S7010 ACEGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7010 ACEGB/P4A
Basic Information
System of measurement
Metric
Weight
0.26 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
80 mm
Outside diameter tolerance
-0.004mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3330 lbf
Radial static load rating
2250 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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S7010 ACEGB/P4A Bearing Product Overview & Core Advantages
The S7010 ACEGB/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As a single bearing with Universal Matchable (SU) designation, it can be precisely paired with another identical bearing to form a preloaded duplex set, delivering superior performance under combined loads. Its P4A tolerance class ensures ultra-precise dimensions and running accuracy, making it ideal for high-speed spindles and other precision machinery where reliability is critical.
S7010 ACEGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7010 | Basic bearing series and size designation (50mm bore, 80mm OD, 16mm width). |
| AC | 25° contact angle, optimized for carrying significant axial loads in one direction. |
| E | Optimized internal design for enhanced load capacity and performance. |
| GB | Light preload (Class B), which increases bearing rigidity and minimizes axial/radial play for improved system accuracy. |
| P4A | High-precision tolerance class, with extremely tight limits on bore, outside diameter, and width tolerances for superior running accuracy. |
S7010 ACEGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and optimized internal geometry enable the bearing to support substantial combined radial and axial loads. The standard Light Preload (GB) eliminates internal clearance, resulting in high system stiffness and precise shaft positioning.
- Superior High-Speed Performance: The lightweight phenolic resin cage ensures stable operation and reduced centrifugal forces at high speeds, contributing to the high limiting speed of 46,000 rpm. The bearing is pre-lubricated with high-quality grease suitable for this performance envelope.
- Precision Engineering: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications requiring high rotational accuracy. The sealed design protects the precision-ground chrome steel components from contamination.
- Universal Matching: As a Universal Matchable (SU) bearing, the S7010 ACEGB/P4A can be universally mounted with another bearing of the same type in various preloaded arrangements (back-to-back, face-to-face, or tandem), offering exceptional flexibility for machine designers.
S7010 ACEGB/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors and Encoders.
- Medical Equipment and Analytical Instruments.
