GP16

Planetary gearhead platform. 22 published ratios, 6 published configurations.

Diameter: 16mm
Ratio range: 4.5 to 850.31:1
Stages: 1 to 4
Rated output torque: 29.4 to 490 mN·m
Length: 17.3 to 25.2 mm
Revision: A, reviewed 2026-08-18

Envelope

Side elevation of the GP16 gearhead at its shortest published ratio, 4.5:1 over 1 stage, drawn to scale from ⌀16.0 mm by 17.3 mm. Length grows with stage count; every ratio's own length is in the table below.

Every published ratio

Length, rated output torque and typical efficiency change with the stage count. The bore, the mounting face and the diameter do not.

GP16 ratios
SKU	Ratio :1	Stages	Length mm	Rated output torque mN·m	Typical efficiency %	Output rotation
Compare MM-GP16-00045 MM-GP16-00045	4.5	1	17.3	29.4	81	Same as motor
Compare MM-GP16-00156 MM-GP16-00156	15.58	2	17.3	49	66	Same as motor
Compare MM-GP16-00192 MM-GP16-00192	19.22	2	18	294	66	Same as motor
Compare MM-GP16-00203 MM-GP16-00203	20.25	2	17.3	49	66	Same as motor
Compare MM-GP16-00237 MM-GP16-00237	23.68	2	18	294	66	Same as motor
Compare MM-GP16-00239 MM-GP16-00239	23.88	2	17.3	49	66	Same as motor
Compare MM-GP16-00292 MM-GP16-00292	29.16	2	18	294	66	Same as motor
Compare MM-GP16-00615 MM-GP16-00615	61.51	3	20.5	98.1	53	Same as motor
Compare MM-GP16-00843 MM-GP16-00843	84.29	3	21.6	392	53	Same as motor
Compare MM-GP16-01038 MM-GP16-01038	103.81	3	21.6	392	53	Same as motor
Compare MM-GP16-01075 MM-GP16-01075	107.48	3	20.5	98.1	53	Same as motor
Compare MM-GP16-01279 MM-GP16-01279	127.86	3	21.6	392	53	Same as motor
Compare MM-GP16-01575 MM-GP16-01575	157.46	3	21.6	392	53	Same as motor
Compare MM-GP16-02428 MM-GP16-02428	242.79	4	23.7	147	43	Same as motor
Compare MM-GP16-03265 MM-GP16-03265	326.46	4	23.7	147	43	Same as motor
Compare MM-GP16-03696 MM-GP16-03696	369.59	4	25.2	490	43	Same as motor
Compare MM-GP16-04101 MM-GP16-04101	410.06	4	23.7	196	43	Same as motor
Compare MM-GP16-04552 MM-GP16-04552	455.19	4	25.2	490	43	Same as motor
Compare MM-GP16-04837 MM-GP16-04837	483.66	4	23.7	196	43	Same as motor
Compare MM-GP16-05606 MM-GP16-05606	560.6	4	25.2	490	43	Same as motor
Compare MM-GP16-06904 MM-GP16-06904	690.42	4	25.2	490	43	Same as motor
Compare MM-GP16-08503 MM-GP16-08503	850.31	4	25.2	490	43	Same as motor

Tick up to 4 products, then compare them side by side.

What this gearhead fits.

Published configurations using GP16
Configuration	Ratio :1	No-load output speed rpm	Continuous output torque mN·m	Torque margin ×
MM-C1626-P04552-240A	455.19	27.9	191.8	2.55
MM-C1636-P00203-060B	20.25	300.7	19.6	2.49
MM-C1636-P04552-240A	455.19	26.1	191.8	2.55
MM-C1726-P00203-060A	20.25	352.1	20	2.44
MM-C1726-P01575-120A	157.46	45.3	150.2	2.61
MM-C1736-P00292-240C	29.16	240.1	84.7	3.47