Will these bearings work for a vacuum pump? - Page 3 - PeachParts Mercedes-Benz Forum

Stevo · #31 05-06-2013, 05:39 PM

Quote:

Originally Posted by funola

Stevo, are you saying your pump balls look like my pic but have 6 balls? maybe some kind of optical illusion is going on in my pic? I'll have to dig out my spare pump and have a closer look.

Yep, In your pic I would also swear there would be 8, but theres only 6. When I swung the arm over backward I could see the entire bearing. In the second pic as you can see, I'm simulating where the roller arm is in your pic also showing 4 balls from about the same angle. does this make sense?

I got a bearing out by finding just the right size sockets to use to support what needed supporting while I drifted the pin out. The roller is removed then a bearing is tapped out, inward, again using a socket. This way I wasn't beating on the bearing in a damaging way. Somebody

used to doing this kind of work would have had it done in no time.

OM617YOTA · #32 05-11-2013, 04:28 PM

According to the SKF data online, despite being 8 ball, each of the bearings I purchased are good for 80k rpms, 213lbs static, and 526lbs dynamic loads.

That is far in excess of any loading these bearings will see, and there are TWO of them.

I'm going to go ahead and install them and roll tide.

newuser · #33 03-16-2022, 05:34 AM

Would ceramic balls be more durable?

whunter · #34 03-18-2024, 10:50 AM

for a friend.

Diesel911 · #35 03-19-2024, 08:41 PM

Quote:

Originally Posted by OM617YOTA

According to the SKF data online, despite being 8 ball, each of the bearings I purchased are good for 80k rpms, 213lbs static, and 526lbs dynamic loads.

That is far in excess of any loading these bearings will see, and there are TWO of them.

I'm going to go ahead and install them and roll tide.

The stock bearings with a metal cage have lasted like 30 years. With what I think is a reasonable exception were one of the members said if you have extra vacuum leaks the vacuum pump gets more use and hence a shorter life.

whunter · #36 03-20-2024, 11:33 AM

Quote:

Originally Posted by Diesel911

The stock bearings with a metal cage have lasted like 30 years. With what I think is a reasonable exception were one of the members said if you have extra vacuum leaks the vacuum pump gets more use and hence a shorter life.

We all have plenty of experience with the beloved vacuum leak.