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Feetech FS90R continuous rotation servo

What are the dimensions of the Feetech FS90R continuous rotation servo? · Modern device · basis: Feetech FS90R datasheet (maker PDF, hosted by Pololu); Pololu spec table (secondary)

Also called: fs90r dimensions, fs90r size, feetech fs90r, fs90r, 360 servo dimensions, continuous rotation servo size, servo rotación continua, servo de rotação contínua, Servo Dauerrotation

Exact dimensions. True size, with no printing tolerance added.

length
22.5 mm
width
12.1 mm
height
27.7 mm

Notes

  • The Feetech FS90R is a 9 g, 360° continuous-rotation micro servo. Feetech's datasheet gives its size as A 22.5 mm, B 12.1 mm, C 27.7 mm, a 21-tooth (4.86 mm) output spline, a 250 mm lead and 4.8–6 V.
  • Feetech does not say in text which axis C is; it is taken as the overall height, the larger of the two published third dimensions, so the envelope encloses the body either way. Pololu's 23.4 mm likely leaves out the shaft boss — check yours before cutting a tight pocket.
  • The file is an envelope box 22.5 × 12.1 × 27.7 mm at the published size, true size, no printing allowance. Mounting ears, output shaft and lead are not modelled.

Feetech FS90R continuous rotation servo size chart

dimensionvalue
A (body length)22.5 mm
B (body width)12.1 mm
C27.7 mm (datasheet); Pololu lists 23.4 mm
weight9 g ± 0.2
output spline21 T (4.86 mm)
lead250 mm ± 5 (datasheet); Pololu 10 in
voltage4.8–6 V
pulse range / stop700–2300 µs / 1500 µs
stall torque1.3 kg·cm (4.8 V), 1.5 kg·cm (6 V)
no-load speed80 rpm (4.8 V), 100 rpm (6 V)
mounting-ear span and holeson the datasheet drawing only (not in text)

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Feetech (via Pololu)FS90R datasheet (PDF)webPublisher's page; dimensions are facts
Pololu (retailer)FS90R specswebPublisher'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

feetech-fs90r-continuous-rotation-servo-envelopeAn envelope box 22.5 × 12.1 × 27.7 mm (Mounting ears, output shaft and lead are not modelled)STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=feetech-fs90r-continuous-rotation-servo

length
Schematic, not to scale.

Fits with

Questions

How big is the FS90R?

22.5 × 12.1 mm body; 27.7 mm third dimension on Feetech's datasheet (Pololu lists 23.4 mm). 9 g, 21-tooth spline.