7005c Single Row Angular Contact Ball Bearing Trademark YW Cage PA66-GF25 Seal Type Open Model NO. 7005C HS Code 8482103000

ANGULAR CONTACT BALL BEARING

Angular Contact Ball Bearings are precision-engineered bearings designed to accommodate combined loads, simultaneously carrying significant radial and axial (thrust) forces in one direction.

Their unique internal design features a contact angle between the races and the balls, which is the key to their high performance in applications requiring rigidity and accurate axial guidance.

KEY FEATURES & DESIGN

Contact Angle: 
The defining feature is the contact angle (typically 15°, 25°, 30°, or 40°). A larger angle provides higher axial load capacity but lower radial capacity, and vice versa.

Single-Row vs. Multiple-Rows: 
Available in single-row (for moderate loads), double-row (for higher load capacity and moment stiffness), and even four-point contact designs (for combined loads and reversing axial loads).

Cage Options: 
Equipped with various cage types (e.g., pressed steel, machined brass, or polymer cages) to optimize performance, speed, and lubrication.

Precision & Clearance: 
Manufactured to ABEC precision classes (e.g., ABEC-1, ABEC-3, ABEC-5) and available with specific internal clearances (C2, CN, C3, etc.) to suit different operational conditions like speed and temperature.

Configurations: 
Often supplied in matched sets (duplex, triplex) where bearings are pre-loaded against each other (Universal, Back-to-Back, Face-to-Face) for extreme rigidity and rotational accuracy.

PRIMARY FUNCTION & CAPABILITY

The core function of an Angular Contact Ball Bearing is to support combined radial and axial loads acting in tandem. Unlike deep groove ball bearings, they are specifically optimized to handle high axial forces, making them ideal for applications where shafts must be positioned accurately with minimal axial play.

MAIN APPLICATIONS

These bearings are critical components in high-precision and high-speed machinery across numerous industries:

Machine Tool Spindles:
CNC machining centers, lathes, and grinders where high rigidity, speed, and accuracy are paramount.

Power Transmission:
Gearboxes, pumps, and compressors.

Automotive:
High-performance wheel hubs, transmissions, and electric vehicle motors.

Aerospace:
Helicopter transmissions, jet engine components, and landing gear systems.

Robotics & Automation:
High-precision joints, rotary tables, and servo motors.

Agricultural & Construction Machinery:
Heavy-duty applications require robust performance.