S26 Aluminum Gear Motors

S26-Aluminum-Gear-Motors Decrease noise emissions and pressure ripples in hydraulic systems for tractors and harvesters, turf care equipment, lift trucks and more with Eaton S26 aluminum gear motors. Featuring a pressure balanced, die-cast aluminum design, these compact, bi-directional motors incorporate multiple valve packages creating a complete solution. S26 aluminum gear motors are a great solution for tight spaces, as they are shorter than most other gear motors yet still deliver the necessary horse power to do the job.

Common applications include turf care, agriculture tractors and harvesters, lift trucks, fan drive systems, industrial, and vibratory machines.

Product Features

  • Quiet Operation
    • The 13-tooth gears, versus 10 teeth in previous pumps, minimizes the flow ripple. This reduces noise as well as vibration.
    • The improved trap reliefs not only increase power, they also help keep oil flowing smoothly to reduce noise.
  • Improved Efficiency
    • Improved bearing lubrication system uses inlet oil instead of high pressure oil, improving volumetric efficiency for more power output.
    • The highly polished shaft and gears improve mechanical efficiency and reduce wear on these components, adding to the service life and reliability of the pump.
    • The optimized trapped oil relief areas help reduce pressure ripple for quieter operation. This also decreases the input power requirements.
  • Field Reversible
    • The innovative new wear plate permits simple field reversibility of the pump direction. Simply open the pump, switch the drive gear and idler gear, reposition the plug and reassemble. No extra parts are needed.
  • Interchangeability
    • The Series 26 Gear Pump has been designed to retrofit equipment using the B1 and B2 Gear Pumps. Extra shafts, porting, and mounting configurations, as well as 13 available displacements, give you the choices you need for an easy conversion to this superior pump.

Technical Information

  • Rotation: Field Reversible
  • Mounting Flange: SAE A 2 Bolt
  • Maximum Continuous Pressure: 210 bar [3000 PSI]*
  • Maximum Intermittent Pressure: 240 bar [3500 PSI]**
  • Minimum Speed at Continuous Pressure: 750 RPM
  • Maximum Rotating Torque at 0 Pressure: 4 Nm [36 lb-in]
  • Maximum Continuous Operating Temperature: 105°C [220°F]
  • Minimum Continuous Oil Viscocity: 5.7 cSt [45 SUS]
  • Minimum Operating Temperature: -29°C [-20°F]
  • Maximum Inlet Vacuum at Operating Condition: 0,8 bar Abs. [11.6 psi Abs.]

* 30.6 cm3/rev. [1.87 in3/rev.] displacement max. continuous pressure is 190 bar [2750 PSI].
** 30.6 cm3/rev. [1.87 in3/rev.] displacement max. intermittent pressure is 224 bar [3250 PSI].

Featured Literature

Gear Pumps and Motors Technical Catalog

Gear Pumps and Motors Technical Catalog
This catalog contains information about Eaton's Series 26 pumps and motors as well as the Series L2 pumps.


Gear Pumps and Motors Technical Guides

Technical Guides:

Series 26 - Model 26000 Single Gear Pump
Pump parts list, drawings and assembly information.

Series 26 – Model 26000 Single Gear Pumps
This manual provides service information for the Eaton model 26000 single gear pumps. Step by step instructions for the complete disassembly, inspection, and reassembly of the pumps are included.

Eaton Gear Pumps Repair Information
This manual provides service information for the Eaton model 26000 multiple gear pumps. Step by step instructions for the complete disassembly, inspection, and reassembly of the pumps are included.

Configure Product

Find the exact product configuration that meets your needs with the Eaton product configurator. The configurator allows easy manipulation to create a product that meets your specifications from end-to-end.

Click here to configure S26 Series


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