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Tungsten Carbide Radial Bearings

Tungsten Carbide (TC) radial bearings are made by using a high-temperature furnace sintering process. They are composed of a matrix, tungsten carbide powder, and hard alloy, which are sintered and fused together, and then machined. Orchid Energy Co could supply different types from size 54 to size 286.
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  • Downhole drilling mud motor is one of the most widely used downhole power tool in oil drilling. TC bearing is located in its transmission part and is a key component that affects the lifespan of screw drilling tools. TC bearings are divided into inner and outer bearing sleeves. The inner shaft sleeve is matched and locked with the transmission shaft, and the outer shaft sleeve is assembled with the downhole power drilling tool shell to form a working surface. The main function of the two is to transmit the torque and speed of the motor to the drill bit.
    During the working process, the TC shaft bears the axial and radial forces of the universal bearing and drill bit, and the inner shaft sleeve shows an eccentric movement trend around the outer shaft sleeve. The normal failure form of TC bearings is cylindrical layer wear. Due to long-term resistance to erosion by sand containing well fluids, good wear and corrosion resistance is required.
    Orchid Energy Co uses advanced laser technology to fuse tungsten carbide particles on a corrosion-resistant nickel chromium substrate, forming a dense diffusion layer with a porosity of less than 2%. The bonding strength between the treated layer and the metal substrate is greater than 480 MPa, and the thickness of the treated layer is 0 50-6 35 mm, with excellent resistance to erosion corrosion, wear resistance, and mechanical fatigue.
    The commonly used specifications are as follows:
    • 73mm (2 7/8")
    • 89mm (3 1/2")
    • 120mm (4 3/4")
    • 165mm (6 1/2")
    • 172mm (6 3/4")
    • 203mm (8")
    • 244mm (9 2/3")
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