Angular Contact Ball Bearings

Angular Contact Ball Bearings

Core Features

  • Combined Load Management: Specifically designed with raceways in the inner and outer rings that are displaced relative to each other in the direction of the bearing axis to handle simultaneous radial and significant axial loads.
  • Defined Contact Angle: Features a specific contact angle (typically 15°, 25°, or 40°); the higher the angle, the higher the axial load-carrying capacity.
  • Unidirectional Axial Support: Single-row variants support axial loads in one direction only and are often mounted in pairs or sets to manage bi-directional forces.
  • High-Speed Precision: Engineered for high rotational speeds with high accuracy, making them the standard choice for precision machine spindles.
  • Rigid Assembly: When preloaded, these bearings offer high system rigidity and minimal shaft deflection under operational stress.

At Kriloha Ltd., we understand that “Dynamic-Stability” is the key to high-performance machinery. Our Angular Contact Ball Bearings are our engineered answer for “Combined-Load-Precision” and “High-Speed-Rigidity.” As a premier provider of industrial components, Kriloha has developed a series that balances mechanical invincibility with the operational agility required for complex rotating systems.

The engineering of our angular contact series is based on Optimized-Force-Vectoring. By precision-machining the raceways to specific contact angles, we ensure that axial and radial forces are channeled efficiently through the rolling elements, preventing premature fatigue. At Kriloha, we verify that our bearings—available in universal matching grades—can be installed in back-to-back (DB), face-to-face (DF), or tandem (DT) configurations without the need for complex shimming. This creates a “Rigid-Resilient” support system that maintains absolute shaft alignment even under high thermal and mechanical stress.

Manufacturing these bearings involves strict Contact-Angle Consistency and Runout Verification. We ensure that every set provides the vibration-free performance required for high-precision manufacturing. Whether you are overhauling a high-speed spindle or maintaining a heavy-duty industrial pump, Kriloha Angular Contact Ball Bearings provide the mechanical durability your facility demands. By choosing Kriloha Ltd., you are investing in a “Load-Balanced” technology that secures your highest-value rotating assets.

Bearing Table

SR. NO. BEARING NO. BOUNDARY DIMENSIONS (in mm) MASS
(~ Kg.)
d D B
1 M 25 25.000 62.000 17.000 0.240
2 7206 B 30.000 62.000 16.000 0.197
3 7210 B 50.000 90.000 20.000 0.540
4 7311-B 55.000 120.000 29.000 1.375
5 7314-B 70.000 150.000 35.000 2.645
6 7015 A 75.000 115.000 20.000 0.735
7 307536A 110.000 170.000 21.000 1.810

Primary Use Cases

  • Machine Tool Spindles: Providing the high-speed accuracy and rigidity required for CNC milling and grinding.
  • Centrifugal Pumps: Managing the high axial thrust generated by the impeller during fluid transfer.
  • Electric Vehicle (EV) Drivetrains: Supporting high-speed motor shafts that experience both radial and axial forces.
  • Agricultural Equipment: Used in gearboxes and wheel hubs where combined loads are frequent during field operations.
  • Air Compressors: Ensuring stable rotation for screw and piston drives under constant pressure.

Frequently Asked Questions

1. Why use Angular Contact bearings instead of Deep Groove bearings?
While Deep Groove bearings are versatile, Angular Contact bearings are significantly better at handling heavy axial (thrust) loads while maintaining high speeds and system rigidity.
2. What is the significance of the “Contact Angle”?
The contact angle (e.g., 40°) determines the ratio of axial to radial load the bearing can handle. A larger angle provides greater axial capacity but slightly lower top-speed potential.
3. Do I always need to use these in pairs?
Single-row angular contact bearings can only handle thrust in one direction. If your shaft experiences thrust from both directions, you must mount them in pairs (back-to-back or face-to-face).
4. What is “Preload” and why is it important?
Preload is the intentional application of a permanent axial load during installation. It eliminates internal clearance, increases rigidity, and ensures the balls roll correctly without sliding or “skidding.”
5. Can Kriloha provide high-precision (P4/ABEC 7) variants?
Yes. For machine tool and aerospace applications, we provide precision-grade angular contact bearings designed for ultra-low runout and extreme high-speed stability.

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