S7215 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7215 CD/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
15 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
17
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
16088 lbf
Radial static load rating
13950 lbf
Limiting speed
10 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:
$ 1004.96
/ each
In Stock
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S7215 CD/P4A Bearing Product Overview & Core Advantages
The S7215 CD/P4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. As a single-row bearing with a 15° contact angle, it is optimized to handle significant combined loads—simultaneously supporting high radial loads and axial loads in one direction. Its P4 (ABEC-7) tolerance class ensures ultra-precise running, making it ideal for high-speed spindles and other high-reliability machinery. The bearing comes pre-lubricated and sealed, offering a compact, ready-to-install solution for precision engineering.
Model Code Breakdown
| Suffix Code | Technical Meaning |
|---|---|
| S7215 | Basic bearing series designation with 75mm bore. |
| CD | Indicates a specific contact angle (15°) and internal design optimized for high rigidity and load capacity. |
| P4A | Denotes a high-precision tolerance class (P4/ABEC-7) with specific running accuracy requirements. |
S7215 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The optimized 15° contact angle and robust internal geometry enable the bearing to sustain high radial dynamic load ratings (16,088 lbf) and substantial one-direction axial loads, providing stable and rigid support for spindles.
- Superior High-Speed Performance: The lightweight, durable phenolic resin cage minimizes centrifugal forces and ensures stable operation at high rotational speeds, with a limiting speed of 10,000 rpm.
- Precision Engineering: Manufactured to P4 (ABEC-7) tolerance standards with tight dimensional control on bore, outside diameter, and width, guaranteeing exceptional running accuracy and minimal vibration.
- Sealed and Lubricated for Life: As a sealed and pre-lubricated unit, it is protected from contamination and is maintenance-free within its specified operating temperature range (-30°C to 110°C).
S7215 CD/P4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Where high rotational accuracy and rigidity are critical.
- High-Frequency Motors and Spindles: Applications demanding low vibration and high-speed capability.
- Medical and Laboratory Equipment: Centrifuges and other precision instruments.
