S7007 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Main Dimensions
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S7007 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7007 ACDGA/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. As a single-row bearing with a 25° contact angle and P4A super-precision tolerance, it excels in handling combined loads, particularly high axial loads in one direction. Its extra light preload (Class A) ensures minimal runout and smooth operation, making it ideal for high-speed spindles and other precision machinery where rotational accuracy is paramount. The phenolic cage and sealed design contribute to its reliable performance in demanding environments.
S7007 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
- S7007: Basic model number, indicating a 35mm bore, 62mm OD, and 14mm width.
- AC: Angular Contact design.
- D: Specific internal design optimized for high precision and speed.
- GA: Indicates a specific internal clearance and preload combination (Extra light preload / Class A).
- P4A: Denotes a super-precision tolerance class, exceeding ABEC 7/ISO P4 standards, for exceptional running accuracy.
S7007 ACDGA/P4A Bearing Structural Features & Performance Benefits
The bearing's performance is derived from its optimized construction. The 25° contact angle provides superior axial load capacity. The phenolic resin cage offers excellent strength-to-weight ratio, reducing centrifugal forces and enabling higher limiting speeds (41,000 rpm). The P4A tolerance class ensures tight dimensional control for high rigidity and minimal vibration. Manufactured from chrome steel for both rings and balls, it guarantees durability and long service life under high-stress conditions. The sealed design retains lubrication and protects against contaminants.
S7007 ACDGA/P4A Bearing Typical Application Areas
The S7007 ACDGA/P4A is predominantly used in high-precision, high-speed applications, including:
- Machine Tool Spindles: For CNC machining centers, grinders, and lathes.
- High-Frequency Motors: Where minimal vibration and high rotational accuracy are critical.
- Precision Instrumentation: In medical devices, optical scanners, and measuring equipment.
- Aerospace Components: In gyroscopes, actuators, and other critical flight systems.
