CHIHAI 16GR030 Miniature DC Gear Motor

Overview

The CHIHAI MOTOR 16GR030 is a miniature DC gear motor with all-metal reduction gears,a copper-wound brushed motor and a D-shaped output shaft. Choose the electrical winding,nominal reduction ratio and motor-only or mounting-bracket package to suit a compact mechanism.

Features

Compact15.5mm-diameter gearbox reference and approximately20g motor mass.
Nine nominal gear ratios from10:1 to360:1.
Six voltage/winding combinations with separate performance tables.
Reversible two-terminal DC motor drive.
Optional L bracket and fixing screws.

Specifications

Item	Specification
Model family	16GR030 / CHR-16GR-030;performance table headed CHR-GM16-030PA
Construction	Permanent-magnet brushed DC motor;all-metal reduction gears and copper winding
Electrical options	12V08,9V08,6V08,6V10,6V14,3V14;different winding references
Diameter	15.5 +/-0.2 mm drawing reference
Output shaft	Sales specification:diameter3mm,D-flat2.5mm;projection10mm, drawing10+/-0.3mm
Drawing discrepancy	Mechanical drawing labels shaft diameter4.0mm despite3mm specification;verify physical shaft before machining
Motor body length	18.6mm drawing reference;gearbox length11+/-0.2mm
Front mount	Two M2x0.4 holes;9.0mm spacing;front boss diameter3.0mm reference
Net motor mass	Approximately20g
Nominal ratios	10:1,20:1,35:1,63:1,86:1,115:1,150:1,250:1,360:1
Bracket	Optional L-shaped metal bracket with two shown screws;only bracket package
Control	Two DC terminals;reverse polarity to reverse rotation;external matched DC control optional

Electrical Performance by Winding

Each table applies only to its selected voltage and winding type. Rated torque is in g·cm;stall torque is in kgf·cm. The red high-ratio references specify a maximum permissible gearbox load of3.0kgf·cm(0.3N·m),not a measured stall torque or payload. Maximum-power values are reference points and do not establish continuous output ratings.

12V / Type08

Maximum power1.5W;unreduced motor speed reference18000rpm. No-load current≤65mA;rated current≤0.16A;stall current≤0.75A.

Ratio	No-load rpm	Rated g·cm	Rated rpm	Stall kgf·cm / gearbox limit
10:1	1750	50	1450	≥0.3
20:1	880	100	730	≥0.6
35:1	500	170	420	≥1
63:1	280	300	230	≥2
86:1	205	400	170	≥2.5
115:1	155	550	125	Maximum permissible load3.0kgf·cm(0.3N·m)
150:1	115	750	100	Maximum permissible load3.0kgf·cm(0.3N·m)
250:1	70	1250	58	Maximum permissible load3.0kgf·cm(0.3N·m)
360:1	50	1800	40	Maximum permissible load3.0kgf·cm(0.3N·m)

9V / Type08

Maximum power1.2W;unreduced motor speed reference14000rpm. No-load current≤55mA;rated current≤0.12A;stall current≤0.56A.

Ratio	No-load rpm	Rated g·cm	Rated rpm	Stall kgf·cm / gearbox limit
10:1	1350	50	1150	≥0.25
20:1	675	100	580	≥0.5
35:1	385	170	330	≥0.8
63:1	215	300	185	≥1.8
86:1	160	400	135	≥2.3
115:1	120	550	100	Maximum permissible load3.0kgf·cm(0.3N·m)
150:1	90	750	77	Maximum permissible load3.0kgf·cm(0.3N·m)
250:1	55	1250	45	Maximum permissible load3.0kgf·cm(0.3N·m)
360:1	38	1800	32	Maximum permissible load3.0kgf·cm(0.3N·m)

6V / Type08

Maximum power0.7W;unreduced motor speed reference9000rpm. No-load current≤50mA;rated current≤0.10A;stall current≤0.38A.

Ratio	No-load rpm	Rated g·cm	Rated rpm	Stall kgf·cm / gearbox limit
10:1	900	50	780	≥0.2
20:1	450	100	385	≥0.45
35:1	250	170	220	≥0.7
63:1	140	300	120	≥1.5
86:1	105	400	90	≥2
115:1	80	550	68	≥2.3
150:1	60	750	50	Maximum permissible load3.0kgf·cm(0.3N·m)
250:1	35	1250	30	Maximum permissible load3.0kgf·cm(0.3N·m)
360:1	25	1800	22	Maximum permissible load3.0kgf·cm(0.3N·m)

6V / Type10

Maximum power0.9W;unreduced motor speed reference14000rpm. No-load current≤65mA;rated current≤0.23A;stall current≤0.9A.

Ratio	No-load rpm	Rated g·cm	Rated rpm	Stall kgf·cm / gearbox limit
10:1	1350	50	1100	≥0.25
20:1	680	100	550	≥0.5
35:1	390	170	315	≥0.8
63:1	220	300	175	≥1.8
86:1	160	400	125	≥2.3
115:1	120	550	95	Maximum permissible load3.0kgf·cm(0.3N·m)
150:1	90	750	73	Maximum permissible load3.0kgf·cm(0.3N·m)
250:1	55	1250	45	Maximum permissible load3.0kgf·cm(0.3N·m)
360:1	38	1800	30	Maximum permissible load3.0kgf·cm(0.3N·m)

6V / Type14

Maximum power2.0W;unreduced motor speed reference23500rpm. No-load current≤150mA;rated current≤0.6A;stall current≤2.5A.

Ratio	No-load rpm	Rated g·cm	Rated rpm	Stall kgf·cm / gearbox limit
10:1	2350	60	1900	≥0.3
20:1	1175	120	950	≥0.6
35:1	670	210	540	≥1
63:1	370	380	300	≥1.9
86:1	270	500	220	≥2.5
115:1	200	700	165	Maximum permissible load3.0kgf·cm(0.3N·m)
150:1	155	900	125	Maximum permissible load3.0kgf·cm(0.3N·m)
250:1	95	1500	75	Maximum permissible load3.0kgf·cm(0.3N·m)
360:1	65	2000	50	Maximum permissible load3.0kgf·cm(0.3N·m)

3V / Type14

Maximum power0.4W;unreduced motor speed reference11700rpm. No-load current≤100mA;rated current≤0.55A;stall current≤1.4A.

Ratio	No-load rpm	Rated g·cm	Rated rpm	Stall kgf·cm / gearbox limit
10:1	1150	50	730	≥0.2
20:1	580	100	360	≥0.45
35:1	330	170	210	≥0.7
63:1	185	300	115	≥1.5
86:1	135	400	85	≥2
115:1	100	550	60	≥2.3
150:1	75	750	48	Maximum permissible load3.0kgf·cm(0.3N·m)
250:1	45	1250	29	Maximum permissible load3.0kgf·cm(0.3N·m)
360:1	32	1800	20	Maximum permissible load3.0kgf·cm(0.3N·m)

Configuration Guide

Type08,Type10 and Type14 are distinct motor winding/speed configurations;6V alone is not enough to identify the performance table. The selector names the actual winding and voltage. Choose motor-only or one motor with an L mounting bracket. Images show representative appearance shared across electrical options.

Mounting and Dimensions

Check the3mm sales shaft description against the4.0mm diameter label in the mechanical drawing before machining a coupling. The10mm projection and2.5mm D-flat reference are retained;do not infer an exact fit from the shared representative photograph.

The bracket drawing specifies25mm width,19mm height,9.5mm base depth and1.2mm sheet thickness. It also marks11.5mm,6.5mm,2.2mm,1.8mm,2.3mm,3.4mm,diameter3.85mm,R1.5,diameter4mm,diameter2.2mm anddiameter9mm for holes/slots and spacing;use the complete drawing for the relationships before fabrication.

Optional Speed Controller Reference

The pictured stepless controller is a reference accessory and is not included in either sales package. Its supply range isDC2.2-12V,with1.8-12V adjustment reference and input current below2A. It has an RV097NS switched potentiometer with a7mm mounting hole,a2A resettable fuse,LED indicator and screw terminals. Match any separate controller to the chosen motor voltage and starting current;the6V Type14 stall-current reference exceeds2A,so this pictured controller is not a universal match.

Applications

Compact robots and smart-home motion mechanisms.
Small focus adjustment and miniature camera pan/tilt fixtures.
Light-duty rotating or positioning mechanisms within the selected ratings.

What's Included

Motor Only:one selected motor. Motor+Bracket:one selected motor,one L bracket and the two shown fixing screws. No speed controller,power supply,wires,coupler or complete application device is included.

Installation and Operation

Use a DC supply matched to the selected voltage and winding. Check shaft,mounting fit and polarity before operation. Avoid overload,stall and forcing the output shaft. Torque,current and heat vary with load;maximum power and stall values are not continuous-duty instructions.