7016 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7016 CB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.86 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
125 mm
Outside diameter tolerance
-0.009mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
27
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
5962 lbf
Radial static load rating
5130 lbf
Limiting speed
26 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 706.33
/ each
In Stock
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7016 CB/HCP4A Bearing Product Overview & Core Advantages
The 7016 CB/HCP4A is a single-row angular contact ball bearing engineered for applications demanding ultra-high precision and exceptional performance. This metric bearing is distinguished by its P4 (ABEC-7) tolerance class, ensuring minimal dimensional variation for superior running accuracy. Its core advantage lies in its ability to accommodate high combined loads, particularly substantial axial loads in one direction, thanks to its specific 15° contact angle. Manufactured with a ceramic ball and phenolic cage combination, it is ideally suited for high-speed operation and offers excellent dimensional stability under thermal variations.
7016 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 7016 CB/HCP4A provides detailed technical specifications through its suffixes:
- 7016: Basic designation indicating a metric angular contact bearing with an 80mm bore, 125mm OD, and 22mm width.
- CB: Denotes a specific contact angle (15°) and internal clearance/geometry that is optimized for universal matching. When mounted in pairs, CB-designated bearings can be arranged in back-to-back (DB) or face-to-face (DF) configurations to handle combined loads effectively.
- HC: Signifies the use of Hybrid Ceramic components, specifically ceramic balls (Si3N4) running against steel rings. This reduces weight, friction, and heat generation, enabling higher speeds and longer service life.
- P4A: Indicates a very high precision tolerance class per ISO standards, equivalent to ABEC-7. The "A" suffix further specifies special requirements for dimensional and running accuracy, including tighter tolerances on bore, outside diameter, and width.
7016 CB/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a lightweight phenolic resin cage and hybrid ceramic balls significantly reduces centrifugal forces and friction, allowing the bearing to achieve a high limiting speed of 26,000 rpm. This makes it an ideal choice for high-speed spindles.
- Superior Rigidity and Load Capacity: The 15° contact angle is optimized to support high axial loads in one direction while also handling significant radial loads. The preload availability allows for adjustments to increase system stiffness and minimize axial/radial play.
- Thermal and Dimensional Stability: The phenolic cage offers excellent dimensional stability across the operating temperature range (-30°C to 110°C), resisting thermal expansion that could affect precision.
- Extended Service Life: Ceramic balls are harder and smoother than steel, leading to reduced wear. They are also electrically insulating and resistant to corrosion, contributing to enhanced reliability and longevity in demanding environments.
7016 CB/HCP4A Bearing Typical Application Areas
This high-precision bearing is designed for advanced machinery where accuracy, speed, and reliability are critical. Its primary applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and rotary units requiring high rigidity and positional accuracy.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instruments.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and other small, high-RPM applications.
