Ball Bearing

Selecting the right mechanical components is fundamental to minimizing rotational friction and maximizing machinery life, and our extensive inventory at 3BG Supply offers an unmatched collection of premium ball bearings for every industrial application. As an essential element in power transmission, a high-quality ball bearing utilizes spherical rolling elements to carry structural loads while maintaining exceptionally smooth high-speed rotation. Our versatile catalog encompasses everything from standard deep groove ball bearings engineered to handle combined radial and axial loads, to specialized double row ball bearings designed for significantly elevated radial capacities. For compact electronics, precision instruments, and medical devices, we stock a precise layout of miniature ball bearings, alongside cutting-edge ceramic ball bearings tailored for high-speed, non-conductive, or corrosive operating environments. Sourcing your industrial ball bearings through 3BG Supply ensures you get components that improve system efficiency and eliminate costly breakdown downtime.

Many Ball Bearing Types Available

Whether you need angular contact bearings, miniature precision ball bearings, or single row ball bearings we’ve got you covered.

Expert Guidance on Ball Bearing Sizes and Dimensions

Our specialists help you understand ball bearing sizes and dimensions, interpret a ball bearing size chart, and determine the best option for your unique load and speed requirements.

Sourcing From Trusted Ball Bearing Manufacturers

We partner with leading ball bearing manufacturers and suppliers across the globe to deliver both off-the-shelf and custom-engineered solutions.

Find the right Ball Bearing for your needs.

  • Brand
  • Bore / Inner Diameter Inch
  • Bore / Inner Diameter MM
  • Outside Diameter Inch
  • Outside Diameter MM
  • Width Inch
  • Width MM
  • Seal Type
  • Bearing Locking Style
  • Height Inch
  • Height MM
  • Material
  • Outside Diameter Design

    3BG Supply is the Ball Bearing Distributor You Can Rely On

    At 3BG, we combine limitless inventory access, technical expertise, and fast delivery to provide the ball bearings your operations depend on. From diagnosing a bad ball bearing to choosing the right ball bearing grease for maintenance, our experts help minimize downtime and maximize performance. Browse our complete inventory of ball bearings for sale, including:
    • Deep groove ball bearings for high-speed reliability
    • Stainless steel and ceramic ball bearings for durability in harsh environments
    • Commercial ball bearings and small ball bearings for everyday industrial use
    • Ball bearing Balls and hinges for smooth, low-friction movement

    FAQs

    What are the primary components of a standard ball bearing and how do they function?

    A standard ball bearing is a mechanical assembly comprised of four primary components: an inner ring, an outer ring, an array of spherical balls, and a cage (or retainer) that spaces the balls evenly around the tracks. The inner ring mounts directly to a rotating shaft, while the outer ring remains fixed within a housing or machine frame. As the shaft rotates, the precision balls roll within the polished inner and outer raceways, dramatically minimizing rotational friction. This optimized engineering allows industrial ball bearings to efficiently support radial and axial loads across diverse machinery layouts. For more information, check out our blog on How Linear Bearings Work.

    When should I implement double row ball bearings instead of standard single row deep groove ball bearings?

    You should implement double row ball bearings when your machinery demands higher radial load capacity but structural space constraints prevent you from using a larger diameter single row option. Double row ball bearings feature two adjacent rows of rolling elements running in parallel raceways. This layout considerably increases the bearing's load-carrying area, making it exceptionally reliable for heavy-duty industrial gearboxes, pumps, and belt conveyor pulleys that experience continuous stress. However, standard single row deep groove ball bearings remain the preferred option for extremely high-speed applications due to lower internal friction and heat generation.

    What are the unique operational benefits of upgrading to ceramic ball bearings?

    Upgrading to ceramic ball bearings provides massive performance advantages in highly specialized or demanding operating conditions. Ceramic rolling elements (typically made from silicon nitride) are 40% lighter than traditional steel balls, reducing centrifugal force and enabling significantly faster rotational speeds. Furthermore, ceramic ball bearings possess extreme structural hardness, operate at lower temperatures, are completely non-conductive to eliminate electrical arcing damage, and resist chemical corrosion. This makes them the ideal choice for advanced high-speed electric motor spindles, chemical processing pumps, and cleanroom instrumentation distributed via 3BG Supply.

    How do miniature ball bearings differ from standard industrial bearings regarding handling and applications?

    Miniature ball bearings are generally categorized as bearings with a bore diameter of less than 10mm. Because of their small physical scale, they are engineered with highly exact dimensional tolerances to support high speeds with ultra-low frictional torque. They are commonly utilized in precision equipment like dental drills, small electric motors, laboratory instrumentation, RC robotics, and aerospace encoders. Unlike large industrial components, miniature variants require delicate handling and clean installation environments, as microscopic dust particles can lock the small rolling elements and cause immediate failure.