Help with pinion install

[d12bn]

Just received my brushless setup and the motor shaft looks long. How do I get the pinion on past the end of the shaft so it lines up with main gear and how far do I push it on?

Thanks

[Micro-Maniac]

I take it you have a press-fit pinion.

I'd set it nice and squared in a vice and press it on until it's flush to the end of the shaft then drill a hole in a piece of wood to press it the rest of the way.

It's important that you press it squarely straight on because it's easy to bend the shaft if the motor/shaft and pinion are not squared to each other in the vice. Using a sloppy vice is not recommended.

[Incarus]

Use a spare bearing placed over pinion and sqeeze n a vise

[Spunjah413]

If you are using a press fit, be VERY careful as those c05M 1mm shafts can be fragile.

I highly recommend a slip-fit pinion from Dylan along with some Loctite 609. No worry about shaft bending, and easily flying 5min after pinion install.

http://astroid-designs.myshopify.com...ent-1mm-shafts

http://astroid-designs.myshopify.com...ts/loctite-609

[NCcraig]

Here's a little trick I learned that works out well if you don't have a press. I don't and that is how I figured this out. You can take a drill bit that is just a bit smaller then the shaft opening in the pinion. Insert it in the hole in the pinion and then roll the pinion back and forth on a rubber surface like a handle of a set of pliers that is flat while holding the drill bit on either side. It will open the hole up enough to be able to slide the pinion on and not make the hole out of round. Take your time and do it little by little because you don't want the hole to get too big. Then just Loctite it like you would any other slip pinion.

[Error401]

Originally Posted by NCcraig

Here's a little trick I learned that works out well if you don't have a press. I don't and that is how I figured this out. You can take a drill bit that is just a bit smaller then the shaft opening in the pinion. Insert it in the hole in the pinion and then roll the pinion back and forth on a rubber surface like a handle of a set of pliers that is flat while holding the drill bit on either side. It will open the hole up enough to be able to slide the pinion on and not make the hole out of round. Take your time and do it little by little because you don't want the hole to get too big. Then just Loctite it like you would any other slip pinion.

Probably a #60 wire drill. Found a chart of sizes here. 1mm = .0394" #60 is .0400"

3/64" looks a tad large, 1/32 too small. Somewhere I have a cleaning tool for my cutting torch that has a bunch of wire files. I'll try to find it here in a sec and see if it has the right sizes for 1mm and 1.5mm shafts.

Found mine, and it does have the right sizes.
http://www.amazon.com/WYPO-Standard-...2376564&sr=8-9

Might be helpful for cleaning the pinion hole for reinstall also.

Thanks for your tip too Craig.

[koko76]

Originally Posted by Error401

Probably a #60 wire drill. Found a chart of sizes here. 1mm = .0394" #60 is .0400"

3/64" looks a tad large, 1/32 too small. Somewhere I have a cleaning tool for my cutting torch that has a bunch of wire files. I'll try to find it here in a sec and see if it has the right sizes for 1mm and 1.5mm shafts.

Found mine, and it does have the right sizes.
http://www.amazon.com/WYPO-Standard-...2376564&sr=8-9

Might be helpful for cleaning the pinion hole for reinstall also.

Thanks for your tip too Craig.

You want a ream to cut that little, http://www.mcmaster.com/#reamers/=grkwjl many here, plenty of other places too. They have a #60 as well as a 1mm. For that small a hole these can be spun pretty easily in a pin vise.

[Error401]

Not disagreeing a bit, but $14 for a tool that may be used a couple times is, well, extravagant. Precise, but... OP said he had in hand a press fit pinion and asked how to make it work. If it were me, I'd do the best I could with a cost effective tool to fill in the time till a pinion from Dylan came in. BTW, I booked that page, thanks.

[koko76]

Originally Posted by Error401

Not disagreeing a bit, but $14 for a tool that may be used a couple times is, well, extravagant. Precise, but... OP said he had in hand a press fit pinion and asked how to make it work. If it were me, I'd do the best I could with a cost effective tool to fill in the time till a pinion from Dylan came in. BTW, I booked that page, thanks.

Sure, and after you've spent hours tearing out your hair trying to find the source of the the vibes from a pinion you hacked up with a file, you think the $14 is cheap money. Not everyone knows the right tool for the job, which this is. Sometimes that costs money.

[Error401]

Like 7 of these:
http://astroid-designs.myshopify.com...ent-1mm-shafts

I'd say yes, get a ream, if you're going to mod a boatload of pinions. But if not, do a quick fix while you wait for the right part to come in.