Best Thirty
The Best Thirty is a tractor produced by Best. It is equipped with a 461 ci 7.6 L engine. Transmission: 3 forward and 1 reverse. Drive type: crawler. Operating weight: 7400 lbs 3356 kg.
Drive & Traction
crawler
Fuel & Capacities
Gasoline
Transmission
3 forward and 1 reverse
Operating Weight
7400 lbs
3356 kg
Overview
 | 1921 - 1925
Agricultural Crawler tractor |
|---|
Production | |
|---|---|
Manufacturer | Best |
Agricultural Crawler tractor | |
Built in San Leandro, California, USA | |
Best Thirty Engine | |
|---|---|
Best 7.6L 4-cyl gasoline | |
Engine details ...  |
Best Thirty Power | |
|---|---|
Plows | 4 |
Drawbar (tested) | 33.21 hp
24.8 kW |
Belt (tested) | 37.83 hp
28.2 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | crawler |
Open operator station. | |
Dimensions & Tracks | |
|---|---|
Weight | 7400 lbs
3356 kg |
Tracks | |
Full dimensions and tracks ...  | |
Belt Pulley | |
|---|---|
Diameter | 12 inches
30 cm |
Width | 7 inches
17 cm |
RPM | 800 |
Speed | 2513 ft/min
765.96 meters/min |
Engine
Engine Detail — 461 ci / 7.6 L Gasoline
Manufacturer | Best |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 461 ci
7.6 L |
Bore/Stroke | 4.75x6.50 inches
121 x 165 mm |
Rated RPM | 850 |
Transmission
Transmission options | |
|---|---|
2-speed gear | |
3-speed gear |
Transmission — 2 forward and 1 reverse gear
Type | gear |
Gears | 2 forward and 1 reverse |
 | |
Transmission — 3 forward and 1 reverse gear
Type | gear |
Gears | 3 forward and 1 reverse |
 | |
Dimensions
Best Thirty Tracks |
|---|
Dimensions | |
|---|---|
Width | 53.25 inches
135 cm |
Height | 59 inches
149 cm |
Weight | 7400 lbs
3356 kg |
Tests
Tractor Tests | |
|---|---|
NTTL 77: 2-speed crawler | |
NTTL 99: 2-speed crawler | |
NTTL 104: 3-speed crawler |
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 | |
|---|---|
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 | |
|---|---|
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 |
Photos
Best Thirty
Best Thirty Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Best Thirty.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
Related models
Best Sixty
- Power:
- 62.2
- Production years:
- 1919 - 1925
Best 75
- Power:
- 83.3
- Production years:
- 1913 - 1924