Gearboxes

PT Tech is known our markets for our custom gearboxes, going up to 1000 Hp (746 kilowatt).  As a trusted solutions provider, PT Tech has experience in many different forms of drivetrains. Whether you need diesel driven, motor driven or hybrid, PT Tech can engineer the optimal solution for your equipment. 

Gearbox Brake Combination

Enclosed Wet Brake on Intermediate Shaft

  •  Eliminates alignment and leaky seal issues 

  •  Allows for flow through cooling 

  •  Same brake regardless of gearbox ratio 

  •  Brake maintenance is easy 

  •  Excellent thermal capacity 

Increased Durability

  •  Bigger shafts 

  •  Metallurgically stronger shaft material 

  •  Improved housing for greater strength and rigidity 

Retrofits Old Gearboxes

  •  Same mounting footprint

  •  Similar shape and size

  •  Same ratios

PTT-477A-0

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Technical Specs

Gear Ratio 3.35:1
Parking Brake Torque 3,710 lb·ft 5,030 Nm
Service Brake Torque at 1,300 psi 2,222 lb·ft 3,013 Nm
Min. Parking Brake Release Pressure 1,000 psi 68.9 bar
Max. Parking Brake Release Pressure 1,500 psi 103.4 bar
Horsepower at 1,500 rpm 75 hp 55.9 kW

PTT-477B-0

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Technical Specs

Gear Ratio 4.65:1  
Parking Brake Torque 5,500 lb-ft 6,847 Nm
Service Brake Torque at 1,300 psi 3,025 lb·ft  
Min. Parking Brake Release Pressure 1,000 psi 68.9 bar
Max. Parking Brake Release Pressure 1,500 psi  
Horsepower at 1,500 rpm 75 hp 55.9 kW

PTT-477C-0

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Technical Specs

Gear Ratio 5.81:1  
Parking Brake Torque 6,435 lb-ft 8,725 Nm
Service Brake Torque at 1,300 psi 3,855 lb·ft 5,226 Nm
Min. Parking Brake Release Pressure 1,000 psi 68.9 bar
Max. Parking Brake Release Pressure 1,500 psi 103.4 bar
Horsepower at 1,500 rpm 75 hp 55.9 kW