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koates · 10-02-2020, 02:10 AM

The front bearing on all Ford V8 generators is part number 10094, but they are not all the same type of bearing. The difference is in the prefix of the part number which could be B or 18 or 79 or some other depending on model or year. 18-10094 is the double tapered roller bearing which was used from 1932 to 1938-39. Later bearings are single row ball bearings and some generators used two of these and some only one single bearing but all numbered 10094 but with different prefix. Some people say that the single ball bearing is OK with the metal fan mounted on the pulley and it has lasted a long time. But why was the original fan mounted pulley on early V8s fitted with a double tapered roller set up do you think ? End thrust by the fan pulling on the generator armature is the reason for the tapered roller bearings. The normal ball bearing was not designed to handle this thrust even though they can work. So people ask for advice on this question and then when you (me) gives this advice they then just do the opposite and wont use the double tapered bearings because they now cost too much. Tread your own path. Regards, Kevin.

10-02-2020, 02:10 AM	#2
koates Senior Member Join Date: May 2010 Location: Melbourne Australia. Posts: 2,079	Re: 2 brush generators with a fan The front bearing on all Ford V8 generators is part number 10094, but they are not all the same type of bearing. The difference is in the prefix of the part number which could be B or 18 or 79 or some other depending on model or year. 18-10094 is the double tapered roller bearing which was used from 1932 to 1938-39. Later bearings are single row ball bearings and some generators used two of these and some only one single bearing but all numbered 10094 but with different prefix. Some people say that the single ball bearing is OK with the metal fan mounted on the pulley and it has lasted a long time. But why was the original fan mounted pulley on early V8s fitted with a double tapered roller set up do you think ? End thrust by the fan pulling on the generator armature is the reason for the tapered roller bearings. The normal ball bearing was not designed to handle this thrust even though they can work. So people ask for advice on this question and then when you (me) gives this advice they then just do the opposite and wont use the double tapered bearings because they now cost too much. Tread your own path. Regards, Kevin.