7017 CD/HCP4ATBTB
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7017 CD/HCP4ATBTB Bearing Product Overview & Core Advantages
The 7017 CD/HCP4ATBTB is a precision angular contact ball bearing designed for the most demanding applications. This triplex matched set, arranged in a Back-to-Back (TBT) configuration, delivers exceptional system rigidity and stability. Its light preload (Class B) ensures optimal rolling element guidance, minimizing deflection under complex combined loads. Manufactured to an ultra-P4A tolerance class and featuring ceramic balls, this bearing is engineered for superior high-speed performance and long-term operational accuracy in high-precision machinery.
Model Code Breakdown
- 7017: Basic series and size designation (85mm bore, 130mm OD).
- CD: Indicates a duplex bearing with a specific internal design and preload. In this context, it is part of the matching specification for the set.
- HC: Denotes Hybrid Ceramic construction, featuring steel rings and ceramic balls.
- P4A: Specifies a tolerance class superior to ABEC 7/ISO P4, ensuring extremely tight dimensional and running accuracy.
- TBT: Identifies the bearing as part of a Triplex Back-to-Back matched set of three bearings.
7017 CD/HCP4ATBTB Bearing Structural Features & Performance Benefits
Unmatched Rigidity and Load Capacity: The triplex back-to-back arrangement creates a highly rigid bearing system capable of withstanding significant combined radial and axial loads from both directions, making it ideal for applications with high overturning moments.
Superior High-Speed Capability: The combination of a lightweight phenolic cage, hybrid ceramic construction (which reduces centrifugal forces and operates with less friction and heat), and factory-applied lubrication enables a high limiting speed of 28,000 rpm.
Extended Service Life and Reliability: Ceramic balls are harder, lighter, and more resistant to wear and corrosion than steel, significantly increasing bearing life. The P4A precision ensures smooth, quiet, and vibration-free operation, which is critical for spindle applications.
7017 CD/HCP4ATBTB Bearing Typical Application Areas
This high-performance matched bearing set is primarily used in applications requiring the highest levels of precision, speed, and rigidity, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Other high-performance industrial machinery where rotational accuracy is paramount.
