A NASA team is selecting a bearing for the rotating axel of

A NASA team is selecting a bearing for the rotating axel of the antennae of a satellite in orbit. The speeds are relatively slow at 1 rpm. What would you consider in selecting a bearing? What bearing type do you believe is the best choice?

Solution

Considerations:

1. Precision

2. Light weight

3. Material should be heat resitant, wear resistant etc.

4. Low rpm bearings

5. Less space occupied

So, anti friction bearings predominantly satisfy low speed applications. Since, it supports the axle of the antennae of a satellite, the dynamic capacity should be high. So, a SKF 6 series will suit.