EMAX ES9251 II 4 g digital servo — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/emax-es9251-ii-servo/  (sheet CC BY 4.0)
Basis: EMAX official shop (maker)
Catalog version: 2026-10-20

Overall (mm): length 18.02, width 7.91, height 16.8
- 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.

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

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- EMAX: ES9251 II 4 g plastic micro digital servo — web — Publisher's page; dimensions are facts — https://shop.emaxmodel.com/products/emax-es9251-ii-4g-plastic-micro-digital-servo-for-rc-model

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/emax-es9251-ii-servo/index.json
API: https://xemstudio.com/api/geometry?object=emax-es9251-ii-servo