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OUTPUT · STEP (AP214)
PARAMETRIC · 3D · STEP

Sprocket Generator

Specify chain number, number of teeth, sprocket type, and bore diameter to generate a STEP file for a roller chain sprocket.

Standard JIS B 1801:2020 / JIS B 1802-1989 Application Roller Chain Drive
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HOW-TO How to Generate a Sprocket STEP File +
  1. Enter the chain number, number of teeth, sprocket type, and bore diameter
  2. Calculated values update in real time as parameters change
  3. Click "Download STEP File" or "Preview STEP Model"
  4. If you selected "Download STEP File", the STEP file will be saved automatically
  5. If you selected "Preview STEP Model", check the 3D model, then click "Download STEP File" manually
SAMPLE
STATIC · DEFAULT-VALUE MODEL
● SAMPLE IMAGE
VIEW · ISO
#40 · z=12 · bore=14
SPROCKET
DEFAULT PARAMETERS
Sprocket Generator SAMPLE · #40 · z 12
This is a sample image. After generating, view the actual model in 3D preview. 3D Preview →
CALCULATED · SPEC
AUTO-COMPUTED
Dp
49.07mm
Pitch Diameter
Df
41.12mm
Root Diameter
Da
57.02mm
Tip Diameter
Tags
Sprocket Power Transmission
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PARAMETERS
Enter Dimensions
4 REQUIRED

Select standard chain per JIS B 1802-1989

9–40 teeth
teeth

Number of sprocket teeth

Select hub configuration (A: plate, B: one-side hub, C: both-side hub)

0–100 mm
mm

Diameter of the center bore (0 = no bore)

CAUTION

The sprockets generated by this tool are reference implementations based on estimated values from multiple sources.

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ABOUT · STEP

The STEP file (.step / .stp) is a standard 3D CAD format that retains dimensional and topology data. Compatible with major CAD software including Fusion 360, SolidWorks, and FreeCAD.

  • Full-scale solid (mm units)
  • Editable dimensions and post-processing in CAD
  • Convertible with a slicer for 3D printing

Generating 3D model...