7010 CD/HCP4AQBCA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7010 CD/HCP4AQBCA
Basic Information
System of measurement
Metric
Weight
0.86 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
80 mm
Outside diameter tolerance
-0.004mm to 0
Width
64 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
17550 lbf
Radial static load rating
21712 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7010 CD/HCP4AQBCA Bearing Product Overview & Core Advantages
The 7010 CD/HCP4AQBCA is a high-precision quadruplex matched bearing set designed for the most demanding applications. This angular contact ball bearing configuration in a back-to-back arrangement delivers exceptional system rigidity and running accuracy. Its core advantages include superior high-speed capability enabled by a phenolic cage and ceramic balls, and the ability to handle significant combined loads (radial and axial). The set is supplied pre-lubricated and pre-loaded to Extra Light (Class A) specifications, ensuring optimal performance and simplified installation for high-reliability machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7010 | Standard bore diameter (50 mm) and series designation. |
| CD | Indicates a duplex bearing with a specific internal clearance and preload. |
| HCP4A | Defines the tolerance class P4A (high precision), a 15° contact angle (C), and is part of a universally matched set (H). |
| QBC | Specifies the matched arrangement as Quadruplex Back-to-Back (four bearings in a back-to-back configuration). |
| A | Denotes the light preload classification. |
7010 CD/HCP4AQBCA Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Accuracy: The quadruplex back-to-back (QBC) arrangement creates an extremely rigid bearing system, ideal for applications where shaft deflection must be minimized. Combined with the P4A tolerance class, this ensures superior running accuracy and positional stability.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and ceramic balls (Si3N4) significantly reduces centrifugal forces, allowing for a very high limiting speed of 46,000 rpm. Ceramic balls also offer lower friction and reduced heat generation.
- Optimized Load Capacity: The 15° contact angle is optimized to handle substantial combined radial and axial loads simultaneously, making it suitable for complex loading conditions.
- Pre-Lubricated and Pre-Loaded: The bearings are supplied lubricated and with a precise extra light preload, eliminating the need for complex on-site adjustment and ensuring immediate, consistent performance from startup.
7010 CD/HCP4AQBCA Bearing Typical Application Areas
This precision bearing set is engineered for high-performance applications, including:
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Machining Centers
- Advanced Robotics and Automation
- Aerospace Actuation Systems
