Drill bits with premium sealed friction bearing are designed for drilling with high WOB and RPM using downhole hydraulic motor.
Designing the bits of this product line involves advanced knowledge-intensive technologies and engineering analysis in the state of the art software systems. High bit performance is achieved due to using of high-quality materials, improved reliability bearings, most recent bit body protection systems and optimum cutting structure layout. This bit type is ideal for horizontal drilling. MotorPro bits use bearings with constituent parts made of antifriction wear-resistant material with silver coating as well as elastomer coating to improve wear characteristics.
This product line may have either milled teeth or TCI. Cutting structure designed with advanced software systems provides effective drilling of any rock type and prolongs bit life. To increase steel teeth life, a patented material is used that consists of a mixture of spherical cast tungsten carbide and small hard-alloy grains. Depending on the rock hardness, either side surfaces or side and end surfaces of steel teeth are hardfaced. The gauge may be protected with tungsten carbide inserts. For additional protection against gauge loss, a near gauge of tungsten carbide inserts may be used.
The gauge and the near gauge rows may include diamond-coated tungsten carbide inserts. Depending on the application, these inserts may come up to 30%, 50% or 100% of the total amount of inserts.
Bit lubrication system is designed to compensate grease consumption and pressure during long-term operation. It consists of an increased grease reservoir with a rigidly mounted cap, a flexible diaphragm, a metal canister protecting the diaphragm from breakage, and channels to connect the grease reservoir with friction areas in bearings.
Shirttail and leg protection
Shirttail and leg leading edge are hardfaced and may be protected with tungsten carbide or diamond inserts or a combination of tungsten carbide and diamond inserts. Bits may have stabilization features to improve bit performance by increasing bearing and cutting structure durability.
Drilling bits for oil and gas industry
Roller cone bits
This product range only contains serial products, in case it does not contain the product you need, please submit a request for its manufacturing.
Volgaburmash and Uralburmash are Russia’s largest companies producing rock-cutting tools