stevewatr
Stainless
- Joined
- Aug 9, 2013
- Location
- Worcester County, Massachusetts
My hammond precision grinder has an issue.
I decided to replace the bearings.
I should've left it alone! It was working okay, just a little bearing noise.
I decided to give it a little TLC. There was a small threaded plug above the bearing end cap. I removed it and could see grease inside the hole. So I threaded in a zero fitting and pumped in grease. Something didn't seem right, so I removed the retainer cap, and after cleaning out the grease, found the bearing was shielded.
I'm guessing they are replacements and some one decided to put in shielded bearings??
So, so much for getting grease in them.
They were Hoover 5204z. Funny thing is one side was fully sgeilded, one side only had a shield on the inside.
These are double row, angular ckntact.
So I ordered cheap replacements online (a big mistake) and right out of the wrapper, something wasn't kosher. One bearing felt smooth when rotated by hand, and quiet, but a little stiff. The other had an audible click of the balls, and was easier to turn.
Undaunted, I installed them anyways.
The grinder took longer to spin up to speed, and seemed noisier than ever. Within a couple minutes green grease started oozing out around the shields. Even the looser bearing was oozing, and they both began to get hot.
My questions:
Should I be using a shielded bearing, or even one with a rubber seal?
Do I just need to buy a better quality like fafnir, or skf?
Regards,
Steve Watroba
Sent from my SM-J737P using Tapatalk
I decided to replace the bearings.
I should've left it alone! It was working okay, just a little bearing noise.
I decided to give it a little TLC. There was a small threaded plug above the bearing end cap. I removed it and could see grease inside the hole. So I threaded in a zero fitting and pumped in grease. Something didn't seem right, so I removed the retainer cap, and after cleaning out the grease, found the bearing was shielded.
I'm guessing they are replacements and some one decided to put in shielded bearings??
So, so much for getting grease in them.
They were Hoover 5204z. Funny thing is one side was fully sgeilded, one side only had a shield on the inside.
These are double row, angular ckntact.
So I ordered cheap replacements online (a big mistake) and right out of the wrapper, something wasn't kosher. One bearing felt smooth when rotated by hand, and quiet, but a little stiff. The other had an audible click of the balls, and was easier to turn.
Undaunted, I installed them anyways.
The grinder took longer to spin up to speed, and seemed noisier than ever. Within a couple minutes green grease started oozing out around the shields. Even the looser bearing was oozing, and they both began to get hot.
My questions:
Should I be using a shielded bearing, or even one with a rubber seal?
Do I just need to buy a better quality like fafnir, or skf?
Regards,
Steve Watroba
Sent from my SM-J737P using Tapatalk