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Burrell Bearings. Finally Something Different

 Burrell Bearings. Finally Something Different..


This month as by way for a change from some of the other long term parts, I have made a start on the bearing material. This was a slab of cast Bronze from the foundry, and I have started the preliminary squaring up and cutting in half, to make 2 smaller manageable but identical pieces. 

Following a study of the drawings, it also has meant the bearing housings have needed additional machining, as they were oversize for the bearings to fit.



Essentially some small corrections are expected, and making parts fit each other correctly is a double check on the drawing accuracy as I'm going along. When both the housings are complete to a width of 1 inch internal size then the bearing shell work can continue.

In other thinking - (and this is an odd side topic) - My Machines.
I have a number of machines, some easier to use, some more accurate and with less run out.  

When rectifying a part, if it could be machined by the Lathe or on a Milling Machine (for example), or  even by hand. The time required to build this engine is considerable, thought should be considered if the right approach is made. Parts can quickly be setup on a lathe, as compared to the more timely setup required for clamping work on the Mill especially if a small holding Jig was initially made.

Essentially I'm talking about parts production speed, machine running costs, risk if part becomes damaged or undersize and machining marks or finishing std when machining the castings.

In future I may pay more attention to this idea, up till now I have been following some of the photos from another web site:-

 http://www.laughing-dog.co.uk/model_eng.htm

However by now I have made a good attempt on most of the part to reach the same stage as this fellow builder has, and so there are no more machine setup ideas I can gain from this site. It also appears as if something has happened to this builder, as no more updates have been made since the end of 2011!

But if your just starting like I was, this site is a must!

Also downloading as many photo's as possible is also a good resource, and for that I use the album's on Traction Talk as there are a number of these for this particular engine.

 Until next month stay safe; make swarf; have fun!
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