CHIHAI MOTOR 42GP-BLDC4260 Brushless Planetary Gear Motor, 12 V/24 V
CHIHAI MOTOR 42GP-BLDC4260 Brushless Planetary Gear Motor, 12 V/24 V
CHIHAI MOTOR
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Overview
The CHIHAI MOTOR CHP-42GP-BLDC4260 compact DC gear motor uses a 42 mm metal planetary gearbox and a permanent-magnet brushless motor with an internal Hall-based driver. Select 12 V or 24 V, one of ten retail reduction ratios, and the motor-only, bracket or controller package required by your mechanism.
Features
- Metal planetary gears, ball-bearing support and copper motor windings.
- Internal five-wire driver supports power, 0–5 V PWM speed input, direction control and FG speed feedback.
- 8 mm D-shaped output shaft and fourM4 mounting holes.
- Optional open-board or enclosed controller and mounting-bracket configurations.
Specifications
| Brand / model | CHIHAI MOTOR / CHP-42GP-BLDC4260 |
|---|---|
| Construction | 42 mm permanent-magnet brushless DC motor, metal planetary gearbox, ball bearings and internal Hall-based driver |
| Motor supply | 12 V DC or 24 V DC winding as selected; 24 V logic table lists VCC24 V±10%, not a tolerance promise for 12 V winding |
| Output shaft | 8 mm D shaft, +0 / −0.03 mm diameter tolerance; 22±0.5 mm projection |
| Shaft details | 12±0.1 mm front feature length; 7 mm D-flat dimension +0 / −0.10 mm |
| Gearbox lengths | L33.5, 43.5, 53.5 or 63.5 mm according to ratio; tolerance L±0.3 mm |
| Motor body reference | 59.6±0.3 mm long; 42±0.2 mm diameter; 42.0 mm MAX end-view reference |
| Mounting | 4×M4 holes, 6 mm deep, 35 mm pitch-circle reference; front boss 26 mm diameter +0 / −0.05 mm |
| Additional drawing references | 2.0 mm shoulder feature; 6.0 mm rear projection; 17.5 mm rear feature diameter; lead 280±5 mm |
| Mass reference | Approximately 783g; gearbox ratio and configuration affect actual motor mass |
| Control harness | Five wires: black GND, red VCC, blue PWM, yellow FG, white CW/CCW |
| FG output | Open collector; 12 pulses per motor-shaft revolution; maximum 5 mA sink; use suitable pull-up |
| FG logic reference | VOH≥4 V with 5 V/10kΩ pull-up; VOL≤0.6 V; controller sensing must match output levels |
| PWM input | 0–5 V; VIH≥2.0 V run; VIL≤0.6 V stop; maximum 50 kHz, recommended 15–25 kHz |
| Direction input | 0–5 V; white wire≥2.0 V selectsCCW; ≤0.6 V selectsCW; tie toGND to reverse default direction |
| Higher-power series option | Eight-wire external-driver version requires customization; not one of these five-wire retail configurations |
Configuration Guide
Choose one actual Package, Reduction Ratio and Voltage combination.246:1 appears only in the family performance reference and is not offered by the saved retail selector. The enclosed-controller configuration is identified by its enclosure; the other controller options use the open PCB. Do not infer different electrical capability from enclosure color.
Performance at 12 V and 24 V
The 12 V winding has an approximately 10 W power reference; the 24 V winding has an approximately 50 W reference. Compare loaded speed and torque at the selected voltage; no-load rpm is a different operating condition.246:1 rows below are series reference only.
12 V
| Ratio | No-load rpm | Loaded rpm | Load torque, kgf·cm | Stall torque reference, kgf·cm | GearboxL, mm |
|---|---|---|---|---|---|
| 3.7:1 | 1050 | 590 | 2.00 | ≥4.0 | 33.5 |
| 5:1 | 800 | 420 | 3.0 | ≥6.0 | 33.5 |
| 13:1 | 305 | 170 | 7.0 | ≥16.0 | 43.5 |
| 18:1 | 220 | 120 | 9.0 | ≥20.0 | 43.5 |
| 25:1 | 160 | 88 | 13.0 | ≥30.0 | 43.5 |
| 49:1 | 80 | 45 | 25.0 | See load ceiling | 53.5 |
| 67:1 | 58 | 33 | 35.0 | See load ceiling | 53.5 |
| 92:1 | 43 | 24 | 50.0 | See load ceiling | 53.5 |
| 246:1 (series reference) | 16 | 9 | 50.0 | See load ceiling | 63.5 |
| 336:1 | 12 | 8 | 50.0 | See load ceiling | 63.5 |
| 625:1 | 6 | 5 | 50.0 | See load ceiling | 63.5 |
No-load current ≤350 mA; loaded current ≤2.0 A; stall current ≤4.0 A.
24 V
| Ratio | No-load rpm | Loaded rpm | Load torque, kgf·cm | Stall torque reference, kgf·cm | GearboxL, mm |
|---|---|---|---|---|---|
| 3.7:1 | 2100 | 1180 | 4.0 | ≥8.0 | 33.5 |
| 5:1 | 1520 | 840 | 6.0 | ≥12.0 | 33.5 |
| 13:1 | 570 | 340 | 14.0 | ≥30.0 | 43.5 |
| 18:1 | 420 | 240 | 18.0 | ≥40.0 | 43.5 |
| 25:1 | 300 | 175 | 25.0 | See load ceiling | 43.5 |
| 49:1 | 160 | 90 | 50.0 | See load ceiling | 53.5 |
| 67:1 | 116 | 65 | 50.0 | See load ceiling | 53.5 |
| 92:1 | 84 | 48 | 50.0 | See load ceiling | 53.5 |
| 246:1 (series reference) | 32 | 18 | 50.0 | See load ceiling | 63.5 |
| 336:1 | 23 | 16 | 50.0 | See load ceiling | 63.5 |
| 625:1 | 12 | 11 | 50.0 | See load ceiling | 63.5 |
No-load current ≤500 mA; loaded current ≤2.8 A; stall current ≤4.0 A.
Do not exceed 60kgf·cm output load. Avoid stall; the 60kgf·cm ceiling is not a continuous torque or stall rating. High-power eight-wire external-driver versions require a different custom configuration and are not included here.
Five-Wire Motor Connection
| Black / GND | Motor/control ground |
|---|---|
| Red / VCC | Selected 12 V or 24 V motor supply positive |
| Blue / PWM | 0–5 V pulse-width speed input; do not apply motor supply voltage |
| Yellow / FG | Open-collector speed feedback, 12 motor-shaft pulses/revolution |
| White / CW/CCW | Direction input; floating for default direction, grounded for reverse |
For the default direction, connect red to the selected motor supply positive and black to ground; leave white unconnected. To reverse that direction, connect white to black ground. Blue is the 0–5 V PWM signal input; yellow isFG output. FG provides 12 pulses per motor-shaft revolution; the output-shaft pulse reference is 12 multiplied by reduction ratio. It provides speed feedback, not absolute position.
Optional Controller Connections
The controller reference identifies powerV+ andV− as DC supply inputs; motorVCC+ goes to red, motorGND− to black, andCW/CCW to white. YellowFG is not connected to this controller.
- Speed-control mode:blue motorPWM lead connects to controllerPWM; BRAKE terminal is left open. Speed control and direction switching are available.
- Brake-control mode:blue motorPWM lead connects to controllerBRAKE; controllerPWM terminal is left open. This mode provides stop/brake and direction switching, without speed adjustment.
The illustrated controller board accepts 6–30 V DC. Do not connect it directly to 220 V AC. Change direction only after the motor has stopped. Match the supply to the selected 12 V or 24 V motor winding. Check actual controller terminal labels before wiring.
Mechanical Installation and Operation
Use the ratio-specific gearbox lengthL and reference drawing before machining. Mounting holes are 4×M4, 6 mm deep; avoid bottoming screws. The optional bracket drawing shows 70×50 mm base, 60 mm height, 3 mm thickness, a 28.2 mm central opening and 35 mm mounting-circle reference. Use the bracket only where mechanical fit matches.
Avoid overload and stalled operation; speed falls with load and noise changes with speed and load. Assess cooling, current demand and duty cycle for the actual mechanism. Do not use a stall figure as a normal operating point.
Applications
- Compact automation mechanisms requiring geared brushless rotation and speed control.
- Small robotic mechanisms where the selected torque, speed and feedback interface fit the controller.
- Material-handling and office-automation equipment matched to the shaft, mounting and electrical requirements.
What's Included
- Motor Only:one selected five-wire geared motor with internal driver.
- Motor + Mounting Bracket:one selected motor and the pictured bracket/mounting hardware.
- Motor + Enclosed Controller:one selected motor and one enclosed control board.
- Motor + Open-Board Controller:one selected motor and one open PCB control board.
- Motor + Open-Board Controller + Bracket:one motor, one open PCB controller and the pictured bracket/mounting hardware.
Power supply, external eight-wire driver, robot and complete machine are not included. Comparison and internal-construction photos do not imply extra motors, loose gears or a separate internal-driver board in the package.
FAQ
Is a separate brushless driver required for the listed motor?
The five-wire motor has an internal driver. The optional controller provides convenient control connections; an eight-wire external-driver motor is a different custom configuration.
Are the 12 V and 24 V motors the same power?
No. The performance references differ:approximately 10 W for 12 V and 50 W for 24 V. Match both voltage and operating point.
Can the optional controller brake and adjust speed at the same time?
The illustrated connection modes are alternatives. Speed mode connects the blue lead toPWM; stop/brake mode connects it toBRAKE and has no speed adjustment.
DoesFG give gearbox-output position?
No. FG is motor-shaft speed feedback with 12 pulses per motor revolution. Output pulse reference scales with gearbox ratio; it is not an absolute-position interface.
Visual Details
