Description:
The 050189 DCM64 is a compact 24 V DC gear motor from MOTOR LINE, carrying SKU 050189 within the DCM64 series. It is a geared electromechanical drive unit — a brushed DC motor coupled to an integrated reduction gearbox — built for low-speed, high-torque motion in gate and barrier automation, access control, conveyor positioning and light industrial actuation.
Physically verified units measure 24 V with a 60 rpm output, a 37 mm gearbox diameter, a 34 mm motor body, a 60 mm body length excluding flange and shaft, a 6 mm output shaft, a 12 mm flange and approximately 186 g. The series is no longer in active production, so sourcing is through new-old-stock and professionally refurbished channels.
One caution before you buy, because this part is heavily misrepresented online: the 050189 DCM64 is listed in various catalogues as an ABB drive, a Siemens variable-speed drive, a Bosch servo, a GE Fanuc CNC module or an Allen-Bradley control module, with ratings ranging from 380–480 VAC and 75 kW down to 12–48 VDC and 5 W. Those attributions conflict with one another and with what physically measured 050189 DCM64 units actually are. Treat the 24 V DC gear motor description as the operative one, and confirm against your failed unit’s nameplate before ordering.
Application Scenarios:
A commercial site’s sliding gate has been operating for fifteen years. One morning the gate stops halfway. The fault is not the control board, not the photocells, not the radio receiver — it is the gear motor, whose brushes have worn and whose gearbox output no longer develops enough torque to move the leaf against a stiff track. The site is now unsecured, vehicles cannot enter, and the facilities manager is being asked why a “simple motor” is going to take three weeks.
This is exactly the situation the 050189 DCM64 resolves. Because it is the original series unit, it drops into the existing mechanical envelope: the same 12 mm flange registration, the same 6 mm shaft the coupling or pinion already fits, the same 60 rpm output the control board’s ramp settings, timer values and force thresholds were tuned around. Nothing has to be re-machined, re-programmed or re-certified. A technician swaps the unit, restores the wiring, and the gate behaves exactly as it did before — including the soft-start and slow-down profile that the controller expects.
The second scenario is the one that protects capital budget. In light industrial applications — conveyor positioning, small valve actuation, feed-rate control in a manufacturing cell — the 050189 DCM64 is often embedded in logic that was tuned over years: timer settings, ramp parameters, limit-switch positions. Substituting a modern motor with a different torque curve or a different shaft and flange geometry is not plug-and-play; it means engineering hours, mounting adapters, control-loop re-tuning and possibly renewed safety review. Keeping a 050189 DCM64 on the shelf converts a potential retrofit project into a ninety-minute maintenance task.
Parameter:
| Main Parameters | Value/Description |
|---|---|
| Product Model | 050189 DCM64 (SKU 050189, series DCM64) |
| Manufacturer | MOTOR LINE |
| Product Category | DC gear motor — geared DC drive unit (electromechanical, not an electronic module) |
| Rated Voltage | 24 V DC — the operating point for which DCM64-class units are wound and rated |
| Output Speed | 60 rpm at rated voltage (gear-reduced output shaft speed) |
| Motor Body Diameter | 34 mm |
| Gearbox Diameter | 37 mm |
| Body Length | 60 mm excluding flange and shaft |
| Output Shaft Diameter | 6 mm — the critical dimension for coupling and pinion compatibility |
| Flange Diameter | 12 mm — the mechanical registration that must match the mounting bracket |
| Weight | Approximately 186 g (measured on verified units) |
| Mounting Interface | Flange or bracket mount, application-dependent |
| Load Capability | Resistive mechanical loads in gate, barrier, conveyor and light actuation duty |
| Lifecycle Status | Obsolete — no longer in active production; sourced as new old stock or tested refurbished |
| Vendor-Reported Ratings | Some suppliers list 12–48 VDC operation, IP54/IP65 enclosure, −20 °C to +70 °C and Class F insulation; these are unverified and should be confirmed before specifying |
| Dimensions Note | Other catalogues publish 96 × 96 × 32 mm and 23 × 5.5 × 12 cm shipping figures — these describe packaging or unrelated products, not the motor body |
