Drill bits with sealed bearing are designed for a wide range of applications and give high performance due to the use of improved reliability bearings, advanced bit body protection system and optimal cutting structure. Motor bits can have both friction and roller bearings. The friction bearings use antifriction wear-resistant material with silver coating.
This product line may have either milled teeth or TC I. To increase steel teeth life, steel teeth are hardfaced with wear-resistant tungsten carbide based material. 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.
Bit lubrication system is designed to compensate grease consumption and pressure during long-term operation. It consists of a 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.
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