CHIHAI 36GP-BLDC3525 Brushless Planetary Gear Motor

Overview

The CHIHAI MOTOR CHP-36GP-BLDC3525 is a compact brushless DC gear motor with an all-metal planetary gearbox and built-in Hall commutation driver. Choose the12V or24V motor winding, reduction ratio and accessory package for a small motion or automation mechanism.

Configuration Guide

Available nominal ratios are5:1,14:1,19:1,27:1,51:1,100:1,139:1 and515:1. The nominal5:1 option uses the5.2:1 performance reference.14:1 is a real selectable configuration, but its detailed performance and gearbox length are not specified here.264:1 appears only as an unavailable performance reference and is not a sale option.

Choose Motor Only, Motor + Bracket, Motor + PWM Controller, or Motor + PWM Controller + Bracket. Each package contains one selected-ratio/voltage motor and only the named accessories. Power supply, complete machinery and application hardware are not included.

Mechanical Specifications

Parameter	Reference
Gearbox / motor diameter	36mm gearbox;35.8mm maximum motor diameter
Motor section length	25mm
Output shaft	8mm D shaft (+0/−0.03mm),7mm across flat (+0/−0.1mm);20±0.5mm projection,15±0.15mm flat length
Front locating boss	22mm diameter (+0/−0.05mm),2mm projection
Mounting holes	4×M3,6mm deep,on28±0.1mm pitch circle
Gearbox L	5.2:1:26.5mm;19/27:1:34.5mm;51/100/139:1:42.5mm;515:1:50.5mm; L tolerance±0.5mm. Confirm14:1 before machining.
Lead	280mm,22AWG reference
Motor net mass	Approximately240–350g,depending on ratio;300g general reference

Performance

12V Motor Reference

Maximum output-power reference 2W; no-load current ≤120mA; rated current ≤.25A; cutoff protection reference .5A.

Actual ratio	No-load rpm	Rated rpm	Rated kgf·cm	Rated N·m
5.2	525	400	0.35	0.03
19	145	110	1.2	0.12
27	100	75	1.7	0.17
51	55	40	3.2	0.32
100	27	20	6.5	0.65
139	20	15	9	0.9
264 (unavailable)	10	8	17	1.7
515	5	4	25	2.5

24V Motor Reference

Maximum output-power reference 8W; no-load current ≤160mA; rated current ≤.4A; cutoff protection reference 1.0A.

Actual ratio	No-load rpm	Rated rpm	Rated kgf·cm	Rated N·m
5.2	1050	805	0.7	0.07
19	290	220	2.5	0.25
27	200	155	3.5	0.35
51	110	82	6.5	0.65
100	55	42	13	1.3
139	40	30	18	1.8
264 (unavailable)	21	16	34	3.4
515	10.5	8	50	5

The264:1 row is reference data only and is unavailable. Maximum output power is not a continuous-duty rating; the cutoff threshold is not a normal operating target. Avoid overload and stalled operation. Size the power supply and protection for the selected motor and actual load.

Five-Wire Control and FG Feedback

Lead	Function
Red	Motor supply positive,use selected12V or24V
Black	Supply negative / ground
White	CW/CCW direction input;open and connected to ground select opposite directions
Blue	PWM speed input,0–5V; analog speed-reference range1.2–3.3V
Yellow	FG open-collector feedback,9pulses per MOTOR revolution before reduction

FG electrical reference:5V/10kΩ pull-up, high≥4V,low≤0.6V,maximum sink5mA. Output-shaft pulses equal9times the actual ratio. Direction input0–5V, high≥2V and low≤0.2V; verify output direction unloaded because gearing and viewing direction matter. The12V termination table specifies±10% supply tolerance for that reference only; do not apply it as a24V tolerance specification.

Never reverse red/black supply polarity or apply motor voltage to signal leads. Change direction using the white lead after stopping. One reversal method is to disconnect power,wait2–3seconds and then restart with the new direction state; alternatively reduce speed substantially before changing the direction signal. Avoid instantaneous direction changes, repeated rapid starts and forced back-driving.

The internal driver provides brushless commutation. The optional external controller provides manual PWM/direction control; it is not required simply to run the internally driven motor. Keep FG disconnected from that controller because it has no FG speed-measurement input. Illustrated brake wiring is an alternative arrangement without speed regulation and requires compatible motor braking support; braking is not promised as a standard function.

Applications

Use the reduction ratio to match speed and load in compact robots, smart mechanisms, inspection equipment and small automation projects. Confirm mounting, shaft fit, continuous load and the actual control interface before installation. Application machinery is not included.

What's Included

One selected motor,plus the bracket and/or PWM controller only when named in the selected package. Power supply and complete installation equipment are not included.