12 1/4" FA637G , Rock Bit , Fluid Cooling System , Conical Insert Shape , TCI Bit , Tricone Bit

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

ROLLER CONE BIT BEARING ASSEMBLY

There have been a number of developments in bearing technology used in rock bits :

The bearing assemblies of the first roller cone bits were open to the drilling fluid.

Sealed bearing bits were introduced in the late 1950s, to extend the bearing life of insert bits.

The sealing mechanism prevents abrasive solids in the mud from entering and causing excess frictional resistance in the bearings.

The bearings are lubricated by grease which is fed in from a reservoir as required.

Some manufacturers claim a 25% increase in bearing life by using this arrangement .

Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd. is established in 1992 and located in Hebei Province, China. Integrated with Beijing Feilong International Trade Co., Ltd. and Beijing Superior Drilling Equipment Co., Ltd. , the company has involved into a comprehensive enterprise integrating production, R&D and distribution of tricone bits, PDC bits, trenchless and rotary drilling tools.

The company serves the customers in oil & gas drilling, mining, exploration, HDD drilling and rotary drilling with covering a complete product line.

The company covers an area of 36,000 square meter and has more than 200 employees, including more than 100 technicians. The company has equipped with contemporary advanced processing equipment of processing and detecting and testing instruments. The company has obtained the certification of the quality system: ISO 9001, ISO 14001, OHSAS 18001 and mostly important API 7-1.

The company’s annual production of various drilling tools is over 10,000 sets, which exported to over 20 countries and regions. We, FeiLong ReTop ( FLRT ) are willing to cooperate with friends at home and abroad to make joint development and contribute to global energy development and urban infrastructure development.