By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Jan 24th

Dunlop Taper Bushes

All Topics | Latest Posts

Search for:  in Thread Title in  
Stephen Osborne20/01/2020 10:52:04
20 forum posts
1 photos

I am looking to fix a home machined pulley to a motor shaft using a Dunlop taper bush.

It is possible to purchase a bolt-on hub (female) to afix to the pulley which will mate with the bush (male) perfectly.

However, the dimensions of the hub are too large for my pulley – I think they are meant to be used on a fan etc.

Does anyone have experience of this machining task? I am happy with measuring and reproducing the exact taper but the location of the half-holes seems more problematical.

Any thoughts would be appreciated.img_1460.jpg

Michael Gilligan20/01/2020 11:09:26
avatar
14783 forum posts
635 photos

It might be simplest to adapt a commercial sprocket : **LINK**

https://uk.rs-online.com/web/c/pneumatics-hydraulics-power-transmission/power-transmission-sprockets/sprockets/?searchTerm=taper%20bush%20hub

MichaelG.

David Jupp20/01/2020 11:28:18
713 forum posts
17 photos

Fenner produce adaptors beyond the bolt on style for Taper Lock Bushes, their 'hub adaptors' may be worth a look.

Ian Parkin20/01/2020 11:56:53
avatar
704 forum posts
181 photos

My supplier calls them weld on hubs

Brian Wood20/01/2020 12:56:53
2072 forum posts
37 photos

Hello Stephen,

They also are known as taper lock hub bushes. Google for suppliers and the many various sizes available, they are not expensive..

A point to be aware of is that the two holes that accept the clamping grub screws are NOT across a diameter, they are displaced at 5 degrees below centre on either side to enhance the collapsing action of the bore onto the motor shaft. The hub cone angle is 8 degrees

Regards

Brian.

David Jupp20/01/2020 13:35:56
713 forum posts
17 photos
Posted by Ian Parkin on 20/01/2020 11:56:53:

My supplier calls them weld on hubs

That is yet another type.  The 'hub adaptor' is a split bushing (with or without a keyway) and sits in a cylindrical hole.

Edited By David Jupp on 20/01/2020 13:53:54

Paul Lousick20/01/2020 15:16:23
1286 forum posts
512 photos

Also lots available on ebay. Do a search for taper lock

Paul

HOWARDT20/01/2020 15:29:48
490 forum posts
14 photos

I do have a drawing showing all dimensions somewhere. Remember there are two holes to hold the taper lock in and the threaded to act as an extractor. Will dig out drawings and get back unless someone beats me to it.

Tim Stevens20/01/2020 17:27:59
avatar
1123 forum posts

You might get more sense in terms of what the dimensions are, and what fits what, etc by going to a 'bearing supplier' (at least, in the UK). I have had good service from Bearing Boys, and Simply Bearings, and yes, they do pulleys and belts, and all sorts of useful stuff, not just bearings.

Cheers, Tim

Michael Gilligan20/01/2020 18:02:27
avatar
14783 forum posts
635 photos
Posted by Tim Stevens on 20/01/2020 17:27:59:

You might get more sense in terms of what the dimensions are, and what fits what, etc by going to a 'bearing supplier' (at least, in the UK). [...]

.

... and also by downloading this: **LINK**

http://www.dunlopbtl.com/downloads/Dunlop%20BTL%20-%20Taper%20Bushes.pdf

MichaelG.

Clive Foster20/01/2020 18:07:12
1992 forum posts
73 photos

Agree with Tim about going to "bearing suppliers". I got some bolt on ones from Engineers Mate some years ago which were fine. They still list such things, not cheap tho'. **LINK**

Clive

Michael Gilligan20/01/2020 18:17:10
avatar
14783 forum posts
635 photos

surprise

That makes the Sprockets from RS look very reasonably priced for Stephen's job

MichaelG.

HOWARDT21/01/2020 13:43:39
490 forum posts
14 photos

TaperLock dimensions

Found my dimension sheet for bores to accept taper lock bushes, rather than post found the same on the above link.

Howard

Michael Gilligan21/01/2020 14:11:47
avatar
14783 forum posts
635 photos

Useful reference document, Howard ... Thanks

MichaelG.

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Latest Forum Posts
Support Our Partners
cowells
Ausee.com.au
ChesterUK
Warco
Eccentric July 5 2018
emcomachinetools
Allendale Electronics
Eccentric Engineering
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest