Low Speed High Torque Motor | Parker TB Series

Low Speed High Torque (LSHT) Motor | Parker TB Series

The Parker TB Series low speed high torque hydraulic motor is a compact, durable solution engineered for light-duty applications requiring smooth, efficient performance. With superior side load capacity, a high-pressure shaft seal, and exceptionally smooth low-speed operation, the TB Series is ideal for conveyors, gearboxes, winches, and boom rotation systems.

Built with DU and sintered copper/steel bushings and a 1-inch shaft, the TB Series handles dynamic side loads up to 1,100 lb at intermittent pressures up to 2,400 psi It delivers up to 4,700 lb-in of torque. The motor’s continuous oil flow across splines reduces wear and increases service life, while its innovative case-drain-free design simplifies installation and maintenance.

Manufactured in Greeneville, Tennessee, USA, Parker’s TB Series low speed high torque motors are built to the highest quality standards—offering reliable performance, long life, and proven dependability in demanding environments.

Technical Specifications

• Brand: Torqmotor™
• Displacement: 36 to 392 cm3/rev (Motor), 2.2 to 24.0 inch3/rev (Motor)
• Maximum Pressure Differential: 100 to 165 bar Intermittent (83 to 125 Continuous), 1450 to 2400 psi Intermittent (1200 to 1800 Continuous)
• Maximum Flow Rate: 34 to 57 L/min Intermittent (34 to 45 Continuous), 9 to 15 gal/min Intermittent (9 to 12 Continuous)
• Maximum Output Torque: 67 to 540 Nm Intermittent (48 to 440 Continuous), 596 to 4783 lb-inch Intermittent (427 to 3897 Continuous)
• Minimum Starting Torque: 50 to 434 Nm Intermittent (44 to 339 Continuous), 440 to 3845 lb-inch Intermittent (385 to 3000 Continuous)
• Maximum Operating Speed: 143 to 932 RPM at Intermittent Flow
• Shaft Diameter: 1.00 inch Nominal (other sizes available)

Key Benefits

• DU and sintered copper/steel bushings
• Robust construction for longer life
• Continuous oil flow across internal splines for longer life
• Superior side load capacity
• Smooth, extra low speed operation
• High pressure shaft seal is standard
• Innovative design eliminates the need for a case drain
• Dependability based on high quality design and manufacturing
• Designed and manufactured in Greeneville, TN USA

Examples of Suitable Applications

• Conveyers
• Gear Boxes
• Boom Rotate
• Food Processing
• Winches
• Augers
• Portable Irrigation Systems
• Post Hole Augers
• Specialty Harvesters Such as Potato, Tomato, Nut, Leafy Vegetable, Sugar, Cotton, Coffee and Grape
• Header Drives
• Snow Removal
• Salt and Sand Spreaders
• Oil and Gas Blender Trucks
• Car Washes
• Bulk Feed Trucks