S7017 ACE/P4ADT
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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S7017 ACE/P4ADT Bearing Product Overview & Core Advantages
The S7017 ACE/P4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This matched duplex tandem (DT) arrangement provides superior axial rigidity and is capable of handling high combined loads. Manufactured to P4A tolerance class, it ensures minimal runout and consistent performance in high-speed, high-precision environments. The sealed design and pre-lubrication contribute to long service life with minimal maintenance.
S7017 ACE/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
- S7017: Basic bearing series and size designation (85mm bore, 130mm OD, 44mm width).
- ACE: Designates specific internal geometry and contact angle (25°) optimized for high rigidity and thrust capacity.
- P4A: Indicates a super-precision tolerance class, exceeding ABEC 7 standards, for applications requiring extreme running accuracy.
- DT: Denotes a Duplex Tandem preloaded set, where two bearings are mounted together to significantly increase axial load capacity and stiffness in one direction.
S7017 ACE/P4ADT Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex tandem arrangement and 25° contact angle create an exceptionally rigid bearing system, capable of supporting high radial and substantial one-direction axial loads simultaneously.
High-Speed Performance: The phenolic resin cage is lightweight and robust, enabling stable operation at high rotational speeds, with a limiting speed of 28,000 rpm.
Precision & Accuracy: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, ensuring precise shaft positioning and smooth operation.
Sealed & Pre-Lubricated: The integral seals protect against contamination, and the bearing is pre-lubricated with grease, making it ready for immediate use and suitable for a wide operating temperature range.
S7017 ACE/P4ADT Bearing Typical Application Areas
The S7017 ACE/P4ADT is ideally suited for high-performance machinery where precision, 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 stages.
- Aerospace Systems: Gyroscopes, actuators, and auxiliary power units.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
