New Carrier Spockets

[Andrew Rowe]

I have put several sets of new sprockets on track that started out new and then slowly wore out and had no problems. I have a NOS set of track on a Loyd carrier at the moment that is giving me problems , you can do several rotations of the track and then it gets out of sequence , they do say it does take a few miles to ' bed ' in. I am thinking of just putting the NOS back on the shelf and running good second hand track that is already 'bedded' in.

[McDell Bros]

Hi everyone. I had a similar problem to what Andrew has with the new track and sprockets, If you have a close look at how the pitch of the sprocket matches the track, on a new set they don,t quite match just as a worn set does not. It appears to me that they were designed to match best in a slightly worn situation which would give it an overall longer life. On our carrier (which had near new track at the time) we just kept driving it and it soon stopped trying to jump out.

[Lynn Eades]

One of the manuals (from memory) said that they are mismatched, and may be so, for up to 100 miles. One can imagine that there would be quite a bit of "stretch" in the initial running in process of the the track, and that once the pin and link load surfaces have bedded to each other, that there would be a period of dimensional stability. (well how else would you describe it?)
From here on, it just goes down hill, so to speak

From the practical side, Does track tension make any difference?

[Hans Mulder]

I had new sprockets on my carrier when I bought it, with old track. Initially the track would ride up as it didn't mesh perfectly, but now it is fine. I have another set of NOS track, however, so ideally when it goes on, I'll need some new sprockets to go with.