Gray Tractor
Gray Tractor 20-36
The Gray Tractor 20-36 is a standard-tread tractor built by Gray Tractor in Minneapolis, Minnesota, USA from 1922 to 1924. It features a Waukesha 6.5L 4-cylinder gasoline engine with liquid cooling, producing an estimated 36 hp belt power and 20 hp drawbar power. The tractor has a 2-speed gear transmission with 1 reverse, manual steering, and an open operator station. It weighs 6300 lbs and has a wheelbase of 104 inches. The tractor rides on 40x8 steel front tires and 54x54 steel rear tires. It was originally priced at $1,975 in 1922. The 20-36 model is related to the earlier 18-36 model produced from 1918 to 1921.
Power36 hp[B]
Founded1922 - 1924
Model20-36
Technical Specifications
Detailed specifications and technical data for Gray Tractor 20-36
Power
| Plows | 4 |
|---|---|
| Belt (claimed) | 36 hp (26.8 kW) |
| Drawbar (claimed) | 20 hp (14.9 kW) |
Tires
| Rear tire | 54x54 steel |
|---|---|
| Front tire | 40x8 steel |
Engine
| Type | gasoline |
|---|---|
| Model | Waukesha DU |
| Cooling | liquid-cooled inline |
| Cylinders | 4-cylinder |
| Rated RPM | 1000 |
| Bore/Stroke | 4.50x6.25 inches (114 x 159 mm) |
| Displacement | 398 ci (6.5 L) |
Dimensions
| Width | 81 inches (205 cm) |
|---|---|
| Height | 63 inches (160 cm) |
| Length | 174 inches (441 cm) |
| Weight | 6300 lbs (2857 kg) |
| Wheelbase | 104 inches (264 cm) |
Mechanical
| Drive | 3x1 drum drive |
|---|---|
| Steering | Manual steering |
| Operator station | Open operator station |
Production
| Type | Standard-tread tractor |
|---|---|
| Built in | Minneapolis, Minnesota, USA |
| Manufacturer | Gray Tractor |
| Original price | $1,975 in 1922 |
| Production years | 1922 - 1924 |
Belt Pulley
| Speed | 3000 ft/min (914.40 meters/min) |
|---|---|
| Width | 8 inches (20 cm) |
| Diameter | 11.5 inches (29 cm) |
Transmission
| Type | gear |
|---|---|
| Gears | 2 forward and 1 reverse |