TG0240 Parker Gerotor Hydraulic Motor 238 cc/rev

Product Overview

The Parker TG0240 is a fixed-displacement Gerotor / LSHT orbital hydraulic motor designed for low-speed, high-torque hydraulic drive applications.

According to Parker’s official TG Series documentation, TG0240 provides a geometric displacement of 238 cm³/rev (14.5 in³/rev), a maximum continuous differential pressure of 207 bar / 3,000 psi, an intermittent differential pressure rating of 276 bar / 4,000 psi, and a maximum supply pressure of 300 bar / 4,350 psi. Its maximum operating speed is 393 rpm.

The TG powertrain incorporates Parker’s heavy-duty drive-link architecture with 60:40 spline geometry, roller vanes, sealed commutator technology and continuous high-flow hydraulic-fluid cooling of the drivetrain. These features are intended to provide high torque capacity, efficient operation and smooth low-speed performance.

The configurations supplied for this product page are:

• TG0240MS030AAAA
• TG0240HW460BBBN

Both belong to the TG0240 displacement class but use different mechanical interfaces. TG0240MS030AAAA is a Magneto-mounted configuration with a 1-1/4 in keyed shaft and 7/8-14 SAE ports. TG0240HW460BBBN is a wheel-mounted configuration with a 32 mm keyed shaft and an integrated relief-valve configuration identified by third-party product records.

For OEM replacement and MRO applications, our replacement process focuses on critical mechanical and hydraulic interfaces and includes 100% simulated working-condition testing before shipment.

Technical Specifications

TG0240

• Brand: Parker Hannifin
• Series: TG Series
• Motor Type: Fixed-Displacement Gerotor / LSHT Orbital Hydraulic Motor
• Geometric Displacement: 238 cm³/rev
• Displacement: 14.5 in³/rev
• 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 Flow: 76 L/min / 20 GPM
• Maximum Intermittent Flow: 95 L/min / 25 GPM
• Maximum Operating Speed: 393 rpm
• Maximum Continuous Torque: 677 Nm / 5,991 lb-in
• Maximum Intermittent Torque: 913 Nm / 8,081 lb-in
• Maximum Continuous Output Power: 32 kW
• Maximum Intermittent Output Power: 44 kW
• Minimum Starting Torque: 582 Nm continuous / 776 Nm intermittent
• Control: Fixed displacement; speed is primarily controlled through hydraulic flow
• Intermittent Duty: Maximum intermittent operation is specified for 10% of each operating minute
• Reference Test Condition: 10W40 oil, 200 SUS at 54°C / 130°F.

TG0240MS030AAAA

• Part Number: TG0240MS030AAAA
• Displacement: 238 cm³/rev
• Mounting: Magneto
• Mounting Code: MS
• Shaft Code: 03
• Shaft: 1-1/4 in keyed
• Porting: 7/8-14 SAE
• Rotation Code: 0 / Standard
• Option Code: AAAA
• Finish: Black paint
• Maximum Speed: 393 rpm according to Parker’s TG0240 performance data.

TG0240HW460BBBN

• Part Number: TG0240HW460BBBN
• Displacement: 238 cm³/rev
• Mounting: Wheel mount
• Mounting Code: HW
• Pilot: Machined pilot nose
• Porting: G1/2 / 1/2 BSPP milled port face
• Shaft Code: 46
• Shaft: 32 mm keyed
• Rotation: Bidirectional configuration documented by product records
• Valve: Integrated pressure-relief/safety-valve configuration identified in product listings
• Approximate Weight: 16.8 kg, configuration-specific.

TG Series Displacement Range

The title also references TG0140, TG0170, TG0195, TG0240, TG0280 and TG0335. These are different TG displacement variants.

Parker specifies:

• TG0140: 141 cm³/rev
• TG0170: 169 cm³/rev
• TG0195: 195 cm³/rev
• TG0240: 238 cm³/rev
• TG0280: 280 cm³/rev
• TG0335: 337 cm³/rev

Maximum operating speeds are:

• TG0140: 660 rpm
• TG0170: 554 rpm
• TG0195: 477 rpm
• TG0240: 393 rpm
• TG0280: 334 rpm
• TG0335: 277 rpm

The progression demonstrates the basic LSHT design trade-off: increasing displacement generally reduces maximum speed while increasing torque capability.

Key Technical Advantages

High-Torque LSHT Performance

With 238 cm³/rev displacement, TG0240 delivers up to 677 Nm continuous torque and 913 Nm intermittent torque under Parker’s specified differential-pressure conditions. This makes it suitable for low-speed rotary drives requiring substantial starting and running torque.

Heavy-Duty 60:40 Spline Drive Link

Parker’s TG architecture uses an extra-heavy-duty drive link with 60:40 spline geometry. Parker states that the rugged construction allows torque transmission in excess of 13,000 lb-in.

Roller Vanes and Sealed Commutator

The combination of roller vanes and a sealed commutator is specified by Parker to maintain high efficiency and smooth low-speed performance.

Continuous Powertrain Cooling

The TG powertrain is continuously washed with high-flow hydraulic fluid, helping control internal heat generation and support durability during extended operation.

High Side-Load Capability

Parker’s TG documentation specifies a maximum side load at the key in the 16,000 N class, while actual permissible loading depends on shaft configuration, loading position, operating speed and bearing-life calculations.

High-Pressure Shaft Sealing

The TG architecture incorporates a high-pressure shaft-sealing system designed for demanding hydraulic and mechanical operating conditions.

Precision Replacement Engineering

For TG0240MS030AAAA and TG0240HW460BBBN, interchangeable replacement requires control of critical interfaces such as:

• Gerotor clearances
• Commutator sealing geometry
• Drive-link alignment
• Shaft concentricity
• Keyway dimensions
• Pilot geometry
• SAE / BSPP port locations
• Shaft-seal interfaces

Dimensional compatibility and hydraulic performance must both be verified.

Application Areas

Typical applications include:

• Construction Machinery
• Agricultural Equipment
• Forestry Machinery
• Material Handling Systems
• Vehicle Drive Systems
• Earth Augers
• Chain Drives
• Hydraulic Winches
• Boom Swing Mechanisms
• Conveyor Drives
• Mobile Hydraulic Equipment
• Industrial Rotary Drives

TG0240HW460BBBN is specifically listed in public product documentation for vehicle drives, earth augers, chain drives, winches and boom-swing applications.

Expert Maintenance Tips

Verify the Complete Ordering Code

Always verify the complete part number rather than ordering by TG0240 alone.

TG0240MS030AAAA and TG0240HW460BBBN use different mounting and shaft configurations.

Respect Continuous and Intermittent Pressure Limits

TG0240 is rated at:

• 207 bar continuous differential pressure
• 276 bar intermittent differential pressure
• 300 bar maximum supply pressure

The 276 bar rating is intermittent and must not be treated as a continuous operating pressure.

Use the Official Speed Rating

The Parker TG0240 performance table specifies a maximum operating speed of 393 rpm. Some distributor pages list 660 rpm for this part number, but that conflicts with Parker’s official TG0240 engineering data. For engineering selection and technical marketing, 393 rpm is the appropriate Parker reference value.

Inspect Wheel-Mount Mechanical Loading

For TG0240HW460BBBN, inspect the pilot nose, wheel flange, 32 mm keyed shaft, keyway and radial loading. Excessive overhung or side loading can significantly reduce bearing life even when hydraulic pressure is within specification.

Verify the Integrated Relief Valve

The TG0240HW460BBBN configuration is publicly identified as including an integrated relief/safety valve. The actual valve setting should be confirmed from the original identification/configuration documentation rather than inferred from the general TG0240 pressure rating.