The pure gum rubber sleeve of the Type A Valve offers excellent abrasion resistance, and since the Type A uses only air pressure to operate, there are no moving parts to break or wear out.
Good extreme pressure, abrasion resistance, reduce the tool wear, extending the service life of cutter.
良好的极压、抗磨损性能，减少刀具磨损，延长刀具寿命。
3
The invention provides a sinter oil-containing bearing that inhibits self abrasion and shaft abrasion even under the high surface pressure and manufacturing method thereof.