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Tricone Bits

IADC Codes - Tricone Rock Bits IADC Codes make it easier for drillers to describe what kind of rock bit they are looking for to the supplier. Bit Brokers International follows the IADC bit classification system in which the first three digits classify the bit according to the formation it is designed to drill and the bearing/seal design used.

Need to identify an IADC code? Use the BBI Bit Calculator©.

First Digit: 1, 2, and 3 designate STEEL TOOTH BITS with 1 for soft, 2 for medium and 3 for hard formations. 4, 5, 6, 7 and 8 designate TUNGSTEN CARBIDE INSERT BITS for varying formation hardness with 4 being the softest and 8 the hardest.

Third Digit: This digit will classify the bit according to bearing/seal type - see information on different bearing types - and special gage wear protection as follows: 1. Standard open bearing roller bit 2. Standard open bearing roller bit, air-cooled 3. Standard open bearing roller bit with gauge protection which is defined as carbide inserts in the heel of the cone 4. Sealed roller bearing bit 5. Sealed roller bearing bit with gauge protection 6. Journal sealed bearing bit 7. Journal sealed bearing bit with gauge protection

Fourth Digit: The following letter codes are used in the fourth digit position to indicate additional features: A. Air Application R. Reinforced Welds C. Center Jet S. Standard Steel Tooth D. Deviation Control X. Chisel Insert E. Extended Jet Y. Conical Insert G. Extra Gage Protection Z. Other Insert Shape J. Jet Deflection

Bearing Types: There are primarily four (4) types of bearing designs used in tricone drilling bits: 1.) STANDARD OPEN BEARING ROLLER BIT: On these bits the cones will spin freely. This type of bit has a front row of ball bearings and a back row of roller bearings. 2.) STANDARD OPEN BEARING ROLLER BIT FOR AIR DRILLING: Cones are similar to #1, but have air injection directly to the cones to cool the bearings. Air flows into the cone through the passage ways inside the pin. (Not for mud applications) 3.) SEALED BEARING ROLLERS BITS These bits have an O-Ring seal with a grease reservoir for bearing cooling. The seals acts as a barrier against mud and cuttings to protect the bearings 4.) JOURNAL BEARING ROLLER BITS These bits are strictly oil/grease cooled with nose bearings, O-Ring seal and a race for maximum performance.

- For more info on bearings, click here.

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BIT BROKERS INTERNATIONAL

5568 Logan Road,

West Frankfort, IL USA

62896

Phone : 618 - 435 - 5811

Fax : 618 - 435 - 2388

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Bit Brokers is Quality Rock Bits. Since 1988 we have kept our clients ahead of schedule and under budget by providing the highest quality tools at the best possible prices. We supply the industry with quality tools such as, Hole Openers/Reamers, PDC Hole Openers/Reamers, Tricones, Tricone Cutters, Hammers & Hammer Bits, PDC Bits, Drag Bits and Directional Drilling Tools.

We ship to 50 states and 82 different countries, and serve industries such as Construction, Oil & Gas, Mining, Horizontal Directional Drilling (HDD), Water, Geothermal and Environmental. Our experienced staff is here to assist you with everything from choosing the right bit to shipping around the globe.

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