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Home > products > Precision Ball Bearings > 71811 ACD/P4 Super Precision Single Row Angular Contact Ball Bearing 7811

71811 ACD/P4 Super Precision Single Row Angular Contact Ball Bearing 7811

Product Details

Place of Origin: China

Brand Name: CNBTZC or OEM

Certification: IATF16949:2016

Model Number: 71811 ACD/P4

Payment & Shipping Terms

Minimum Order Quantity: 1000

Price: Please contact us,thanks

Packaging Details: plastic bag,box,carton,pallet

Delivery Time: 2-3 weeks

Payment Terms: L/C,T/T

Supply Ability: 200000pcs per month

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Highlight:
Part Number:
71811 ACD/P4 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 7811A5TRP4
Coating:
Without
Sealing:
Without
Design:
High-capacity D
Contact Type:
Normal Contact (two-point Contact)
Part Number:
71811 ACD/P4 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 7811A5TRP4
Coating:
Without
Sealing:
Without
Design:
High-capacity D
Contact Type:
Normal Contact (two-point Contact)
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,bore diameter is 55 mm, outside diameter is 72 mm,width is 9 mm,featuring precise dimensions, high static load capacity, P4 precision grade, 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

 

 

71811 ACD/P4 Super Precision Single Row Angular Contact Ball Bearing 7811 0

 

 

71811 ACD/P4 Super Precision Single Row Angular Contact Ball Bearing 7811 1

 

What's the Performance Features of 71811 ACD/P4 Bearing?

 

The 71811 ACD/P4 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 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. Below is a detailed breakdown of its application areas across various industries.


1. Machinery and Machining

  • Grinding Machines: Grinding machines require highly precise rotating components. The 71811 ACD/P4 bearing’s high precision and smooth rotation ensure stability and accuracy during the grinding process, thereby improving the quality of machined parts.
  • Lathes: Stability of the spindle is critical during cutting operations. This bearing provides reliable support to lathe spindles, reducing vibration and noise, ensuring efficient and stable operation for turning various metals.
  • Boring Machines: Boring machines are used for high-precision boring operations. The high precision of this bearing ensures accurate spindle rotation, achieving superior dimensional accuracy and surface quality in bored holes.

2. Industrial Equipment

  • Active Pharmaceutical Ingredient (API) Equipment: In pharmaceutical production, many machines require precise operation and stable support. The 71811 ACD/P4 bearing can be applied to critical components such as mixers and conveyors, ensuring normal operation and improving production efficiency and product quality.
  • Self-Priming Pumps: Self-priming pumps must withstand certain pressures and speeds. The high load-carrying capacity and excellent speed performance of this bearing ensure stable pump operation, enhancing reliability and service life.
  • Rubber Machinery: Rubber machinery performs complex operations like mixing, extrusion, and molding during rubber product manufacturing. This bearing provides stable support to rotating components, ensuring efficient equipment operation and improving rubber product quality.

3. Other Fields

  • Friction Welding Machines: Friction welding machines require precise rotation and pressure control during welding. This bearing can be used in the spindle and transmission components, ensuring welding stability and precision, thus improving welding quality.
  • Decanters: Decanters in wastewater treatment systems perform frequent lifting and rotating operations. The high precision and reliability of this bearing ensure the proper functioning of decanters, improving wastewater treatment efficiency.
  • Industrial Furnaces: Industrial furnaces require precise temperature and atmosphere control during heating. This bearing can be used in transmission components and fans, ensuring stable operation and improving heating efficiency and product quality.
  • Heat Transfer Equipment: Heat transfer equipment requires precise positioning and rotation. This bearing provides stable support to key components, ensuring accuracy and stability during the heat transfer process, thus improving transfer quality.
  • Plate Punching Machines: Plate punching machines require precise punching and positioning of printing plates. This bearing can be used in the spindle and transmission components, ensuring stable operation and improving plate-making quality.
  • Calender Machines: Calender machines require precise control of pressure and speed during calendering processes for paper, plastic, and other materials. This bearing provides stable support to key components, ensuring stability and precision during calendering, thus improving calendering quality.
  • Sewing Machines: Sewing machines require high-speed, stable rotation during sewing. This bearing can be used in the spindle and transmission components, ensuring normal operation and improving sewing efficiency and quality.
  • Cycloidal Gear Reducers: Cycloidal gear reducers must handle large torques and speeds during transmission. The high load-carrying capacity and excellent speed performance of this bearing meet the operational requirements of these reducers, ensuring stable operation and improving transmission efficiency and reliability.
  • Forestry Machinery: Forestry machinery must operate in harsh environments and handle large loads during wood processing and logging. This bearing can be used in key components such as sawmills and debarkers, ensuring stable operation and improving forestry production efficiency.
  • Water Welding Machines: Water welding machines require precise control and stable operation during welding. This bearing provides stable support to key components, ensuring welding stability and precision, thus improving welding quality.
  • Crushers: Crushers must withstand significant impact forces and loads during material crushing. This bearing can be used in the spindle and transmission components, ensuring stable operation and improving crushing efficiency and quality.
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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

 

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