Starter
bearings (commonly known as copper sleeves), in normal use, often due
to wear too much copper manufacturers to appear journal and loose copper
sleeves, and ultimately affect the use of composite copper sleeve
machine performance. There are two main reasons why starter copper bushes wear out:
One is that the load that it is subjected to is relatively large. This is an irreversible reality.
The second is poor lubrication, but it can be improved. Most
of the lubrication of crankshaft bushings and armature shaft journals
of starters are oil-free. The bearings are coated with grease when they
are inspected and repaired. The starter is generally not capable of
disassembling the lubricant in normal use. When
the starter is working, the outer surface of the journal is in contact
with the inner surface of the copper sleeve, and part of the grease is
squeezed out of the friction surface, which accelerates the consumption
of grease and causes dry friction between the journal and the copper
sleeve during starter operation. Exacerbates both wear and tear. For
this purpose, two oil grooves with a depth of about 0.8 mm and a width
of about 1.5 mm were machined on the inner surface of the copper
bushing. After the starter was inspected, the tank was filled with
grease and repaired. After inspection, it not only achieves the purpose of long-term lubrication, but also reduces the wear of journals and bushings.
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