TG0140HK440AAAB Parker TG Orbital Hydraulic Motor

Product Overview

The Parker Torqmotor™ TG Series is a medium-duty LSHT (Low-Speed High-Torque) orbital / gerotor hydraulic motor platform developed for mobile and industrial hydraulic systems requiring reliable low-speed torque, smooth rotation and robust mechanical power transmission.

Parker’s official TG documentation lists 14 displacement sizes ranging from 141 to 959 cm³/rev. The TG powertrain incorporates a heavy-duty torque link with patented 60:40 spline geometry, roller vanes and a sealed commutator. Parker states that the complete powertrain is continuously washed with cool, high-flow working fluid to support long service life.

The requested configurations are:

• TG0140HK440AAAB
• TG0240MS030AAAB
• TG0335MW440AAAB
• TG0530US030AABN

The corresponding Parker geometric displacements are:

• TG0140 → 141 cm³/rev
• TG0240 → 238 cm³/rev
• TG0335 → 337 cm³/rev
• TG0530 → 528 cm³/rev

Parker’s ordering information distinguishes mounting/port, shaft, rotation and options. For example, it defines HK as a machined-pilot wheel configuration with M6 manifold, MS as magneto mounting with 7/8-14 SAE ports, US as standard wheel mounting with 7/8-14 SAE ports, 03 as a 1-1/4″ keyed shaft and 44 as a 14-tooth spline with 12/24 pitch and 12 mm tapped shaft.

Technical Specifications

TG0140HK440AAAB

• Brand: Parker Hannifin
• Product Family: Torqmotor™ TG Series
• Product Type: LSHT Orbital / Gerotor Hydraulic Motor
• Part Number: TG0140HK440AAAB
• Geometric Displacement: 141 cm³/rev
• Displacement: 8.6 in³/rev
• Maximum Speed: 660 rpm
• Maximum Continuous Flow: 76 L/min / 20 gpm
• Maximum Intermittent Flow: 95 L/min / 25 gpm
• Maximum Continuous Differential Pressure: 207 bar / 3,000 psi
• Maximum Intermittent Differential Pressure: 276 bar / 4,000 psi
• Maximum Supply Pressure: 300 bar / 4,350 psi
• Maximum Continuous Torque: 390 Nm
• Maximum Intermittent Torque: 530 Nm
• Maximum Continuous Output: 33 kW
• Maximum Intermittent Output: 45 kW
• Minimum Starting Torque: 315 Nm continuous / 418 Nm intermittent
• Mounting/Port Code: HK
• HK Configuration: Wheel, Machined Pilot Nose, M6 Manifold
• Shaft Code: 44
• Shaft: 14-tooth spline, 12/24 pitch, 12 mm tapped
• Options: AAAB, Standard / No Paint

TG0240MS030AAAB

• Brand: Parker Hannifin
• Product Family: Torqmotor™ TG Series
• Product Type: LSHT Orbital / Gerotor Hydraulic Motor
• Part Number: TG0240MS030AAAB
• Geometric Displacement: 238 cm³/rev
• Displacement: 14.5 in³/rev
• Maximum Speed: 393 rpm
• Maximum Continuous Flow: 76 L/min / 20 gpm
• Maximum Intermittent Flow: 95 L/min / 25 gpm
• Maximum Continuous Differential Pressure: 207 bar / 3,000 psi
• Maximum Intermittent Differential Pressure: 276 bar / 4,000 psi
• Maximum Supply Pressure: 300 bar / 4,350 psi
• Maximum Continuous Torque: 677 Nm
• Maximum Intermittent Torque: 913 Nm
• Maximum Continuous Output: 32 kW
• Maximum Intermittent Output: 44 kW
• Minimum Starting Torque: 582 Nm continuous / 776 Nm intermittent
• Mounting/Port Code: MS
• MS Configuration: Magneto, 7/8-14 SAE
• Shaft Code: 03
• Shaft: 1-1/4″ keyed
• Options: AAAB, Standard / No Paint

The exact TG0240MS030AAAB reference also appears in Parker’s LSHT motor fulfillment documentation.

TG0335MW440AAAB

• Brand: Parker Hannifin
• Product Family: Torqmotor™ TG Series
• Product Type: LSHT Orbital / Gerotor Hydraulic Motor
• Part Number: TG0335MW440AAAB
• Geometric Displacement: 337 cm³/rev
• Displacement: 20.6 in³/rev
• Maximum Speed: 277 rpm
• Maximum Continuous Flow: 76 L/min / 20 gpm
• Maximum Intermittent Flow: 95 L/min / 25 gpm
• Maximum Continuous Differential Pressure: 207 bar / 3,000 psi
• Maximum Intermittent Differential Pressure: 276 bar / 4,000 psi
• Maximum Supply Pressure: 300 bar / 4,350 psi
• Maximum Continuous Torque: 964 Nm
• Maximum Intermittent Torque: 1,297 Nm
• Maximum Continuous Output: 30 kW
• Maximum Intermittent Output: 41 kW
• Minimum Starting Torque: 843 Nm continuous / 1,117 Nm intermittent
• Shaft Code: 44
• Shaft: 14-tooth spline, 12/24 pitch, 12 mm tapped
• Options: AAAB, Standard / No Paint
• Exact MW configuration: Verify mounting/port details against the original Parker configuration drawing or nameplate because the current public ordering table reviewed does not explicitly decode the complete MW combination.

An exact-part industrial listing identifies TG0335MW440AAAB as a Parker 337 cm³/rev TG motor with an approximate weight of 15.4 kg.

TG0530US030AABN

• Brand: Parker Hannifin
• Product Family: Torqmotor™ TG Series
• Product Type: LSHT Orbital / Gerotor Hydraulic Motor
• Part Number: TG0530US030AABN
• Geometric Displacement: 528 cm³/rev
• Displacement: 32.3 in³/rev
• Maximum Speed: 213 rpm
• Maximum Continuous Flow: 76 L/min / 20 gpm
• Maximum Intermittent Flow: 114 L/min / 30 gpm
• Maximum Continuous Differential Pressure: 121 bar / 1,750 psi
• Maximum Intermittent Differential Pressure: 155 bar / 2,250 psi
• Maximum Supply Pressure: 300 bar / 4,350 psi
• Maximum Continuous Torque: 983 Nm
• Maximum Intermittent Torque: 1,253 Nm
• Maximum Continuous Output: 23 kW
• Maximum Intermittent Output: 31 kW
• Minimum Starting Torque: 703 Nm continuous / 1,017 Nm intermittent
• Mounting/Port Code: US
• US Configuration: Wheel, Standard, 7/8-14 SAE
• Shaft Code: 03
• Shaft: 1-1/4″ keyed
• Options Code: AABN
• Exact AABN option decoding: Verify from the original Parker configuration record.

The exact TG0530US030AABN reference is also listed in industrial distribution data at approximately 17.2 kg and approximately 530 cm³/rev. For technical documentation, Parker’s official 528 cm³/rev figure should be preferred.

Control Method

The Parker TG Series uses a fixed-displacement LSHT orbital motor architecture.

The basic engineering relationships are:

Hydraulic Flow → Motor Speed

Differential Pressure × Displacement → Available Output Torque

Therefore:

• Displacement: Fixed
• Speed Control: Hydraulic flow
• Torque Generation: Differential pressure and displacement
• Rotation Direction: Hydraulic flow direction
• Variable Displacement Control: Not integrated into the standard TG architecture

Parker describes its Torqmotor gerotor motors as designed for low-speed, high-torque performance with smooth low-speed control and high torque density.

Key Technical Advantages

1. Patented 60:40 Spline Geometry

Parker’s TG powertrain uses a heavy-duty torque link incorporating patented 60:40 spline geometry. The design supports high torque transmission while the continuously flushed powertrain helps provide long service life.

2. Roller Vanes and Sealed Commutator

Parker specifies roller vanes and a sealed commutator to maintain high efficiency and smooth low-speed performance.

3. High Torque Density

Parker’s published maximum torque data for the requested sizes is:

• TG0140 → 390 / 530 Nm
• TG0240 → 677 / 913 Nm
• TG0335 → 964 / 1,297 Nm
• TG0530 → 983 / 1,253 Nm

These are continuous/intermittent maximum values respectively.

4. High Side-Load Capability

The Parker TG Series documentation specifies up to 16,000 N / 3,597 lb maximum side load at the key under the stated catalog conditions.

This supports applications involving wheels, sprockets, gears and other mechanically loaded output arrangements, subject to application-specific bearing calculations.

5. Multiple Shaft and Mounting Interfaces

Parker offers several shaft configurations and multiple mounting/port arrangements within the TG platform.

The requested products demonstrate this flexibility:

• TG0140HK440AAAB → shaft code 44
• TG0240MS030AAAB → 1-1/4″ keyed shaft
• TG0335MW440AAAB → shaft code 44
• TG0530US030AABN → 1-1/4″ keyed shaft

6. High Supply-Pressure Capability

The Parker TG family specifies a maximum supply pressure of up to 300 bar / 4,350 psi, but differential-pressure capability varies with motor displacement.

For example:

• TG0140 / TG0240 / TG0335 → 207 / 276 bar continuous/intermittent differential pressure
• TG0530 → 121 / 155 bar continuous/intermittent differential pressure

7. Continuous Powertrain Cooling and Lubrication

Parker states that the TG powertrain is continuously washed with cool, high-flow working fluid to support long life.

This contributes to thermal control and lubrication of internal moving interfaces.

Application Areas

TG0140HK440AAAB

Suitable applications include:

• Wheel drives
• Agricultural machinery
• Compact mobile equipment
• Material handling
• Conveyor drives
• Rotary attachments

The HK configuration is a machined-pilot wheel configuration with M6 manifold arrangement.

TG0240MS030AAAB

Typical applications include:

• Agricultural machinery
• Industrial rotary drives
• Conveyors
• Mobile hydraulic equipment
• Material handling equipment
• Agricultural attachments

The magneto mount and 1-1/4″ keyed shaft provide a conventional mechanical output interface.

TG0335MW440AAAB

Typical applications include:

• Agricultural machinery
• Forestry machinery
• Conveyors
• Material handling systems
• Road machinery
• Mobile hydraulic equipment
• Rotary attachments

The 337 cm³/rev displacement and 964 Nm continuous maximum torque make the TG0335 suitable for medium-to-heavy low-speed rotary drives.

TG0530US030AABN

Typical applications include:

• Heavy conveyor systems
• Agricultural machinery
• Forestry equipment
• Road construction machinery
• Material handling
• Wheel and traction drives
• Mobile hydraulic equipment

The 528 cm³/rev displacement and 983 Nm continuous maximum torque make the configuration suitable for substantial low-speed drive loads.

Expert Maintenance Tips

1. Specify the Complete Part Number

Always identify:

TG0140HK440AAAB

TG0240MS030AAAB

TG0335MW440AAAB

TG0530US030AABN

rather than selecting by TG displacement alone. Parker’s ordering architecture differentiates mounting/ports, shaft, rotation and options.

2. Use the Official Displacement Values

The Parker technical values are:

• TG0140 → 141 cm³/rev
• TG0240 → 238 cm³/rev
• TG0335 → 337 cm³/rev
• TG0530 → 528 cm³/rev

These values should be used in engineering calculations and test reports.

3. Do Not Transfer Pressure Ratings Between Sizes

For example:

TG0335 → 207 / 276 bar

while:

TG0530 → 121 / 155 bar

This is a critical displacement-specific limitation.

4. Check Shaft and Coupling Alignment

Inspect:

• Shaft concentricity
• Pilot fit
• Coupling alignment
• Mounting-face flatness
• Key/spline engagement
• Shaft runout

For shaft code 44 configurations, spline engagement and pilot alignment should receive particular attention.

5. Calculate External Radial and Axial Loads

For wheel, sprocket, chain, pulley and gear drives, calculate:

Radial Load + Axial Load + Load Distance + Shaft Speed + Bearing Life

Parker provides side-load and bearing-related engineering data within the TG documentation.

6. Control Return Pressure and Thermal Conditions

Parker’s performance data is based on:

• SAE 10W40 / 200 SUS hydraulic oil
• 54°C / 130°F

Parker notes that the published performance values are typical and may vary slightly between production motors.

Replacement validation should therefore use consistent:

• Oil viscosity
• Oil temperature
• Flow
• Pressure
• Load
• Return-pressure conditions

7. Respect Intermittent-Duty Limits

Parker explicitly states:

Intermittent operation rating applies to 10% of every minute.

The intermittent pressure and torque values must therefore not be treated as continuous ratings.

8. Perform 100% Simulated Operating-Condition Testing

For replacement TG motors, recommended factory QA includes:

• Displacement verification
• Continuous pressure testing
• Intermittent pressure testing
• Flow testing
• Speed verification
• Starting-torque testing
• Continuous-torque testing
• Internal-leakage testing
• Rotation-direction testing
• Shaft runout inspection
• Key/spline inspection
• Pilot inspection
• Bearing-load verification
• Temperature-rise testing
• Noise and vibration testing
• Complete configuration-code verification

Recommended performance baselines are:

TG0140 → 141 cm³/rev / 660 rpm / 207–276 bar / 390–530 Nm

TG0240 → 238 cm³/rev / 393 rpm / 207–276 bar / 677–913 Nm

TG0335 → 337 cm³/rev / 277 rpm / 207–276 bar / 964–1,297 Nm

TG0530 → 528 cm³/rev / 213 rpm / 121–155 bar / 983–1,253 Nm

The engineering target is:

Drop-In Dimensional Interchangeability + Hydraulic Performance Equivalence + Functional Reliability