7017 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7017 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.75 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
85 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
130 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
14.288 mm
Ball quantity
21
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
15210 lbf
Radial static load rating
14738 lbf
Limiting speed
19 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:
$ 818.9
/ each
In Stock
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7017 CD/HCP4A Bearing Product Overview & Core Advantages
The 7017 CD/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. This single-row bearing features a 15° contact angle and is supplied with a preload, making it ideal for supporting combined radial and axial loads in one direction. Its construction with a phenolic cage and ceramic balls enables superior high-speed performance and reduced rotational inertia. Manufactured to a P4 (ABEC-7) tolerance class, it guarantees precise running accuracy and reliable operation in demanding environments.
7017 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 7017 CD/HCP4A provides detailed technical specifications:
- 7017: Basic series designation (85mm bore, 130mm OD, 22mm width).
- C: Denotes a 15° contact angle.
- D: Indicates the bearing is supplied with a preload for enhanced rigidity.
- HC: Signifies the use of Hybrid Ceramic balls (ceramic balls with steel rings).
- P4A: Specifies the tolerance class P4 (ABEC-7), denoting very high precision.
7017 CD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The preloaded design and P4 tolerance class ensure minimal axial and radial play, providing exceptional system stiffness and running accuracy for precise positioning applications.
- Superior High-Speed Capability: The combination of a lightweight phenolic resin cage and low-density ceramic (Si3N4) balls significantly reduces centrifugal forces, allowing for a high limiting speed of 19,000 rpm.
- Enhanced Durability and Life: Ceramic balls are harder, smoother, and electrically insulating compared to steel, leading to reduced wear, longer service life, and resistance from electrical arcing damage.
- Optimized Load Capacity: The 15° contact angle is optimized to efficiently handle substantial combined loads, with a dynamic load rating of 15,210 lbf and a static load rating of 14,738 lbf.
7017 CD/HCP4A Bearing Typical Application Areas
This high-performance bearing is ideally suited for:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Instrumentation: High-speed measuring devices and optical scanners.
- High-Frequency Motors and Spindles: Electric motor spindles and other applications requiring high rotational speeds.
- Aerospace and Robotics: Actuators, rotor systems, and other critical motion components where weight, speed, and precision are paramount.
