S7014 CD/P4ADBC
Sealed Super Precision Angular Contact Ball Bearings
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S7014 CD/P4ADBC Bearing Product Overview & Core Advantages
The S7014 CD/P4ADBC is a precision duplex back-to-back angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched bearing set features a P4A tolerance class and moderate preload (Class C), ensuring superior running accuracy and minimal axial and radial runout. Its primary advantage lies in its ability to handle combined loads—significant radial loads alongside substantial axial loads in both directions—making it ideal for high-precision, high-rigidity spindles and machinery.
S7014 CD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
- S7014: Basic bearing series, 70mm bore, 110mm OD, 40mm width
- C: 15° contact angle, optimized for combined loads
- D: Duplex Back-to-Back (DB) arrangement
- P4A: Ultra-precision tolerance class exceeding ABEC 7 standards
- DBC: Matched set with preload applied (Duplex Back-to-Back, Class C preload)
S7014 CD/P4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and provides stable support for spindles. With a 15° contact angle and optimized internal geometry, this bearing delivers excellent performance under combined radial and axial loads.
Precision Performance: Manufactured to P4A tolerance class with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), this bearing ensures minimal runout and vibration for superior machining accuracy.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio, reduced friction, and superior guidance at high speeds, supporting operation up to 22,000 rpm.
Sealed & Lubricated Design: Factory-sealed construction with grease lubrication provides contamination protection and long-term, maintenance-free operation within the specified temperature range (-30°C to 110°C).
S7014 CD/P4ADBC Bearing Typical Application Areas
The S7014 CD/P4ADBC is specifically engineered for demanding precision applications including:
- Machine tool spindles for milling, grinding, and turning centers
- High-precision machining centers requiring extreme accuracy
- Industrial spindles for semiconductor manufacturing equipment
- Precision measuring instruments and coordinate measuring machines
- Aerospace positioning systems requiring high rigidity and accuracy
