7007 ACD/P4ATBTC
7000 Series Super Precision Angular Contact Ball Bearings
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7007 ACD/P4ATBTC Bearing Product Overview & Core Advantages
The 7007 ACD/P4ATBTC is a precision angular contact ball bearing configured as a matched triplex back-to-back (TBT) set. Engineered for applications demanding exceptional rotational accuracy and rigidity, this bearing arrangement is specifically designed to handle combined radial and axial loads simultaneously. Manufactured to P4A tolerance class, it guarantees superior running accuracy and dimensional stability. The moderate preload (Class C) eliminates internal clearance, ensuring high system stiffness and precise shaft positioning, making it ideal for high-performance spindles and precision machinery.
7007 ACD/P4ATBTC Bearing Model Code Explained, Specifications & Naming Convention
- 7007: Basic bearing series with 35mm bore, 62mm OD, and 14mm width.
- ACD: Angular Contact design with a 25° contact angle.
- P4A: Indicates a high-precision tolerance class superior to ABEC-7, ensuring minimal runout and vibration.
- TBT: Denotes the bearing is supplied as a Triplex Back-to-Back matched set of three bearings, optimized for maximum rigidity and moment load capacity.
- C: Specifies a Moderate Preload (Class C) for enhanced stiffness in high-speed applications.
7007 ACD/P4ATBTC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The triplex back-to-back configuration creates a highly rigid bearing system capable of supporting substantial combined loads and resisting moment loads effectively. The 25° contact angle is optimized for axial load carrying capacity while maintaining good radial performance.
Precision Performance: Manufactured to P4A tolerance standards with a phenolic resin cage, this bearing ensures smooth operation at high speeds with minimal vibration. The chrome steel construction of rings and balls provides excellent wear resistance and durability.
High-Speed Capability: With a limiting speed of 56,000 rpm and optimized internal geometry, this bearing is engineered for high-speed applications. The phenolic cage offers excellent strength-to-weight ratio and operates effectively at high rotational speeds.
Pre-Lubricated & Ready for Installation: The bearing comes pre-lubricated and is suitable for operating temperatures from -30°C to 110°C, ensuring immediate operational readiness and reliable performance.
7007 ACD/P4ATBTC Bearing Typical Application Areas
This high-precision triplex bearing set is specifically designed for demanding applications including:
- Machine Tool Spindles - High-speed machining centers and grinding spindles
- Precision Robotics - Joint and arm mechanisms requiring high rigidity
- Aerospace Systems - Guidance systems and flight control mechanisms
- Medical Equipment - High-speed dental handpieces and surgical tools
- Test & Measurement Equipment - Coordinate measuring machines and precision instruments
