7010 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7010 CDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.22 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
16 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
6660 lbf
Radial static load rating
5400 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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7010 CDGA/HCP4A Bearing Product Overview & Core Advantages
The 7010 CDGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single bearing features an extra light preload (Class A) and is manufactured to P4A tolerance class for superior running accuracy. Its design is optimized to handle combined loads, offering high rigidity and operational stability. The use of ceramic balls and a phenolic cage contributes to its capabilities as a high-speed bearing, enabling a limiting speed of 41,000 rpm. It is universally matchable (SU), allowing for precise arrangement in sets of three to create a pre-loaded, rigid system.
7010 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7010 | Standard bearing series number, indicating a 50 mm bore and 80 mm outside diameter. |
| C | Specifies a 15° contact angle, optimized for high-speed operation and handling combined loads. |
| DG | Indicates the bearing is universally matchable (SU) and can be paired in any combination to achieve a specific preload. |
| A | Denotes an extra light preload (Class A), minimizing friction and heat generation for high-speed applications. |
| HCP4A | Signifies the bearing is supplied as part of a matched set (3 bearings) and manufactured to the P4A tolerance class, ensuring extremely tight dimensional and running accuracy. |
7010 CDGA/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance class with an extra light preload, this bearing provides exceptional rotational accuracy and system stiffness, minimizing deflection under load.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic resin cage allows for a very high limiting speed of 41,000 rpm, reducing friction and heat generation.
- Optimized Load Capacity: The 15° contact angle is ideal for supporting significant combined (radial and axial) loads, making it suitable for complex loading conditions.
- Matched Set Configuration (SU): As a universally matchable bearing, it can be supplied in pre-matched sets of three. This ensures optimal preload distribution and high rigidity when mounted in a duplex arrangement (DB, DF, or DT).
7010 CDGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and milling heads requiring high precision and rigidity.
- Precision Instrumentation: High-performance measuring equipment and coordinate measuring machines (CMM).
- High-Speed Motors and Drives: Spindles for PCB drilling, dental handpieces, and other applications demanding extreme rotational speeds.
- Aerospace and Defense Systems: Gyroscopes, radar systems, and other critical components where reliability and accuracy are paramount.
