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71811 ACD/P4 Super Precision Single Row Angular Contact Ball Bearing 7811
71811 ACD/P4 | 55×72×9 | Super Precision High Capacity Single Row Angular Contact Ball Bearing
Super-precision, high-capacity, single row angular contact ball bearing. The 71811 ACD/P4 bearing features a bore diameter of 55 mm, outside diameter of 72 mm, and width of 9 mm. With precise dimensions, high static load capacity, and P4 precision grade, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
Part Number
71811 ACD/P4
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)
72 mm
Outer Bore Diameter Tolerance
-0.007mm to 0
Width (B)
9 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
Grease or Oil
Tolerance Class
P4 (ABEC-7)
Weight
0.073 kg
Matched Arrangement
No
Universal Matching Bearing
No
Preload
Not applicable
Load and Speed
Dynamic Radial Load
9560N
Static Radial Load
10200 N
Reference Speed For Grease (r/min)
16,000 rpm
Limiting Speed For Oil (r/min)
24,000 rpm
Performance Features of 71811 ACD/P4 Bearing
The 71811 ACD/P4 angular contact ball bearing is engineered for high-precision and high-performance applications. Key features include 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, and effective performance across a wide temperature range.
Applications of the 71811 ACD/P4 Bearing
The 71811 ACD/P4 bearing is a high-precision angular contact ball bearing known for its excellent performance in demanding applications across various industries.
Machinery and Machining
Grinding Machines: Provides stability and accuracy during grinding processes, improving machined part quality
Lathes: Offers reliable spindle support, reducing vibration and noise for efficient metal turning operations
Boring Machines: Ensures accurate spindle rotation for superior dimensional accuracy and surface quality in bored holes
Industrial Equipment
Active Pharmaceutical Ingredient (API) Equipment: Ensures precise operation in mixers and conveyors for pharmaceutical production
Self-Priming Pumps: Provides high load-carrying capacity and excellent speed performance for stable pump operation
Rubber Machinery: Offers stable support for mixing, extrusion, and molding operations in rubber product manufacturing
Other Applications
Friction Welding Machines: Ensures welding stability and precision in spindle and transmission components
Decanters: Provides reliable performance in wastewater treatment systems
Industrial Furnaces: Ensures stable operation in transmission components and fans
Heat Transfer Equipment: Offers precise positioning and rotation for heat transfer processes
Plate Punching Machines: Provides stable operation in spindle and transmission components
Calender Machines: Ensures stability and precision in calendering processes for paper and plastic materials
Sewing Machines: Supports high-speed, stable rotation for efficient sewing operations
Cycloidal Gear Reducers: Handles large torques and speeds for stable transmission operation
Forestry Machinery: Withstands harsh environments in sawmills and debarkers
Water Welding Machines: Provides stable support for precise welding control
Crushers: Withstands significant impact forces during material crushing operations
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...
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...
