7015 ACD/P4ATBTB

The model number 7015 ACD/P4ATBTB provides detailed technical specifications:

• 7015: Basic bearing series, indicating a 75 mm bore and 115 mm outside diameter.
• A: Denotes a 25° contact angle, optimized for carrying high axial loads.
• CD: Signifies a triplex (3-bearing) back-to-back (DB) matched set.
• P4A: Indicates a super-precision tolerance class with enhanced running accuracy and dimensional stability.
• TBT: Confirms the Triplex Back-to-Back arrangement of the matched set.

Key features derived from the code include the open seal type for minimal friction and the use of a phenolic cage for high-speed capability.

The design of the 7015 ACD/P4ATBTB delivers distinct performance advantages:

• High Rigidity & Stability: The triplex back-to-back arrangement creates a very rigid bearing system that effectively resists moment loads and shaft deflection, crucial for maintaining precision under heavy combined loads.
• Superior Load Capacity: The 25° contact angle and triple-row configuration provide a high dynamic (24,300 lbf) and static (31,500 lbf) load rating, enabling reliable performance in demanding conditions.
• High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 28,000 rpm. The open design allows for efficient lubrication management.
• Precision Operation: The P4A tolerance class ensures tight control over bearing dimensions and running accuracy, resulting in smooth, low-vibration, and low-noise operation.

This high-precision, high-rigidity bearing set is engineered for advanced industrial applications, including:

• Machine Tool Spindles: High-speed milling, grinding, and turning centers.
• Precision Gearboxes and Robotic Drives requiring high positional accuracy.
• High-Frequency Motors and Spindles for PCB drilling and semiconductor manufacturing.
• Medical Equipment such as high-speed dental handpieces and imaging scanner gantries.