S7011 CE/HCP4ATBTC
Hybrid Ceramic Super Precision Bearings
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S7011 CE/HCP4ATBTC Bearing Product Overview & Core Advantages
The S7011 CE/HCP4ATBTC is a super-precision angular contact ball bearing designed for the most demanding applications. This metric bearing is supplied as a matched triplex set in a Back-to-Back (TBT) arrangement, providing exceptional system rigidity and stability. Its core advantages include an extremely high limiting speed of 46,000 rpm, the ability to handle significant combined loads, and outstanding operational accuracy due to its P4A tolerance class. The use of ceramic balls and phenolic cage further enhances its performance in high-speed, high-temperature environments, making it an ideal choice for ultra-precise spindles.
S7011 CE/HCP4ATBTC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7011 | Basic bearing designation (55mm bore, 90mm OD, 54mm width) |
| CE | Ceramic balls (Silicon Nitride), offering reduced centrifugal force, lower friction, and extended service life at high speeds. |
| HC | Phenolic Resin Cage, providing excellent strength-to-weight ratio and superior guidance in high-speed applications. |
| P4A | Tolerance Class, denoting ultra-precision running accuracy and dimensional stability beyond standard ABEC 7 / ISO P4. |
| TBT | Triplex Back-to-Back matched set. Three bearings are selectively matched and preloaded to function as a single, highly rigid unit. |
| C | Moderate Preload, optimized for high-speed operation while providing excellent rigidity and rotational accuracy. |
S7011 CE/HCP4ATBTC Bearing Structural Features & Performance Benefits
Unmatched Rigidity and Stability: The Triplex Back-to-Back (TBT) arrangement creates a statically determinate bearing system that provides exceptional resistance to moment loads and shaft deflection, ensuring maximum system stiffness.
Superior High-Speed Capability: The combination of lightweight ceramic balls and a phenolic resin cage significantly reduces centrifugal forces and inertial drag, enabling stable operation at the ultra-high limiting speed of 46,000 rpm.
High Load Capacity: With a 15° contact angle and a dynamic load rating of 8190 lbf, this bearing set is engineered to handle significant combined radial and axial loads simultaneously.
Ultra-Precision Performance: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for achieving the highest levels of machining and positioning accuracy.
Optimized for Precision Lubrication: The bearing comes grease lubricated and sealed from the factory, ready for installation in precision spindle assemblies that require controlled, clean lubrication.
S7011 CE/HCP4ATBTC Bearing Typical Application Areas
This super-precision triplex bearing set is specifically designed for high-performance machinery requiring extreme speed, rigidity, and accuracy.
- High-Frequency CNC Machining Centers and PCB Drilling Spindles
- Precision Grinding Spindles
- High-speed Robotic Drives and Direct-Drive Motors
- Aerospace test equipment and auxiliary power units
- Advanced Medical Device manufacturing equipment
