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The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
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 Post subject: woodruff key
PostPosted: Tue Oct 29, 2019 8:05 pm 
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Location: Harrow Middlesex
Hi been looking on ebay they sell woodruff keys,but what size do i need for a sprint rear hub,stud size 7/16

Thanks Dave


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 Post subject: Re: woodruff key
PostPosted: Wed Oct 30, 2019 7:48 am 
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Joined: Sat Oct 07, 2006 8:23 pm
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Location: East Staffordshire
I thought they were 1/4 inch ..

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Mike

1980 Vermillion Sprint - 174bhp


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 Post subject: Re: woodruff key
PostPosted: Wed Oct 30, 2019 10:06 am 
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Sprint part no. is 110621 pretty sure it is 1/4". Doing a bit of digging seems to be equivalent to 134591 as used on TR2/3/4/4A , but please double check before parting with any hard earned! This available from some brothers in Lincolnshire:

https://rimmerbros.com/Item--i-134591

Can you measure the width of the slot and the depth and also the depth in the hub to give you the size? You could then speak nicely to the Lincolnshire people and get the size checked before ordering.

As far as I know keys are not hardened, they seem to deform quite easily when trying to get them out of shafts when they are rusted in!

On a pedantic note, pretty sure that technically Woodruff Keys are the semi circular ones, and this is just a straight key, though most people do refer to them as Woodruff Keys. Only mention it as I do have a selection box of "proper" Woodruff keys and was about to go measuring up when I looked into it more closely :)

Hope that helps

Roger

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1975 Sprint Man O/D in Honeysuckle Yellow
1971 Stag Auto White

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 Post subject: Re: woodruff key
PostPosted: Wed Oct 30, 2019 8:06 pm 
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Joined: Mon Dec 12, 2016 9:53 pm
Posts: 1699
Location: Harrow Middlesex
Quote:
Sprint part no. is 110621 pretty sure it is 1/4". Doing a bit of digging seems to be equivalent to 134591 as used on TR2/3/4/4A , but please double check before parting with any hard earned! This available from some brothers in Lincolnshire:

https://rimmerbros.com/Item--i-134591

Can you measure the width of the slot and the depth and also the depth in the hub to give you the size? You could then speak nicely to the Lincolnshire people and get the size checked before ordering.

As far as I know keys are not hardened, they seem to deform quite easily when trying to get them out of shafts when they are rusted in!

On a pedantic note, pretty sure that technically Woodruff Keys are the semi circular ones, and this is just a straight key, though most people do refer to them as Woodruff Keys. Only mention it as I do have a selection box of "proper" Woodruff keys and was about to go measuring up when I looked into it more closely :)

Hope that helps

Roger
Roger

Didn"t know about Woodruff keys only for the semi circular one,and thanks for the size

Dave


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 Post subject: Re: woodruff key
PostPosted: Wed Oct 30, 2019 8:07 pm 
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Joined: Mon Dec 12, 2016 9:53 pm
Posts: 1699
Location: Harrow Middlesex
Quote:
I thought they were 1/4 inch ..
Thanks Mike


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 Post subject: Re: woodruff key
PostPosted: Sat Nov 02, 2019 8:59 pm 
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Joined: Mon Dec 12, 2016 9:53 pm
Posts: 1699
Location: Harrow Middlesex
Good news found the lost woodruff key :D


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