PDC Bearings

Retop supplies wear-resistant PDC thrust and radial bearings for high-load, high-speed drilling systems. These bearings offer extreme hardness, low friction, and long-term reliability in harsh downhole environments.

Product Description

PDC (Polycrystalline Diamond Compact) bearings are advanced axial and radial bearing systems used in positive displacement motors, rotary steerable tools, and turbines operating in extreme drilling conditions. Constructed from sintered diamond layers bonded to carbide or steel substrates, PDC bearings deliver exceptional hardness, low wear rates, and minimal friction—making them ideal for high-speed rotation and heavy axial loading.

PDC bearings are widely applied in directional drilling motors (PDMs), downhole turbines, measurement-while-drilling (MWD) tools, and other rotating systems in the oil & gas industry. Their ability to withstand high loads, aggressive fluids, abrasive particulates, and thermal shocks makes them essential for long run times in deep wells, shale formations, geothermal drilling, and offshore rigs.

Features

Ultra-Hard PDC Layer
Offers hardness second only to natural diamond for maximum wear protection.
Axial and Radial Load Support
Designed for both thrust and radial force handling in rotary applications.
Low Friction & Heat Generation
Enables efficient energy transfer and temperature stability during extended operation.
Segmented & Solid Configurations
Available in multiple segment counts and interface designs for tool compatibility.
Excellent Lubrication Compatibility
Performs in oil-based, water-based, or gas-lubricated downhole systems.

Specifications

Specification	Value
Material	PDC on Carbide or Steel Substrate
Hardness	Up to 9,000 HV
Temperature Resistance	Up to 250°C
Load Capacity	Axial up to 300 kN / Radial as required
Outer Diameter	Ø 25 mm – Ø 200 mm
Segment Configuration	6, 8, 12, 16, 24 segments (customized)
Applications	PDMs, MWD Tools, Downhole Turbines

Why Choose Retop as Your Supplier?

Retop is a trusted manufacturer of advanced wear-resistant components, with deep expertise in tungsten carbide and diamond-based technologies. We provide custom PDC bearings backed by ISO 9001-certified production, strict flatness control, and precision segment grinding. Whether you require thrust or radial configurations, Retop delivers long-lasting, high-performance PDC bearings built to withstand the harshest downhole conditions—on time and to spec.