7017 CD/P4ATBTB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7017 CD/P4ATBTB
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
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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7017 CD/P4ATBTB Bearing Product Overview & Core Advantages
The 7017 CD/P4ATBTB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex back-to-back (TBT) matched set consists of three individual bearings, preloaded to Light / Class B specifications, delivering superior system stability and resistance to complex combined loads. Manufactured to a P4A tolerance class, it offers extremely tight dimensional control for high-performance machinery. Its open design, pre-lubricated for immediate operation, is optimized for high-speed applications up to 28,000 rpm.
Model Code Breakdown
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 7017 | Basic Series & Size | Standard metric series bearing with 85 mm bore, 130 mm OD, and 66 mm width. |
| CD | Contact Angle & Design | Specifies a 15° contact angle, optimized for supporting high axial loads in combination with radial loads. |
| P4A | Tolerance Class | Denotes a high-precision bearing with extremely tight running accuracy and dimensional tolerances. |
| TBT | Matched Arrangement | Indicates a Triplex Back-to-Back set of three bearings, providing maximum rigidity and moment load capacity. |
7017 CD/P4ATBTB Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Moment Load Capacity: The triplex back-to-back (TBT) arrangement creates a highly rigid bearing system capable of withstanding significant moment loads and complex combined loads, making it ideal for applications where shaft deflection must be minimized.
- Optimized for High-Speed Operation: The phenolic cage offers low weight and excellent performance at high speeds, contributing to the bearing's high limiting speed of 28,000 rpm. The 15° contact angle provides a balanced capability for high-speed radial and axial loads.
- High-Precision Performance: Manufactured to P4A tolerance class with a bore and outside diameter tolerance of -0.004mm to 0, this bearing ensures precise running accuracy, low vibration, and consistent performance in critical applications.
- Robust Load Ratings: With a dynamic load rating of 32,850 lbf and a static load rating of 44,100 lbf, this bearing set is engineered for long service life under demanding load conditions.
- Preloaded for Immediate Use: The set is supplied with a Light / Class B preload, eliminating the need for complex adjustment during installation and ensuring immediate, stable performance.
7017 CD/P4ATBTB Bearing Typical Application Areas
This precision bearing set is specifically designed for high-performance machinery where accuracy, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Especially in high-torque, high-speed industrial drives.
- Industrial Pumps and Compressors: For handling significant axial and radial loads.
- Robotic Arm Joints and Precision Rotary Axes: Where high rigidity and positional accuracy are critical.
