The manual doesn't give the angle. A quick review suggests that they had 3 series of angular-contact bearings: the 0L00 series, which are described as "extra light"; the 20,000 series (which is what the leadscrew shaft uses) are described as "designed to resist heavy combined radial and thrust loads"; and the 30,000 series, described as "designed for very heavy, single direction thrust loads and when so used with the loads not subject to reversal of direction". Eyeballing the diagrams in the manual: the 0L00 series angle is about 15 degrees, the 20,000 series about 25 degrees and the 30,000 about 35 degrees.Cal, do you know what angle the bearings are ? I would guess lower rather than higher but that is a complete guess. Dave
If you get chance, a sketch & some pictures might help others here faced with the same dilemma.Guys, I'm going to machine hubs, that I will press new angular contact bearings in to. My question is, what material do you suggest I make the hubs out of? Think just some 4140 would be fine?
Yep, I'll take pictures and upload when I'm done.....If you get chance, a sketch & some pictures might help others here faced with the same dilemma.
FYI:A quick search on eBay turns up Delco H20303, QH20303 and UH20303 bearings. (New Departure was a division of General motors, as is Delco.) I have no idea what the H, QH and UH prefixes mean (the seller might know). One listing shows a picture of an H20303 bearing and it doesn't have a flange. Someone on this forum ground a snap-ring groove in a bearing, but I doubt it was for this application. Modifing a bearing to use a snap ring and modifying the counterbore in the casting, if necessary, is an option if all else fails.
Thanks MartinI think all the 10EE folks must be Christmas shopping!
On the CVA they are socket head cap screws. Monarch probably the same.
The casting has been spot-faced but it's not a deep counterbore. So it looks just like yours in this respect.
View attachment 380954