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S71903 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7903 2RZ
S71903 CD/P4A 17×30×7 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing - High Speed
Super-precision, high-capacity, single row angular contact ball bearing with seals
The S71903 CD/P4A bearing features a bore diameter of 17 mm, outside diameter of 30 mm, and width of 7 mm. With precise dimensions, high static load capacity, and P4A precision grade, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
Technical Specifications
Part Number
S71903 CD/P4A
Bearing Type
Angular Contact
Measurement Unit
Metric
Dimensions
Inner Bore Diameter (d): 17 mm
Inner Bore Diameter Tolerance: -0.004mm to 0
Outer Bore Diameter (D): 30 mm
Outer Bore Diameter Tolerance: -0.005mm to 0
Width (B): 7 mm
Width Tolerance: -0.2mm to 0
Specifications
Contact Angle: 15° (25°, 40° Available)
Material: Chrome Steel
Cage Material: Phenolic
Number of Rows: 1 Single Row
Seal Type: Seal on both sides
Temperature Range: -30°C to 150°C
Lubrication: Grease
Tolerance Class: P4A better than P4 (ABEC-7)
Weight: 0.017 kg
Matched Arrangement: No
Universal Matching Bearing: No
Preload: Not applicable
Load and Speed
Dynamic Radial Load: 4160 N
Static Radial Load: 2080 N
Reference Speed For Grease: 53,000 rpm
Limiting Speed For Oil: 80,000 rpm
Product Images
Performance Features
The S71903 CD/P4A angular contact ball bearing is engineered for high-precision and high-performance applications, featuring:
Very tight tolerances suitable for precise machinery
Ability to handle both radial and axial loads simultaneously
High-speed operation with stability
Low torque and friction for energy efficiency
Enhanced rigidity for accuracy under heavy loads
Durability with extended service life
Effective performance across a wide temperature range
Applications
The S71903 CD/P4A bearing is distinguished by its high precision and speed, making it ideal for a variety of demanding applications. It is particularly suited for use in:
Electric spindles
High-speed machining centers
Milling machines
Internal grinding machines
Woodworking machinery
Metal cutting machine tools
By providing stable performance and maintaining accuracy at high speeds, this bearing significantly enhances the efficiency and quality of operations across these applications, including both standard and specialized machinery. Its versatility and reliability make it a crucial component for improving productivity and precision in numerous industrial sectors.
Certifications & Services
RoHS & REACHIATF16949:2016
Features:
High Speed and Stiffness
High Running Accuracy
High Load Carrying Capacity
Services:
OEM & ODM Customized Services
Online Support
Professional Service
Sizes:
Standard sizes available
Custom sizes upon request
Manufacturing:
Factory Manufacturer
Samples available upon request
Beining Intelligent Technology
Precision Bearings for High-Performance Industries
At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in:
CNC Machine Tool Spindles
Robotics
Motors
With a focus on quality, automation, and...
Beining Intelligent Technology
Precision Bearings for High-Performance Industries
At Beining Intelligent Technology, we design and manufacture precision bearings for high-demand applications in:
CNC Machine Tool Spindles
Robotics
Motors
With a focus on quality, automation, and...
