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71911 ACE/P4A Precision Angular Contact Ball Bearing with P4A Precision Grade High-Speed E Design and 55x80x13 mm Dimensions

Name: 71911 ACE/P4A Precision Angular Contact Ball Bearing with P4A Precision Grade High-Speed E Design and 55x80x13 mm Dimensions
Brand: Beining Intelligent Technology (Zhejiang) Co., Ltd
SKU: 71911 ACE/P4A
Price: Negotiable USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: CNBTZC or OEM

Certification: IATF16949:2016

Model Number: 71911 ACE/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

Get Best Price

Product Details

Product Description

Highlight: 
                                                                                                                                                                                                                                                                                                                                                                                71911 ACE/P4A, Precision Angular Contact Bearings 7911
                              

Part Number:	71911 ACE/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 7911A5TRP4
Coating:	Without	Sealing:	Without
Design:	High-speed E	Contact Type:	Normal Contact (two-point Contact)

Part Number:	71911 ACE/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 7911A5TRP4
Coating:	Without
Sealing:	Without
Design:	High-speed E
Contact Type:	Normal Contact (two-point Contact)

71911 ACE/P4A Precision Angular Contact Ball Bearing with P4A Precision Grade High-Speed E Design and 55x80x13 mm Dimensions

71911 ACE/P4A Precision Angular Contact Bearings 7911

71911 ACE/P4A 55×80×13 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing
Super-precision, high-speed E design, single row angular contact ball bearing

Product Specifications

Part Number	71911 ACE/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	25° (15°, 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	14600 N
Static Radial Load	10200 N
Reference Speed For Grease (r/min)	21,000 rpm
Limiting Speed For Oil (r/min)	32,000 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

Machine Tool Spindles - CNC machines and spindle systems for grinding, milling, and turning operations
Precision Instruments & Measurement Equipment - CMMs, optical instruments, and high-precision rotary tables
Aerospace & Defense - Aircraft engine auxiliary systems, missile guidance systems, and gyro stabilization platforms
Industrial Robots & Automation - Robotic joints and precision reducers for accurate motion control
Medical & Semiconductor Equipment - CT/MRI scanners, wafer cutting spindles, and lithography motion stages
High-Speed Motors & Turbo Machinery - Electric spindles, turbo molecular pumps, and compressors

Certifications & Features

Certificates: RoHS & REACH, IATF16949:2016
Features: High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
Services: OEM&ODM Customized Services, Online Support, Professional Service
Sizes: Standard (Custom sizes available upon request)
Factory Manufacturer: Yes

If you need more detailed information, feel free to ask!

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