I would keep with the 1045 shaft with a zerk added like your doing currently. I understand your looking for something that wont rust, but anything that is made for lifting needs to be maintained. If there is a required greasing schedule, then there will always be eyes on this and it will not...
Tug - Thank you we will be looking into that.
All - Thank you for all of your input and helping with this sanity check. If there are any other possibilities I am open to just about anything.
Brian - I think it looks that way because the bearing wore out the bore. So yes it is not perfect anymore.
Tug - Free float with a light wave spring to keep a little positive pressure. If I hold any bearings positively in a situation like this, they always get a sleeve in between so there are...
Tug - It already has two bearings that a few inches apart so I do not think that is the issue. I will for sure look into bushings and a rubber sealed bearing would be better in this situation as well. We went with shielded bearings because this is all contained inside a large plastic housing so...
TugboatEng - Yes. The axle is stationary and the flywheel spins on it (2 of those bearings in tandem, 1 on each side). It's a running fit on the ID of the bearing/axle and press fit into the casting housing.
Stick. - I always second guess our Chinese factories at least a little. Even if they...
I have a line of fitness equipment that has had a small issue for some time, and now that all the bigger issues are out of the way it is time to tackle the small stuff. We have noticed that the belt side of the flywheel housing is being worn out after about a year's worth of service on a small...