Bearings Size Charts: A Comprehensive Guide


Bearings are critical components in various mechanical systems, ranging from household appliances to complex industrial machinery. They facilitate smooth motion and reduce friction between moving parts. To ensure the proper selection and application of bearings, understanding their dimensions and specifications through size charts is essential. This article delves into the KAYDON Thin Section Bearings significance of bearings size charts, how to interpret them, and their applications.

Importance of Bearings Size Charts

Bearings size charts are vital tools for engineers, technicians, and hobbyists. They provide a standardized reference for selecting the right bearing for a specific application, ensuring compatibility and optimal performance. These charts list various bearing types along with their critical dimensions and load ratings.

Common Bearing Types and Their Size Charts

  1. Ball Bearings
    • Deep Groove Ball Bearings: Known for their versatility and high-speed capability.
    • Angular Contact Ball Bearings: Designed to handle axial and radial loads.
    • Self-aligning Ball Bearings: Suitable for applications with misalignment.
  2. Roller Bearings
    • Cylindrical Roller Bearings: Ideal for heavy radial loads.
    • Spherical Roller Bearings: Accommodate misalignment and heavy loads.
    • Tapered Roller Bearings: Handle combined axial and radial loads.
  3. Thrust Bearings
    • Thrust Ball Bearings: Used in applications with axial loads.
    • Thrust Roller Bearings: Designed for high axial load capacities.

Interpreting Bearings Size Charts

Bearings size charts typically include the following key dimensions and specifications:

  • Inner Diameter (ID): The internal width of the bearing, which fits onto the shaft.
  • Outer Diameter (OD): The external width of the bearing, fitting into the housing.
  • Width (B): The total thickness of the bearing.
  • Load Ratings: Indicate the maximum load capacity for radial and axial forces.
  • Speed Ratings: Maximum operational speeds for the bearing.