Taper reaming

Advert

New Replies

Report Bug

Help/FAQs

Taper reaming

This topic has 22 replies, 15 voices, and was last updated 17 August 2021 at 11:51 by John Haine.

Viewing 23 posts - 1 through 23 (of 23 total)

Author

Posts
16 August 2021 at 12:02 #558453
Martin L
Participant
@martinl
Hi,

First post so hello to all.

I have a 3/32" pin I need to change to a tapered pin, not sure what size I need.?.

Will a 7/64" do or do I need to go to 1/8" size for pin and reamer.

Thanks for any info.
Advert

16 August 2021 at 12:02 #10930
Martin L
Participant
@martinl
Taper pin/reamer for 3/32″
16 August 2021 at 13:43 #558469
Emgee
Participant
@emgee
Martin

As you imply the small end of the reamed hole will need to be greater than 3/32" so you need to check a tapered reamer chart sizes for a suitable reamer.

Emgee

Quick search found these, looks like metric has wider choice of sizes.

https://www.ebay.co.uk/itm/HSS-Taper-Pin-Reamer-Metric-Imperial-2mm-2-5mm-3mm-3-5mm-4mm-4-5mm-5mm-1-8-1-4-/264938005021?var=0&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338268676&toolid=10044&customid=CjwKCAjwmeiIBhA6EiwA-uaeFZ56PLdzljjnlfYGFrtjwwB0l7C0nyPfSgOyuVj_fn1OZxtamzii7RoCJDoQAvD_BwE

Edited By Emgee on 16/08/2021 13:59:11
16 August 2021 at 14:00 #558477
not done it yet
Participant
@notdoneityet
The taper is probably more important than the actual size (as long as greater than the current hole). A tapered pin with a 2.5 mm minimum could suffice. Different taper to imperial, mind. The wide end of the tapered pin (so the overall length of it) needs to be catered for.
16 August 2021 at 14:20 #558480
Phil H1
Participant
@philh196021
Misread your post

Edited By Phil H1 on 16/08/2021 14:23:32
16 August 2021 at 15:13 #558493
Martin L
Participant
@martinl
Thanks for the info/help

Changing the 3/32" pin's that hold the crank on the shaft of a Stuart twin Victoria , just so they are a lot easier to remove.

Looks like 1/8" pin and reamer will be the one to go with, taper pin needs to cover 3/4" depth, going with a 1" pin OK?
16 August 2021 at 15:29 #558494
Grindstone Cowboy
Participant
@grindstonecowboy
Just to digress..

I've never used a tapered reamer, so is the correct procedure to assemble the parts and then ream the hole in both at the same time? I'm assuming it must be, but never been told this or seen it written anywhere.

Thanks,

Rob
16 August 2021 at 15:37 #558496
Martin L
Participant
@martinl
I'm the same never used a taper reamer before, so I'd like to know as well Rob. I'll be going through cast/steel/cast, think I'll have a trial run on steel first
16 August 2021 at 15:42 #558497
roy entwistle
Participant
@royentwistle24699
Ream both parts assembled together. If more than one pin is needed on one shaft they should both be reamed from the same side.
16 August 2021 at 16:22 #558500
Grindstone Cowboy
Participant
@grindstonecowboy
Thanks Roy
16 August 2021 at 17:24 #558508
Martin L
Participant
@martinl
Posted by roy entwistle on 16/08/2021 15:42:14:

Ream both parts assembled together. If more than one pin is needed on one shaft they should both be reamed from the same side.

Thanks for this.
16 August 2021 at 20:18 #558524
not done it yet
Participant
@notdoneityet
When I’ve fitted mine it has been after loctiting parts together. Choice of loctite grade is up to me. If it is intended to be permanent, a stronger grade is chosen.

I value my reamers so tend to step drill to reduce the metal that needs to be cut away with the reamer. But I’ve yet to pin anything under an inch diameter…
16 August 2021 at 20:33 #558526
Nick Hughes
Participant
@nickhughes97026
Here you go:-
16 August 2021 at 21:46 #558533
Martin L
Participant
@martinl
Great info thanks, love those old vids always clear concise information.

Really looking forward to trying this now.
16 August 2021 at 23:02 #558540
Grindstone Cowboy
Participant
@grindstonecowboy
+1 on what Martin said.

Thanks

Rob
17 August 2021 at 05:01 #558548
Jon Lawes
Participant
@jonlawes51698
Funnily enough, all these years I've just realised I've never used a taper reamer either, but will almost certainly need to soon. Thank you.
17 August 2021 at 09:04 #558563
Nigel McBurney 1
Participant
@nigelmcburney1
Be careful when reaming with a tapered reamer,the flutes quickly fill with swarf so withdraw the reamer to clear the swarf more frequently than when using parallel reamers. use a lubricant when reaming,sluble oil,lubricating oil,or in tough materials Rocol helps,
17 August 2021 at 09:36 #558567
michael howarth 1
Participant
@michaelhowarth1
What a superb video as posted by Nick. No excess verbiage or ego that accompanies modern offerings.

Mick
17 August 2021 at 09:58 #558572
Ady1
Participant
@ady1
Posted by mick H on 17/08/2021 09:36:39:

What a superb video as posted by Nick. No excess verbiage or ego that accompanies modern offerings.

Mick

I noticed that modern vids can be hugely verbose and they ALL do it, especially the USA vids

I think that the longer your page is viewed- the more advertising there is- and the more income you make

So there's tons of useless fluff and a snippet of useful at the end
17 August 2021 at 10:22 #558579
Michael Gilligan
Participant
@michaelgilligan61133
Posted by Ady1 on 17/08/2021 09:58:37:

Posted by mick H on 17/08/2021 09:36:39:

What a superb video as posted by Nick. No excess verbiage or ego that accompanies modern offerings.

Mick

I noticed that modern vids can be hugely verbose and they ALL do it, especially the USA vids

I think that the longer your page is viewed- the more advertising there is- and the more income you make

So there's tons of useless fluff and a snippet of useful at the end

.

I’m sure you are right, Ady

But also note that this film would have been an expensive production compared with the typical video ‘tutorial’

MichaelG.
17 August 2021 at 10:31 #558585
Circlip
Participant
@circlip
"I noticed that modern vids can be hugely verbose and they ALL do it, especially the USA vids"

MANY generated on this side of the pond can challenge that.

Regards Ian.
17 August 2021 at 11:45 #558597
Bill Dawes
Participant
@billdawes
Yes excellent video, concise and precise.

Agree about many modern equivalents, not all to be fair, amateur ones usually more to the point. USA ones can be awful, many I have watched have been like a QVC programme, waffling on a and on about the same thing ad nauseum. Guess it is to do with sponsorship.

I hasten to add I don't spend hours watching people selling tacky jewellery on QVC, honest.

Bill D.
17 August 2021 at 11:51 #558600
John Haine
Participant
@johnhaine32865
Ah well, shoorting video is free, you had to pay for film!
Author

Posts