7017 CD/P4AQBCB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7017 CD/P4AQBCB
Basic Information
System of measurement
Metric
Weight
3.58 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
85 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.004mm to 0
Width
88 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°C to 110 °C
Radial dynamic load rating
40050 lbf
Radial static load rating
58500 lbf
Limiting speed
28 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
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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7017 CD/P4AQBCB Bearing Product Overview & Core Advantages
The 7017 CD/P4AQBCB is a precision angular contact ball bearing engineered for the most demanding applications. Its defining feature is its Quadruplex Back-to-Back (QBC) matched arrangement, which provides exceptional rigidity and stability under complex loading conditions. This bearing is designed to handle significant combined loads (radial and axial) simultaneously, making it ideal for high-precision, high-speed machinery. Manufactured to the stringent P4A tolerance class, it ensures superior running accuracy and consistent performance in critical operational environments.
7017 CD/P4AQBCB Bearing Model Code Explained, Specifications & Naming Convention
The model number 7017 CD/P4AQBCB provides detailed technical specifications:
- 7017: Basic series designation, indicating a metric angular contact ball bearing with an 85 mm bore, 130 mm OD, and 88 mm width.
- C: Denotes a 15° contact angle, optimized for high-speed operation with moderate axial load capacity.
- D: Indicates the bearing is supplied with a Light preload (Class B).
- P4A: Specifies the tolerance class, representing very high precision levels for both dimensional and running accuracy.
- QBCB: Defines the matched arrangement as a Quadruplex Back-to-Back set of four bearings.
7017 CD/P4AQBCB Bearing Structural Features & Performance Benefits
- Unmatched Rigidity & Stability: The Quadruplex Back-to-Back (QBC) arrangement creates an extremely rigid bearing system, effectively resisting moment loads and maintaining shaft positioning under heavy combined loads.
- High-Speed Capability: The 15° contact angle and phenolic cage are optimized for high-speed operation, contributing to a limiting speed of 28,000 rpm. This cage material offers excellent strength-to-weight ratio and operates smoothly at high velocities.
- Superior Precision: Conforming to the P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications requiring extreme accuracy.
- High Load Capacity: With a dynamic load rating of 40,050 lbf and a static load rating of 58,500 lbf, this bearing set is built to withstand significant radial and axial loads.
- Premium Materials: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and a long operational life.
7017 CD/P4AQBCB Bearing Typical Application Areas
This high-precision quadruplex bearing set is ideally suited for heavy-duty, high-speed machinery where maximum rigidity and accuracy are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Spindles.
- Industrial Pumps and Compressors.
- Advanced Robotics and Automation systems.
