9 5/8" FSG515G , TCI Bit , Sealed Roller Bearing , Tricone Roller Bit , Tricone Drill Bit

PRODUCT SPECIFICATIONS

Bit Size :9 5/8 inch ( 244.5mm )

IADC : 515

SERIES : FG

Tooth type : ( TCI ) Tungsten Carbide Insert

Connection : 6 5/8 inch API REG PIN

Nozzle : three jet (side) nozzles

SIZE AVAILABLE

From 3 7/8inch to 36inch

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

Most roller-cone bits incorporate what appears to be a ball-type bearing. This is the cone retention feature. The balls prevent cones from separating from their journals. Finally, the lubrication system contains the lubricant that, throughout the life of the bearing system, provides lubrication to bearings and seals. These features are described below.

Roller-bearing systems

Roller bearings are a common bit-bearing system because they can reliably support large loads and generally perform well in the drilling environment. They are typically used on larger-diameter bits (> 14 in.), which have more physical space to accommodate the rollers. To enhance bearing life, leading manufacturers continually research bearing materials, sizing, and shape.

Journal-bearing systems

Journal bearings consist of at least one rotating surface separated from the journal by a film of lubricant. The surfaces are specially designed so that the film of lubricant separates them; were they to touch, mating bearing components would gall or possibly fuse. As long as satisfactory lubrication is provided and loading remains within design limits, journal bearings are extremely efficient. Fig. 3 compares roller-bearing and journal-bearing assemblies.