CHIHAI GW4632-370ABHL Encoder Worm Gear Motor

Overview

The CHIHAI MOTOR CHW-GW4632-370ABHL is a worm DC gear motor with an 11PPR AB Hall encoder, 6 mm D-shaft and PH2.0 six-pin motor connection. Select the voltage and winding, reduction ratio, accessory package and lead-end style for the mechanism.

Features

Right-angle worm reduction with resistance to back-driving when unpowered.
Reversible permanent-magnet brushed DC motor with copper winding.
AB incremental feedback for external speed and rotation monitoring.
Motor-only, bracket and single-wheel drive-kit packages.
Four lead-end choices without changing the six-pin encoder-board interface.

Specifications

Item	Specification
Model	CHW-GW4632-370ABHL
Motor type	Permanent-magnet brushed DC with worm reduction and AB Hall encoder
Voltage / winding choices	6V A, 12V A, 12V B, 24V B
Ratios	32:1, 65:1, 158:1, 200:1, 337:1, 564:1, 1019:1
Output shaft	6 mm D-shaft, 5.4 mm flat dimension; 12 mm flat-length reference
Shaft projection	18.5 mm engineering-drawing reference; dimension photograph shows 16.5 mm; verify required clearance before fabrication
Shaft-center thread	M3 x0.5; effective thread depth 10 mm
Gearbox envelope	32 x46 x25.2 mm drawing reference; dimension photograph shows22.5 mm thickness, verify actual fit
Mounting	4-M3, 18 x33 mm pattern; 4 x7.4 mm counterbore references
Other mechanical references	1.7 mm front step; 30.8 mm motor extension; 40 mm rear assembly reference; motor diameter24.4 mm; rear feature diameter14 mm
Net mass	Approximately200 g, varies with ratio/configuration
Encoder connector on motor	PH2.0-6PIN
Lead-end choices	Single-ended lead, PH2.0 output, XH2.54 output or Dupont output
Encoder resolution	11PPR at motor shaft; output-shaft pulse references scale with actual ratio
Encoder supply	Separate regulated3.3V or5V DC
Encoder output	AB incremental magnetic Hall, square wave, onboard pull-up/shaping resistors
Response frequency	100kHz reference
Magnetic ring	22 poles /11 pole pairs
Optional bracket	38 mm width,46 mm upright,30 mm base,3 mm thickness
Wheel kit	One65 mm wheel with6 mm coupling, bracket and pictured mounting parts; tread/rim example varies

Configuration Guide

A and B identify different motor winding references. The 12V A and 12V B versions have different speed, current and maximum-output references; match the complete voltage/winding choice to its table. The Package and Lead option combines the selected accessory set with its lead-end style, while ratio and voltage/winding remain separate selections.

The wheel package contains one 65 mm wheel, one 6 mm coupling and the bracket with the selected motor. The illustrated blue, red and yellow wheels are alternative tread/rim examples, not three included wheels. No particular tread or rim color is guaranteed by the available selections.

Encoder and Wiring

The board has an 11PPR motor-shaft base encoder, 22 magnetic poles /11 pole pairs, a 100 kHz response reference and onboard pull-up/shaping resistors. Output-shaft pulses depend on the actual reduction ratio; decoder edge counting is separate.

Board terminal, top-to-bottom in diagram	Function
M1	Motor power input1
GND	Encoder supply negative
C1	Encoder channel A
C2	Encoder channel B
VCC	Encoder regulated3.3V/5V positive
M2	Motor power input2

Use board labels and the selected harness orientation rather than assuming a common wire-color order across all lead styles. Supply encoder VCC separately with regulated 3.3V or 5V, and keep selected motor voltage away from the encoder supply and signals. Reverse M1/M2 polarity for opposite motor rotation. A separate motor driver and pulse-reading controller are required for a complete feedback-control system.

Performance by Voltage and Winding

No-load, rated and stall figures describe different operating conditions. Maximum output is a separate reference, not continuous power at every reduction ratio. The kgf·cm and N·m columns are independently rounded. Avoid overload and sustained stall; red-table ≥35 kgf·cm references explicitly prohibit stalled operation.

24V B

Maximum output reference 6 W; no-load current ≤200 mA; rated current ≤0.7 A; stall current ≤2.5 A.

Ratio	No-load rpm	Rated kgf·cm	Rated N·m	Rated rpm	Stall kgf·cm reference
32:1	375	1.5	0.15	260	5
65:1	180	3	0.29	130	10
158:1	74	7	0.69	52	24
200:1	60	9	0.88	42	30
337:1	35	14	1.37	25	≥35; do not stall
564:1	21	23	2.3	15	≥35; do not stall
1019:1	12	30	2.9	8	≥35; do not stall

12V B

Maximum output reference 1.5 W; no-load current ≤150 mA; rated current ≤0.6 A; stall current ≤1.5 A.

Ratio	No-load rpm	Rated kgf·cm	Rated N·m	Rated rpm	Stall kgf·cm reference
32:1	180	1	0.1	110	2.5
65:1	90	2	0.2	55	5
158:1	38	5	0.5	22	12
200:1	30	6	0.6	18	15
337:1	18	10	1	10.5	25
564:1	10	16	1.6	6	≥35; do not stall
1019:1	6	30	3	4	≥35; do not stall

12V A

Maximum output reference 6 W; no-load current ≤250 mA; rated current ≤1.3 A; stall current ≤5.5 A.

Ratio	No-load rpm	Rated kgf·cm	Rated N·m	Rated rpm	Stall kgf·cm reference
32:1	375	1.5	0.15	260	5
65:1	180	3	0.29	130	10
158:1	75	7	0.69	52	24
200:1	60	9	0.88	42	30
337:1	35	14	1.37	25	≥35; do not stall
564:1	21	23	2.3	15	≥35; do not stall
1019:1	12	30	2.9	8	≥35; do not stall

6V A

Maximum output reference 1.5 W; no-load current ≤150 mA; rated current ≤1 A; stall current ≤2.8 A.

Ratio	No-load rpm	Rated kgf·cm	Rated N·m	Rated rpm	Stall kgf·cm reference
32:1	180	1	0.1	110	2.5
65:1	90	2	0.2	55	5
158:1	38	5	0.5	22	12
200:1	30	6	0.6	18	15
337:1	18	10	1	10.5	25
564:1	10	16	1.6	6	≥35; do not stall
1019:1	6	30	3	4	≥35; do not stall

Mechanical Installation

The engineering drawing gives an 18.5 mm shaft projection and M3 x0.5 center thread with 10 mm effective depth. A dimension photograph shows a 16.5 mm shaft reference; verify the actual required shaft clearance before machining a coupled assembly. The optional bracket has a 38 mm width, 46 mm upright, 30 mm base and 3 mm material thickness. Its two central openings are10 mm; mounting holes are3.3 mm with7.8 mm counterbore references, and base slots are4.1 mm wide with18 mm length reference and32 mm spacing.

Worm gearing resists back-driving and is intended to hold against ordinary reverse loads when power is removed. Holding behavior depends on ratio, load and mechanism; verify it for the application and provide an independent holding device where load safety requires it. Do not force the shaft, overload the gears or use sustained stall as a holding method. Match power supply, motor driver and protection to the selected winding and startup current.

Applications

Suitable for matched self-balancing robot development, inspection and line-following carts, smart appliances, camera pan mechanisms and powered positioning assemblies using external control electronics. Size the gearing, shaft support and holding method for the actual load.

What's Included

One selected CHW-GW4632-370ABHL encoder motor with the selected lead-end style. The bracket package adds the illustrated bracket and mounting hardware. The wheel package adds the bracket, one6 mm coupling, one65 mm wheel and pictured installation parts. A second motor, complete robot, power supply, motor driver and encoder controller are not included.