Parker TB TE TG Series Orbital Motor | TB0230 TE0260 TG0195 TG0785 | High Torque Low Speed

Chengyuan Hydraulic offers premium TB, TE, and TG Series low-speed high-torque (LSHT) orbital hydraulic motors, precision-engineered to perfectly match Parker (formerly Ross) industrial and mobile equipment standards. This comprehensive selection ranges from the light-duty, compact TB/TE variants to the ultra-heavy-duty TG series, highlighting precise model configurations: TB0230MS220AAAB, TE0260CW101AAAB, TG0195MS051AAAA, and the large-displacement TG0785US030AAAA.

Serving as the mechanical heart of hydrostatic drive systems, Chengyuan ensures 100% Drop-in Interchangeability for all mounting flanges, shafts (splined or keyed), and porting arrangements compared to original Parker units. Backed by our rigorous 100% Simulation Load Testing, each motor is verified for starting torque, volumetric efficiency, and high-pressure shaft seal integrity, ensuring exceptional torque stability under severe loads.

Technical Specifications 

• Product Series & Models: TB Series (TB0230), TE Series (TE0260), TG Series (TG0195, TG0785)

• Displacement: TB0230 (228 $cm^3$/rev), TE0260 (252 $cm^3$/rev), TG0195 (196 $cm^3$/rev), TG0785 (786 $cm^3$/rev)

• Continuous Pressure Rating: 140 bar (TB/TE) to 200 bar (TG)

• Max Intermittent Pressure: 175 bar (TB/TE) up to 280 bar peak (TG Series)

• Max Continuous Flow: 57-75 L/min for TB/TE series, up to 115 L/min for TG series

• Max Output Torque: TG0195 delivers 530 Nm continuous; TG0785 reaches up to 1250 Nm continuous (1490 Nm intermittent)

• Max Continuous Speed: TB0230 (248 rpm), TE0260 (291 rpm), TG0195 (567 rpm), TG0785 (145 rpm)

• Drive/Control Mechanism: Heavy-duty splined drive link coupled with a precision rotor/stator set (Roller-vane profile)

• Weight: TB/TE Series (approx. 6.7-7.5 kg), TG Series (approx. 14.2-19.5 kg)

Key Technical Advantages:

• Heavy-Duty Roller Bearings (TG Series): Unlike standard light-duty orbital motors, the TG series (e.g., TG0195/TG0785) integrates heavy-duty needle roller bearings on both sides of the drive shaft. This design absorbs high axial and radial external forces directly, eliminating the need for auxiliary outboard bearings in wheel or winch drives.

• High-Pressure Shaft Seal Technology: Equipped with an advanced high-pressure composite shaft seal, the housing can withstand backpressures up to 150 bar intermittently without requiring an external case drain line. This simplifies hydraulic plumbing and prevents seal blowout caused by sudden backpressure spikes.

• Advanced Roller-Vane Geometry: The internal rotor/stator profiles are CNC ground to micro-tolerances and paired with hydrodynamic lubrication paths. This achieves a starting torque efficiency of over 85% and superior low-speed stability, entirely eliminating the “crawling” or cogging effect below 10 rpm.

• Ductile Iron Housing & Precision Commutation: The motor housings are cast from high-grade ductile iron to minimize distortion under maximum system stress. The advanced disc-valve or three-zone commutation design optimizes fluid flow paths, heavily reducing internal friction, heat, and pressure drop ($\Delta P$).

Application Areas:

• Municipal & Environmental Machinery: Roller brush drives for street sweepers and rotational mechanisms for front-mounted brooms.

• Agricultural & Forestry Equipment: Header drives for combine harvesters, automated greenhouse curtain rollers, and small log splitters.

• Material Handling & Conveyors: Conveyor belt drives, truck-mounted utility winches, and grapple rotation mechanisms.

• Construction Machinery: Travel and track drive systems for mini-excavators, trenchers, and skid-steer loaders.

Expert Maintenance Tips:

• Pre-Commissioning Priming: Regardless of mounting orientation (horizontal or vertical), the motor case must be filled with clean hydraulic fluid through the main ports before initial startup. Jog the motor with zero load for several minutes to bleed out any trapped air.

• Overpressure Protection: Because orbital motors generate high pressure spikes during sudden reversals or inertia shocks, it is highly recommended to install a dual cross-over relief valve close to the motor ports. Set the relief pressure 15-20 bar lower than the motor’s maximum intermittent rating.

• Fluid Cleanliness and Temperature Control: Maintain system fluid filtration to ISO 4406 18/16/13 (approx. 10μm absolute) or better. During continuous operation, ensure the reservoir oil temperature does not exceed 80°C (176°F) to prevent premature aging of internal seals.