Woodruff key.

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TedAllen
Posts: 324
Joined: Thu Aug 31, 2006 8:34 pm
Your interest in the forum: Jowett now owned over 40 yrs
Given Name: ted
Location: Manchester. The Rainy City

Woodruff key.

Post by TedAllen »

Hi, Can anybody help me out with the 'Woodruffe key' that locks the Javelin rear brake drum to the halfshaft please. Mine has dropped out whilst I was sorting out the n/s brake and I can't for the life of me find it.
I can make one if neccesary but an original would be good. Strange thing is, I have a spare drum which may have one in but I can't find that either !
Ted
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Tony Fearn
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Given Name: Anthony
Location: Clayton le Moors, Lancashire, the Premier County in the British Isles!!

Post by Tony Fearn »

Hi Ted,

I would expect someone will send you a key quickly, but anyway -

I noticed some woodruff keys on Ebay, but they were for the Javelin oil pump. Don't know whether they are the same size as you require but the Ebay number is:-

Item number: 230300441431

Regards,

Tony.
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TedAllen
Posts: 324
Joined: Thu Aug 31, 2006 8:34 pm
Your interest in the forum: Jowett now owned over 40 yrs
Given Name: ted
Location: Manchester. The Rainy City

Post by TedAllen »

Thanks for the thought Tony.
The wheel key is about 10 times the size of the oil pump one.
Dimensions are Square steel bar 6.5mm X 6.5mm X 25mm.
B&Q do a similar steel bar but it is 7mm square so the options there for a bit of vigorous filing !
Ted
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Tony Fearn
Posts: 1743
Joined: Thu Feb 09, 2006 5:33 pm
Your interest in the forum: Early pre-wars. Owner of 1933 'Flying Fox' 'Sarah Jane, and 1934 Short saloon 'Mary Ellen'.
Given Name: Anthony
Location: Clayton le Moors, Lancashire, the Premier County in the British Isles!!

Post by Tony Fearn »

Hello again Ted.

Thought as much, but it was interesting to see that they were made from, and I copy the quote -

made from key-steel BS 970: 080M30 .

How does the B & Q steel match up to these specs, and does it matter?

Tony.
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Forumadmin
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Post by Forumadmin »

Yes it matters. The key can take a large shear particularly if the taper has grease on it or is not tight. Remember remove all oil from taper and bore before fitting.
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Tim Neville
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Post by Tim Neville »

Yes, you most certainly do want to use the right steel. I note the oil pump keys mentioned are made from BS970 080M30. I would have thought that for a highly stressed key such as for the rear hub 080M40 would be more suitable, as per the tables from www.roymech.co.uk (a very useful resource).
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TedAllen
Posts: 324
Joined: Thu Aug 31, 2006 8:34 pm
Your interest in the forum: Jowett now owned over 40 yrs
Given Name: ted
Location: Manchester. The Rainy City

Post by TedAllen »

Just a public note of thanks to Len Johnson who rang me to say he had a spare and it arrived in the next post. Thanks Len....thats what it's all about. :D
Ted
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