GP22

Planetary gearhead platform. 24 published ratios, 8 published configurations.

Diameter: 22mm
Ratio range: 4 to 509.07:1
Stages: 1 to 4
Rated output torque: 29.4 to 785 mN·m
Length: 15.5 to 33.3 mm
Revision: A, reviewed 2026-08-18

Envelope

Side elevation of the GP22 gearhead at its shortest published ratio, 4.5:1 over 1 stage, drawn to scale from ⌀22.0 mm by 15.5 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.

GP22 ratios
SKU	Ratio :1	Stages	Length mm	Rated output torque mN·m	Typical efficiency %	Output rotation
Compare MM-GP22-00040 MM-GP22-00040	4	1	17.7	196	81	Same as motor
Compare MM-GP22-00045 MM-GP22-00045	4.5	1	15.5	29.4	81	Same as motor
Compare MM-GP22-00048 MM-GP22-00048	4.75	1	17.7	196	81	Same as motor
Compare MM-GP22-00156 MM-GP22-00156	15.58	2	15.5	49	66	Same as motor
Compare MM-GP22-00160 MM-GP22-00160	16	2	22.9	392	66	Same as motor
Compare MM-GP22-00190 MM-GP22-00190	19	2	22.9	392	66	Same as motor
Compare MM-GP22-00203 MM-GP22-00203	20.25	2	15.5	49	66	Same as motor
Compare MM-GP22-00226 MM-GP22-00226	22.56	2	22.9	392	66	Same as motor
Compare MM-GP22-00239 MM-GP22-00239	23.88	2	15.5	49	66	Same as motor
Compare MM-GP22-00615 MM-GP22-00615	61.51	3	18.7	98.1	53	Same as motor
Compare MM-GP22-00640 MM-GP22-00640	64	3	28.1	588	53	Same as motor
Compare MM-GP22-00760 MM-GP22-00760	76	3	28.1	588	53	Same as motor
Compare MM-GP22-00903 MM-GP22-00903	90.25	3	28.1	588	53	Same as motor
Compare MM-GP22-01072 MM-GP22-01072	107.17	3	28.1	588	53	Same as motor
Compare MM-GP22-01075 MM-GP22-01075	107.48	3	18.7	98.1	53	Same as motor
Compare MM-GP22-02428 MM-GP22-02428	242.79	4	21.9	147	43	Same as motor
Compare MM-GP22-02560 MM-GP22-02560	256	4	33.3	785	43	Same as motor
Compare MM-GP22-03040 MM-GP22-03040	304	4	33.3	785	43	Same as motor
Compare MM-GP22-03265 MM-GP22-03265	326.46	4	21.9	147	43	Same as motor
Compare MM-GP22-03610 MM-GP22-03610	361	4	33.3	785	43	Same as motor
Compare MM-GP22-04101 MM-GP22-04101	410.06	4	21.9	196	43	Same as motor
Compare MM-GP22-04287 MM-GP22-04287	428.69	4	33.3	785	43	Same as motor
Compare MM-GP22-04837 MM-GP22-04837	483.66	4	21.9	196	43	Same as motor
Compare MM-GP22-05091 MM-GP22-05091	509.07	4	33.3	785	43	Same as motor

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

What this gearhead fits.

Published configurations using GP22
Configuration	Ratio :1	No-load output speed rpm	Continuous output torque mN·m	Torque margin ×
MM-B2419-P03610-120A	361	17.2	304.3	2.58
MM-C1736-P02560-060B	256	19.1	319.2	2.46
MM-C1837-P00226-240C	22.56	427.3	87.6	4.48
MM-C1837-P00903-120D	90.25	113.0	234.4	2.51
MM-C2137-P00226-240C	22.56	345.7	124.2	3.16
MM-C2137-P00903-120C	90.25	27.5	234.4	2.51
MM-C2432-P00190-240A	19	506.8	160.5	2.44
MM-C2432-P00760-090A	76	127.0	236.8	2.48