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7211 CD/P4A Super Precision Single Row Angular Contact Ball Bearing ACB 55x100x21

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7211 CD/P4A Super Precision Single Row Angular Contact Ball Bearing ACB 55x100x21

Brand Name : CNBTZC or OEM

Model Number : 7211 CD/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

Part Number : 7211 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 7211CTRP4

Coating : Without

Sealing : Without

Design : High-capacity D

Contact type : Normal contact (two-point contact)

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7211 CD/P4A 55x100x21 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Bearings Ceramic Balls

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

The 7211 CD/P4A bearing,with a bore diameter of 55 mm,outside diameter of 100 mm,and width of 21 mm,features precise dimensions, high static load capacity, and is manufactured to the P4A precision grade.This bearing delivers superior performance and reliability, making it ideal for applications that require high rotational accuracy and stability.

Part Number 7211 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) 100 mm
Outer Bore Diameter Tolerance -0.008 mm to 0
Width (B) 21 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 or Grease
Tolerance Class P4A better than P4 (ABEC-7)
Weight 0.61 kg
Matched Arrangement No
Universal Matching Bearing No
Preload Not applicable
Load and Speed Dynamic Radial Load 55300 N
Static Radial Load 43000 N
Reference Speed For Grease (r/min) 14,000 rpm
Limiting Speed For Oil(r/min) 22,000 rpm

7211 CD/P4A Super Precision Single Row Angular Contact Ball Bearing ACB 55x100x21

7211 CD/P4A Super Precision Single Row Angular Contact Ball Bearing ACB 55x100x21

What's the Performance Features of 7211 CD/P4A Bearing?

The 7211CD/P4A angular contact ball bearing features P4 precision grade for high rotational accuracy, handling radial and axial loads efficiently. It enables high-speed operation (up to 15,000rpm), reduces friction for energy savings, and offers strong rigidity for heavy loads. Made with chrome steel, it suits CNC spindles, high-speed motors, and precision equipment, balancing durability and performance in demanding applications.

What's the Applications of the 7211 CD/HCP4A Bearing?

The 7211 CD/HCP4A angular contact ball bearing, with its high-precision P4A grade and hybrid ceramic design, is ideal for:

  • CNC machine tool spindles (e.g., machining centers, grinders)

  • High-speed servo motors (robotics, automation)

  • Industrial pumps and compressors

  • Precision measuring instruments (CMMs, etc.)

  • Aerospace precision machinery

  • High-end medical device rotating components

  • High-precision gearboxes and transmission systems

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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