Bearing arrangements

Question 1

Main focus of bearings

Answer 1

• Allow relative movement (normally rotation)

- Prevent relative movement (carry radial and axial forces)

Question 2

Three bearing principles

Answer 2

• Dry
• Wet lubrication
• Rolling elements

Question 3

Three bearing arrangements

Answer 3

1) Locating/ non-locating
2) Adjusted (during fitting, one bearing ring is displaced on its seat until the bearing arrangement achieves the required clearence or necessary preload)
3) Floating (the shaft can be displaced in relation to the housing to the extent of the axial clearence “s”. “s” is chosen to avoid axial clamping and depends on required guidance accuracy and thermal conditions)