SAE ARP6255

SAE ARP6255 – Aviation Lubricant Tribology Evaluator (ALTE) Method to Determine the Lubricating Capability of Gas Turbine Lubricants

Employing “ball-on-cylinder” philosophy a non-rotating steel ball is held in a vertically mounted chuck and using an applied load is forced against an axially mounted steel cylinder. The test cylinder is rotated at a fixed speed while being partially immersed in a lubricant reservoir. This maintains the cylinder in a wet condition and continuously transports a lubricating film of test fluid to the ball and cylinder interface. The diameter of the wear scar generated on the test ball is used as a measure of the fluid’s lubricating properties.

The apparatus can be used by adjusting the operating conditions to reproduce two different wear mechanisms; mild and severe wear the ALTE therefore has the ability to assess a lubricant’s performance in that regard. These mechanisms are described below.

Product Details

Published:

03/15/2013

File Size:

1 file 150 KB

Note:

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