The wear and wear debris from rotating-platform mobile-bearing knees and fixed-bearing knees were compared in knee joint-simulator studies. The wear rate of the fixed-bearing knees was found to ...

IN your account (NATURE, May 10, p. 43) of Dr. J. Hopkinson's “James Forrest” lecture at the institution of Civil Engineers, appears the following statement: “Another example, having a certain degree ...

This file type includes high-resolution graphics and schematics when applicable. Rotating elements represent one of the most useful, basic, and common machinery elements. Almost every machine contains ...

Bores are sealed with ‘O’ rings' sited in grooves, (figure 1). The ‘O’ rings' are usually of toroidal shape (i.e. circular cross section) and are regulated by BS 1806 and BS 4518. Figure 1. ‘O’ Ring ...

The seals used for most bearings typically go unnoticed until something goes wrong, which often results in unexpected downtime. However, as lifecycle costs and energy savings become increasingly ...