7015 ACEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7015 ACEGA/P4A
Basic Information
System of measurement
Metric
Weight
0.65 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.004mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
26
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5558 lbf
Radial static load rating
4590 lbf
Limiting speed
31 X 1000 rpm
Lubrication
Lubricated
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
No drawings available at the moment, will be launched soon
In Stock
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7015 ACEGA/P4A Bearing Product Overview & Core Advantages
The 7015 ACEGA/P4A is a single row angular contact ball bearing designed for ultra-precision applications requiring exceptional running accuracy and high-speed capability. Manufactured to P4A tolerance class, this bearing delivers superior dimensional and rotational precision. Its 25° contact angle is optimized to support significant combined loads, handling both radial and axial forces simultaneously. The universal matching (SU) design allows for flexible mounting in duplex pairs (DB or DF) to achieve the required rigidity and preload, making it an ideal choice for high-precision spindles and other demanding machinery.
7015 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 7015 ACEGA/P4A provides a detailed technical specification through its suffixes:
- 7015: Basic designation indicating a 75mm bore and 115mm outside diameter.
- A: Signifies a 25° contact angle, optimized for high axial load capacity.
- CE: Indicates the bearing is supplied as a Universal Matchable (SU) set. Two bearings are supplied as a matched pair for duplex mounting.
- GA: Denotes a specific preload level – Extra Light (Class A).
- P4A: Specifies the tolerance class, representing very high precision for both dimensional and running accuracy.
7015 ACEGA/P4A Bearing Structural Features & Performance Benefits
- High Precision & Speed: The P4A super-precision tolerance and phenolic resin cage enable stable operation at high rotational speeds, with a limiting speed of 31,000 rpm. This combination ensures minimal vibration and heat generation.
- Superior Rigidity & Load Capacity: The 25° contact angle and universal matchable design allow for precise preloading when mounted in pairs. This setup significantly increases system rigidity and enables the bearing to handle high combined radial and axial loads (Dynamic: 5558 lbf, Static: 4590 lbf).
- Optimized for Precision Applications: Manufactured from chrome steel for both rings and balls, the bearing ensures high durability and consistent performance. The open design, when used with a controlled lubrication system, minimizes friction and is suitable for a wide operating temperature range of -30°C to 110°C.
7015 ACEGA/P4A Bearing Typical Application Areas
This bearing is engineered for the most demanding precision machinery, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring extreme accuracy and surface finish.
- High-Frequency Motors: Spindles for PCB drilling and other high-RPM applications.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
