Hard-alloy radial bearings
The hard alloy radial bearings for PDM's and turbodrills are produced in a wide range of sizes as per customers' drawings:
Parameter | Bearing diameter | Bearing length |
Inner diameter |
44 mm-228 mm | 51 mm-242 mm |
Outer diameter |
51 mm-42 mm | 25 mm-460 mm |
The operating conditions of the radial bearing run are agreed beforehand:
speed of rotation of the motor shaft , pressure drop across the bit, mud type ( drilling fluid), well configuration (deviation parameters), places of the bearing location in the motor bearing section ( at top, bottom).
Materials, used while production of the composite hard alloy bearing are resistant to the temperature of up to 650°C and are compatible with all the chemical reagents such as water, oil, gas, salt, H2S, H2SO3, H2SO4, HCl, Cl2.2.
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