Gear Motors | Parker

Parker’s gear motors are engineered to deliver exceptional efficiency, power density, and reliability across a wide range of industrial and mobile hydraulic applications. The product line includes high-performance aluminum gear motors for lightweight, compact installations and heavy-duty cast-iron gear motors designed for maximum durability in demanding environments.

Each Parker gear motor features precision-engineered components that provide smooth operation, long service life, and superior volumetric efficiency. With fixed-displacement designs, these motors are ideal for applications requiring consistent torque and speed, including construction, forestry, material handling, and agricultural equipment.

Parker’s modular, interlocking housing design ensures high endurance, leak-free performance, and easy serviceability—making these gear motors a dependable solution for high-duty-cycle systems that demand consistent power and long-term reliability.

031 Series

• Flow range to 38.4 gpm (145.4 lpm) per section
• Displacements from .985 to 3.94 cir (16.2 to 64.6 cc/rev)
• Operating pressures up to 200 bar (3,000 psi)
• Speeds up to 2,400 rpm
• Volumetric efficiencies up to 95%

 

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051 Series

• Flow range to 63 gpm (238.5 lpm) per section
• Displacements from 1.275 to 6.375 cir (21 to 105 cc/rev)
• Operating pressures up to 200 bar (3,000 psi)
• Speeds up to 2,400 rpm
• Volumetric efficiencies up to 95%

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076 Series

• Flow range to 121.4 gpm (459.5 lpm) per section
• Displacements from 3.07 to 12.3 cir (50 to 202 cc/rev)
• Operating pressures up to 200 bar (3,000 psi)
• Speeds up to 2,400 rpm
• Volumetric efficiencies up to 95%

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315 Series

• Flow range to 32 gpm (121 lpm) per section
• Displacements from .465 to 2.48 cir (7.6 to 40.6 cc/rev)
• Operating pressures up to 241 bar (3,500 psi)
• Speeds up to 3,000 rpm
• Volumetric efficiencies up to 98%

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330 Series

• Flow range to 40 gpm (151 lpm) per section
• Displacements from .985 to 3.94 cir (16 to 65 cc/rev)
• Operating pressures up to 241 bar (3,500 psi)
• Speeds up to 3,000 rpm
• Volumetric efficiencies up to 98%

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350 Series

• Flow range to 66 gpm (250 lpm) per section
• Displacements from 1.275 to 6.375 cir (21 to 105 cc/rev)
• Operating pressures up to 241 bar (3,500 psi)
• Speeds up to 3,000 rpm
• Volumetric efficiencies up to 98%

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365 Series

• Flow range to 93.5 gpm (354 lpm) per section
• Displacements from 2.79 to 9 cir (44 to 147.5 cc/rev)
• Operating pressures up to 241 bar (3,500 psi)
• Speeds up to 2,400 rpm
• Volumetric efficiencies up to 98%

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