S7017 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7017 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.76 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
85 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.009mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
21
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
14332 lbf
Radial static load rating
13950 lbf
Limiting speed
11 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 982.69
/ each
In Stock
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S7017 ACD/HCP4A Bearing Product Overview & Core Advantages
The S7017 ACD/HCP4A is a precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is distinguished by its ceramic balls and P4 (ABEC-7) tolerance class, ensuring ultra-low runout and smooth operation. It is pre-lubricated and sealed for immediate use, offering a high limiting speed and the ability to handle significant combined loads due to its 25° contact angle. Its compact design and high rigidity make it an ideal solution for high-speed, high-precision spindles and machinery.
S7017 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S7017 ACD/HCP4A provides detailed technical specifications:
- S7017: Denotes the bearing series and size (85mm bore, 130mm OD, 22mm width).
- A: Signifies a 25° contact angle, optimized for high axial load capacity.
- CD: Indicates a matched set of two bearings arranged in a duplex configuration (face-to-face, back-to-back, or tandem) to achieve specific preload and rigidity characteristics.
- HC: Stands for Hybrid Ceramic, specifying that the rolling elements are ceramic balls, which reduce weight, friction, and heat generation while increasing speed capability.
- P4A: Defines the tolerance class. P4 is equivalent to ABEC-7, a super-precision grade for exceptional running accuracy. The A suffix indicates specific tolerance and fit requirements for the bearing's internal geometry.
S7017 ACD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, allowing for a higher limiting speed (11,000 rpm). This construction also provides superior electrical resistance, reduced thermal expansion, and extended service life.
- Super-Precision Performance: Manufactured to P4 tolerance, this bearing ensures minimal vibration and extreme rotational accuracy, which is critical for applications like machine tool spindles.
- High Load Capacity & Rigidity: The 25° contact angle is optimized to support substantial axial loads in one direction as well as combined (radial and axial) loads. When used in a preloaded duplex arrangement (CD), the bearing system delivers very high rigidity.
- Phenolic Resin Cage: The phenolic cage offers excellent strength-to-weight ratio and operates smoothly at high speeds with minimal friction.
- Sealed & Lubricated for Life: The integral seals protect against contamination and retain the factory-applied high-performance grease, making the bearing maintenance-free within its specified temperature range of -30°C to 110°C.
S7017 ACD/HCP4A Bearing Typical Application Areas
This high-speed precision bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving, and routing machines.
- High-Frequency Motors and Electric Spindles.
- Medical Equipment: High-speed dental handpieces and centrifuges.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and auxiliary power units.
