S7213 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7213 ACDGA/P4A
Basic Information
System of measurement
Metric
Weight
1.03 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.004mm to 0
Width
23 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
15
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
14332 lbf
Radial static load rating
11475 lbf
Limiting speed
36 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7213 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7213 ACDGA/P4A is a high-precision double row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. This sealed bearing features an extra light preload (Class A) and is supplied as a universal matchable single bearing, designed to handle combined radial and axial loads simultaneously. Manufactured to the stringent P4A tolerance class, it offers superior running accuracy, making it ideal for high-speed spindles and other precision machinery where reliability and performance are critical.
S7213 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| ACD | Angular Contact, Double Row Design | Enables high rigidity and capacity for combined loads. |
| GA | Extra Light Preload (Class A) | Minimizes deflection and ensures smooth, precise operation at high speeds. |
| P4A | High Precision Tolerance Class | Guarantees tight dimensional and running accuracy for superior performance. |
S7213 ACDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design with a 25° contact angle provides robust support, significantly increasing bearing rigidity and enabling it to sustain substantial combined radial and axial loads.
- Optimized High-Speed Performance: The lightweight phenolic cage and precision-ground chrome steel components reduce centrifugal forces and friction, contributing to a high limiting speed of 36,000 rpm.
- Sealed & Pre-lubricated for Longevity: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is effectively maintenance-free throughout its service life within the specified temperature range.
- Precision Engineering: Adherence to the P4A tolerance class ensures minimal runout and vibration, which is critical for applications requiring extreme accuracy.
S7213 ACDGA/P4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Grinding & Milling Heads
- Precision Robotics & Automation Equipment
- High-Frequency Motors & Spindles
