Fafnir 2MM9311WI CR DU


Bearing Images
  • Fafnir 2MM9311WI CR DU Angular Contact Ball Single Row
Bearing Parameters
Availability
Brand Fafnir bearing brand
Model 2MM9311WI CR DU Angular Contact Ball Bearing Single Row
Also known as
Inner (d) MM 55
Outer (D) MM 80
Width (B) MM 26
Weight (kg) 0.36
Technical details (2RS) 2MM=15° low contact angle, superprecision ABEC-7 (ISO P4), 3MM=25° high contact angle superprecision ABEC-7 (ISO P4), 2MMV=15° low contact angle, high grade (HG) between ABEC-7 (ISO P4) and ABEC-9 (ISO P2), 3MMV=25° high contact a
Inner (d) Inch 2.1654
Outer (D) Inch 3.1496
Width (B) Inch 1.0236
Description from Medias
Manufacturer Part Number (MPN) 2MM9311WI CR DU
Bore
Seal No Seal
Cage Type TB - Hard Fiber Cage
External Modification
Radial Internal Play
Precision P4 Precision (Higher than P5)
Heat Stabilization Standard Lubrication
Special Treatment
REVIEWS

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MOST HELPFUL REVIEWS

  •   Name : Alexander
      From : UK
  •   Time : 2025/10/7   Review:★★★★★
  • Having worked with this bearing supplier for three years, what impresses us most is the precision and reliability of their products. We primarily serve automotive manufacturing clients who demand extremely tight bearing tolerances, and KOYO bearings have never missed a delivery deadline. Such a partner gives us tremendous peace of mind.

    ---- Alexander


  •   Name : Lucas Bennett
      From : US
  •   Time : 2025/10/4 11:42:37   Review:★★★★★
  • We switched to their INA bearings after struggling with cheaper alternatives that kept failing in dusty farm conditions. The price is half what we used to pay locally, and the quality is superior. Total game-changer for our repair business.

    ---- Lucas Bennett


  •   Name : Sophia Davis
      From : Albania
  •   Time : 2025/10/3   Review:★★★★★
  • 5 stars all around. The NTN bearings we ordered were well-packaged, arrived ahead of schedule, and work flawlessly in our conveyor system. Customer service answered my questions about load capacity within 10 minutes. Will recommend to fellow makers

    ---- Sophia Davis


  •   Name : Nathan
      From : Germany
  •   Time : 2025/9/27   Review:★★★★★
  • restoring a 1970s industrial lathe meant finding obsolete FAG deep groove ball bearings, and this team delivered.

    ---- Nathan


  •   Name : Sofia
      From : Australia
  •   Time : 2025/9/23   Review:★★★★★
  • The NSK wheel bearings fit like a glove! My technician commented on how smooth the installation was, and the customer came back a month later saying the car rides quieter than ever.

    ---- Sofia


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