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Setting up gears: clicking when running a pattern?

FleshEater

FleshEater

Ordinary Average Guy
Joined
May 21, 2020
Member Number
832
Messages
3,633
Loc
Pennsylvania
I’m having a difficult time with this gear set now, and I don’t know why. I just had it set up and had to tear it down to clearance the carrier. Now it’s giving me issues.

When I run a pattern with my drill on slow, it’s clicking. High speed it sounds fine. Also, after running a pattern, my backlash is loosening on me. I set it within spec and then after the pattern is checking at 25-30. Also noticed the paint is wearing off the end of the ring gear.

I’m about to say screw it and run it.

*NOTE these are used gears!

Pattern:

IMG_1510.jpeg


IMG_1511.jpeg
 
Bebop said:
Looks to me that your pinion is wayyyyyy too deep
Click to expand...

I figured this out. The pinion bearing is toast from welding on the 3rd member. It’s wobbling when I spin it, which is pushing it into the ring gear.

I could not figure out how my backlash would come loose, but then would tighten up as I rocked it back and forth. Now I know.
 
FleshEater said:
I figured this out. The pinion bearing is toast from welding on the 3rd member. It’s wobbling when I spin it, which is pushing it into the ring gear.

I could not figure out how my backlash would come loose, but then would tighten up as I rocked it back and forth. Now I know.
Click to expand...
That would do it.

Checking backlash and pattern in 3 different spots on the ring gear is a must for rulling out of spec parts or weird issues like that.
 
FleshEater said:
I figured this out. The pinion bearing is toast from welding on the 3rd member. It’s wobbling when I spin it, which is pushing it into the ring gear.

I could not figure out how my backlash would come loose, but then would tighten up as I rocked it back and forth. Now I know.
Click to expand...
Crisis averted. :laughing:
 
FleshEater said:
I figured this out. The pinion bearing is toast from welding on the 3rd member. It’s wobbling when I spin it, which is pushing it into the ring gear.

I could not figure out how my backlash would come loose, but then would tighten up as I rocked it back and forth. Now I know.
Click to expand...
Did you arc across the bearing, or just overheat it?
 
Does anyone use setup bearings?

Back in the day I made all kinds of brand new setup bearings. D44, D60, etc. I would take new bearings and would use a die grinder to remove the inner or outer material so the bearings would fit without needing to be pressed. This way I could easily get a good pattern without damaging the bearings that I would actually run. Unfortunately a buddy was borrowing them and his placed burned.
 
blakes said:
Does anyone use setup bearings?

Back in the day I made all kinds of brand new setup bearings. D44, D60, etc. I would take new bearings and would use a die grinder to remove the inner or outer material so the bearings would fit without needing to be pressed. This way I could easily get a good pattern without damaging the bearings that I would actually run. Unfortunately a buddy was borrowing them and his placed burned.
Click to expand...
I use a flex hone to try and keep the id round. If your using a diegrinder i guarantee it isn't round, but it likely works out just fine.
 
bunk said:
I use a flex hone to try and keep the id round. If your using a diegrinder i guarantee it isn't round, but it likely works out just fine.
Click to expand...
I bet your right. I never had a problem even setting up 5.13's on the D70 in my dually which hauls a lot of weight.

But I lost all my setup bearings and a box full of related stuff I made over the years for pressing various things in the wildfire.
 
blakes said:
I bet your right. I never had a problem even setting up 5.13's on the D70 in my dually which hauls a lot of weight.

But I lost all my setup bearings and a box full of related stuff I made over the years for pressing various things in the wildfire.
Click to expand...
Honing a set up bearing will always be cheaper than paying someone to set up your gears.
 
bunk said:
I always turned mine by hand for a pattern.
Click to expand...
I used to do it by hand only. Now a also use a 1/2" cut off extention in my drill. I run the drill (not an impact!) on low speed and push my palm on the outside of the ring gear to create some resistance and load when checking the pattern. Not sure if it really helps of not?
 
RustyC said:
I used to do it by hand only. Now a also use a 1/2" cut off extention in my drill. I run the drill (not an impact!) on low speed and push my palm on the outside of the ring gear to create some resistance and load when checking the pattern. Not sure if it really helps of not?
Click to expand...

It leaves a nicer pattern in my opinion.
 
RustyC said:
I used to do it by hand only. Now a also use a 1/2" cut off extention in my drill. I run the drill (not an impact!) on low speed and push my palm on the outside of the ring gear to create some resistance and load when checking the pattern. Not sure if it really helps of not?
Click to expand...
I learned the palm on the ring/carrier lesson early on, another one was making a fixture to hold the pinion rigid when checking backlash.
 
blakes said:
Does anyone use setup bearings?

Back in the day I made all kinds of brand new setup bearings. D44, D60, etc. I would take new bearings and would use a die grinder to remove the inner or outer material so the bearings would fit without needing to be pressed. This way I could easily get a good pattern without damaging the bearings that I would actually run. Unfortunately a buddy was borrowing them and his placed burned.
Click to expand...
I do. I have D44 and D60 setup bearings honed out for doing gear setup. And I believe I have a Toyota big pinion bearing honed for doing toy thirds.
 
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