WM900 – Motor Group 2
- High-Performance external gear motor for heavy-duty-application
- Compact 3-piece design
- Uni- or birotational configuration available
- Aluminum housing (standard), cast iron (option)
- Noise optimized
- Standard interfaces available
- Reinforced front bearings (4-bolt interface) available
- Customized options on demand
- Displacement: 6 – 31 cm³/rev (0.366 – 1.892 in³/rev)
- Max. rated pressure: 276 bar (4000 PSI)
- Speed range: 500 to 4000 RPM
- Max. output torque: 78 Nm (690 In-Lbs)
Product Configurator
Streamline your design process with our innovative product configurator.
Configure your product| Displacement (in³/rev) / (cm³/rev – for reference) | Rated differential pressure Δp (PSI) | Maximum output torque (In-Lbs) @ rated Δp | Maximum speed (RPM) | Minimum speed (RPM) |
|---|---|---|---|---|
| .366 / (6.0 cm³/rev) | 4000 | 217 | 4000 | 500 |
| .488 / (8.0 cm³/rev) | 4000 | 289 | 4000 | 500 |
| .671 / (11.0 cm³/rev) | 4000 | 397 | 3600 | 500 |
| .854 / (14.0 cm³/rev) | 4000 | 506 | 3500 | 500 |
| .976 / (16.0 cm³/rev | 4000 | 578 | 3300 | 500 |
| 1.159 / (19.0 cm³/rev) | 4000 | 686 | 3300 | 500 |
| 1.404 / (23.0 cm³/rev) | 3200 | 665 | 3000 | 500 |
| 1.648 / (27.0 cm³/rev) | 2680 | 654 | 2800 | 500 |
| 1.892 / (31.0 cm³/rev) | 2465 | 690 | 2500 | 500 |
| Displacement (cm³/rev) | Rated differential pressure Δp (bar) | Maximum output torque (Nm) @ rated Δp | Maximum speed (RPM) | Minimum speed (RPM) |
|---|---|---|---|---|
| 6,0 | 276 | 25 | 4000 | 500 |
| 8,0 | 276 | 33 | 4000 | 500 |
| 11,0 | 276 | 45 | 3600 | 500 |
| 14,0 | 276 | 57 | 3500 | 500 |
| 16,0 | 276 | 65 | 3300 | 500 |
| 19,0 | 276 | 78 | 3300 | 500 |
| 23,0 | 221 | 75 | 3000 | 500 |
| 27,0 | 185 | 74 | 2800 | 500 |
| 31,0 | 170 | 78 | 2500 | 500 |
Product Features
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Cast Iron Housing
Cast Iron – W900-SeriesConcentric offers cast iron housings for the gear products. Cast iron is adding benefits to the gear unit regarding housing durability, reduced noise radiation and stabilized volumetric efficiency, especially at high operation temperatures (> 80°C)..The cast iron components are Cr6-free surface protected.
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Valve Integration
Valve Integration – W-Series and F12-SeriesConcentric offers a wide range of integrated valve solutions for gear pumps and motors..Examples:Anti-cavitation check valves(Proportional) pressure relief valvesValve manifolds for multiple functions.Also speed sensors can be integrated.
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Reinforced Front Bearing
Reinforced Front Bearing – W900-Series
Concentric offers reinforced front bearings (with 4-bolt interface) for extended radial and axial drive shaft load capabilities in two versions:Medium duty version (001M): max. radial load: 1350 N / max. axial load: 1000 NHeavy duty version (001V): max. radial load: 3600 N / max. axial load: 1300 N.Examples:Fan drivesBelt drives
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Multiple Sections
Multiple Sections – Motors
To meet specific customer needs, Concentric can design multiple section gear motors, for example acting like a flow divider.
Multiple gear motor combinations are available with up to two sections with a wide interface range.
