Bearings and stuff

Broadly speaking bearings are divided into two main groups..

• Axial and radial.

• Ball and roller.

• Plain and split.

• Plain and roller.

A journal load is one that

• acts along the shaft axis.

• A thrust load

• A 90 degrees to a shaft.

• A combination of Axial and radial loads.

A plain bearing, is is abroad cylindrical component for which loads.

• radial loads(sliding)

• axial loads.

• combination loads.

• centrifugal loads. loads

Why do plain bearings often have grooves cut in them?

• Ease of fitting onto a shaft.

• lubrication.

• Anti friction.

• To allow for a Babbit to fit.

A split bearing used on big ends and crankshafts may be..

• Anti friction.

• Roller bearing.

• composite construction.

• Ball bearing.

Plain bearing diametrical clearance is..

• Clearance between the rollers on the bearing race.

• Clearance between the bearing and the bearing support.

• A lining material called Babbit.

• Between the bearing surface and the shaft journal.

Where would ball bearings be used?

• Where high radial loads and shock loads.

• A narrow bearing with high speed requirements are needed.

• high radial loads and and thrust loads.

• diametrical cleareance is needed.

Which bearing has the highest radial load and speed capacity?

• Angular contact bearing.

• Spherical bearings.

• Needle bearings.

• cylindrical bearings.

On a tapered roller bearing..

• The outer race is a cup and inner a cone.

• Deep inner and outer raceways.

• Offset inner and outer rings.

• Can not take any radial or axial loads.

What is the difference between a thrust washer and a thrust bearing?

• Thrust bearing takes radial loads only.

• One has ball or rollers in it and one doesn`t, both take axial loads.

• One has ball rollers in it and the other has tapered rollers.

• One allows for heat expansion and one does not.