Pumps & Pumping Systems
Engineered for Reliable Pump Performance
Kingsbury hydrodynamic bearings are built to deliver unmatched reliability and longevity in demanding pump applications. From high-speed multi-stage pipeline pumps to vertical turbine pumps in power generation and water treatment, our thrust and journal bearings ensure smooth operation, low friction, and long service life under a wide range of load and speed conditions.
Our product portfolio includes both flooded and direct-lubrication designs to meet the requirements of any pumping environment. Kingsbury bearings are engineered to handle axial and radial loads efficiently, maintaining film stability even during challenging transient events such as startups, shutdowns, and power interruptions.
How It Works
In a fluid-film bearing, a continuous oil film separates metal surfaces to prevent contact and wear. Kingsbury’s design expertise lies in shaping and supplying this film in the most efficient way possible.
- Flooded lubrication (EQH) systems provide consistent performance in moderate-load, bi-directional pumps.
- Directed lubrication (LEG) systems deliver high-load capacity and improved cooling through precisely controlled oil flow.
This allows engineers to optimize pump efficiency, reduce heat generation, and extend maintenance intervals.
Industries and Systems Served
Kingsbury bearings operate at the core of mission-critical pump systems across multiple industries, including:
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Power generation: Boiler feedwater, condensate extraction, and circulating water pumps
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Oil & gas: Pipeline, booster, and process pumps
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Water and wastewater treatment: High-capacity intake, distribution, and desalination systems
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Industrial processing: Refining, pulp and paper, chemical, and mining applications
Each bearing is designed and manufactured to meet or exceed applicable standards such as API 610, ensuring compatibility with global OEM and retrofit requirements.
Retrofit or Upgrade Scenarios
Many operators modernize existing pumps using Kingsbury’s direct-lubrication upgrades. These systems replace older flooded designs, providing better cooling, higher load capacity, and extended bearing life. Optional materials such as chrome-copper pads further enhance heat dissipation and surface stability under heavy operating loads.
Why Choose Kingsbury?
Choosing Kingsbury means partnering with the originator of tilting-pad bearing technology and a century of field-proven reliability. Our bearings are engineered and manufactured to ISO and API standards, with precision from the backing steel through the babbitt or polymer lining.
We collaborate directly with pump OEMs and maintenance teams to specify the right bearing for each application, accounting for shaft speed, oil viscosity, and load distribution.
Our global repair and service network provides full support for evaluation, rebabbitting, and upgrades, ensuring dependable performance over the equipment’s lifetime.
Learn more about the Kingsbury Self-Contained CH Bearing System
For decades, Kingsbury has supplied prepackaged thrust and journal bearing systems designed to simplify pump integration and reduce total lifecycle cost. One of our most proven solutions, the CH System, integrates a self-contained, load-equalizing double-thrust bearing conforming to API 610, along with a built-in oil circulator and journal bearing.
This system eliminates the need for an external lubrication skid by using an internal viscosity pump that circulates oil through shaft rotation.
The benefits include:
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No separate lubrication pump, rundown tank, or accumulator
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No external power or control systems required
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Simplified installation and reduced footprint
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Continuous lubrication during coast-down in case of power loss
As the shaft turns, the internal oil circulator maintains full lubrication until the pump safely stops. On startup, oil flow is automatically re-established without delay. The result is a fully autonomous lubrication process that enhances equipment safety and reliability.
Cost and Safety Advantages
Eliminating external lubrication skids saves on both capital and operational costs. It also reduces potential failure points, improving system uptime. Because oil circulation is driven mechanically rather than electrically, bearing lubrication continues even during power loss, ensuring safe coast-down and preventing damage.
