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Tricone Bits
6in IADC517(152.4mm)
IADC:517
ID:WFN152.4
Design Specifications
IADC Code: 517
Type Insert Tooth
Cone Qty 3
Nozzle Qty 3
Sealing Types Rubber
Bearing Types Sliding
Center Hole NO
Tooth Profile wedge shape
Connection Size 3 1/2 REG
Gauge strengthening type Alloy tooth
Weight 21Kg
Packaging Wooden box
Operating Parameters
Rotary Speed: 60-180 r/min
Pumping Pressure: 8-18 Mpa
Bit Weight on bit 0.4-0.65KN
Sediment Concentration: < 0.5%

q (22).jpgThe above parameters are only for reference. Optimized parameters are determined by drilling process and lithology of formations on site.


tricone bit nozzle and assembled size       

Bit  diameterNozzle outer diameterassembled lengthNozzle exit diameter (inner diameter)
in   mm mmmmmm
3 1/2~5 1/288.9~139.720.317.54~10
5 5/8~7 3/8142.9~187.323.619.05~16
7 1/2~8 1/4190.5~209.629.821.07~18
8 3/8~14 5/8212.7~371.533.027.08~20
≥14 3/4≥374.640.927.010~22
Note: the assembled lenght is length from nozzle inlet to retaining ring groove

Download PDF :
6in IADC517(152.4mm)

Applicable formations:

Soft: such as clay, marl, unconsolidated sandstone, salt, etc.

Design character:

O-ring sealed journal bearing

Roller bearing structure with head bearing hardfaced and cone bearing silver plated to improve load capacity and anti-galling ability of the bearing. More wear and high-temperature resistant highly saturated Buna-N rubber O-ring is used to improve reliability. Larger O-ring section reduces pressure on the seal, and the boss at outer end of the seal is also helpful for reliability of the seal.Surface of the thrust bearing couple are specially treated for decreasing friction and increasing rigidness, load capacity of the bit and anti-galling ability of the bearing are consequently improved.

 Cutting structure

Offset crested scoop chisel tooth.

 Hardfacing on shirttail

This feature can provide better protection for seal and bearing to extend the bit’s service life.

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