rear wheel bearing

[lammy1]

I am rebuilding my rear hub from my 1928 flying squirrel.
After inspecting my rearwheel bearings they are really worn.
The races off the bearing are well worn
is there a source to obtain new bearings?
I have to my knowledge a Enfield rear hub.

thank you for your answers.

Frank

[chstorm]

Hi Frank,

You may contact Phil Haywood at Vintage Bearing Company – vintagebearing@aol.co.uk tel: 01283 509 562.
Address: 17 Studio one, Waterside Court, Burton-on-Trent, DE14 2WQ.

Phil is usually able to help. The Vintage Bearing Co. will even fabricate new bearings for you if they are moe than usual exotic.

Kind regards,
Carl

[Orgasmatron]

I think that you might find that Tim Shelley of Nottingham Engineering Products will be the cheapest (by far) of any supplier. His email address is tim.shelley@nepltd.co.uk
You will have to give him the bearing numbers stamped on the cones and the cups to get the correct bearings.
Chris.

[BRIAN MARSHALL]

The original inner cones were threaded onto the wheel spindle, and these have been obsolete for very many years. If you look in Technicalities there is a drawing for a modified spindle to take off-the-peg bearings, ( RMS5 ).The new spindle incorporates shoulders to act as a bearing stop, and the inners of the bearings are tightened onto them. The Nottingham Engineering Products mentioned by Orgasmatron is the same firm as Rollerball Bearings, that I have detailed previously on this website.
Brian

[lammy1]

To persons who answered, thank you for your replies.

I found the drawing in the Technicalities; it was from Jim Best dated aug 1981.
The article after Jim’s article is from a well known man in this forum that manufactured these spindles: (Brian Marshall)
Brian is there a possibility that you can supply me with a better drawing than that in the Technicalities so i can give it
to a person with a lathe.
The thread is 9/16 x 20 TPI is this the same as bicycle pedal thread?
To make the thread will be the most chalanging because in the Netherlands everything is metric.

There also is an article on a vintage Norton website: https://www.vintagenorton.com/2009/05/enfield-hub-bearings.html
I also found the new numbers for the bearings: RMS5 They are cheap on e-flay

thank you for your replies

Frank

[BRIAN MARSHALL]

Hi,
I’ve had a look at the drawing on the Norton website, and it looks fine. The 9/16″ x 20 TPI British Standard Cycle Thread taps and dies can be bought from various suppliers, such as Tracy Tools.
Brian

[BRIAN MARSHALL]

I’ve just had a quick look on the Tracy Tools website, and in carbon steel, the 9/16″ x 20 TPI taps and dies are £9.00 each, but in High Speed Steel the price leaps to £27.00 for a tap, and £30.00 for a die. OUCH !
Brian

[scott596]

If anyone is interested I have a good threaded bearing available also a spindle and a good outer track £50 for the three. Alan Noakes.

[Stuart Woods]

Dear All

I am currently updating the rear Enfield hub on my 1929 Scott to accommodate a new style wheel bearings due to the fact the old screw on tapered bearings are damaged and irreplaceable. Mr. Brian Marshall has mentioned to me and with reference to his posting in this article that he posted drawings in the Technicalities section of this website a number of years ago. I have scoured the website but been unable to locate the thread or the drawings related to the changes needed, if anyone has a copy it would be greatly appreciated if they could be uploaded again to the site.

Regards

Stuart

[SwedScott]

Hi

Through the years I have amassed a lot of taps and dies of different thread forms and sizes. But despite this, it’s sometimes like I told my wife when she asked me what I kept in a certain cupboard. My answer was: Every possible threading tool, but the one I need at the moment!

Sometimes you have to compromise and use what’s at hand. From an engineering point of  view 9/16”x20 could, for all practical reasons, be substituted with M14x1,25, wich is the most common spark plug thread. Then, of course, new nuts also have to be made, but they are commonly mangled too, in my experience. The difference is that the metric thread is about 0.3 mm smaller in diameter, and the pitch is about o.o2 mm finer. DO NOT MIX, even if it could be possible in one direction!

Yes,  9/16”x20 is one of the threads used for pedal cycle cranks, right hand on the right side and left hand on the left side, if my memory serves me right.

Best regards

Leif M

[Stuart Woods]

Hi Leif

Many thanks for the reply, I was unable to purchase taps and dies for 9/16″ x 20 so yes I compromised and I ended up going for 9/16 x 18tpi instead as it was the closest set I could find at hand in the shop. I have been very lucky so far as Hong Kong used to be a manufacturing country, a lot of the old tool shops are still in operation and have dirty old boxes of BSC and BSF taps and dies that have been on their shelves for the last 50+ years. But alas even the rear Enfield spindle size threw them off, I am hoping to finish the bike in the next few months as I take advantage of the down time due to the virus putting a temporary halt to my business.

Regards

Stuart

[richard tann]

Glyn Chambers has asked me to post on his behalf.

He thinks he can help with these parts, please make contact by e-mail

glyn.brenda.chambers(at)gmail.com

[Stuart Woods]

Hi Richard

Many thanks for the reply, I have already turned up the relevant parts for the rear wheel now and installed the new bearings.

Regards

Stuart

[Author]

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