S71906 CE/P4ADGB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S71906 CE/P4ADGB
Basic Information
System of measurement
Metric
Weight
0.096 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2077 lbf
Radial static load rating
1440 lbf
Limiting speed
100.5 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S71906 CE/P4ADGB Bearing Product Overview & Core Advantages
The S71906 CE/P4ADGB is a super-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This universal matchable bearing belongs to the P4A tolerance class, ensuring ultra-precise dimensions and runout for high-performance machinery. Its key advantages include the ability to handle combined loads (radial and axial) simultaneously, superior high-speed capability facilitated by its phenolic cage and optimized grease lubrication, and outstanding operational stability due to its light preload (Class B). The sealed design ensures long-term reliability and protects against contamination.
S71906 CE/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
The model number S71906 CE/P4ADGB is decoded as follows:
- S7: Series designation for high-precision angular contact ball bearings.
- 1906: Standard size designation (Bore: 30 mm, OD: 47 mm, Width: 18 mm).
- CE: Indicates a universal matchable bearing with a 15° contact angle. Two bearings can be mounted in any combination (back-to-back, face-to-face, or tandem) to achieve the desired rigidity and load capacity.
- P4A: Specifies the tolerance class, denoting very high precision for both dimensional and running accuracy, superior to ABEC 7/ISO P4.
- DGB: Combination suffix. D indicates a light preload (Class B). The GB suffix specifies the use of a sealed design and a specific, high-performance grease suitable for the stated temperature range.
S71906 CE/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance standards with a light preload, this bearing provides exceptional running accuracy and stiffness, minimizing deflection under load for superior machine tool performance.
- Superior Load Capacity: The 15° contact angle and optimized internal geometry enable it to support significant combined radial and axial loads efficiently.
- High-Speed Performance: The lightweight phenolic cage and advanced grease lubrication are engineered to reduce friction and heat generation, allowing for a high limiting speed of 100,500 rpm.
- Sealed and Pre-Lubricated: The integrated seals protect the bearing from contaminants and retain lubrication, offering a maintenance-free, long-service-life solution. The pre-filled grease is optimized for a wide temperature range from -30°C to 110°C.
- Universal Matchability (SU): As a universal matchable bearing, it offers unparalleled flexibility in mounting configurations, simplifying inventory and assembly for complex spindle designs.
S71906 CE/P4ADGB Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Drives: Spindles for PCB drilling and routing.
- High-Frequency Motors and Robotic Arm Joints.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace Instrumentation and Optical Scanning Systems.
