Strong Farmer Posted February 14, 2022 Share Posted February 14, 2022 On 1/6/2022 at 10:12 AM, Ox said: I'm guessing that the reason for no zerk is b/c they now have a sealed bearing. If you pushed grease in from the other side, you would likely blow the seal off the track side. Where the older units likely had open bearings with a secondary seal inside that you COULD actually push grease through w/o hurting. Been quite some time since I've had one of those apart! Keep grease in it - and the bearings don't go bad. LOL! I've never used a needle gun. Old ones with zerk fittings lasted about 10,000 miles if greased often. New sealed ones from doo I have gotten 7500 miles no issues. They are a bigger bearing then what was used in past. Not many failures on newer doo’s. Poo looks like they still use smaller bearings 🤣. Quote Link to comment Share on other sites More sharing options...
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