S71913 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71913 CE/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.34 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.004mm to 0
Width
26 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6075 lbf
Radial static load rating
5512 lbf
Limiting speed
36 X 1000 rpm
Lubrication
Grease
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
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S71913 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The S71913 CE/HCP4ADGA is a super-precision angular contact ball bearing engineered for the most demanding high-speed and high-rigidity applications. This universal matchable bearing features a P4A tolerance class for exceptional running accuracy and a phenolic cage optimized for maximum rotational performance. Its ceramic balls significantly reduce centrifugal forces, enabling superior high-speed capabilities and extended service life. The sealed design with pre-applied grease ensures reliable, maintenance-free operation in critical machinery.
S71913 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Series designation for super-precision angular contact ball bearings. |
| 1913 | Bore size code (65 mm) and series dimension. |
| CE | Designates a 15° contact angle and specific internal design. |
| HC | Indicates the use of hybrid ceramic balls (Silicon Nitride). |
| P4A | Specifies an ABEC 7 / ISO P4A super-precision tolerance class. |
| DGA | Signifies a sealed bearing, pre-lubricated with high-performance grease. |
S71913 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls reduces weight, minimizes friction, and provides excellent resistance to thermal expansion, directly contributing to a higher limiting speed of 36,000 rpm.
- Super-Precision P4A Tolerance: Guarantees extremely tight dimensional and running accuracy (bore and OD tolerance: -0.004mm to 0), resulting in minimal vibration and superior positional accuracy for spindle applications.
- Phenolic Resin Cage: This lightweight and robust cage material is ideal for high-speed operation, offering excellent dimensional stability and low friction under high centrifugal forces.
- 15° Contact Angle & Universal Match (SU): Optimized for high-speed radial loads while accommodating axial loads. The universal matchable (SU) design allows any two bearings to be paired in a back-to-back (DB) or face-to-face (DF) arrangement without selective mounting, simplifying installation and enhancing system rigidity.
- Sealed & Pre-Lubricated: The integral seals protect against contamination and retain grease, enabling maintenance-free operation within a wide temperature range of -30°C to 110°C.
S71913 CE/HCP4ADGA Bearing Typical Application Areas
This high-performance bearing is specifically designed for applications requiring extreme precision, high speed, and high rigidity. Key industries and equipment include:
- Machine Tool Spindles: High-speed CNC milling, grinding, and turning centers.
- Precision Robotics: High-accuracy robotic arms and joints.
- High-Frequency Motors and Spindles: Motors for PCB drilling and dental handpieces.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and auxiliary power units.
- Medical Equipment: CT scanner gantries and high-speed centrifuges.
