electrical center b2c

28GP-365S Planetary Gear DC Motor| 12-24V

Name: 28GP-365S Planetary Gear DC Motor| 12-24V
Brand: electrical center b2c
SKU: 28GP-365 Motor / DC12V Reduction Ratio 1:264
Price: 44.9 USD
Availability: InStock

$44.90 USD

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Motor Config. 28GP-365 Motor 28GP-365 Motor + Encoder 28GP-365 Motor + Reversible Speed Controller

Motor Voltage&Reduction Ratio DC12V Reduction Ratio 1:264 DC24V Reduction Ratio 1:264 DC12V Reduction Ratio 1:369 DC24V Reduction Ratio 1:369

Product variants

Quantity

28mm Planetary DC Motor with Encoder, 12V, High Torque 1:264 Ratio

Reversible Speed Control Planetary Motor, 24V, Low Speed 1:369 Ratio

Product Overview

The CHP-28GP-365S permanent magnet DC planetary gear motor is a compact, high-efficiency motor designed for applications requiring high torque, low speed, and precise motion control. With multiple gear ratios, optional encoder feedback, and wide voltage compatibility, it’s ideal for robotics, smart home devices, and automation projects.

Key Features

All-Metal Planetary Gearbox: Durable metal gears for high torque, low noise, and long service life.
Multiple Gear Ratios: Choose from 1:3.7 to 1:515 to customize speed and torque (e.g., 2350 RPM at 1:3.7 / 8.7 RPM at 1:515, 24V).
Wide Voltage Compatibility: Supports DC 12-24V operation, with optimized performance at both voltages.
Optional Upgrades: Available with an encoder for closed-loop speed control or a reversible speed controller for bidirectional operation.
Robust Output Shaft: 6mm flat shaft (12mm length, 4mm thick) for secure mounting and power transmission.

Specifications (CHP-28GP-365S)

Model: CHP-28GP-365S
Brand: ChiHai Motor
Rated Voltage: DC 12V / 24V (12-24V compatible)
Motor Type: Permanent Magnet DC Planetary Gear Motor
Gear Ratios: 1:3.7, 1:5.2, 1:14, 1:19, 1:27, 1:51, 1:71, 1:100, 1:139, 1:264, 1:369, 1:515
Output Shaft: 6mm flat shaft, 12mm length, 4mm thick
Outer Diameter: 28mm
Weight: Approx. 228g (varies by gear ratio)
Max Allowable Stall Torque: 40 kgf·cm (for high ratio versions)

Available Configurations

Standard Planetary Gear Motor
Planetary Motor with Encoder
Planetary Motor with Reversible Speed Controller

Applications

Perfect for smart robots, electric curtains, smart balance cars, robotic arms, camera focus systems, and other automation projects requiring controlled, high-torque motion.

DATA SHEET

Attribute	Value
Product Type	Planetary Gear DC Motor
Model	CHP-28GP-365S
Brand	ChiHai Motor
Rated Voltage	DC 12V / 24V
Motor Type	Permanent Magnet DC Motor
Gear Ratios	1:3.7 to 1:515
Output Shaft	6mm flat shaft, 12mm length
Outer Diameter	28mm
Optional Accessories	Encoder, Reversible Speed Controller
Applications	Smart Robots, Electric Curtains, Balance Cars, Robotic Arms

DC Planetary Gear Motor Specifications

This is the performance parameter table for the CHP-28GP-365S series planetary gear DC motor.

DC 24.0V Operation

Parameter	1:3.7	1:5.2	1:14	1:19	1:27	1:51	1:71	1:100	1:139	1:264	1:369	1:515
Gear Ratio	1:3.7	1:5.2	1:14	1:19	1:27	1:51	1:71	1:100	1:139	1:264	1:369	1:515
No-Load Current (mA)	≤200	≤200	≤200	≤200	≤200	≤200	≤200	≤200	≤200	≤200	≤200	≤200
No-Load Speed (rpm)	2350	1700	640	470	330	176	125	90	64	34	24	17
Rated Torque (kg·cm)	0.20	0.26	0.70	1.00	1.30	2.40	3.40	5.00	7.0	13.0	18.0	24.0
Rated Speed (rpm)	1780	1200	470	340	240	128	90	66	46	24	16	12
Rated Current (mA)	≤0.50	≤0.50	≤0.50	≤0.50	≤0.50	≤0.50	≤0.50	≤0.50	≤0.50	≤0.50	≤0.50	≤0.50
Stall Torque (kg·cm)	≥0.5	≥0.8	≥2.0	≥2.5	≥3.5	≥4.3	≥9.0	≥20.0	≥35.0	Max 40.0	Max 40.0	Max 40.0
Stall Current (mA)	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4

DC 12.0V Operation

Parameter	1:3.7	1:5.2	1:14	1:19	1:27	1:51	1:71	1:100	1:139	1:264	1:369	1:515
Gear Ratio	1:3.7	1:5.2	1:14	1:19	1:27	1:51	1:71	1:100	1:139	1:264	1:369	1:515
No-Load Current (mA)	≤150	≤150	≤150	≤150	≤150	≤150	≤150	≤150	≤150	≤150	≤150	≤150
No-Load Speed (rpm)	1200	860	320	235	165	88	63	45	32	17	12	8.7
Rated Torque (kg·cm)	0.10	0.14	0.35	0.50	0.65	1.20	1.70	2.50	3.50	6.50	9.0	12.0
Rated Speed (rpm)	890	600	235	170	120	64	46	33	23	12	8	6
Rated Current (A)	≤0.25	≤0.25	≤0.25	≤0.25	≤0.25	≤0.25	≤0.25	≤0.25	≤0.25	≤0.25	≤0.25	≤0.25
Stall Torque (kg·cm)	≥0.3	≥0.4	≥1.0	≥1.3	≥1.8	≥2.2	≥4.5	≥9.0	≥10.0	≥20.0	≥28.0	≥40.0
Stall Current (A)	≤0.7	≤0.7	≤0.7	≤0.7	≤0.7	≤0.7	≤0.7	≤0.7	≤0.7	≤0.7	≤0.7	≤0.7
Gearbox Length (L)	27.5mm	35.5mm	35.5mm	35.5mm	43.5mm	43.5mm	43.5mm	43.5mm	43.5mm	51.5mm	51.5mm	51.5mm