CC-BYJ48-DS-28BYJ48 rev A Size datasheet - 28BYJ48
'?) CommunityCAD
28BYJ- 48 geared stepper motor, 5 V and 12 V
Size datasheet: this size's values with their levels, conventions and sources.
For 28BYJ-48 motor mounts, ULN2003 driver projects and small gear trains
Part key geared - steppers - 28byj48 Files 1 STEP AP214 (simplified) 28BYJ48, front face, 0.5:1 28BYJ48, side, 0.75:1 (hidden lines dashed) Sym. Dimension Value Level D Body diameter 28 L1- 2 H Body height 19 L1- 2 A Mounting hole spacing 35 L1- 2 dh Mounting hole diameter 4.2 L1- 2 Re Ear end radius 3.5 L1- 2 we Ear width 7 L1- 2 e Shaft offset 8 L1- 2 db Boss diameter 9x lo-41 hb Boss height 1.5 L1- 2 ds Shaft diameter 5 L1-2 sf Shaft across flats 3 L1- 2 ls Shaft length 10 L1- 2 Uf Flat length 6 L1 + 2 wb Wiring box width 14.6 L1- 2 xb Wiring box extent 17.5 L1- 2 sb Wiring box set-back 2.7% lo-41 UW Lead length (not modeled) 300 L1- 2
Modeled value: nominal, else the midpoint of min-max. s / =: only that limit is given. * amber: one source (LO). c: a source value was corrected. Level - independent sources.
No published standard: Kiatronics' and Fulling's drawings Page 1/2 28BYJ-48 geared stepper motor - 28BYJ48 - Dimensions in mm - CC-BY 4.0, lronPixel Labs LLC spec 06d85a52f6417d7ca3bac879661c871d1530757a
Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.
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* CC-BYJ48-DS-28BYJ48 rev A '?) CommunityCAD Size datasheet - 28BYJ48
Conventions
e Where the drawings differ: The largest stated: the wiring box's projection xb is Fulling's and its width wb Kiatronics', each the larger of the two drawings, so a cut-out made to the model clears both makers' motors. The boss diameter db is Kiatronics' alone and the box's set-back sb Fulling's (one source each, marked amber).
« Front plate, can and box: The front plate and ears one stamped piece, 0.03 D thick; the can behind it, its back edge chamfered; the blue wiring box from sb above the back cover to the front plate, wrapped round the can, its outer edges chamfered. Illustrative, checked for fit only.
« Leads and label: A short stub of the five coloured leads (blue, pink, yellow, orange, red) out of the box's outer face, no connector; the stated lead length is on the page, not modeled. A label recessed in the back cover with the CommunityCAD mark. Illustrative.
Sources Source Publisher Retrieved sha256 kiatronics-28byj48 Kiatronics (CERN microcontroller course copy) 2026-11-05 F867CF94e929 fulling-28byj48 Changzhou Fulling Motor (52Pi wiki copy) 2026-11-05 2e3a512da1c9
The whole series (verification map, corrections, drawings): CC-BYJ48-Ds.
No published standard: Kiatronics' and Fulling's drawings Page 2/2 28BYJ-48 geared stepper motor - 28BYJ48 - Dimensions in mm - CC-BY 4.0, lronPixel Labs LLC spec 06d85a526417d7ca3bac879661c871d1530757a
Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.