My experience is lumited to B series tractors but I would bet the old bearings are Koyo. The Kubota price for standard ball bearings is usually pretty competitive.What bearings does everyone use when they put new bearings into the spindles.
I would think those are ordinary deep groove ball bearings. Koyo is readily available from sources other than Kubota. What size are the bearings- e.g 6305, 6405. etc? Why pay more for sealed bearings? I am not sure exactly what deck you have but a quick check suggests Kubota wants about $12 for RCK60 spindle bearings.Why I ask is because this is the second set this summer that are failing and getting noisy. I bought NTN from local parts supplier (of course removed the rubber seals before installing) the new ones I put in were quite for 20 hrs but now have become noisy. Yes I do grease them. I do believe the oem where KOYO . Looks like I'll have to spend close to triple the cost for kubota ones. This is why I'm asking .
6205 is a very common size medium duty ball bearing. I buy the Koyo 2RS variant by the dozen from MRO Supply. They drop ship direct (and free) from Koyo America warehouse in Memphis. Current price is $14 each.All these decks use the same ball bearing to support the spindles.
It's a stock bearing, a "6205".
Thinking about putting some Timkens on the shelf for next time...
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