How many bales will belts last on a JD 467 rd baler?

I have nearly 19,000 bales on the belts and I'm beginning to experience some core starting problems in Coastal Bermuda.. How many bales should a set of belts successfully bale? IIRC I replaced the belts on my last 467 at 20,000 bales. I may have to get a welder to weld some beads on the steel starter roll again.

Thanks,Jim

How many bales will belts last on a JD 467 rd baler?