Bearing arrengements

Question 1

What bearings are suitable when bearing intervals are short and shaft shrinkage don’t greatly affect bearing operation?

Answer 1

A pair of angular contact ball bearings or tapered roller bearings, used in paired mounting to accommodate axial load.
After mounting, the axial clearance is adjusted using nuts or shims.

Question 2

What bearings are suitable to accomodate heavy axial load

Answer 2

Heavy axial load can be accommodated using thrust bearings together with radial bearings.

Question 3

What are floating bearing arrangement and what bearings are suitable?

Answer 3

There is “fixed” side and a “floating” side. The fixed side controls the shaft axially. The floating side has more freedom of movement (floating) to help compensate for misalignment and thermal expansion/contraction.
Are common with self-aligning ball bearings, deep groove ball bearings and spherical roller bearings.

Question 4

Why should 1 bearing be avoided? Why should more than 2 be avoided?

Answer 4

1 bearing alone can’t hold the moment.

More than 2 leads to unexpected extra loads