Ols style steerer tube bearings how to find
Ols style steerer tube bearings how to find
I have an old trek mtb from the 90's.
I want to get a set of threaded headset bearings for spares.
How do I find these on ebay, I seem to just get the newer threadless ones on my search.
I want to get a set of threaded headset bearings for spares.
How do I find these on ebay, I seem to just get the newer threadless ones on my search.
Re: Ols style steerer tube bearings how to find
What, regular loose bearings? Or these? You'll need to know what size you have.
Re: Ols style steerer tube bearings how to find
There was no standard caged bearing size for that style of headset. Assuming the headset cups are in good order, which is unlikely, you should measure the size of a single ball bearing and fit a new set. Do this by greasing the inside of the cups and fitting the bearings in individually. It’s a fiddly job but can be done.
In my experience any deterioration of the bearings is rapidly matched by deterioration in the cups and a whole new headset is the only solution but you think they are ok then doing what I have described is an inexpensive alternative.
In my experience any deterioration of the bearings is rapidly matched by deterioration in the cups and a whole new headset is the only solution but you think they are ok then doing what I have described is an inexpensive alternative.
The older I get the more I’m inclined to act my shoe size, not my age.
Re: Ols style steerer tube bearings how to find
If the cups show brinnelling by caged balls, they may be OK with new, loose balls; because the balls and dents won't always line up.
Bike fitting D.I.Y. .....http://wheel-easy.org.uk/wp-content/uploads/bike-set-up-2017a.pdf
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
Re: Ols style steerer tube bearings how to find
Brinelling, I've been a machine fitter for a long time and never heard that one.
Well there is signs of rust, not outside but inside the cups so I assume the 'ole thing is totalled.
The stem is 1" but I dont know any other sizes so I guess I'm going to have to take the thing to bits and measure up, I was hoping not to have to do that.
There are some nice looking adaptors on ebay where you use a cartridge bearing instead of balls on old type threaded headsets, theres nothing wrong with balls except keeping the water out, my ride is an all weather commuter.
Well there is signs of rust, not outside but inside the cups so I assume the 'ole thing is totalled.
The stem is 1" but I dont know any other sizes so I guess I'm going to have to take the thing to bits and measure up, I was hoping not to have to do that.
There are some nice looking adaptors on ebay where you use a cartridge bearing instead of balls on old type threaded headsets, theres nothing wrong with balls except keeping the water out, my ride is an all weather commuter.
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Re: Ols style steerer tube bearings how to find
It's false brinelling really. Caused by small fore-aft rocking movements, displacement of grease, and fretting of metal on metal in the straight ahead position. Road bikes suffer worst. Cartridge headsets are very resistant to it because the cartridges can move in the cups.
MTB headsets tend to die from rust instead.
MTB headsets tend to die from rust instead.
Use "threaded" in your ebay search
this tange looks nice.
are you 1" or 1 1/8" that is the key thing. EDIT: also check the "stack height" matches.Re: Ols style steerer tube bearings how to find
Check the crown race diameter carefully. There are two main standards for crown races for 1" threaded steeers: Japanese Industry Standard (JIS) is 27.0mm diameter, and ISO is 26.4mm.
SJS make clear in the product descriptions which type each that they sell is:
https://www.sjscycles.co.uk/headsets-1-threaded/
This one comes with both types of crown race:
https://www.sjscycles.co.uk/headsets/mp ... set-black/
Further information here:
https://www.sheldonbrown.com/cribsheet-headsets.html
Re: Ols style steerer tube bearings how to find
And thank goodness they do. Very few other retailers bother and, IME, nearly as many don’t have a clue what you are referring to when you ask.
The older I get the more I’m inclined to act my shoe size, not my age.
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Re: Ols style steerer tube bearings how to find
You could always try getting some ball bearings cheap online to see if that's good enough for you. The races might clean up quite well. The most common size of ball bearings for threaded headsets is 5/32"
Re: Ols style steerer tube bearings how to find
Velo Orange make some nice threaded headsets with replaceable sealed bearings, in a variety of sizes. They have kept my older (late 80s, early 90s) bikes on the road.
Re: Ols style steerer tube bearings how to find
I needed something quick so I got another old type ball bearing headset.
Good job I did as I found my steerer is 1 1/4", and now I have my old set I can get measurements off it.
The new one I have is fitted straight but for a few days it had an annoying creak, seems to have settled now though.
Good job I did as I found my steerer is 1 1/4", and now I have my old set I can get measurements off it.
The new one I have is fitted straight but for a few days it had an annoying creak, seems to have settled now though.
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Re: Ols style steerer tube bearings how to find
1 1/4" is very rare now. Look after it!
Re: Ols style steerer tube bearings how to find
Yes, the old girl already runs a threadless bottom bracket as there is no longer any threads.
Doesnt owe me owt, I'll keep it going as long as it wants to.
Doesnt owe me owt, I'll keep it going as long as it wants to.