555 Brushed DC Motor, 12V/24V, 3500–8000 RPM, 15mm Shaft, Bearing Options, 1/2/4/10PCS
555 Brushed DC Motor, 12V/24V, 3500–8000 RPM, 15mm Shaft, Bearing Options, 1/2/4/10PCS
Jiali Motor
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555 Brushed DC Motor
The Jiali Motor 555 is a permanent-magnet brushed DC motor with a 3.175mm round shaft and a 15mm exposed shaft length. Choose 12V or 24V, a no-load speed of 3500, 5000 or 8000 RPM, and either an oil-impregnated sleeve bearing or dual ball bearings. Quantity packs contain 1, 2, 4 or 10 identical motors in the selected configuration.
Construction and Control
- Direct-drive motor with copper windings, permanent magnets and carbon brushes.
- Reversible rotation by swapping the two motor leads.
- Speed adjustment using a compatible external brushed-DC PWM controller, sold separately.
- Two bearing configurations are available; select the required Bearing option. Product photographs are reference views and do not identify every bearing version.
Mechanical and Electrical Specifications
| Parameter | Supplier specification |
|---|---|
| Brand / model | Jiali Motor / 555 |
| Voltage | 12V DC or 24V DC, according to selection |
| No-load speed | 3500, 5000 or 8000 RPM |
| Bearings | Oil-impregnated sleeve bearing or dual ball bearings |
| Main body | 36mm diameter × 57mm length |
| Outer sleeve | 37mm diameter; 36mm sleeve length |
| Shaft | 3.175mm nominal diameter, solid round shaft; 15mm exposed length |
| Front boss projection | 4.5mm per annotated photo |
| Shaft tip to body-front reference | 19.50mm, including boss |
| Long-shaft drawing reference | 76.50 ±0.05mm total dimension shown; rear terminal projection reference 5mm |
| Mounting | Two M3 threaded holes at 25mm centre spacing; screw insertion depth not specified |
| Weight | Approximately 200g per motor; separate bearing-version weights were not provided |
| Power overview | 9–30W, per supplier overview |
| Current overview | 0.38–2.65A; see voltage/speed-specific performance table |
| Operating claims | Supplier states −10°C to 70°C and 24-hour operation; actual suitability depends on load and cooling |
| Noise | Supplier states approximately 60dB, varying with speed and load; measurement conditions not provided |
All dimensions are supplier reference values and may vary. The source drawing also includes a 5mm shaft version with a 66.50 ±0.05mm overall reference and 9.50mm shaft-plus-boss reference. That short-shaft drawing is reference-only: all selectable variants here have the 15mm shaft. Small shaft-tolerance markings in the source drawing are unclear; confirm any precision-fit requirement rather than assuming a tolerance.
Performance by Voltage and Speed
Option speeds are no-load speeds. Rated-load speed, torque and current are listed separately below. Torque is expressed in gf·cm, not kgf·cm. Stall values are limits, not continuous working ratings. The supplier does not provide separate performance tables for the two bearing options.
| Voltage | No-load RPM | No-load current (mA) | Rated RPM | Rated torque (gf·cm) | Rated current (mA) | Stall torque (gf·cm) | Stall current (mA) |
|---|---|---|---|---|---|---|---|
| 12 | 3500 | 140 | 2450 | 250 | 1350 | 540 | 3800 |
| 12 | 5000 | 200 | 3500 | 320 | 1900 | 960 | 7500 |
| 12 | 8000 | 350 | 5600 | 400 | 2650 | 1685 | 15000 |
| 24 | 3500 | 280 | 2450 | 280 | 380 | 620 | 2200 |
| 24 | 5000 | 360 | 3500 | 360 | 500 | 1320 | 3000 |
| 24 | 8000 | 450 | 5600 | 450 | 1300 | 3330 | 10000 |
Wiring and Use
Use a DC supply matching the selected voltage. The source rear photo marks the positive terminal; confirm the actual motor marking before connecting. Swap the two motor leads to reverse rotation. With a controller, keep its supply polarity correct and follow its direction-control instructions. Stop before reversing direction.
Select by rated torque and allow for starting current when choosing a controller and supply. Do not stall or overload the motor: operation near stall can damage the windings or internal components. Speed drops with increased load, and reducing electrical speed can reduce available torque. Provide adequate ventilation and cooling.
Quantity and Package Contents
1PCS contains 1 motor, 2PCS contains 2 motors, 4PCS contains 4 motors and 10PCS contains 10 motors. All motors in one pack have the same selected voltage, speed and bearing configuration. The variant price is for the entire pack; a cart quantity of 2 with 4PCS orders 8 motors. No controller, power supply, gearbox, encoder, bracket or shaft coupling is included.
Details
English versions of the supplier illustrations, with explanations and series-specific reference notes.
Speed Control and Rotation
Supplier feature illustration. Use a compatible external brushed-DC controller; temperature, endurance and torque claims depend on operating conditions.
Motor Construction
Supplier illustrations show copper windings, permanent magnets and carbon brushes. Internal parts can vary by version.
Motor Dimensions
The upper drawing shows the offered 15mm shaft. The lower 5mm shaft drawing is reference-only and is not a selectable product. Confirm precision-fit tolerances before use.
Specifications and Performance
The table lists voltage- and speed-specific rated and stall data. Torque units are gf·cm. The supplier gives approximately 200g per motor and no separate bearing-version performance table. Continuous-operation claims depend on load and cooling.
