duffer
Platinum Member
You are 100% right. Most spindles in all kinds of equipment use sealed bearings. Pumping the void around them is a waste of time and money.As Brown Dog said, greasing thru the zerks probably has little effect. After watching on YouTube the process of greasing spindles, most or all are 'sealed' bearings. The only thing one accomplishes when just shooting grease in the zerks is filling the void in the spindle.
The only way to ensure greasing those bearings is to take the spindle off and removing the seal on the bearing, then manually filling the bearing with grease. At best otherwise all one accomplishes is putting grease on top of one side of the bearing, not 'in' the bearing itself.
I've greased the spindles on mine before both via the zerk and also by opening the spindle up and manually greasing the bearing, then putting the seal back. That's a lot of work removing the spindle just to get some grease in the bearing, so I'm 'hoping' someone on here can verify that I'm dead wrong in the info.
Sealed bearings are not supposed to have to be greased, but the reality is, they do !