921 - 1925 |
| Agricultural Crawler tractor |
Transmissions overview
| Transmissions overview | |
| 2-speed gear | |
| 3-speed gear |
Transmission
| Transmission | |
| Type: | gear |
| Gears: | 2 forward and 1 reverse |
Speeds
| Speeds | |
Transmission
| Transmission | |
| Type: | gear |
| Gears: | 3 forward and 1 reverse |
Speeds
| Speeds | |
Dimensions & Tracks
3356 kg
1921 - 1925
| 1921 - 1925 |
| Agricultural Crawler tractor |
Best Thirty Tracks
| Best Thirty Tracks | |
| Size: | 43.75, 60.75-inch tracks |
Dimensions
| Dimensions | |
| Width: | 53.25 inches 135 cm |
| Height: | 59 inches 149 cm |
| Weight: | 7400 lbs 3356 kg |
Belt Pulley
30 cm
17 cm
765.96 meters/min
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