7214 CD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7214 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7214 CD/P4ADGB is a precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. As part of the Universal Matchable (SU) series, it is engineered to be paired with an identical bearing to form a duplex set, optimizing performance under combined loads. Its P4A tolerance class ensures ultra-precision operation, making it ideal for high-speed spindles and other demanding machinery where high rigidity and minimal runout are critical.
Model Code Breakdown
- 7214: Basic series number (70mm bore, 125mm OD, 48mm width)
- C: 15° nominal contact angle
- D: Light preload designation (Class B)
- P4A: High-precision tolerance class (exceeding ABEC 7)
- DGB: Universal Matchable (SU) bearing, designed for duplex mounting (DB or DF arrangements)
7214 CD/P4ADGB Bearing Structural Features & Performance Benefits
This bearing's performance stems from its optimized design and material selection. The phenolic cage contributes to lower friction and higher limiting speeds (28,000 rpm), while the chrome steel rings and balls provide high load capacity (25,200 lbf dynamic, 26,100 lbf static). The 15° contact angle is ideal for handling combined radial and axial loads. Being Universal Matchable (SU), two bearings can be mounted together to share loads effectively, significantly enhancing system stiffness and stability without requiring selective matching.
7214 CD/P4ADGB Bearing Typical Application Areas
The 7214 CD/P4ADGB is predominantly used in high-performance applications including: Machine tool spindles, high-speed machining centers, precision grinding spindles, industrial pumps, and other precision rotary equipment where high rigidity, accuracy, and reliable high-speed operation are paramount.