A Thing of Beauty
A lot of progress has been made on the Supercharger conversion since my last update. All of the parts have been machined and the main casing has been treated to a lovely coat of Cerakote, my new favourite discovery.
All the parts required to assemble the supercharger drive housing. This picture is taken before Cerakote was applied to the main drive housing.
The remaining parts were machined up by a local engineering company as a favour. Bonus no cost to me. They comprise of;
The bearing, oil seal and woodruff key were all off the shelf items.
I carried out a lot of research when deigning the parts. The fits and tolerances are all within international standards and suitable for the application. For example; the shaft is designed to be a p6 interference fit with the bearing, and the bearing is a H7 slip fit within the main casing.
The bearing is rated to 17,00 RPM and an open casing was chosen to allow lubrication from the engine. For this same reason I designed a small gap around the shaft assembly and the main casing.
The bearing was fitted to the shaft by gently warming up in the inner race whilst cooling the shaft in the freezer for 10 mins. The same method was used to press on the cush coupler onto the end of the shaft.