Tricone Bits, developed in the early 1930's, were a big improvement over the two cone Roller Bit. Because of its versatility and performance, it's still one of the main Rock Bits in use today.
The IADC Code describes a tricone bit, it tells you what the bit is, steel tooth or button, what formations the bit is meant for, and the bearing type. These codes help the driller describe what type of tricone they are looking for. If you would like to learn more about IADC codes click here. Need to identify an IADC code, use the IADC calculator ©.
Bit Brokers offers a variety of tricones, from sealed bearing button(TCI) bits to open bearing steel tooth bits in a wide range of sizes, in new, rebuilt, and unused/surplus.
The bearings are what make the cones on a Tricone spin. There are four common types of bearings - standard open roller bearings, air-cooled roller bearings, sealed roller bearings, and sealed journal (friction) bearings. We'll look into these different types of bearings, and try to explain the differences.
(The cone pictured to the left is a cut away of a roller bearing.)
Standard open roller bearings are bearings without a seal. This means that the bearings are open to outside debris, which can enter through the cone.
The advantage of an open bearing bit is that they are usually cheaper. They are ideal for drilling shallow holes, in the hundreds of feet. If drilling deeper holes with an open bearing bit you will probably have to pull it out every couple hundred feet to clean out the debris in the cones to free them up.
Air Blast Bearings are equipped on Air Circulation Bits. These bits have air passages that supply air to the bearings for cooling and lubricating of the bearing, and for cleaning of the bearing from the drilling debris.
Sealed Roller Bearings have some of the features of the non-sealed open bearings, but longer lifetime because the bearings are sealed with an O' Ring Seal.
A lubrication and compensator system prevents leakage into the bearing system and stops the possibility of debris blocking the bearing as well as leakage of grease.
Sealed Journal Bearings have very good durability and wear resistance. Instead of rollers inside the cone there is a floating bushing.
The bushing is usually made out of special material that is highly resistant to heat and galling (surface damage).
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, PDC Reamers, Tricones, Tricone Cutters, Hammers & Hammer Bits, PDC Bits, and Drag Bits.
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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