71914 ACD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71914 ACD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.57 kg
Tolerance class
P4A
Seal type
Open
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
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
11858 lbf
Radial static load rating
14400 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
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
Price:
$ 452.24
/ each
In Stock
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71914 ACD/HCP4ADGA Bearing Product Overview & Core Advantages
The 71914 ACD/HCP4ADGA is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and reliability. This universal matchable (SU) bearing is designed to accommodate combined loads, including significant radial and axial loads in both directions. Its construction with a ceramic ball and phenolic cage enables superior high-speed performance and thermal stability. Preloaded to Extra light (Class A) standards, it offers high rigidity and precise rotational characteristics, making it ideal for high-precision spindles and other critical machinery.
71914 ACD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle for optimal axial load capacity. |
| HC | Hybrid Ceramic, indicating the use of ceramic balls for reduced friction, higher speed capability, and longer service life. |
| P4A | Denotes a high-precision tolerance class (superior to ABEC 7), ensuring minimal runout and vibration for ultra-precise applications. |
| DGA | Universal Matchable arrangement (SU). Two bearings are selectively matched to provide a specific preload or clearance when mounted together face-to-face or back-to-back. |
71914 ACD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The P4A tolerance class and extra light preload (Class A) ensure minimal deflection and exceptional running accuracy, which is critical for machine tool spindles.
- Superior High-Speed Capability: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic resin cage allows for a very high limiting speed of 28,000 rpm.
- Enhanced Load Capacity: The 25° contact angle and robust design provide excellent capacity for combined radial and axial loads.
- Universal Matchability (SU): As part of a universal matched set, these bearings simplify installation and guarantee consistent, pre-determined preload when paired, eliminating complex adjustments.
- Wide Operating Range: The hybrid construction and lubricant enable a broad operating temperature range from -30°C to 110°C.
71914 ACD/HCP4ADGA Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- High-Frequency Machine Tool Spindles (e.g., milling, grinding)
- Precision Robotics and Automation Arms
- High-Speed Motors and Spindle Drives
- Aerospace Instrumentation and Control Systems
- Medical Equipment such as dental handpieces and centrifuges
