brake material

brake material

This topic has 6 replies, 5 voices, and was last updated 26 April 2014 at 21:27 by nigel jones 5.

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25 April 2014 at 20:29 #150698
nigel jones 5
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@nigeljones5
Is there any reason not to make my invicta parking breaks from brass – acting on a steel wheel?
Advert

25 April 2014 at 20:29 #7126
nigel jones 5
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@nigeljones5
25 April 2014 at 20:52 #150703
Ian Welford
Participant
@ianwelford58739
could you not use the mini brake pads from Halfords or cycle shops hidden in the brass surface? Saving wear and tare?

You going to Harrogate then ?

Regards Ian
26 April 2014 at 11:28 #150741
Tim Stevens
Participant
@timstevens64731
One problem you might find is that the contact surfaces will not always be dry – they will be contaminated by water or oil. Either way, the friction will all but disappear, and your brakes will fail.

What is wrong with conventional brake lining material, which can be rivetted or bonded to the shoe (or plate, etc)?

Cheers, Tim
26 April 2014 at 14:17 #150750
Roderick Jenkins
Participant
@roderickjenkins93242
Copper alloys tend to be used as bearings with steel because of the low friction between the two metals. In general, dissimilar metals provide low friction and similar metals high friction – so steel might be a good choice for the brake on your steel wheel. This sort of situation wasn't used in full size because you want the brake material to wear at a higher rate than the wheel so that that the pads are easily replaced consumables. My guess is that the original Invicta (1:1 scale) would have had wooden brakes. Tufnol would probably make a reasonable scale alternative.

HTH

Rod
26 April 2014 at 19:26 #150764
Clive Hartland
Participant
@clivehartland94829
Ah, the smell of hot Tufnol. Applied heavily I wonder if they would catch fire? If its for parking I would use the hard bicycle type of brake block, easily shaped and fit into a holder.

Clive
26 April 2014 at 21:27 #150776
nigel jones 5
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@nigeljones5
Thanks all

Ian – Most likely will be going
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