TF0240EY260AAAB Parker TF Orbit Motor 238 cm³/rev

Product Overview

The TF0240EY260AAAB, TF0240HB080AAAB, TF0240HK410AAAB and TF0240HK460AAAB are Parker Hannifin TF Series Torqmotor™ low-speed, high-torque orbital hydraulic motors.

Parker’s official TF documentation identifies the series as a rugged LSHT platform using a 60:40 spline-geometry drive link, roller-vane power element, sealed commutation, full-flow spline lubrication and high-pressure shaft sealing. These features are intended to support high volumetric efficiency, smooth low-speed operation and long service life in demanding hydraulic drive systems.

The TF0240 displacement code corresponds to 238 cm³/rev / 14.5 in³/rev. The four supplied full part numbers share the same hydraulic displacement class but use different housing/porting and shaft configurations.

For aftermarket supply, the correct commercial terminology is Parker TF replacement, compatible replacement or interchangeable replacement motor. Mechanical interchangeability should always be verified against the complete part number and installation interface.

Technical Specifications

Common TF0240 Performance Data

Applicable to:

• TF0240EY260AAAB
• TF0240HB080AAAB
• TF0240HK410AAAB
• TF0240HK460AAAB

Parker’s official TF performance table specifies:

• Series: Parker TF Series Torqmotor™
• Displacement code: 0240
• Geometric displacement: 238 cm³/rev / 14.5 in³/rev
• Maximum speed: 394 rpm, at maximum intermittent flow
• Maximum continuous flow: 76 L/min / 20 GPM
• Maximum intermittent flow: 95 L/min / 25 GPM
• Maximum continuous differential pressure: 138 bar / 2000 psi
• Maximum intermittent differential pressure: 207 bar / 3000 psi
• Maximum supply pressure: 300 bar / 4350 psi
• Maximum continuous torque: 427 N·m / 3782 lb-in
• Maximum intermittent torque: 670 N·m / 5928 lb-in
• Maximum output power: 27.7 kW / 37.1 HP
• Minimum continuous starting torque: 366 N·m / 3242 lb-in
• Minimum intermittent starting torque: 572 N·m / 5058 lb-in
• Intermittent rating: approximately 10% of each minute
• Test fluid: 10W40, 43.1 cSt / 200 SUS at 54°C / 130°F
• Parker states that catalog performance figures are typical and may vary slightly between production motors.

The 138 bar figure is the maximum continuous differential pressure, 207 bar is the maximum intermittent differential pressure, and 300 bar is the maximum supply pressure. These values should not be presented as a single generic “rated pressure.”

Exact Configuration: TF0240EY260AAAB

• Full part number: TF0240EY260AAAB
• Series: TF
• Displacement: 238 cm³/rev / 14.5 in³/rev
• Housing code: E* — rear-port housing group
• End-cover code: Y — G 1/2 axial
• Combined configuration: rear-port arrangement with G 1/2 axial rear port
• Shaft code: 26
• Shaft: 25 mm straight shaft with 8 mm key and 8 mm tapped end
• Rotation: 0 — Standard
• Option: AAAB — Standard, No Paint
• Maximum speed: 394 rpm
• Continuous/intermittent flow: 76 / 95 L/min
• Continuous/intermittent differential pressure: 138 / 207 bar
• Maximum supply pressure: 300 bar
• Continuous/intermittent torque: 427 / 670 N·m.

The key replacement-engineering characteristics are the rear-port arrangement, G1/2 axial rear connection and 25 mm keyed shaft.

Exact Configuration: TF0240HB080AAAB

• Full part number: TF0240HB080AAAB
• Series: TF
• Displacement: 238 cm³/rev / 14.5 in³/rev
• Housing code: H* — rear-port housing group
• End-cover code: B — 7/8-14 UNF radial
• Combined configuration: rear-port arrangement with 7/8-14 UNF radial rear port
• Shaft code: 08
• Shaft: 1-1/4-inch tapered shaft
• Rotation: 0 — Standard
• Option: AAAB — Standard, No Paint
• Maximum speed: 394 rpm
• Continuous/intermittent flow: 76 / 95 L/min
• Continuous/intermittent differential pressure: 138 / 207 bar
• Maximum supply pressure: 300 bar
• Continuous/intermittent torque: 427 / 670 N·m.

The main engineering difference from the EY configuration is the rear porting arrangement and 1-1/4-inch tapered shaft.

Exact Configuration: TF0240HK410AAAB

• Full part number: TF0240HK410AAAB
• Series: TF
• Displacement: 238 cm³/rev / 14.5 in³/rev
• Housing/porting: HK — Universal housing configuration
• Shaft code: 41
• Shaft: 6B SAE
• Rotation: 0 — Standard
• Option: AAAB — Standard, No Paint
• Maximum speed: 394 rpm
• Continuous/intermittent flow: 76 / 95 L/min
• Continuous/intermittent differential pressure: 138 / 207 bar
• Maximum supply pressure: 300 bar
• Continuous/intermittent torque: 427 / 670 N·m.

The 41 shaft configuration is a specific mechanical interface and should not be treated as interchangeable with the 03, 08, 26 or 46 shaft codes solely because the displacement is identical.

Exact Configuration: TF0240HK460AAAB

• Full part number: TF0240HK460AAAB
• Series: TF
• Displacement: 238 cm³/rev / 14.5 in³/rev
• Housing/porting: HK — Universal housing configuration
• Shaft code: 46
• Shaft: Ø32.00 mm straight shaft
• Rotation: 0 — Standard
• Option: AAAB — Standard, No Paint
• Maximum speed: 394 rpm
• Continuous/intermittent flow: 76 / 95 L/min
• Continuous/intermittent differential pressure: 138 / 207 bar
• Maximum supply pressure: 300 bar
• Continuous/intermittent torque: 427 / 670 N·m.

External product records also identify TF0240HK460AAAB as a 240-class TF orbital motor with a 32 mm cylindrical/straight shaft, but the Parker performance data remain the primary source for the hydraulic ratings.

Control Configuration

• Motor type: Fixed-displacement LSHT orbital hydraulic motor
• Displacement control: Fixed displacement
• Speed control: Hydraulic flow control
• Direction control: A/B hydraulic port pressure
• Rotation code 0: Standard rotation
• Rotation code 1: Reverse Timed Manifold.

Parker’s service documentation states, when viewed from the output-shaft end:

• B-port pressure → clockwise rotation
• A-port pressure → counter-clockwise rotation.

Key Technical Advantages

1. 60:40 Spline Geometry Drive Link

The TF powertrain uses Parker’s 60:40 spline geometry for increased transmission strength. This is especially relevant to low-speed/high-torque applications where the drive link is exposed to substantial cyclic loading.

2. Roller-Vane Power Element

Parker identifies the roller-vane power element as a core TF design feature and associates it with high volumetric efficiency, smooth low-speed operation and extended motor life.

3. Sealed Commutation

The sealed commutation architecture supports controlled hydraulic timing and stable low-speed performance, which is important for applications requiring smooth starting and bidirectional operation.

4. Full-Flow Spline Lubrication

Parker’s design continuously flushes the internal spline area with working fluid, supporting lubrication and heat removal from the drivetrain.

5. High-Pressure Shaft Seal

The TF Series uses a high-pressure shaft-sealing arrangement designed for high back-pressure operation. Parker states that the shaft seal can withstand full system pressure and is washed by cool working fluid for extended seal life.

6. Multiple Mechanical Interfaces

The TF platform supports multiple housing/port, shaft, rotation and option combinations. The supplied part numbers demonstrate:

• EY26: rear-port configuration + G1/2 axial rear connection + 25 mm keyed shaft
• HB08: rear-port 7/8-14 UNF radial configuration + 1-1/4-inch tapered shaft
• HK41: universal housing + 6B SAE shaft
• HK46: universal housing + Ø32 mm straight shaft

This configuration flexibility is important in replacement engineering where the existing machine installation must be retained.

7. High Side-Load Capability

Parker publishes a maximum side load at the key of 16,000 N / 3,597 lb for the TF Series. Actual allowable external load remains dependent on shaft configuration, load location, mounting arrangement and operating conditions.

Parker’s public documentation does not specify steel grades, heat-treatment hardness, machining tolerances or surface-hardening depth for these complete part numbers, so those values are intentionally not claimed.

Application Areas

The TF Series is suitable for hydraulic systems requiring low speed, high torque, bidirectional rotation and compact hydraulic drive architecture, including:

• Heavy-duty mobile hydraulic equipment
• Agricultural machinery
• Conveyor and feed drives
• Industrial rotary drives
• Sweeping and cleaning equipment
• Construction-equipment auxiliary drives
• Material-handling machinery
• Winch and drum drives
• Other high-torque, low-speed hydraulic transmissions

This positioning is consistent with Parker’s published description of the TF as an LSHT motor for tough applications.

Expert Maintenance Tips

Hydraulic Oil Temperature

Parker’s January 2025 PMDE service manual recommends a normal operating range of approximately +30°C to +60°C, with a maximum of +90°C and a minimum of approximately −30°C.

Hydraulic Fluid Viscosity

Parker recommends approximately 20–120 mm²/s viscosity over the operating-temperature range. Alternative fluids should be checked for compatibility with the seals and motor materials.

Filtration

Parker recommends approximately 20–50 μm filtration. Proper contamination control is important for protecting the roller-vane element, commutation components and drive-link system.

Hydraulic Fluid Type

Parker recommends mineral-based hydraulic oil with at least 0.1% zinc anti-wear additive and advises consulting its engineering organization before using other fluids.

Shaft Installation

The Parker TF service procedure specifies lubrication of the designated shaft OD/ID area before coupling-shaft installation.

Commutator Service

When reinstalling the commutator assembly, Parker specifies the use of new seals and states that the flat side of the seal should face outward.

Verify the Full Part Number

For TF0240 replacement projects, always verify:

• Housing/porting code
• Rear-port arrangement
• Shaft code
• Shaft diameter
• Key/spline geometry
• Rotation code
• Port thread
• Port orientation
• Installation dimensions

TF0240EY260AAAB, TF0240HB080AAAB, TF0240HK410AAAB and TF0240HK460AAAB share the same displacement but do not have the same mechanical interface.

100% Simulated Working-Condition Testing

For an aftermarket replacement motor, a final validation program should include:

• No-load startup
• Forward/reverse rotation
• Low-speed stability
• Flow response
• Continuous differential-pressure verification
• Intermittent differential-pressure verification
• External leakage inspection
• Output-shaft operation
• Full interface and installation verification

This provides a strong engineering basis for your company’s 100% Simulated Working-Condition Testing claim and aligns with Parker’s emphasis on application-specific analysis and testing.

Technical Verification Note

The most important verified relationship for this product family is:

TF0240 → 238 cm³/rev → 394 rpm → 76/95 L/min → 138/207 bar differential pressure → 300 bar supply pressure → 427/670 N·m torque.

The original keyword TF0190 should not receive independent specifications because Parker’s current official TF catalog lists TF0195, not TF0190.

For a production website, the safest SEO structure is therefore to use TF0240EY260AAAB as the primary Focus Keyword and retain the other three complete part numbers as related replacement/configuration keywords.