Spherical Roller Thrust Bearings

Spherical Roller Thrust Bearings

Core Features

  • Asymmetrical Roller Geometry: Features barrel-shaped, asymmetrical rollers that are inclined at a steep angle to the bearing axis, allowing them to support extremely high axial loads.
  • Self-Aligning Capability: The raceway of the housing washer is spherical, enabling the bearing to automatically compensate for shaft deflection or angular misalignment between the shaft and the housing.
  • Combined Load Support: While primarily designed for axial forces, the unique internal geometry allows these bearings to simultaneously accommodate moderate radial loads.
  • High-Speed Performance: Engineered with precision-machined cages (often brass or steel) that guide the rollers accurately, reducing friction and heat even under high-velocity rotation.

Optimal Lubrication Flow: The internal design promotes the formation of a stable lubricant film between the roller ends and the guiding flange, ensuring long-term mechanical integrity.

At Kriloha Ltd., we recognize that “Mechanical-Resilience” is non-negotiable in heavy-duty vertical systems. Our Spherical Roller Thrust Bearings are our engineered answer for “High-Capacity-Alignment” and “Combined-Force-Dominance”. As a premier provider of industrial components, Kriloha has developed a thrust series that balances mechanical invincibility with the operational agility required for complex, high-torque environments.

The engineering of our spherical thrust series is based on Geometric-Adaptability. By utilizing a spherical housing raceway, we ensure that the bearing acts as a dynamic pivot, maintaining “Zero-Stress-Concentration” even when the shaft faces significant bending or deflection. At Kriloha, we verify that our rollers are matched to sub-micron tolerances, creating a “Smooth-Motion” barrier that stands up to the most punishing axial duty cycles in mining and energy sectors.

Manufacturing these assemblies involves strict Flange-Finish and Roller-Profile Verification. We ensure that every component provides the silent, low-friction performance required for high-efficiency industrial lines. Whether you are overhauling a massive hydroelectric turbine or maintaining a high-pressure extruder, Kriloha Spherical Roller Thrust Bearings provide the mechanical durability your facility demands. By choosing Kriloha Ltd., you are investing in a “Self-Correcting” technology that secures the integrity of your most critical rotating assets.

Bearing Table

SR. NO. BEARING NO. BOUNDARY DIMENSIONS (in mm) MASS
(~ Kg.)
d D B C T
1 392209 26.500 55.000 12.500 10.500 14.800 0.150
2 509043 26.500 57.000 12.500 10.500 14.800 0.150

Primary Use Cases

  • Hydroelectric Generators: Supporting the massive vertical thrust of turbines and generator rotors.
  • Extruders for Plastics & Rubber: Managing the high back-pressure generated during the material extrusion process.
  • Marine Propulsion: Handling the heavy axial thrust of propeller shafts in large shipping vessels and tankers.
  • Drilling Equipment: Found in the swivels and rotary tables of oil and gas rigs that face extreme downward pressure.
  • Pulp and Paper Mills: Used in refiners and heavy-duty processing equipment where misalignment is common due to thermal expansion.

Frequently Asked Questions

How do these differ from standard Thrust Ball Bearings?

While thrust ball bearings are limited to axial loads, spherical roller thrust bearings can handle much higher loads and accommodate radial forces and shaft misalignment simultaneously.

Can these bearings run at high speeds?

Yes. Due to their optimized roller-to-flange contact and precision cages, they can achieve higher speeds than many other roller-type thrust bearings.

What happens if the shaft is not perfectly aligned?

Because of the spherical raceway, the bearing will adjust internally to stay aligned with the load, preventing the “edge-loading” that causes premature failure in rigid bearings.

Is oil or grease lubrication better for this type?

Oil lubrication is typically preferred for high-speed or heavy-load applications to ensure effective heat dissipation and consistent film thickness at the roller ends.

Are these bearings separable?

Yes. The shaft washer with the roller and cage assembly can be mounted separately from the housing washer, which simplifies the installation process in large-scale machinery.

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