Is a magnet acting on a bearing detrimental?

[pete]

I have a 28x15x7 stainless steel bearing mounted close to a powerful magnet and the magnet courses some drag when the bearings turns. This is no problem in this design, it’s a hand operated lever so very low rpm and I was even thinking that a magnet might me a good way to add some dampening to the action but I’m wondering if having a magnet acting on a bearing like this has any long term detrimental effect on the bearing it’s self?

 

[Dr.D]

What kind of bearing is it? Rolling element, fluid film, sleeve, or what?

 

[pete]

Normal bearing. Deep groove, rubber sealed bearing. Two Raceways a cage and some balls. I was thinking that in motion the lubrication is supposed to form a film and the component parts are all supposed to adapt certain positions of reduced contact but with the magnet there maybe things would be pulled out of place and start to wear on each other? but then again there's an acceptable amount of misalignment of load on these things and the force the magnets pulls on them is so small compared to the load they are carrying.

 

[Dr.D]

The term "normal bearing" really does not say much at all. There are dozens of other bearing types, none of them abnormal. It is only when you begin to describe the construction (deep groove, two raceways, a cage, some balls, etc) that you begin to communicate what your bearing type is.

 

[pete]

Stainless Steel rubber sealed single row deep groove ball bearing. Here's a link:

https://simplybearings.co.uk/shop/p...oove-Ball-Bearing-15x28x7mm/product_info.html

 

[Rive]

I was thinking that in motion the lubrication is supposed to form a film and the component parts are all supposed to adapt certain positions of reduced contact but with the magnet there maybe things would be pulled out of place and start to wear on each other?

Certainly - as any other type of static load will cause the exact same effect.

 

[pete]

I thought it would be the same but then a load acts upon the raceway that acts on the bearing and so on but the magnet acts on the components individually and also it can, and in this case would, pull them from the side or any other direction as the load was acting down on them.