Any broken teeth on a Curvetine are possibly a warranty item and we will replace any wheels with a defective broken tooth.  I sure haven't seen nor heard from customers with broken teeth recently that I can recall.  Please send me a picture of it next time you see a Curvetine with a tooth broken off. And we have 48r20" and 54r20" planters with 96 or 108 Curvetines per planter in rocky areas with no reports I am aware of.

On planter with this many of any sort of closing wheel, many customers like our regreaseable, triple lip sealed Timken tapered roller bearing hub on the Curvetine. One thing about closing wheels on wide planters - if one bearing goes out you have to stop to replace it.  What is downtime at planting time worth on a 60, 80, 90+ ft wide planter?  Our new 1202 hub with separate interchangeable Curvetine ring (no rights or lefts) should be even better.

Jim at Dawn