7017 CD/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7017 CD/P4ADBB
Basic Information
System of measurement
Metric
Weight
1.79 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
44 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
24975 lbf
Radial static load rating
29025 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7017 CD/P4ADBB Bearing Product Overview & Core Advantages
The 7017 CD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement is preloaded to Light / Class B specifications, providing superior system stability and resistance to complex combined loads. Its P4A tolerance class ensures ultra-precise running, making it ideal for high-performance machinery where high rigidity and minimal runout are critical.
7017 CD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a duplex bearing in a back-to-back (DB) arrangement. This configuration provides high moment rigidity and is optimized to handle combined radial and axial loads. |
| P4A | Denotes an ultra-precision tolerance class with enhanced running accuracy requirements, surpassing ABEC 7 (P4) standards for applications demanding the highest level of performance. |
| DBB | Specifies the matched set as a Back-to-Back pair that is preloaded and ready for installation as a complete, high-rigidity unit. |
7017 CD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The duplex back-to-back (DB) design creates a wide effective spread, significantly increasing the system's resistance to moment loads and providing exceptional operational stiffness.
- Superior Load Capacity: Engineered with a 15° contact angle, this bearing is optimized to handle combined loads (simultaneous radial and axial forces) efficiently.
- Precision & High-Speed Capability: The phenolic resin cage offers excellent strength-to-weight ratio and guidance, contributing to smooth operation and enabling high rotational speeds up to 28,000 rpm.
- Preloaded for Immediate Performance: Supplied as a Light preload (Class B) matched set, the bearing assembly delivers precise shaft positioning and immediate high performance without requiring additional adjustment.
7017 CD/P4ADBB Bearing Typical Application Areas
This bearing is specified for high-demand applications where precision, speed, and rigidity are non-negotiable. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Where extreme accuracy and minimal vibration are required.
- High-Frequency Motors and Spindles: Used in PCB drilling and other high-RPM applications.
- Industrial Pumps and Compressors: For robust performance under demanding operational conditions.
