S7215 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7215 ACD/P4A
Basic Information
System of measurement
Metric
Weight
1.23 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.009mm to 0
Width
25 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
17
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
15502 lbf
Radial static load rating
13162 lbf
Limiting speed
9 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1004.98
/ each
In Stock
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S7215 ACD/P4A Bearing Product Overview & Core Advantages
The S7215 ACD/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single-row bearing with a 25° contact angle and P4 (ABEC-7) tolerance class, it is engineered to handle high-speed operation and combined loads. Its key advantages include high axial load capacity in one direction, superior running accuracy, and excellent high-speed performance, making it ideal for high-precision spindles and other critical machinery.
S7215 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Indicates a 25° contact angle and optimized internal design for high-speed and high-precision applications. |
| P4A | Denotes a P4 tolerance class (equivalent to ABEC-7), ensuring extremely tight dimensional and running accuracy for precision machinery. |
S7215 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4 tolerance class with a 25° contact angle, this bearing provides high rigidity and exceptional running accuracy, essential for minimizing deflection in precision spindles.
- Optimized Load Capacity: The angular contact design efficiently supports combined radial and axial loads in one direction, with a high dynamic load rating of 15,502 lbf.
- Superior High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to a high limiting speed of 9,000 rpm and stable operation at high velocities.
- Pre-Lubricated & Ready-to-Install: The bearing comes lubricated from the factory, simplifying installation and ensuring immediate, reliable performance.
- Durable Material Construction: Components made from chrome steel offer high wear resistance and durability, supporting a long service life under demanding conditions.
S7215 ACD/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers.
- High-Speed Machining Centers: Applications requiring exceptional accuracy and speed.
- Precision Instrumentation: Medical devices, optical scanners, and measuring equipment.
- High-Frequency Motors & Spindles: Electric motor spindles and other high-RPM drives.
