7015 ACDGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7015 ACDGB/P4A Bearing Product Overview & Core Advantages
The 7015 ACDGB/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single bearing that is Universal Matchable (SU), it can be precisely paired with a second identical bearing to form a pre-loaded duplex set, delivering superior performance. Its key advantages include high-speed capability, excellent combination load handling (simultaneous radial and axial loads), and outstanding operational stability due to its P4A super-precision tolerance class and light preload (Class B). This makes it ideal for high-precision, high-reliability spindles and machinery.
7015 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
- 7015: Basic designation denoting a bearing series with a 75 mm bore and 115 mm outside diameter.
- AC: Angular Contact design with a 25° contact angle.
- D: Signifies the bearing is supplied as part of a Universal Matchable (SU) pair.
- GB: Indicates a Light Preload (Class B).
- P4A: Denotes a super-precision tolerance class, exceeding normal ABEC 7 standards, for minimal runout and vibration.
7015 ACDGB/P4A Bearing Structural Features & Performance Benefits
The performance of the 7015 ACDGB/P4A is driven by its meticulous construction. The 25° contact angle is optimized for supporting significant axial loads in one direction while also handling radial loads. The phenolic resin cage ensures smooth operation at high speeds, contributing to its impressive limiting speed of 31,000 rpm. Manufactured to P4A tolerance standards, this bearing guarantees minimal dimensional variation for superior running accuracy and system rigidity. The universal matching (SU) feature allows for flexible mounting arrangements (DB, DF, DT) to create a stiff, pre-loaded bearing system capable of withstanding complex combination loads.
7015 ACDGB/P4A Bearing Typical Application Areas
This high-precision bearing is engineered for demanding applications where speed, accuracy, and rigidity are paramount. Typical uses include:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Robotic Drives
- High-Frequency Motor Spindles
- Medical and Dental Equipment (e.g., high-speed handpieces)
- Aerospace Instrumentation and navigation systems
