Belt-Driven Pulley Assembly

2020Illustrative archive dateMechanical design study

Archive date pending confirmation. This public example was created for the portfolio in 2026.

Project Overview

Objective

Create a clear mechanical layout for a belt drive while documenting the parameters needed for a later belt and duty selection.

Role & Responsibilities

Independent portfolio study focused on geometry, documented inputs, and engineering review.

Define the nominal pulley diameters and shaft spacing.
Construct grooved pulley geometry and show the belt route.
Review mounting access, alignment, and the required guarding envelope.

Engineering Features

Nominal pulley diameters: 40 / 80 mm
Nominal centre distance: 100 mm
Drive type: Open belt layout
Duty / belt selection: Not specified

Tools & Software

Power transmissionPulley layoutParametric CAD

Outcome

Power-transmission layout and interface review.

A documented portfolio demonstration. Manufactured or externally validated performance is not claimed.

3D Model

Drag to rotate. Use the viewer controls to inspect the assembly from another angle.

Loading engineering geometry…

PERSPECTIVE / GEOMETRYOpen belt drive

PULLEYS Ø40 / Ø80 · CENTRES 100 mm

Loading engineering viewer…

Drawings

Front, side, top, and isometric views of the portfolio geometry. Select the sheet to view it in detail.

**Assembly drawing**Orthographic geometry views with nominal study dimensions. Concept drawing, not a manufacturing release.

Parameter	Nominal study input
Nominal pulley diameters	40 / 80 mm
Nominal centre distance	100 mm
Drive type	Open belt layout
Duty / belt selection	Not specified

Project Gallery

Rendered views of the CAD demonstration. These images show model geometry, rather than photographs of fabricated components.

**Isometric assembly**CAD geometry rendered from the portfolio model.

**Front view**A second view of the same model geometry.

**Alternative model view**A further geometric view of the portfolio demonstration.

Source & Engineering Notes

Model Assumptions

Representative pulley diameters 40 and 80 mm, nominal centre distance 100 mm. The belt path is a geometric illustration; no belt section, pretension, slip, or service rating is specified.

Design Workflow

Define the nominal pulley diameters and shaft spacing.
Construct grooved pulley geometry and show the belt route.
Review mounting access, alignment, and the required guarding envelope.
Identify the missing power, speed, pretension, and belt-section inputs.
Document the limits of the illustrated speed-ratio relationship.

Engineering Checks

Check shaft alignment and the envelope. A production drive requires a compatible belt/pulley profile, actual pitch diameters, tension, service factor, and guarding design.

Study Limitations

New concept demonstration with an illustrative 2020 archive label. The simple belt illustration is not a selected, rated, or validated transmission.