23 replies to this topic

[burchy35]

I have a kad pinion support in my swifty dog box which it bolted to a 1460 turbo motor and its all working as it should and coping with the torque. For the small cost of the support compared to the rest of the motor, I thought it made sense in using one for a bit more strength. But I don't launch it from stand still.

[imack]

I have a kad pinion support in my swifty dog box which it bolted to a 1460 turbo motor and its all working as it should and coping with the torque. For the small cost of the support compared to the rest of the motor, I thought it made sense in using one for a bit more strength. But I don't launch it from stand still.

I'm getting the impression that these pinion supports work best with a dog box shaft which has a larger diameter in this area over the smaller diameter syncro shaft which needs to be sleeved to fit.

[DeadSquare]

 

Does any one make a shaft out of better quality steel?

I have looked but I've not found one.

 

I am wanting to get a shaft made, but can't find anyone to tell me what steel to use.

[Spider]

 

 

Does any one make a shaft out of better quality steel?

I have looked but I've not found one.

 

I am wanting to get a shaft made, but can't find anyone to tell me what steel to use.

 

 

EN36A

[Spider]

The Early Minis used an SAE8615 Grade of Steel and this was later up-graded to EN-352.

 

Both of these are very good steels for this purpose, however, the EN-36A is better again and is more easy to come by.

 

Any Gearbox Shafting I make, I do in EN-36A and in fact, for most gears, this too is what I use.

[mini13]

on the subject of materials, there was a guy on one of the forums a while back who got some shafts reclaimed by having a bearing surface ( the 1st-3rd motion one one the main shaft) built up by metal spraying, apparently this is a very hard material do you have any knowlege on that?

[imack]

Rang KAD today, bearing ID is 17 mm so shaft diameter has to be reduced before it can be sleeved.

Edited by imack, 21 August 2018 - 03:27 PM.

[Spider]

on the subject of materials, there was a guy on one of the forums a while back who got some shafts reclaimed by having a bearing surface ( the 1st-3rd motion one one the main shaft) built up by metal spraying, apparently this is a very hard material do you have any knowlege on that?

 

I've not done them by spraying but have has a few ground down and then fit a hardened inner race for a Needle Roller, they are available over the counter at most bearing suppliers. I've not done the early small nose, but done a few of the big nose ones, though a few people have done the small nose types too this way, probably be OK with a stock smaller engine.

[dotmatrix]

Rang KAD today, bearing ID is 17 mm so shaft diameter has to be reduced before it can be sleeved.

Just a thought, havent tried it or anything, but what about removing the bearing and fitting a Bush instead? If you dont grind down the shaft maybe the end wont break off.