7017 CD/P4ATBTA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7017 CD/P4ATBTA
Basic Information
System of measurement
Metric
Weight
2.69 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
66 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
32850 lbf
Radial static load rating
44100 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
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/P4ATBTA Bearing Product Overview & Core Advantages
The 7017 CD/P4ATBTA is a precision angular contact ball bearing designed for the most demanding applications. Its defining feature is its Triplex Back-to-Back (TBT) matched arrangement, consisting of three preloaded bearings. This configuration delivers exceptional system rigidity and stability, making it ideal for machine tool spindles and other high-precision machinery. The bearing is manufactured to a P4A tolerance class, ensuring superior running accuracy, and is pre-lubricated for immediate use. It is engineered to handle combined loads efficiently, offering high limiting speeds and reliable performance.
7017 CD/P4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7017 | Basic bearing series and size designation (85mm bore, 130mm OD). |
| CD | Specifies a 15° contact angle, optimized for high-speed operation and radial load capacity. |
| P4A | Indicates a high-precision tolerance class with enhanced running accuracy and dimensional stability. |
| TBT | Denotes a Triplex Back-to-Back matched set of three bearings, providing maximum system rigidity. |
| A | Signifies an Extra Light preload, which minimizes friction and heat generation at high speeds. |
7017 CD/P4ATBTA Bearing Structural Features & Performance Benefits
- Unmatched Rigidity: The Triplex Back-to-Back (TBT) arrangement creates an exceptionally stiff bearing system, crucial for minimizing deflection under heavy combined loads and ensuring machining accuracy.
- High-Speed Capability: The 15° contact angle and light preload are optimized for high rotational speeds, while the phenolic cage offers low weight and excellent performance at the specified limiting speed.
- Precision Performance: Manufactured to P4A tolerance standards with tight dimensional controls on the bore diameter, outside diameter, and width, guaranteeing smooth, quiet, and precise operation.
- Robust Load Capacity: With high dynamic and static load ratings, this bearing set is built to withstand significant radial and axial forces encountered in demanding industrial environments.
- Ready-to-Install: The bearing is pre-lubricated, simplifying installation and ensuring immediate, reliable performance right out of the box.
7017 CD/P4ATBTA Bearing Typical Application Areas
This precision angular contact ball bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: For CNC machining centers, grinders, and lathes where high rigidity and running accuracy are paramount.
- High-Frequency Spindles: In PCB drilling and precision engraving machines.
- Precision Rotary Tables: Used in indexing and positioning systems.
- High-Speed Automation: Robotics and specialized machinery requiring precise motion control.
