S7017 ACE/HCP4ATBTA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7017 ACE/HCP4ATBTA
Basic Information
System of measurement
Metric
Weight
2.56 kg
Tolerance class
P4A
Seal type
Sealed
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
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
26
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
15795 lbf
Radial static load rating
18675 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
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
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S7017 ACE/HCP4ATBTA Bearing Product Overview & Core Advantages
The S7017 ACE/HCP4ATBTA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and speed performance. This matched triplex set in a back-to-back (TBT) arrangement delivers superior stiffness and moment load capacity. Featuring a P4A tolerance class, ceramic balls, and a phenolic cage, it is engineered for high-speed operation and long-term reliability under combined radial and axial loads. The pre-lubricated and sealed design ensures consistent performance with minimal maintenance.
Model Code Breakdown
The S7017 ACE/HCP4ATBTA model designation provides detailed technical specifications:
- S7017: Basic bearing series and size (85mm bore, 130mm OD)
- A: 25° contact angle for optimal axial load capacity
- CE: Ceramic balls for reduced weight, higher speed, and longer life
- HC: Phenolic resin cage for high-speed capability and reduced friction
- P4A: High-precision tolerance class exceeding ABEC 7 standards
- TBT: Triplex Back-to-Back matched set arrangement for maximum rigidity
S7017 ACE/HCP4ATBTA Bearing Structural Features & Performance Benefits
- Exceptional Rigidity: The triplex back-to-back (TBT) arrangement of three bearings creates an extremely rigid bearing system capable of withstanding heavy moment loads and complex loading conditions.
- High-Speed Performance: The combination of lightweight ceramic balls and a phenolic resin cage significantly reduces centrifugal forces, enabling a high limiting speed of 28,000 rpm.
- Superior Load Capacity: The 25° contact angle and robust construction provide excellent radial and axial load ratings (15,795 lbf dynamic / 18,675 lbf static).
- Precision & Accuracy: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, ensuring precise shaft running and system accuracy.
- Sealed & Lubricated for Life: The sealed design with factory-applied grease protects against contamination and provides reliable operation within a temperature range of -30°C to 110°C.
S7017 ACE/HCP4ATBTA Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and rigidity are critical:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Robotics: Arm joints and high-accuracy positioning systems
- Aerospace & Defense Systems: Gyroscopes, radar systems, and auxiliary power units
- High-Frequency Motors: Spindles for PCB drilling and semiconductor manufacturing equipment
