S7015 ACB/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7015 ACB/P4A
Basic Information
System of measurement
Metric
Weight
0.7 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
115 mm
Outside diameter tolerance
-0.008mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
30
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4275 lbf
Radial static load rating
3735 lbf
Limiting speed
14 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:
$ 723.72
/ each
In Stock
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S7015 ACB/P4A Bearing Product Overview & Core Advantages
The S7015 ACB/P4A is a precision single-row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4 (ABEC-7) tolerance class, this bearing is designed to accommodate high combined loads (radial and axial) in one direction, making it ideal for high-rigidity, high-reliability systems. Its preloaded configuration ensures minimal axial play and superior running accuracy right from installation, eliminating the need for complex adjustments.
S7015 ACB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7015 | Standard bearing series designation with 75mm bore, 115mm OD, and 20mm width. |
| ACB | Specific internal design and contact angle (25°) optimized for high-speed operation and preload. |
| P4A | Indicates P4 (ABEC-7) precision tolerance class and specific running accuracy requirements. |
S7015 ACB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The 25° contact angle and preload provide excellent axial and radial stiffness, crucial for maintaining precision under load and minimizing deflection.
- Superior High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, enabling stable operation up to the limiting speed of 14,000 rpm.
- Optimized Load Capacity: Engineered with a dynamic load rating of 4275 lbf and static load rating of 3735 lbf, it reliably handles significant combined loads.
- Sealed & Lubricated for Life: The sealed design and factory-applied lubrication protect against contamination, offering long-term, maintenance-free operation within the specified temperature range (-30°C to 110°C).
- Premium Materials: Constructed from chrome steel for rings and balls, ensuring high durability and fatigue resistance.
S7015 ACB/P4A Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Gearboxes and High-Frequency Motors
- Industrial Pumps and Compressors
- Robotic Arms and Precision Positioning Systems
- Aerospace Actuators and Medical Equipment
