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{"title":"71903 ACD\/HCP4A Super Precision Angular Contact Ball Bearing with 17 mm Bore","imgUrl":"https:\/\/img.chinax.com\/nimg\/99\/b5\/7991cdc0a85ecd064ed090914835-200x200-1\/71903_acd_2fhcp4a_super_precision_angular_contact_ball_bearing_with_17_mm_bore_diameter_p4a_precision_grade_and_hybrid_ceramic_bal.jpg","attrs":{"Structure":"Angular Contact","Delivery Time":"2-4 weeks","Part Number":"71903 ACD\/HCP4A Angular Contact Ball Bearing","Lubrication":"Grease,Oil"}}
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S71909 ACE/P4A Super Precision Single Row Angular Contact Ball Bearing 7909 2RZ
S71909 ACE/P4A 45×68×12 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing High Speed Super-precision, high-speed B design, single row angular contact ball bearing with seals.
The S71909 ACE/P4A bearing features a bore diameter of 45 mm, outside diameter of 68 mm, and width of 12 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
S71909 ACE/P4A
Bearing Type
Angular Contact
Measurement Unit
Metric
Dimensions
Inner Bore Diameter (d): 45 mm Inner Bore Diameter Tolerance: -0.006mm to 0 Outer Bore Diameter (D): 68 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: 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: 0.13 kg Matched Arrangement: No Universal Matching Bearing: No Preload: Not applicable
Load and Speed
Dynamic Radial Load: 9750 N Static Radial Load: 6400 N Reference Speed For Grease (r/min): 25,000 rpm Limiting Speed For Oil (r/min): 39,000 rpm
Performance Features
The 71909 ACE/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 71909 ACE/P4A bearing, as a high-precision angular contact ball bearing, features design characteristics such as P4-grade precision tolerances, a 25° contact angle, and stainless steel material. These attributes make it suitable for the following applications:
Precision Machine Tools and Processing Equipment
Machine Tool Spindles: Used in high-speed, high-rigidity CNC machine tool spindle systems, supporting precision cutting and milling operations
Specialized Machine Tools: Including metal welding machines, cut-off machines, and sliding guideways, ensuring stable equipment operation
Tool Magazine Systems: Paired with machine tool magazines to enable rapid tool changes, enhancing automation efficiency
Industrial Machinery and Equipment
Power Transmission Systems: Applied in heavy-duty equipment such as pile-driving machinery and friction welding machines, capable of withstanding combined loads
Fluid Handling Equipment: Used in centrifugal pumps, process pumps, and wastewater treatment systems, adaptable to wet or corrosive environments
High-Temperature/High-Speed Applications: Such as heat exchangers and hydrostatic guideways, relying on its sealed design and high-temperature resistance
Precision Instruments and Research Equipment
Laboratory Equipment: Including mixing devices and magnetic separators, meeting requirements for high precision and low vibration
Measurement Instruments: Such as mining surveying instruments, ensuring accurate data collection
Special Industrial Scenarios
Printing and Textile Machinery: Used in textile finishing machines and auxiliary textile equipment, handling complex loads
Chemical Equipment: Such as chemical laboratory reactors, resistant to chemically corrosive environments
Certifications & Services
CERTIFICATE
RoHS & REACH, IATF16949:2016
Feature
High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
Service
OEM&ODM Customized Services
Samples
Please Contact Us
Service
Online Support, Professional Service
Size
Standard, For custom sizes, please contact us
Factory Manufacturer
Yes
If you need more detailed information, feel free to ask!
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 efficiency, we serv...
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 efficiency, we serv...
