Torque Setting
Discussion
Hello Colin.
Not very tight. Not sure of torque figure but essentially the pre-load is adjusted from the other end so from memory the inner doesn't need flogging up to tightly.
have a read of this link which is published on John uphams website.
www.zen11896.zen.co.uk/vixen/parts/vixen_rwb.html
Neil.
Not very tight. Not sure of torque figure but essentially the pre-load is adjusted from the other end so from memory the inner doesn't need flogging up to tightly.
have a read of this link which is published on John uphams website.
www.zen11896.zen.co.uk/vixen/parts/vixen_rwb.html
Neil.
The outer nut only holds the hub onto the tapered shaft. It doesn't have any effect on the adjustment of the bearings.
The inner nut adjusts the load on the bearings but I would suggest that a torque value for it isn't an appropriate measure if you have squash tubes installed. Measuring the end float i.e. following the directions in the John Upham link is the correct method. Of course you are a little limited by the castellations on the nut because perfect adjustment might annoyingly fall right at the point where you can't get a split pin through the shaft in which case I would tighten a fraction until you can.
By the way, I've changed to machined undeformable tubes which IMHO are much superior to squash tubes. You have to carefully measure the spacing between the bearings to calculate the length you need but then they are a breeze to set up.
Regards,
Tom
The inner nut adjusts the load on the bearings but I would suggest that a torque value for it isn't an appropriate measure if you have squash tubes installed. Measuring the end float i.e. following the directions in the John Upham link is the correct method. Of course you are a little limited by the castellations on the nut because perfect adjustment might annoyingly fall right at the point where you can't get a split pin through the shaft in which case I would tighten a fraction until you can.
By the way, I've changed to machined undeformable tubes which IMHO are much superior to squash tubes. You have to carefully measure the spacing between the bearings to calculate the length you need but then they are a breeze to set up.
Regards,
Tom
Hi tom.
i stand corrected, Always thought the pre-load was set from outer end. Glad I am finding out now i have 4 sets to sort. Interested in your tubes? I have heard lots of tales regarding squash tubes that won't squash and the old one being put back. What material are you making yours from?
Neil.
i stand corrected, Always thought the pre-load was set from outer end. Glad I am finding out now i have 4 sets to sort. Interested in your tubes? I have heard lots of tales regarding squash tubes that won't squash and the old one being put back. What material are you making yours from?
Neil.
Hi Neil,
I got my tubes machined up by my local engineering jobbing shop. I just specced them in mild steel with an ID to give a little clearance on the shaft and an OD about 6mm bigger than that to give me a nice chunky 3mm wall thickness. They were machined from solid rather than starting with a piece of tube. You need to calculate the length you need by installing the bearing cups into the uprights and then doing a few sums to work out the precise distance between the inner bearing races on the shaft. You could assume they should both be the same - mine weren't, I presume down to production variation in the machining of the bearing seats in the uprights.
Regards,
Tom
I got my tubes machined up by my local engineering jobbing shop. I just specced them in mild steel with an ID to give a little clearance on the shaft and an OD about 6mm bigger than that to give me a nice chunky 3mm wall thickness. They were machined from solid rather than starting with a piece of tube. You need to calculate the length you need by installing the bearing cups into the uprights and then doing a few sums to work out the precise distance between the inner bearing races on the shaft. You could assume they should both be the same - mine weren't, I presume down to production variation in the machining of the bearing seats in the uprights.
Regards,
Tom
Neil,
It hasn't been out much in the last couple of years due to start of family and it being in a permanent state of modification. Last time it made a public appearance was TVR Mania at Stamford Hall which was 2000 I think? I've nearly got it back in a presentable state again and it was MOT'd in August for the first time in 3 years so I hope to be getting out in it a bit now. I live in North West Leicestershire.
Cheers,
Tom
It hasn't been out much in the last couple of years due to start of family and it being in a permanent state of modification. Last time it made a public appearance was TVR Mania at Stamford Hall which was 2000 I think? I've nearly got it back in a presentable state again and it was MOT'd in August for the first time in 3 years so I hope to be getting out in it a bit now. I live in North West Leicestershire.
Cheers,
Tom
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