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OMV motors combine a geroler gear set and disc flow distribution with tapered roller bearings in the output arrangement. Larger displacement choices alter flow demand and speed as well as torque, making the actual operating point central to selection.
| Model | Displacement cm3/rev | Continuous pressure differential MPa | Continuous torque N m | Maximum continuous speed rpm |
|---|---|---|---|---|
| OMV 315 | 333 | 20 | 920 | 510 |
| OMV 400 | 419 | 20 | 1180 | 500 |
| OMV 500 | 518 | 20 | 1460 | 400 |
| OMV 630 | 666 | 18 | 1660 | 320 |
| OMV 800 | 801 | 16 | 1880 | 250 |
| OMV 1000 | 990 | 14 | 2015 | 200 |
Catalogue limits apply to the listed configurations. Maximum speed, torque and pressure are separate limits and are not a simultaneous operating point.
OMV 400 lists 419 cm3/rev, 20 MPa continuous pressure differential, 1180 Nm continuous torque and 500 rpm maximum continuous speed. OMV 630 lists 666 cm3/rev, 18 MPa, 1660 Nm and 320 rpm. The comparison shows why displacement, pressure and speed must be read together.
Compare the required torque at the intended running speed with the selected model data. A larger displacement changes the flow needed for a target speed; it does not establish a proportional increase in continuous torque. The selected shaft version and the operating point still determine which catalogue data apply.
As a calculated example, assume 60 L/min reaches the OMV 400 with 419 cm3/rev displacement. Ideal motor speed is flow x 1000 / displacement, giving 60 x 1000 / 419 = approximately 143.2 rpm before volumetric losses. This is a flow estimate, not a measured BLINCE performance point or confirmation that the motor can deliver rated torque at that speed.
Actual speed and available torque depend on the operating point, oil conditions and motor losses. Use the relevant curve, starting data and inlet and outlet conditions to complete the selection. If the machine needs very low speed or changes load rapidly, include that duty explicitly in the enquiry.
| Item | Details for the enquiry |
|---|---|
| Shaft | OMV shaft profile diameter key or spline usable length and external loading |
| Mounting | Flange form pilot bolt pattern and available space |
| Oil ports | Connection type position and hose clearance from the approved drawing |
| Return and drain | Outlet pressure and the drain arrangement for the supplied motor |
| Duty point | Required starting torque running torque speed and available flow |
For a conveyor, brush or rotary assembly enquiry, state whether the motor connects directly or through a belt, sprocket or gearbox. Include the load on the output shaft and its position. These are machine-duty examples; the actual configuration must be reviewed for its own hydraulic and mechanical requirements.
The reviewed catalogue lists 333 cm3/rev for OMV 315. Use the geometric displacement for the matching configuration rather than assuming the model number is an exact displacement.
The table entries are limits or model-specific ratings, not a single performance point. Check the intended speed, pressure and load against the applicable operating curve and duty instructions.
Send the full existing reference and nameplate photograph, the shaft and mounting drawing, port details and the working duty. Include control or brake connections if they are part of the existing assembly.
Send BLINCE the complete OMV reference, quantity and installation drawing. Add the required starting torque, running speed, available flow and inlet and outlet pressures, together with the connection details that must be retained.
