Bryn Heinemann

All projects

Two-Stage Gearbox Design

Class project, ME 329 Mechanical Systems Design. SolidWorks.

The brief was to transmit motor power to a driven sprocket at a set reduction, using off-the-shelf bearings. I sized both gear stages against bending and surface-durability criteria and designed both shafts for static yield and fatigue at each stress concentration. I modeled the complete gear train in SolidWorks (gears, shafts, bearings, motor, and sprocket) to verify fits and assembly order, and drew both shafts for manufacturing.

ToolsSolidWorks, Gear sizing, Shaft fatigue design, Bearing selection

Shaft 1 drawing: two keyseats, toleranced diameters, and a runout callout to datum A.
Shaft 1 drawing: two keyseats, toleranced diameters, and a runout callout to datum A.

Shaft drawings

Shaft 2 drawing: shoulders, keyseats, and bearing seats dimensioned and toleranced.
Shaft 2 drawing: shoulders, keyseats, and bearing seats dimensioned and toleranced.

Gear train model

Gear train assembly in SolidWorks.
Gear train assembly in SolidWorks.