7002 CE/HCP4ADBAGMM0
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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Materials
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7002 CE/HCP4ADBAGMM0 Bearing Product Overview & Core Advantages
The 7002 CE/HCP4ADBAGMM0 is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex back-to-back (DB) arrangement bearing set is preloaded to Extra Light / Class A specifications, providing superior running accuracy and rigidity. Featuring a ceramic ball construction and P4A tolerance class, it is engineered to handle combined loads with high reliability, making it ideal for high-speed, high-precision machinery where minimal deflection and thermal stability are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7002 | Basic bearing series and size designation (15mm bore, 32mm OD) |
| CE | Ceramic balls (typically Silicon Nitride), offering reduced weight, higher stiffness, and superior performance at high speeds |
| HC | Phenolic resin cage, providing excellent strength-to-weight ratio and low friction at high rotational speeds |
| P4A | High-precision tolerance class exceeding ABEC 7 standards, ensuring exceptional running accuracy and dimensional stability |
| DB | Duplex Back-to-Back arrangement, providing high moment rigidity and optimal preload configuration |
| AGMM0 | Specific internal design and grease lubrication for high-speed operation |
7002 CE/HCP4ADBAGMM0 Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The duplex back-to-back arrangement with Class A preload creates a highly rigid bearing system that minimizes axial and radial play, ensuring exceptional positioning accuracy and stability under load.
Enhanced Speed Capability: The combination of ceramic balls and a phenolic resin cage significantly reduces centrifugal forces and friction, enabling a limiting speed of 140,000 rpm. This makes it an ideal high-speed bearing solution.
Superior Load Capacity: With a 15° contact angle and optimized internal geometry, this bearing efficiently handles combined radial and axial loads, offering a dynamic load rating of 1609 lbf and static load rating of 855 lbf.
Thermal Stability & Longevity: The open design with grease lubrication operates effectively within a temperature range of -30°C to 110°C. The ceramic balls exhibit lower thermal expansion compared to steel, contributing to consistent performance across the operating range.
7002 CE/HCP4ADBAGMM0 Bearing Typical Application Areas
This high-precision bearing set is specifically designed for applications demanding the utmost in accuracy, speed, and rigidity, including:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision lathes
- High-Speed Motors & Spindles: PCB drilling spindles, dental handpieces, and turbine instrumentation
- Precision Instrumentation: Optical scanners, measuring equipment, and laboratory apparatus
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and actuation mechanisms
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
