S71910 ACD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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S71910 ACD/P4ADGA Bearing Product Overview & Core Advantages
The S71910 ACD/P4ADGA is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. As a universally matchable (SU) bearing supplied in a duplex set, it is engineered to handle combined loads—significant radial loads and axial loads in both directions—simultaneously. Its P4A tolerance class and extra light preload (Class A) ensure exceptional running accuracy and smooth, low-vibration operation, making it ideal for high-reliability spindles and precision machinery.
S71910 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
- S7: High-precision bearing series for high-speed spindle applications.
- 1910: Standard size designation (10mm bore x 22mm OD x 6mm width). Note: The provided specifications indicate a 50mm bore, suggesting a potential discrepancy between the model number in the query and the provided data. The following suffixes are interpreted based on standard FAG/INA nomenclature.
- ACD: 25° contact angle and a duplex arrangement (DB/DF) with a specific preload.
- P4A: High-precision tolerance class (exceeding ABEC 7), with enhanced running accuracy requirements.
- DGA: Likely indicates a universally matchable (SU) bearing, allowing flexible mounting in any preload configuration (DB, DF, DT).
S71910 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The duplex set and 25° contact angle create a rigid bearing system capable of withstanding high combined loads and moments, providing stable shaft support.
Superior High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, while the P4A precision and optimized internal geometry contribute to a high limiting speed of 34,000 rpm, enabling smooth operation at extreme velocities.
Pre-optimized for Performance: The bearings are supplied as a universally matchable set with an extra light preload (Class A) already applied, eliminating complex mounting calculations and ensuring immediate, optimal performance with low heat generation.
Sealed and Lubricated for Life: As a sealed unit pre-lubricated with grease, it is protected from contamination and is maintenance-free within its specified temperature range (-30°C to 110°C).
S71910 ACD/P4ADGA Bearing Typical Application Areas
This high-precision bearing is primarily used in applications requiring extreme accuracy and speed, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors and encoders.
- Medical Equipment: Dental handpieces and small surgical tools.
