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以研制和开发能与井下动力钻具相匹配的中高速滑动轴承牙轮钻头为目的，从牙轮钻头滑动轴承的材质选择入手，试制成以ＷＣ和ＷＣｏ类硬质合金为摩擦副工作面耐磨材质的新型滑动轴承，在充分进行室内实验的基础上进行了现场试验，为在油田推广使用该型钻头奠定了基础。
In order to develop and develop the medium and high speed plain bearing roller cone bit that can match with the downhole power drill, this paper starts with the material selection of the roller cone bit bearing and makes the test with WC and WCo cemented carbide as the friction working face Wear-resistant material of the new type of sliding bearings, laboratory experiments carried out in full on the basis of field tests, in the oil field to promote the use of the type of drill laid the foundation.