Quote:
Originally Posted by Charles Brock
What is the difference between a 78-10130 and a 81A-10130 Generator Pulley? Thanks
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Charles, I have samples of both of those pulleys. The only two areas that I can see that are different are the cooling fins are a bit higher and longer on the 78-10130, and the shaft mounting ID is positioned a little deeper in the front and higher in the back on 78-10130. This may be because the configuration of the armature shafts were different where these fans mounted and/or possibly the mounting hardware was different for each pulley on the armature shaft. Hopefully the attached pictures will better show what I am trying to describe. The 78 pulley is on the left and the 81 is on the right in all of these pictures.