Library › RC planes › Micro servos ·
EMAX ES9251 II 4 g digital servo
What are the dimensions of the EMAX ES9251 II 4 g digital servo? · Modern device · basis: EMAX official shop (maker)
Also called: es9251 ii dimensions, emax es9251 size, es9251, 4g servo, 5g servo, 3.7g servo, sub micro servo, micro servo 4g medidas, servo 4g, Mikroservo 4g
Exact dimensions. True size, with no printing tolerance added.
- length
- 18.02 mm
- width
- 7.91 mm
- height
- 16.8 mm
Notes
- The EMAX ES9251 II is a 4 g plastic-gear micro digital servo, 18.02 × 7.91 × 16.8 mm, 4.5–6 V, 0.27 kgf·cm and 0.08 s/60° at 4.8 V, with a JR/FUT plug (EMAX).
- The file is an envelope box 18.02 × 7.91 × 16.8 mm at the published size, true size, no printing allowance. Mounting ears, output shaft and lead are not modelled.
EMAX ES9251 II 4 g digital servo size chart
| dimension | value |
|---|---|
| size | 18.02 × 7.91 × 16.8 mm (axes not labelled) |
| weight | 4 g |
| voltage | 4.5–6.0 V |
| stall torque | 0.27 kgf·cm @ 4.8 V |
| speed | 0.08 s/60° @ 4.8 V |
| plug | JR / Futaba |
| ears, spline, lead | not published in text |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| EMAX | ES9251 II 4 g plastic micro digital servo | web | Publisher's page; dimensions are facts |
Free files
★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| emax-es9251-ii-servo-envelope | An envelope box 18.02 × 7.91 × 16.8 mm (Mounting ears, output shaft and lead are not modelled) | STEP · STL |
Let your AI pull this. Add
Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=emax-es9251-ii-servo
Fits with
FreeFeetech FS90R continuous rotation servo22.5×12.1×27.7 mm★ 1 fileFreeSpektrum A2005 1.8 g linear servo (SPMSA2005)15×15×8 mm★ 1 fileFreeSpektrum A2030L long-throw linear servo (SPMSA2030L)22×17×8 mm★ 1 fileFreeEmax ES9051 4.3 g digital servo19.81×8.89×23.11 mm★ 1 fileFreeHitec HS-35HD ultra nano servo18.6×7.6×15.5 mm★ 1 fileFree
TowerPro SG90 micro servo23.1×12.2×29.0 mm★ 1 fileFree
RC servo sizes: 9 g micro (SG90, MG90S), standard (Futaba S3003, Hitec HS-311), 1/4 scale (HS-805BB)5 sizes★ 5 files


Questions
How big is the EMAX ES9251 II?
18.02 × 7.91 × 16.8 mm, 4 g.