Motor stator size naming (e.g. 2207) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/motor-stator-size/  (sheet CC BY 4.0)
Basis: Design rules and figures from the cited sources; example geometry by Xem Studio
Catalog version: 2026-10-20

Sizes: see table below
- A four-digit motor code gives stator dimensions in mm: the first two digits are diameter, the last two height, so 2206 is 22 x 6 mm and 2207 is 22 x 7 mm (GetFPV). They do not describe the outer can.
- Larger stators turn bigger props: 5 in builds use 2207-2308 class motors, 7 in use 2806-3106 (Oscar Liang).

parameter  value or range  source
2207  22 mm dia x 7 mm stator  GetFPV
5 in prop motors  2306, 2207, 2208, 2308  Oscar Liang table
7 in prop motors  2806, 2807, 2808, 3106  Oscar Liang table
3 in prop motors  1303-1506  Oscar Liang table
Mount, 220x-240x motors  16 x 19 mm, M3  GetFPV

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- GetFPV: What is a drone motor? — web — Publisher's page; dimensions are facts — https://www.getfpv.com/motors/what-is-a-drone-motor.html
- Oscar Liang: Prop, motor, LiPo and weight table — web — Publisher's page; dimensions are facts — https://oscarliang.com/table-prop-motor-lipo-weight/

No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.
API: https://xemstudio.com/api/geometry?object=motor-stator-size