Eaton 109-1492-006 Hydraulic Pump Motor - Aftermarket Disc Geroler Standard Type
Eaton 109-1492-006 Hydraulic Pump Motor - Aftermarket Disc Geroler Standard Type
Core Specifications and Technical Parameters

| Item | Disc Geroler Motors |
| Model | 4000 Series |
| Direction Of Rotation | Direction Of Rotation |
| Fastening | 4 Bolts Standard Type |
| Shaft | 31.75mm Key Shaft |
| Charlynn Code | Charlynn Code |
| Charlynn Code | 109-1492-006 hydraulic pump motor, clockwise hydraulic pump motor |
Product Overview
Eaton 109-1492-006 is an aftermarket standard hydraulic gerotor motor manufactured strictly in accordance with the original factory specifications. This model belongs to Eaton's "Disc Geroler" technology platform (i.e., disc-valved gerotor motor) and is a member of the time-tested M3B series. It is renowned for its robust standard design, excellent low-speed high-torque performance, and outstanding reliability. It is specifically engineered to meet the stringent requirements of mobile machinery, engineering equipment, and various industrial hydraulic drive systems. As a direct replacement for the original part, this product can perfectly restore equipment performance and is an ideal choice for equipment repair and maintenance.
Core Advantages and Features
1. Original factory-level quality and precise interchangeability:
◦ Manufactured strictly in accordance with Eaton's original factory drawings, materials, and process standards to ensure complete consistency with the original parts in terms of installation dimensions, performance parameters, and interface specifications, achieving a "plug-and-play" replacement.
◦ Part number 109-1492-006 is the only matching basis, which can perfectly replace Eaton original motors with the same number.
2. Advantages of Disc Valve technology:
◦ Compared with traditional axial distribution, the disc valve design has fewer friction pairs, stronger wear resistance, and higher volumetric efficiency.
◦ It can withstand higher pressure and rotational speed, providing a longer service life and more stable performance output.
◦ It has a relatively higher tolerance for oil contamination and better reliability.
3. Excellent low-speed high-torque performance:
◦ The precision cycloidal gear pair design enables it to output stable, continuous, and powerful torque even at extremely low speeds (as low as 1-2 rpm) without crawling, making it very suitable for heavy-load starting and precise micro-motion control.
4. Sturdy and durable standard design:
◦ Adopting a high-strength shell and high-quality alloy steel internal components, after precision machining and heat treatment, it ensures long-lasting durability under impact loads and harsh working conditions.
◦ The standardized SAE flange and shaft extension interfaces make it widely applicable and recognized in the industry.


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