Final Drive 3.9375 for British Leyland transverse gearbox, helical
grabcad
Designing helical gears in FreeCAD is challenging since there isn't a specific function for them, hence customization is required. The distance between teeth must be small enough not to disrupt the line of another tooth. With a helix angle of 30°, a pinion with 16 teeth and a crownwheel with 63 teeth, the gear ratio is 3.9375. This ratio was used in Austin Allegro and is suitable for transverse gearboxes within the A-Series engine range. Thankfully, someone (Looo) has developed a Macro (FCGear) that simplifies helical gear design in FreeCAD.
With this file you will be able to print Final Drive 3.9375 for British Leyland transverse gearbox, helical with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Final Drive 3.9375 for British Leyland transverse gearbox, helical.