Sage Journals: Discover world-class research

Abstract

A number of materials have been run as unlubricated plain journal bearings, against mild-steel journals, at a number of combinations of load P and speed v sufficient to cause failure within 100 hours. For each material the bearing life for various values of P and v giving the same product were similar, but the materials differed greatly in the P and v value which resulted in similar bearing lives.

Polytetrafluoroethylene (P.T.F.E.)-lead-bronze appeared to be outstanding, supporting Pv values as much as 30 times greater than those that resulted in a similar life for other materials and surface treatments commonly used as unlubricated bearings.

The performance characteristics of the various materials are commented on.

Get full access to this article

View all access options for this article.

References

Bowden

F. P.

1950 Nature, vol. 166, p. 330, ‘Friction’.

White

H. S.

1956 J. Res. nat. Bur. Stand., vol. 57, p. 185, ‘Small Oil-free Bearings’.

Mitchell

D. C.

1957 Proc. Conference on Lubrication and Wear, p. 396, ‘The Wear of P.T.F.E. Impregnated Metal Bearing Materials’ (Instn Mech. Engrs, London).

Mitchell

D. C.

Pratt

1957 Proc. Conference on Lubrication and Wear, p. 416, ‘Friction, Wear, and Physical Properties of Some Filled P.T.F.E. Bearing Materials’ (Instn Mech. Engrs, London).

Atkins

B. R.

Griffiths

D. P.

1957 Proc. Conference on Lubrication and Wear, p. 371, ‘Electrical Sliding Contacts and Their Behaviour at High Altitudes’ (Instn Mech. Engrs, London).

Bowden

F. P.

Shooter

K. V.

1950 Research, Lond., vol. 3, p. 384, ‘Frictional Behaviour of Plastics with MoS₂’.

Mitchell

D. C.

Fulford

B. B.

1957 Proc. Conference on Lubrication and Wear, p. 376, ‘Wear of Selected Molybdenum Disulphide Lubricated Solids and Surface Films’ (Instn Mech. Engrs, London).

A Comparison of Materials for Use as Unlubricated Journal Bearings

Abstract

Get full access to this article

References