Interesting freewheel hub - cartridge bearings
I’m currently building up a shop spares city bike for my wife. It’s going to be a 7 speed flatbar bike. I have a set of wheels, no name English thread freewheel hub on Wolber Gentleman 81 rims, that have been sitting in my shop for a couple of years awaiting overhaul. I removed the NDS locknut but the cone was weird in that it was pretty tight, so I went to drive side and loosened the “cone” only to find the whole axle threaded out like this. I pried off the bearing seals and they looked pretty good so I stuffed some Phil Wood grease in and put everything back together. Spins pretty well. I’m assuming this is from late 80’s or early 90’s. First time I’ve come across a freewheel hub with cartridge bearings.
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Not entirely uncommon, the Specialized road/touring hubs were like that.
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A nice very common bearing (SKF 6001-RS1), can be found for about $5.00 each.
Seals, 1 Material Standard, SAE 52100 Bore, 12mm .4724" -.0003 Outside Diameter , 28mm 1.1024" -.0004 Width, 8mm .3150" +.0000/-.0050 Max Fillet Radius, .012 No. Balls, 7 Ball Diameter, 3/16 Static Load, 500 lbs. Dynamic Load, 805 lbs. : Mike |
Probably Specialized. I have a set. Chrome covers that have Specialized on them. Very good hubs.
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It's a Sanshin. I think of them as Sanshin Gyromaster because that was the first I saw. Lots of slightly different versions. Sold as SunTour and Specialized. Also sold with no markings at all. Wonderful hubs. Really wonderful hubs. One of best ever.
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I’ve got suize hubs like that on my 84 pro tour, and a mixed set of Sansin and suntour superbe pro on my prelude that I found at the thrift store. Great hubs all around.
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Thanks all, good info. It does seem like a solid hub. No marks on it. These came on a bike I bought but can’t remember for sure which one.
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Here is my Specialized front hub. The lettering has worn off the dust cover, but the sealed band is still on. The rear still has the lettering, but no band.
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Originally Posted by Spaghetti Legs
(Post 21024767)
First time I’ve come across a freewheel hub with cartridge bearings.
So I presume this is a rare combination? |
Bringing up the rear.......... with the faded Specialized script.
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I'm having the same issue with my DS rear wheel but my dust cover/cone doesn't quite come off. I tried pulling on the cone itself but it seems pressed into the dust cover. Any ideas?
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