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S71908 ACB/HCP4A Super Precision Single Row Angular Contact Ball Bearing 7908 2RZ
S71908 ACB/HCP4A 40×62×12 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Ceramic Balls High Speed
Super-precision, high-speed B design, single row angular contact ball bearing with seals. The S71908 ACB/HCP4A bearing features precise dimensions, high static load capacity, P4A precision grade, and hybrid ceramic balls, delivering superior performance and reliability for applications requiring high rotational accuracy and stability.
Technical Specifications
Part Number
S71908 ACB/HCP4A
Bearing Type
Angular Contact
Measurement Unit
Metric
Dimensions
Inner Bore Diameter (d): 40 mm
Inner Bore Diameter Tolerance: -0.006mm to 0
Outer Bore Diameter (D): 62 mm
Outer Bore Diameter Tolerance: -0.007mm to 0
Width (B): 12 mm
Width Tolerance: -0.2mm to 0
Specifications
Contact Angle: 25° (15°, 40° Available)
Material: Hybrid (Chrome Steel Rings, Ceramic Balls)
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: 0.12 kg
Matched Arrangement: No
Universal Matching Bearing: No
Preload: Not applicable
Load and Speed
Dynamic Radial Load: 5070 N
Static Radial Load: 3900 N
Reference Speed For Grease: 32,000 rpm
Limiting Speed For Oil: 50,000 rpm
Performance Features
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 S71908 ACB/HCP4A high-precision angular contact ball bearing, featuring P4 precision grade and hybrid ceramic balls, is designed for high-speed, high-accuracy, and low-friction applications. It excels in:
High-precision machine tools and spindle systems, ensuring machining accuracy and stability
Automation equipment and industrial robots with its high rigidity and precise positioning
High-speed motors and precision instruments by minimizing heat and energy consumption
Medical devices and laboratory instruments with stringent hygiene and precision requirements
Special industrial environments with extended service life through its sealing design
CERTIFICATE
RoHS & REACH, IATF16949:2016
Feature
High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
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...