71900 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71900 CE/HCP4ADBA
Basic Information
System of measurement
Metric
Weight
0.016 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
22 mm
Outside diameter tolerance
-0.004mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
11
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
731 lbf
Radial static load rating
351 lbf
Limiting speed
165 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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71900 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The 71900 CE/HCP4ADBA is a super-precision angular contact ball bearing designed for the most demanding applications. This duplex back-to-back (DB) matched pair delivers exceptional rotational accuracy, high rigidity, and superior high-speed performance. Its core advantages include the ability to handle combined radial and axial loads simultaneously, thanks to the 15° contact angle, and outstanding operational stability under high rotational speeds. Manufactured to ABEC 7 / P4A tolerance class, it is the ideal solution for high-precision, high-reliability machinery requiring maximum performance.
71900 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number 71900 CE/HCP4ADBA is decoded as follows:
- 71900: Denotes the bearing series and size (10mm bore, 22mm OD).
- C: Signifies a 15° contact angle.
- E: Indicates optimized internal design for high-speed operation.
- HC: Stands for Hybrid Ceramic, meaning the balls are ceramic (Si3N4).
- P4A: Represents the super-precision tolerance class (ABEC 7 equivalent).
- DB: Designates the bearings are supplied as a Duplex Back-to-Back pre-matched set.
- A: Specifies the preload level as Extra Light (Class A).
71900 CE/HCP4ADBA 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 can support significant combined loads.
- Superior High-Speed Performance: The combination of a lightweight phenolic resin cage, hybrid ceramic balls (reducing centrifugal forces and friction), and an optimized internal design enables a very high limiting speed of 165,000 rpm.
- Extended Service Life & Reduced Heat Generation: Ceramic balls are harder, lighter, and more wear-resistant than steel, leading to lower operating temperatures, reduced lubrication requirements, and a longer operational lifespan, especially in high-speed applications.
- Precision & Accuracy: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for maintaining high positional accuracy in precision equipment.
71900 CE/HCP4ADBA Bearing Typical Application Areas
This high-performance bearing is engineered for advanced applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- High-Frequency CNC Spindles for milling, grinding, and drilling.
- Precision Machine Tooling and high-speed machining centers.
- High-Speed Robotics and automation arm joints.
- Medical & Dental Equipment spindles.
- Aerospace instrumentation and auxiliary systems.
