Mini Front Hub Drive Flange Shaft info
Discussion
Ok I will fess up this is not for a mini, but a vehicle that uses some of its mechanicals, hopefully someone will be able to point me in the right direction on this.
I build a car (see website in profile) that uses a K Series in the back this then uses a bespoke shaft with a mini outer joint. The rear hub bearing carrier is a bespoke item very similar to the cast 4 bolt mini item www.minispares.com/Product.aspx?pid=38421 using I beleive the GHK1018 type bearings as the inner part of the fabricated carrier is identical to the mini item.
But what I am trying to do is upgrade the driveshaft to a later type and wondered whether I can use this www.minispares.com/Product.aspx?pid=33411 as it uses a smaller shaft, hopefully one that mates to a K Series, I am also unsure of what holds the bearing together in this setup as the shaft seems to hold it all together in the old setup.
Thanks
Joe
I build a car (see website in profile) that uses a K Series in the back this then uses a bespoke shaft with a mini outer joint. The rear hub bearing carrier is a bespoke item very similar to the cast 4 bolt mini item www.minispares.com/Product.aspx?pid=38421 using I beleive the GHK1018 type bearings as the inner part of the fabricated carrier is identical to the mini item.
But what I am trying to do is upgrade the driveshaft to a later type and wondered whether I can use this www.minispares.com/Product.aspx?pid=33411 as it uses a smaller shaft, hopefully one that mates to a K Series, I am also unsure of what holds the bearing together in this setup as the shaft seems to hold it all together in the old setup.
Thanks
Joe
Hi
Nope that parts are correct sort of.............
Although its hard to explain, the mid engined car I build has a de deon tube on the back, onto this are bolted bearing carriers like the cast ones in the first link.
The finished car uses a tradition mini driveshaft whereby the shaft itself is what the inner part of the rear bearings are on.
The second link shows a different drive flange for a different CV joint, the bearings in this system rest on the drive flange itself, not the driveshaft.
So on the second system I was interested in knowing as that flange must be used on a mini somewhere what keeps the bearing together? any ideas whether there is driveshaft that goes in the splines of the drive flange that hooks up to a K Series.
I know I am on the classic mini's forum but just hoped their was someone whos dropped a K Series in one and had to build up the front hubs to make it all work.
Thanks
Joe
Nope that parts are correct sort of.............
Although its hard to explain, the mid engined car I build has a de deon tube on the back, onto this are bolted bearing carriers like the cast ones in the first link.
The finished car uses a tradition mini driveshaft whereby the shaft itself is what the inner part of the rear bearings are on.
The second link shows a different drive flange for a different CV joint, the bearings in this system rest on the drive flange itself, not the driveshaft.
So on the second system I was interested in knowing as that flange must be used on a mini somewhere what keeps the bearing together? any ideas whether there is driveshaft that goes in the splines of the drive flange that hooks up to a K Series.
I know I am on the classic mini's forum but just hoped their was someone whos dropped a K Series in one and had to build up the front hubs to make it all work.
Thanks
Joe
right i understand you more clearer know,
the drive flange should fit through the bearings in the rear hub [bearing carrier], i dont know for sure, [ guru will know, ] but if the rear bearings are smaller than drum brake front bearings it wont work , and you will either have to make front bearings fit the rear hubs or make proper rear bearing carriers to weld to the dedion tube, you then fit a drum brake CV through the rear of the drive flange, then the big nut , this is what holds everything together,.
if you are going to put over 100 hp through the transmision, i would be looking at using the disk brake CVs and drive flanges, with appropriate bearing carriers,
i myself have made a front subframe for the K series to fit into a round front mini, ,you could have some new shafts made up properly for the job , but would not be cheap, i sleaved and welded the mini outer section to a K series inner section, as the person i did it for would not pay for pucka shafts making.
i hope all that made sence.
carl
the drive flange should fit through the bearings in the rear hub [bearing carrier], i dont know for sure, [ guru will know, ] but if the rear bearings are smaller than drum brake front bearings it wont work , and you will either have to make front bearings fit the rear hubs or make proper rear bearing carriers to weld to the dedion tube, you then fit a drum brake CV through the rear of the drive flange, then the big nut , this is what holds everything together,.
if you are going to put over 100 hp through the transmision, i would be looking at using the disk brake CVs and drive flanges, with appropriate bearing carriers,
i myself have made a front subframe for the K series to fit into a round front mini, ,you could have some new shafts made up properly for the job , but would not be cheap, i sleaved and welded the mini outer section to a K series inner section, as the person i did it for would not pay for pucka shafts making.
i hope all that made sence.
carl
ok, right, i think this is the answer you are looking for....
the bearings run on the c.v joint NOT the driveshaft.
the std rear bearing is GHK1548 and is a taper type bearing.
the drum brake front bearing is GHK1018 and is a ball type bearing, without measuring this i think its a differant size to the rear bearing - the part number indicates this. the disc brake bearing is GHK1140 - the inner dimension is the same, but if you use drum bearings in a disc application you cannot get the thing apart again (from memory)
i dont know what drive flange you are currently running in your car, so i will assume you have nothing.
option one is the small drum brake c.v GCV1105 which needs the flange 21A231 (has studs fitted), coller 2A4295, washer 2A7372 and nut 21A79 to work (in a mini hub) the c.v fits inside the flange, which then provides the surface for the bearings to run on.
option two is the large disc brake c.v GCV1013 which needs the flange 21A1270 (cooper s 7.5" type, no studs as the studs are part of the disc)) or 21A2695 (8.4" later type, this comes with studs>. you will need a washer FAM9270 and a nut BTA249MS to work (again, on a mini hub) in this type the larger bore of the c.v provides the surface for the bearing, the flange sits on the smaller (in length) splined portion at the end.
i have a customer who buys loads of (option one) for the rear engined race cars he builds, so it must work in this application, i can only assume that the c.v's arnt so stressed due to the lack of steering input.
both c.vs have the same inner splines, so any of the driveshafts (thick or thin) can be used with them.
hope this helps
the bearings run on the c.v joint NOT the driveshaft.
the std rear bearing is GHK1548 and is a taper type bearing.
the drum brake front bearing is GHK1018 and is a ball type bearing, without measuring this i think its a differant size to the rear bearing - the part number indicates this. the disc brake bearing is GHK1140 - the inner dimension is the same, but if you use drum bearings in a disc application you cannot get the thing apart again (from memory)
i dont know what drive flange you are currently running in your car, so i will assume you have nothing.
option one is the small drum brake c.v GCV1105 which needs the flange 21A231 (has studs fitted), coller 2A4295, washer 2A7372 and nut 21A79 to work (in a mini hub) the c.v fits inside the flange, which then provides the surface for the bearings to run on.
option two is the large disc brake c.v GCV1013 which needs the flange 21A1270 (cooper s 7.5" type, no studs as the studs are part of the disc)) or 21A2695 (8.4" later type, this comes with studs>. you will need a washer FAM9270 and a nut BTA249MS to work (again, on a mini hub) in this type the larger bore of the c.v provides the surface for the bearing, the flange sits on the smaller (in length) splined portion at the end.
i have a customer who buys loads of (option one) for the rear engined race cars he builds, so it must work in this application, i can only assume that the c.v's arnt so stressed due to the lack of steering input.
both c.vs have the same inner splines, so any of the driveshafts (thick or thin) can be used with them.
hope this helps
Hello
Thanks for this, the project was engineered by someone else, I am trying to put a parts list together so it can be re created.
I will list the current parts so you can see what I am up to
Bespoke de deon and rear hub bearing carrier.
Rear wheel bearing appear to be GHK1018 although only markings on them are 2LUT, so going from dimensions
CV joint is a standard looking large spline mini one whereby the inner part hub bearings fit on the shaft, and the big nut on the shaft holds it all together.
The drive flange, is a mini item we think but with some machining to accomodate a brake disk being bolted to it.
Metro 213mm brake disk bolted to back of drive flange.
Now this was all put together in the late 80's my mission is to simplyfy this as at the momment we have to have the driveshafts re worked with a mini/metro outer CV onto a K Series driveshaft.
I was hoping the drive flange with the the inner bearing carrier on it and reduced size spline hole maybe the same as one of the K Series outer CV joints, so doing away with the need to rework the shafts, we can adjust the length of the de deon to cope with track etc.
Also maybe using a metro/mini drive flange that can accomodate the disc without machining would be good,but I need a PCD of 100mm.
My other concern was how the bearings held together but reading above the CV joint clamps it all up in both instances, in the proposed second example it must be quite accurate as overtightening would load up the inner races of the bearing, too loose and you would have play? is there a torque setting?
Anyone know if there is K Series shaft/CV Joint drive flange combination that works, I know its a long shot.
Thanks for all your help
Joe
Thanks for this, the project was engineered by someone else, I am trying to put a parts list together so it can be re created.
I will list the current parts so you can see what I am up to
Bespoke de deon and rear hub bearing carrier.
Rear wheel bearing appear to be GHK1018 although only markings on them are 2LUT, so going from dimensions
CV joint is a standard looking large spline mini one whereby the inner part hub bearings fit on the shaft, and the big nut on the shaft holds it all together.
The drive flange, is a mini item we think but with some machining to accomodate a brake disk being bolted to it.
Metro 213mm brake disk bolted to back of drive flange.
Now this was all put together in the late 80's my mission is to simplyfy this as at the momment we have to have the driveshafts re worked with a mini/metro outer CV onto a K Series driveshaft.
I was hoping the drive flange with the the inner bearing carrier on it and reduced size spline hole maybe the same as one of the K Series outer CV joints, so doing away with the need to rework the shafts, we can adjust the length of the de deon to cope with track etc.
Also maybe using a metro/mini drive flange that can accomodate the disc without machining would be good,but I need a PCD of 100mm.
My other concern was how the bearings held together but reading above the CV joint clamps it all up in both instances, in the proposed second example it must be quite accurate as overtightening would load up the inner races of the bearing, too loose and you would have play? is there a torque setting?
Anyone know if there is K Series shaft/CV Joint drive flange combination that works, I know its a long shot.
Thanks for all your help
Joe
I have posted up some pics http://silicon.fastnet.co.uk/speciali
I would have thought that with the K Series being fitted in metro/rover 100's their should be something I can harvest the bits off to make this work.
Either
1.) 100mm PCD Metro drive flange that takes a K Series shaft.
2.) K Series shaft that mates to 1275 mini drive flange.
Thanks
In the meantime I will keep accumulating bits....................
I would have thought that with the K Series being fitted in metro/rover 100's their should be something I can harvest the bits off to make this work.
Either
1.) 100mm PCD Metro drive flange that takes a K Series shaft.
2.) K Series shaft that mates to 1275 mini drive flange.
Thanks
In the meantime I will keep accumulating bits....................
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