Imperial Angular Contact Bearings

Angular Contact Ball Bearings:

Angular contact ball bearings are precision-engineered components designed to accommodate combined loads — that is, loads acting both radially and axially. These bearings are specifically constructed so that the contact angle between the raceways and the balls allows them to sustain axial forces in one or both directions, depending on the bearing configuration. This design makes them ideal for high-speed applications requiring high running accuracy and rigidity.

Types of Angular Contact Ball Bearings:

1. Single Row Angular Contact Ball Bearings:

Single row angular contact ball bearings are designed to support axial loads in one direction only. They must be mounted in a pair or in combination with another bearing to balance the axial load in both directions. These bearings are commonly used in machine tool spindles, pumps, compressors, and gearboxes. Key features include:

• Contact angles typically range from 15° to 40°
• High radial and axial load capacity in one direction
• Used in matched pair arrangements (back-to-back, face-to-face, or tandem) for increased performance
• High-speed capabilities with low friction

2. Double Row Angular Contact Ball Bearings:

Double row angular contact ball bearings offer similar characteristics to a pair of single row bearings arranged back-to-back, but in a single compact unit. These bearings can support radial loads as well as axial loads in both directions, making them highly versatile.

• Ideal for applications where space is limited
• High rigidity and load-carrying capacity
• Simplified mounting and alignment
• Common in electric motors, agricultural machinery, and gearboxes

Typical Applications:

Angular contact ball bearings are used in a wide range of industrial and commercial applications where performance, reliability, and efficiency are critical. Common applications include:

• Machine tool spindles: High-speed rotation and precision alignment.
• Electric motors and generators: Where load capacity and quiet operation are important.
• Pumps and compressors: To handle axial loads from impellers or rotors.
• Gearboxes and transmissions: For both light and heavy-duty applications requiring smooth operation.
• Automotive systems: Including steering columns, clutches, and alternators.
• Wind turbines: Supporting combined loads and withstanding variable conditions.
• Conveyors and fans: For reliable and continuous movement with minimal maintenance.
• Medical equipment: High precision and reliability for imaging and diagnostic devices.

Cage Materials:

Angular contact ball bearings are available with various cage materials to suit different operating conditions and performance requirements:

• Steel Cages: Most common and durable, suitable for high-load and high-speed applications.
• Brass Cages: Excellent for high-speed and high-temperature environments, offering superior wear resistance.
• Polyamide (Nylon) Cages: Lightweight and quiet operation, ideal for electric motors and automotive applications; however, not suitable for high-temperature environments.

Seal Configurations:

Angular contact ball bearings are available in both open and sealed versions:

• Open Bearings: Standard configuration with no sealing, allowing for external lubrication. Suitable for applications where bearings are regularly maintained.
• Sealed Bearings: Equipped with contact or non-contact seals on one or both sides, protecting against contamination and retaining lubrication. This configuration is ideal for applications where maintenance is limited or where environmental contaminants are a concern.

Clearances:

Internal clearance is critical to bearing performance and lifespan:

• Standard Clearance (C0): Suitable for most general-purpose applications.
• Increased Clearance (C3, C4): Allows for thermal expansion in high-temperature or high-speed conditions.
• Reduced Clearance (C2): Provides greater precision and rigidity, commonly used in high-accuracy or low-temperature applications.

Clearance should be carefully selected based on application specifics, including speed, temperature, and shaft fit.

Brands We Offer:

We are proud to supply a comprehensive range of angular contact ball bearings from trusted and reputable manufacturers, including:

• SKF: A leading global supplier known for premium quality and innovation. SKF angular contact bearings are designed for superior performance in demanding conditions.
• FAG (Schaeffler Group): Renowned for engineering excellence and reliability, offering high-precision bearings for a wide range of industrial applications.
• NKE: Austrian-made bearings delivering European quality and performance, ideal for both standard and bespoke applications.
• FBJ: A growing brand offering cost-effective bearings manufactured to consistent quality standards, suitable for general industry needs.
• Dunlop: Known for offering reliable and affordable bearing solutions, suitable for light to medium-duty applications.
• Unbranded Economy: A budget-friendly option for less critical applications where cost-efficiency is prioritized over precision or longevity.

Whether your requirement is for high-speed precision equipment or cost-effective machinery components, our extensive range of angular contact ball bearings caters to a broad spectrum of industrial needs. Contact us for expert advice on selecting the right bearing configuration, clearance, and brand for your application.