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  • Brand: Cat
    Cat® Cylindrical Roller Bearing (Full Compliment Set - No Cage)
    Availability
    Brand
    Cat
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  • Brand: Cat
    Cat®Special Roller Bearing Cradle Assembly
    Availability
    Brand
    Cat
    • Thickness (mm)
      30.9
    • Thickness (in)
      1.2
    • Outside Diameter (mm)
      169.1
    • Outside Diameter (in)
      6.7
    • Thickness (mm)
      30.9
    • Thickness (in)
      1.2
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  • Brand: Cat
    Cat®Drawn Cup Needle Roller Bearing
    Availability
    Brand
    Cat
    • Inside Diameter (in)
      1.5
    • Inside Diameter (mm)
      38
    • Outside Diameter (mm)
      54
    • Length (mm)
      40
    • Outside Diameter (in)
      2.1
    • Weight (lb)
      0.7
    • Inside Diameter (in)
      1.5
    • Inside Diameter (mm)
      38
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  • Brand: Cat
    Availability
    Brand
    Cat
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  • Brand: Cat
    Cat® Tapered Roller Bearing (Cup only)
    Availability
    Brand
    Cat
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  • Brand: Cat
    Cat®Spherical Bearing Sleeve (Sleeve Only)
    Availability
    Brand
    Cat
    • Bore Diameter (mm)
      127.8
    • Bore Diameter (in)
      5.03
    • Height (in)
      3.54
    • Outside Diameter (in)
      6.99
    • Material Description
      STEEL
    • Height (mm)
      90
    • Bore Diameter (mm)
      127.8
    • Bore Diameter (in)
      5.03
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  • Brand: Cat
    Cat® Ball Bearing (Single Row)
    Availability
    Brand
    Cat
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  • Brand: Cat
    Ball Bearing (Single Row)
    Availability
    Brand
    Cat
    • Inside Diameter (mm)
      139
    • Outside Diameter (mm)
      190
    • Width (mm)
      25
    • Inside Diameter (mm)
      139
    • Outside Diameter (mm)
      190
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  • Products

{imgAlt}Cat® Bearings are used in every drive train component and virtually every mechanical component of Cat machines. But because of the varying speed, power, torque and thrust force going through the drive train, one type of bearing does not meet all the rigorous demands. Several types of bearings are needed, with each bearing being expertly engineered and precisely matched to the kind of load it carries.
Bearings serve to allow parts to move together smoothly with minimum friction, heat and wear, often under extreme loads. We offer two fundamental types of bearings: plain (bushing) and antifriction.
Because bearings are a critical aspect in sustaining safe and reliable equipment establishing and following a preventative maintenance program is a key factor in guaranteeing long bearing service hours and minimizing equipment downtime.
Customers tell us they get twice the wear life from Cat Bearings vs. industry standard bearings in more demanding applications. Here’s why:
1. Crown on rolling elements: The key factor in supporting the high stresses generated by the demanding application environment of Cat equipment is the specialized shape of the bearing rolling element. This precisely crowned shape helps reduce pitting and breakage. Proper crown or curvature of rolling elements allows for high load-carrying ability and long system life. This means customers can work their Cat equipment hard and still obtain the maximum life designed into the major systems.
2. Surface finish: Special surface finishes increase bearing and component life by providing superior control of the oil film on the rolling surfaces. This reduces friction and heat buildup, which are necessary for component wear to occur. As a result, customers receive the component life they paid for - getting the maximum value from their equipment.
3. Application-specific design: No one understands the application demands of Cat equipment and how that translates into structural and design requirements like Caterpillar. Bearing performance is critical to achieving intended drive train life. Caterpillar specifies the bearing features for their suppliers to meet to insure critical gears, shafts and carriers properly mate and align as designed. Saving pennies on bearings can result in larger costs later in the form of shorter component life or project related costs resulting from unexpected equipment down-time.
4. Debris resistant material: Caterpillar incorporates proprietary heat treat processes and uses special materials to achieve a bearing surface which has shown extreme resistance to failures caused by debris in the system. This means that contaminants and metal wear particles circulating through the system are less likely to accelerate the rate of bearing wear. Customers are seeing as much as twice the wear life from this product as industry standard bearings in more demanding applications. Debris resistant bearings are offered for larger Cat off-highway trucks.
Lubricants are a critical aspect of bearing maintenance. It is vital that you always keep lubricants clean when applying them, and cover the containers when not in use. Further, always use the correct type and amount of lubrication, as this will play a key role in bearing wear life. See our Bearing Maintenance Guide or contact your nearby Cat Dealer for more information.