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Home > products > Precision Ball Bearings > 71911 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7911

71911 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7911

Product Details

Place of Origin: China

Brand Name: CNBTZC or OEM

Certification: IATF16949:2016

Model Number: 71911 CD/P4A

Payment & Shipping Terms

Minimum Order Quantity: 1000

Price: Please contact us,thanks

Packaging Details: plastic bag,box,carton,pallet

Delivery Time: 2-4 weeks

Payment Terms: L/C,T/T

Supply Ability: 200000pcs per month

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Highlight:
Part Number:
71911 CD/P4A Angular Contact Ball Bearing
Structure:
Angular Contact
Seals Type:
Open (2RZ Available)
Ring Type:
One-piece Inner And Outer Rings
Lubrication:
Grease,Oil
Replaceable With:
SKF, NSK 7911CTRP4
Coating:
Without
Sealing:
Without
Design:
High-capacity D
Contact Type:
Normal Contact (two-point Contact)
Part Number:
71911 CD/P4A Angular Contact Ball Bearing
Structure:
Angular Contact
Seals Type:
Open (2RZ Available)
Ring Type:
One-piece Inner And Outer Rings
Lubrication:
Grease,Oil
Replaceable With:
SKF, NSK 7911CTRP4
Coating:
Without
Sealing:
Without
Design:
High-capacity D
Contact Type:
Normal Contact (two-point Contact)
71911 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7911

71911 CD/P4A 55*80*13 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing 

Super-precision, high-capacity D design, single row angular contact ball bearing  

 

The 71911 CD/P4A bearing,bore diameter is 55 mm, outside diameter is 80 mm,width is 13 mm,featuring precise dimensions, high static load capacity, P4A precision grade, delivers superior performance and reliability for applications requiring high rotational accuracy and stability.

 

Part Number 71911 CD/P4A
Bearing Type Angular Contact
Measurement Unit Metric
Dimensions Inner Bore Diameter (d) 55 mm
Inner Bore Diameter Tolerance -0.007mm to 0
Outer Bore Diameter (D) 80 mm
Outer Bore Diameter Tolerance -0.007mm to 0
Width (B) 13 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 Open
Temperature Range -30°C to 150°C
Lubrication Oil,Grease  
Tolerance Class P4A better than P4 (ABEC-7)
Weight 0.17 kg
Matched Arrangement No
Universal Matching Bearing No
Preload Not applicable
Load and Speed Dynamic Radial Load 19500 N
Static Radial Load 14600 N
Reference Speed For Grease (r/min) 16,000 rpm
Limiting Speed For Oil(r/min) 26,000 rpm

 

 

 

71911 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7911 0

 

71911 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7911 1

 

What's the Performance Features of 71911 CD/P4A Bearing?

 

The 71911 CD/P4A angular contact ball bearing is engineered for high-precision and high-performance applications, featuring very tight tolerances suitable for precise machinery, the 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.

 

What's the Applications of the 71911 CD/P4A Bearing?

 

The 71911 CD/P4A bearing, known for its high precision, rigidity, and long service life, finds applications across a wide range of industries. Below is a detailed breakdown based on your provided categories:


1. Machine Tool Industry

  • CNC Machine Tool Spindles: Ensures high-speed and precision operations in CNC machines.
  • Grinding Machine Electric Spindles: Supports grinding processes with high accuracy and minimal vibration.
  • Machining Center Rotary Axes: Provides reliable performance for rotary axes in machining centers, ensuring smooth operation and precise positioning.

2. Precision Instruments & Industrial Robots

  • Robot Joint Reducers: Facilitates smooth and precise movements in robotic joints, enhancing the efficiency and accuracy of industrial robots.
  • Rotary Joint Drive Units: Offers stable and accurate rotation for various drive units, crucial for maintaining operational precision.
  • Optical Instruments (e.g., Semiconductor Lithography Machines): Enables ultra-precise alignment and movement, essential for semiconductor manufacturing processes.
  • High-Precision Measurement Equipment: Ensures reliability and accuracy in measurement instruments, contributing to consistent and dependable results.

3. Aerospace & Defense

  • Aircraft Engine Auxiliary Power Units (APUs): Provides durable and reliable support in auxiliary power systems, ensuring continuous operation under demanding conditions.
  • Helicopter Transmission Systems: Supports efficient power transmission in helicopter gearboxes, critical for safe and reliable flight operations.
  • Gyroscope Mounts in Missile Guidance Systems: Enhances the stability and accuracy of gyroscopes used in missile guidance systems.
  • Radar Antenna Rotating Mechanisms: Ensures smooth and precise rotation of radar antennas, vital for effective surveillance and tracking.

4. New Energy Vehicles & Electric Drives

  • Electric Vehicle Motor Spindles: Supports high-performance electric motors in vehicles, contributing to improved efficiency and longevity.
  • Hybrid Transmission Systems: Facilitates smooth transitions between different drive modes in hybrid vehicles, improving overall vehicle performance.
  • High-Speed Rotors in Fuel Cell Air Compressors: Ensures reliable operation of high-speed rotors in fuel cell air compressors, crucial for optimal system performance.

5. Medical Equipment

  • CT Scanner Rotating Gantries: Provides smooth and precise rotation for CT scanner gantries, enhancing image quality and diagnostic capabilities.
  • Dental Drill Drive Units: Ensures precise and controlled movements in dental drills, improving patient care and treatment outcomes.
  • Precision Transmission Components in Surgical Robots: Facilitates accurate and reliable movements in surgical robots, enabling complex procedures with high precision.
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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!

71911 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7911 2