Roller cone bits

SKH Series Roller cone bits
RUBBER SEALED BIT WITH HOURNAL BEARING

SKH series Roller cone bit adopts journal bearing rubber O-ring seal along with more aggressive cutting structure. This bit is with the features of longer footage and higher ROP and is the ideal choice for drilling applications in upper homogenous formations.
The size range of SKH series Roller cone bit is from 8 1/2 to 17 1/2 inch ,and IADC varies from 116 to 537 .For example :8 1/2SKH517G.
MAIN STRUCTRE FEATURES
1.Hard faced head bearing surface .Inner hole of cone is silver-plated .The load capacity and seizure resistance of the bearing is greatly improved.
2.O ring seal is made of the more wear resistant and high saturated Buna-N with the increased seal section and precisely designed sealing flange in the cone sealing area has increased the reliability of the seal.
3.High wear resistance and excellent cutting ability of the insert bit are given full play by using carbide compacts of high strength and high toughness in combination with optimized compact numbers and rows, the exposure height and special shaped compacts. For steel tooth bit ,the tooth surface is hard faced with new type of wear resistant material and thus has extended working life the cutting structure while still maintaining high ROP.