Search found 596 matches

by whateg0
Sat Jul 13, 2019 6:53 pm
Forum: General Discussion
Topic: Needing a gear
Replies: 13
Views: 440

Re: Needing a gear

I must be really bad at searching. I spent a little time searching there and didn't see that. I think I was too focused on searching for one thing or something. I dunno. I already ordered from McMaster. I'll get a foot of gear stock and can turn the ends down to fit. I need to look up the spacing no...
by whateg0
Fri Jul 12, 2019 9:09 pm
Forum: General Discussion
Topic: Needing a gear
Replies: 13
Views: 440

Re: Needing a gear

Good grief!!! I went back to McMaster and was just looking for a 12T gear and found "Gear stock". I had searched for pinion wire before, but didn't search for just gears.

Thanks for the suggestions - and patience...

Dave
by whateg0
Fri Jul 12, 2019 8:58 pm
Forum: General Discussion
Topic: Needing a gear
Replies: 13
Views: 440

Re: Needing a gear

BigDumbDinosaur wrote:
Fri Jul 12, 2019 8:48 pm
Looks like 20° PA teeth to me. In machinery, 20° is more common than 14½°, as smoothness of conjugal action is of secondary importance to resistance to shock loads.
Makes sense considering the application is high torque.

Dave
by whateg0
Fri Jul 12, 2019 8:33 pm
Forum: General Discussion
Topic: Needing a gear
Replies: 13
Views: 440

Re: Needing a gear

I'm sorry about the bad picture. I was trying to get something posted before I went to bed. Here's a couple better pics. I did start out looking for pinion wire, but wasn't finding what I needed. I just looked again and found brass 24DP, 14.5PA, 15T, in brass, so maybe it does exist somewhere. 20190...
by whateg0
Fri Jul 12, 2019 4:37 pm
Forum: General Discussion
Topic: Needing a gear
Replies: 13
Views: 440

Re: Needing a gear

I'll check the gear cored tube thing out. I could shove that into the big gear and put a shaft through it all.

Dave
by whateg0
Fri Jul 12, 2019 4:36 pm
Forum: General Discussion
Topic: Needing a gear
Replies: 13
Views: 440

Re: Needing a gear

The "shaft" at the ends are part of the smaller gear, which is all pressed into the bigger gear. There's no shaft going through them. The small gear is the shaft. I did consider making a shaft to press into the bigger gear as the existing small gear does now, then somehow drill/bore a section of the...
by whateg0
Fri Jul 12, 2019 2:01 pm
Forum: General Discussion
Topic: Needing a gear
Replies: 13
Views: 440

Re: Needing a gear

Oh, this gear is steel. I'm not sure if brass would hold up or not. I haven't tried to see how hard it is.

Dave
by whateg0
Fri Jul 12, 2019 2:00 pm
Forum: General Discussion
Topic: Needing a gear
Replies: 13
Views: 440

Needing a gear

I was chosen to take a look at my aunt's White Mountain ice cream maker. It' pretty old, and after taking the gearbox apart, I found quite a bit of wear. But they are expensive, so some fixing can be done. I'll bush the hole where one of the gears spins. The hole is worn and the gear is worn down to...
by whateg0
Tue Jul 02, 2019 9:26 am
Forum: General Discussion
Topic: Reaming Cast Steel Fittings without a Mill
Replies: 27
Views: 1392

Re: Reaming Cast Steel Fittings without a Mill

First, OP got it figured out. Second, my take was that a reamer was being considered only because the other attempts had failed to that point. Third, I know no tolerances were listed, nor end use, but I doubt extensive fixturing is needed for such a crude item. I didn't get the impression that this ...
by whateg0
Tue Jul 02, 2019 9:22 am
Forum: Lathes
Topic: Wacking the Morse taper out of the spindle
Replies: 12
Views: 1768

Re: Wacking the Morse taper out of the spindle

If such a low force blow substantially damaged spindle bearings, there would be a lot of milling machines with R8 spindles with bad bearings. Even R8, which is not a self-locking taper doesn't generally release without a sharp rap from a hammer. I would think that the type of bearings would play a p...
by whateg0
Fri Jun 28, 2019 4:16 pm
Forum: General Discussion
Topic: Reaming Cast Steel Fittings without a Mill
Replies: 27
Views: 1392

Re: Reaming Cast Steel Fittings without a Mill

...I need to enlarge the fitting's 29.2mm openings to 30mm (I have a LOT of these to do). I presumed removing this smidgen of material would be a breeze. Yet no HSS bit I've used (shown below in order of attempt) can cut the steel effectively under a deluge of cutting oil. ... How many is "a lot"? ...
by whateg0
Fri Jun 28, 2019 4:13 pm
Forum: General Discussion
Topic: Reaming Cast Steel Fittings without a Mill
Replies: 27
Views: 1392

Re: Reaming Cast Steel Fittings without a Mill

I'm not sure how you would use a holesaw or an annular cutter on something with an existing hole like that. What do you use for a pilot? In my shop, I would probably use the lathe, but that's not necessarily the fastest setup. What rpm are you running your tools? At almost an inch-and-a-quarter, any...