What copper has a self-lubricating effect
Copper sets are generally made of Sliding Bearing
, do not have self-lubricating effect, with copper alloy to do because the graphite copper sets of its hardness is lower than steel, copper alloy as a loss of parts to protect with the parts.
If you need to have lubrication effect, can be used to purchase spherical bearings
self-lubricating bearings guide sleeve is distributed in the copper sleeve on a number of holes, the hole inlaid with plastic (such as PTFE) or graphite, copper sleeve and internal cooperation with each other running a shaft After the time, the problem of copper sets up, the hole of the plastic is squeezed out, plastic as a lubricant.
I used before, with a set of copper-oriented, I choose the spherical plain bearings
, size can be customized. very convenient.