S71914 CB/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S71914 CB/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.72 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
32
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4972 lbf
Radial static load rating
5625 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 283.49
/ each
In Stock
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S71914 CB/P4ADBB Bearing Product Overview & Core Advantages
The S71914 CB/P4ADBB is a precision duplex back-to-back angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This P4A tolerance class bearing is preloaded and matched as a set to deliver superior performance under combined radial and axial loads. Its compact design, featuring two bearings in a DB arrangement, provides high system stiffness and is ideal for high-speed, high-precision machinery where reliability is critical.
S71914 CB/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S | Designates a super-precision bearing. |
| 71914 | Basic bearing series and size designation (70mm bore, 100mm OD, 32mm width). |
| CB | Specifies a 15° contact angle and specific internal clearance for universal matching. |
| P4A | Indicates a high-precision tolerance class with enhanced running accuracy requirements. |
| DBB | Denotes a Duplex Back-to-Back (DB) arrangement of two matched bearings. |
S71914 CB/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a rigid bearing system capable of withstanding significant combined radial and axial loads from both directions, making it ideal for applications with overturning moments.
- Precision Performance: Manufactured to P4A tolerance class with a Light preload (Class B), this bearing ensures minimal runout and smooth, precise rotation essential for high-accuracy equipment.
- Optimized High-Speed Operation: The lightweight phenolic resin cage and optimized internal geometry contribute to stable operation at high rotational speeds, with a limiting speed of 28,000 rpm.
- Sealed & Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is designed for long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
S71914 CB/P4ADBB Bearing Typical Application Areas
This bearing is engineered for demanding applications in:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Robotic Arm Joints and Precision Rotary Axes
