Steph Dale
Western Thunderer
Nope.Steph, I'm just wondering if these gearboxes would suit Roxey's 13:1 or 26:1 gear sets?
Steph
Nope.Steph, I'm just wondering if these gearboxes would suit Roxey's 13:1 or 26:1 gear sets?
Well, passing current across a wear surface will tend to introduce electro-erosion in to the mix. Reducing area and lubricant selection can reduce this dramatically. The contact areas on a ball race are very small indeed so electro-erosion can be a bit of a problem. Adding AC in to the mix with DCC does increase the probably of an arc being struck within the bearing and this could be one of the mechanisms by which 'cold welding' can take place. This can, in worst case, lead to a siezed bearing (although not likely in our applications). The cold welding effect will lead to high wear and electro-deposition at a microscopic level; this will soon be enough to negate the fitting of ball races.I'd not thought of that, but now you mention it yes it seems obvious that current flowing through roller bearings is, over time, inevitably going to cause arcing and deterioration of the rolling characteristics - if not total seizure!
What is the additional effect of DCC in this scenario - increased liability go arcing?
Nope.
Steph
Not even just the worm? 26:1 is quite appealing. Are they cut the same and the same dimensions?
That looks smashing!