Pololu Micro Metal Gearmotor HP 6V (e.g. 100:1): 12 × 10 mm body, 3 mm D-shaft and M1.6 face holes — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/pololu-micro-metal-gearmotor-hp-6v/  (sheet CC BY 4.0)
Basis: Pololu's micro metal gearmotor STEP model (no encoder) and the Pololu micro metal gearmotor dimension diagram.
Catalog version: 2026-10-20

Overall (mm): length 35.8, width 12.0, height 10.0
- Datum: shaft axis on Z at x=0, y=0; back terminals on z=0, output face up.
- Motor can Ø12.0 with flats to 10.0 (z=2.8..16.8); gearbox 12.0 × 10.0 × 9.0 (z=16.8..25.8).
- Output shaft Ø3.0 D-shaft, 10.0 long, flat 0.5 deep.
- Two M1.6 tapped holes in the gearbox face at (+3.8, +2.8) and (−3.8, −2.8), 9.44 apart diagonally.
- Same outside for HP, MP and LP 6V and every ratio except 1000:1 (12.0 mm gearbox); carbon-brush (HPCB) and extended-shaft versions are longer and not modelled.
- Exact nominal mm; terminals modelled as tabs, the small rear boss is not modelled.

feature  size (mm)
body (X × Y)  12.0 × 10.0
overall length incl. shaft  35.8
gearbox length  9.0
shaft  Ø3.0 D × 10.0
face holes  2 × M1.6, (±3.8, ±2.8)

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Pololu: Micro Metal Gearmotor dimension diagram (PDF) — web — Publisher's page; dimensions are facts — https://www.pololu.com/file/0J949/micro-metal-gearmotors-dimensions.pdf
- Pololu: Micro Metal Gearmotor 3D STEP models — web — Publisher's page; dimensions are facts — https://www.pololu.com/file/0J2042/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/pololu-micro-metal-gearmotor-hp-6v/index.json
API: https://xemstudio.com/api/geometry?object=pololu-micro-metal-gearmotor-hp-6v