71803 CDGA/P4

• 71803: Basic designation indicating a metric, super-precision bearing with a 17mm bore and 26mm outside diameter.
• C: Signifies a 15° contact angle, optimized for high-speed applications and moderate axial loads.
• D: Indicates the bearing is supplied with an Extra Light (Class A) preload for enhanced rigidity and precise rotational accuracy.
• G: Denotes a Phenolic Resin Cage, which is lightweight and contributes to superior high-speed performance and reduced friction.
• A: Specifies that the bearing is Universal Matchable (SU), allowing it to be mounted in any combination (DB, DF, DT) with other SU bearings to achieve specific preload and stiffness characteristics.
• /P4: Defines the tolerance class, indicating ultra-precise dimensional and running accuracy per ISO standards.

The 71803 CDGA/P4's performance is derived from its meticulous design and material selection. The single-row angular contact design with a 15° contact angle provides excellent support for combined radial and axial loads. The use of a phenolic resin cage ensures low inertia and excellent performance at high rotational speeds, directly contributing to the high limiting speed. The extra light preload eliminates internal clearance, resulting in superior shaft positioning accuracy and high system rigidity, which is critical for minimizing vibration and runout in precision machinery. Manufactured from high-grade chrome steel for both rings and balls, the bearing ensures long-term durability and consistent performance.

This high-precision bearing is engineered for the most demanding applications, including:

• Machine Tool Spindles: High-speed milling, grinding, and turning centers.
• Precision Spindles: PCB drilling and routing spindles.
• High-Speed Motors: Motors for robotics and aerospace applications.
• Medical Equipment: High-speed handpieces and dental drills.
• Test & Measurement Equipment: Applications requiring minimal rotational error.