Thrust Ball Bearings – Single Direction

Thrust Ball Bearings – Single Direction

Core Features

  • Pure Axial Support: Specifically engineered to accommodate heavy axial loads in a single direction; they must not be subjected to any radial load.
  • Three-Piece Modular Design: Consists of a shaft washer (inner ring), a housing washer (outer ring), and a ball and cage assembly, all of which are separable for easy mounting.
  • High-Carbon Chromium Steel: Manufactured from premium-grade steel, through-hardened to ensure high fatigue resistance and dimensional stability under pressure.
  • Precision Ball Tracking: Features ground raceways in the washers that allow the balls to rotate with minimal friction, ensuring smooth operation in vertical or axial-thrust applications.
  • Seated or Flat Variants: Available with flat housing washers or self-aligning spherical seating washers to compensate for initial assembly misalignments.

At Kriloha Ltd., we recognize that “Axial-Stability” is the backbone of high-torque vertical systems. Our Single Direction Thrust Ball Bearings are our engineered answer for “Vertical-Load-Control” and “Precision-Thrust-Management”. As a premier provider of industrial components, Kriloha has developed a thrust series that balances mechanical invincibility with the operational agility required for heavy-duty rotation.

The engineering of our thrust series is based on Component-Synergy. By utilizing high-strength cages—available in pressed steel or machined brass—we ensure that every ball is guided with absolute precision, preventing the “bunching” that leads to heat-induced failure. At Kriloha, we verify that our washers are finished with high parallelism to ensure uniform load distribution across the entire ball set. This creates a “Rigid-Resilient” support system that remains stable even under the most punishing axial duty cycles.

Manufacturing these assemblies involves strict Raceway-Geometry Verification. We ensure that every component provides the quiet, low-friction performance required for high-efficiency machinery. Whether you are maintaining a high-capacity vertical pump or a heavy-duty industrial swivel, Kriloha Thrust Ball Bearings provide the mechanical durability your facility demands. By choosing Kriloha Ltd., you are investing in a “High-Load” technology that secures your highest-value rotating assets.

Bearing Table

SR. NO. BEARING NO. BOUNDARY DIMENSIONS (in mm) MASS
(~ Kg.)
d d1 D H
1 51206 30.000 32.000 52.000 16.000 0.140
2 51107 35.000 37.000 52.000 12.000 0.085
3 51207 35.000 37.000 62.000 18.000 0.220
4 51108 40.000 42.000 60.000 13.000 0.125
5 51208 40.000 42.000 68.000 19.000 0.275
6 2546 44.450 45.360 74.612 22.225 0.375
7 51109 45.000 47.000 65.000 14.000 0.140
8 51209 45.000 47.000 73.000 20.000 0.300
9 2547 55.562 56.480 84.137 22.225 0.430
10 2548 66.675 68.000 104.775 28.575 0.895
11 51216 80.000 82.000 115.000 28.000 0.995

Primary Use Cases

  • Vertical Shafts: Supporting the weight of rotating components in vertical pumps and mixers.
  • Crane Hooks & Swivels: Enabling smooth rotation under massive suspended loads.
  • Machine Tool Spindles: Providing axial positioning for spindles that experience high thrust during drilling or boring operations.
  • Automotive Steering Kingpins: Managing the vertical steering loads in commercial vehicle axle assemblies.
  • Industrial Turntables: Supporting the weight of indexing tables and heavy rotating platforms.

Frequently Asked Questions

1. Can this bearing handle any radial load?
No. Single direction thrust ball bearings are designed strictly for axial loads. Any radial load must be supported by a separate radial bearing.
2. What is the difference between the shaft washer and the housing washer?
The shaft washer has a ground bore to sit tightly on the shaft, while the housing washer has a slightly larger bore to allow it to sit in the housing without touching the shaft.
3. Are these bearings suitable for high-speed operation?
They are generally rated for lower speeds than radial ball bearings because centrifugal forces can cause the balls to slide out of the raceways at very high velocities.
4. Why is the “separable” design an advantage?
Being separable allows you to mount the shaft washer, housing washer, and ball assembly independently, which simplifies installation and maintenance in cramped machinery.
5. How do I prevent the balls from “skidding”?
Thrust bearings require a “Minimum Load” to ensure the balls roll correctly. If the axial load is too light, Kriloha recommends using springs to apply a constant preload.

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