| Summary: | Approved for public release; distribution unlimited. === The gear or lubricating oil test instrument described incorporates
the four square principle in its design. This basic configuration is
improved over like devices in that loading may be varied while the
machine is in operation and rotating seals have not been used. The
elimination of the need for these seals allows prolonged operation at
high speeds. The machine will be capable of operation at 10,000 RPM
however, the first phase of operation will call for a speed of 1800
RR1. The device has two separate and complete thermostatically controlled
lubrication systems; this gives the option of testing lubricants in
the main, as well as the test section. The test section is provided
with an observation port which is easily removed to change or service
the test gears. The rig as a whole was designed for reliability of
operation and ease of maintenance.
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