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71911 CB/P4A Super Precision High Capacity Single Row Angular Contact Ball Bearing with P4A Precision Grade

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71911 CB/P4A Super Precision High Capacity Single Row Angular Contact Ball Bearing with P4A Precision Grade

Part Number : 71911 CB/P4A Angular Contact Ball Bearing

Design : High-speed B

Replaceable With : SKF, NSK 7911CTRP4

Seals Type : Open (2RZ available)

Brand Name : CNBTZC or OEM

Model Number : 71911 CB/P4A

Certification : IATF16949:2016

Place of Origin : China

MOQ : 1000

Price : Please contact us,thanks

Payment Terms : L/C,T/T

Supply Ability : 200000pcs per month

Delivery Time : 2-4 weeks

Packaging Details : plastic bag,box,carton,pallet

Ring type : One-piece inner and outer rings

Structure : Angular Contact

Coating : Without

Lubrication : Grease,Oil

Contact type : Normal contact (two-point contact)

Sealing : Without

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71911 CB/P4A Super Precision Single Row Angular Contact Ball Bearing 7911
71911 CB/P4A 55×80×13 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing
Super-precision, high-speed B design, single row angular contact ball bearing. The 71911 CB/P4A bearing features precise dimensions, high static load capacity, P4A precision grade, and delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
Technical Specifications
Part Number 71911 CB/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: 0.18 kg
Matched Arrangement: No
Universal Matching Bearing: No
Preload: Not applicable
Load and Speed Dynamic Radial Load: 9950 N
Static Radial Load: 8150 N
Reference Speed For Grease: 22,000 rpm
Limiting Speed For Oil: 34,000 rpm
71911 CB/P4A Super Precision High Capacity Single Row Angular Contact Ball Bearing with P4A Precision Grade 71911 CB/P4A Super Precision High Capacity Single Row Angular Contact Ball Bearing with P4A Precision Grade
Performance Features
The 71911 CB/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 71911 CB/P4A bearing is a high-precision angular contact ball bearing, ideal for high-speed and demanding applications:
1. Machine Tools
  • High-Speed Spindles: Used in machining titanium and composites at 20,000-40,000 rpm. Optimizes cutting forces and reduces heat deformation.
  • Grinder Spindles: Ensures ultra-smooth surface finishes (Ra ≤0.05μm).
2. Semiconductor Manufacturing
  • Wafer Stages: Provides precise motion control for lithography machines.
  • Probe Stations: Keeps stable electrical contact during high-speed wafer testing.
3. Aerospace
  • Fuel Valves: Handles high speeds (up to 25,000 rpm) and resists fuel corrosion.
  • Satellite Reaction Wheels: Ensures smooth operation in vacuum environments for satellite positioning.
4. Medical & Scientific Equipment
  • Proton Therapy: Accurately directs beams with minimal error (≤0.1mm).
  • Centrifuges: Operates at 100,000+ rpm with low vibration for sample protection.
5. Robotics
  • Robotic Joints: Lightweight design improves flexibility and accuracy.
  • Delta Robots: Achieves high repeatability (±5μm) at fast speeds.
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!
71911 CB/P4A Super Precision High Capacity Single Row Angular Contact Ball Bearing with P4A Precision Grade

Product Tags:

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Quality 71911 CB/P4A Super Precision High Capacity Single Row Angular Contact Ball Bearing with P4A Precision Grade for sale

71911 CB/P4A Super Precision High Capacity Single Row Angular Contact Ball Bearing with P4A Precision Grade Images

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