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The New Zealand Railways Magazine, Volume 3, Issue 10 (May 1, 1929.)

Grease Lubrication of Driving Axleboxes

Grease Lubrication of Driving Axleboxes.

The coupled and driving axleboxes are a departure from the standard New Zealand practice, inasmuch as the journals of these are lubricated with grease. Illustration No. 2 gives a general idea of this (Franklin) type of axlebox.

In place of the standard cellar which is usually packed with thrum and oil, a container in the cellar is packed with grease and provided with a perforated plate on the bearing surface. The follower plate, fitting into the bottom of the cellar, is provided with a spring. This forces the grease on to the journal through the perforated plate, thus ensuring constant lubrication with minimum attention, the feed of the follower plate being automatically controlled by the pressure of the spring.

An eye bolt attached to the follower plate indicates the amount of grease in the cellar. These boxes will run for several months without attention.