Thin Section KA025AR0 Deep Groove Ball Bearing

KA025AR0 bearings represent a special category of thin section bearings. It is characterized by its unique cross-sectional geometry, which remains constant as the bore diameter increases. The KA025AR0 bore diameter is 2.5”. Its outside diameter is 3”.

Delivery Time:
1) 1-3 days for Samples or in Stock
2) 10-15 Days for ordering

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Space-saving design: The constant, slim cross-section makes this bearing ideal for compact designs where space is limited.

Lightweight: Its design reduces the use of materials, resulting in weight reduction, which is critical for aerospace and other weight-sensitive applications.

Load handling capacity: Despite its thin cross-section, this bearing can handle a large number of radial, axial and moment loads, making it versatile in a variety of mechanical setups.

Low friction: It maintains low friction, which improves the overall efficiency of the applications in which it is used.


Number of Row: Single row
Place of Origin: China
Inner Diameter: 2.5″
Outer Diameter: 3″
Width: 0.25″
Dynamic Capacity: 640 lbf
Static Capacity: 960 lbf
Bearing Material: 52100 Bearing Quality Steel
Ring Material: 52100 Bearing Quality Steel
Finish: Uncoated
Operating Temperature: -65 to 250 ºF
Enclosure: Open
Cage Material: Brass
Ball Quantity: 44
Ball Diameter: 0.125″
Fillet Radius: 0.025″
Seal Type: No Seal (Open)



Reali-Slim thin section bearings are designed for industries, at top of the list, and applications where precise positioning and lightweight designs are important, including:​ ​

  • Aerospace
  • Machine tools
  • Medical industry
  • Robotics
  • Semiconductor manufacturing industry
  • Astronomy, telescopes/observatory equipment
  • CT scanners
  • Fixturing and workholding equipment
  • Food processing equipment
  • Glassworking equipment
  • Luggage scanners
  • Optical sights
  • Packaging equipment
  • Radar, satellite and communications equipment
  • Textile machinery
  • Tube and pipe cutting machines

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Why Choose Us:

1> Competitive price

2> Considerate service

3> Assured Quality

4> Small order acceptable