Hi there, im new to this forum so please be patient with me! I am looking for some advice regarding driveshafts/splines from an ATLAS axle. This is the rear "live" type axle, I don't know how familiar you will be with these, they were standard in Ford capri's, transit vans etc etc over here in England.
Anyway, as standard, the half-shaft engages the planet gear via an involute spline, with 16 teeth and an outside diamter of about 27.5mm. For my application, i am using larger driveshafts (the axle is going in a rally car with considerably more torque than standard) and the new driveshaft has a larger spline - 18 teeth rather than 16, and a larger O.D - i think it is about 33mm approx. I dont have any more data regarding the spline at present. I beleive they were manufactured by ZF originally...
My question regards the planet gears... Obviously they need to have the new larger internal spline to match the new halfshaft. I understand this can be carried out using wire EDM. My local wire EDM company require a digital (i.e. AutoCAD, Solidworks etc) drawing of the new spline in order to cut it, which is quite understandable. But does anybody know where i can aquire such a drawing? I can use Autocad no problem, but i wouldnt be able to measure the spline accurately enough with my equipment.
So does anybody know if this spline is of a particular standard? if so where, if at all, can i find accurate drawings if it? Has anybody come across/had experience these gears before that could give me some more data about the splines?
Also, i have been told by one source that the planet gear is through hardened, while someone else suggested it will be case hardened (depth of about 0.035"
. From experience, which is more likely? If it is only case hardened, then can it be "re-hardened" post machining?
Many thanks for your help.
Anyway, as standard, the half-shaft engages the planet gear via an involute spline, with 16 teeth and an outside diamter of about 27.5mm. For my application, i am using larger driveshafts (the axle is going in a rally car with considerably more torque than standard) and the new driveshaft has a larger spline - 18 teeth rather than 16, and a larger O.D - i think it is about 33mm approx. I dont have any more data regarding the spline at present. I beleive they were manufactured by ZF originally...
My question regards the planet gears... Obviously they need to have the new larger internal spline to match the new halfshaft. I understand this can be carried out using wire EDM. My local wire EDM company require a digital (i.e. AutoCAD, Solidworks etc) drawing of the new spline in order to cut it, which is quite understandable. But does anybody know where i can aquire such a drawing? I can use Autocad no problem, but i wouldnt be able to measure the spline accurately enough with my equipment.
So does anybody know if this spline is of a particular standard? if so where, if at all, can i find accurate drawings if it? Has anybody come across/had experience these gears before that could give me some more data about the splines?
Also, i have been told by one source that the planet gear is through hardened, while someone else suggested it will be case hardened (depth of about 0.035"
. From experience, which is more likely? If it is only case hardened, then can it be "re-hardened" post machining?Many thanks for your help.
