7207 CD/P4AQBCC

• 7207: Basic series designation (35mm bore, 72mm OD).
• C: Denotes a 15° contact angle, optimized for high-speed applications.
• D: Indicates the bearing is part of a matched set with specific preload.
• /P4A: Specifies the tolerance class (P4A), indicating very high precision levels for both bore and outside diameter.
• QBCC: Defines the matched arrangement.
  • Q: Quadruplex (set of 4 bearings).
  • BC: Back-to-Back arrangement.
  • C: Indicates a Moderate preload (Class C).

Unmatched Rigidity and Load Capacity: The quadruplex back-to-back configuration creates a highly rigid bearing system that effectively resists moment loads and shaft deflection. This setup significantly increases the radial dynamic load rating (19,170 lbf) and static load rating (19,462 lbf) of the assembly compared to a single bearing.

High-Speed Capability: The combination of the 15° contact angle, phenolic cage, and precision P4A manufacturing enables a high limiting speed of 41,000 rpm. The phenolic cage is lightweight and exhibits excellent performance at high rotational speeds.

Precision and Stability: Manufactured to P4A tolerance class with tight dimensional controls on bore, outside diameter, and width, this bearing set ensures minimal runout and consistent performance, which is vital for applications like machine tool spindles.

Pre-lubricated and Open Design: The bearing comes lubricated and with an open (non-shielded) design, making it suitable for systems where the bearing will be integrated into a centralized lubrication system for optimal heat dissipation and long service life within its specified temperature range of -30°C to 110°C.

This high-precision, high-rigidity bearing set is ideally suited for applications requiring extreme accuracy and stability under heavy loads and high speeds.

• Machine Tool Spindles (High-speed milling, grinding, and turning centers)
• Precision Gearboxes
• High-Frequency Motors and Spindles
• Industrial Pumps and Compressors
• Aerospace and Defense Actuation Systems