7017 CDGA/VQ253

• 7017: Basic series designation; 85mm bore, 130mm OD, 22mm width.
• C: Denotes a 15° contact angle.
• DG: Indicates a Universal Matchable (SU) bearing. Two bearings can be paired in a "back-to-back" (DB) or "face-to-face" (DF) arrangement.
• A: Signifies an Extra Light preload class.
• VQ253: A manufacturer-specific suffix, typically indicating a special process or a specific high-performance phenolic resin cage.

The performance of the 7017 CDGA/VQ253 is derived from its meticulous construction. The phenolic resin cage contributes to excellent high-speed performance, low friction, and reduced weight, supporting the bearing's limiting speed of 28,000 rpm. The P4A super-precision tolerance ensures minimal runout and vibration, which is essential for applications requiring high rotational accuracy. The universal matching capability provides design engineers with flexibility to create high-rigidity bearing sets capable of handling complex load conditions. Manufactured from chrome steel for both rings and balls, it offers a high dynamic load rating of 15,210 lbf and reliable operation within a temperature range of -30°C to 110°C.

This bearing is predominantly used in high-performance machinery where precision and speed are paramount. Key applications include:

• Machine Tool Spindles: For milling, grinding, and turning centers.
• High-Frequency Motors and Precision Spindles.
• Aerospace & Defense Systems: Gyroscopes, radar equipment.
• Medical Equipment: High-speed dental handpieces, imaging devices.