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Deep Groove Ball Bearings

Deep Groove Ball Bearing Supplier

Whether you’re building new equipment or keeping existing machinery running, Baker Bearing Company makes it easy to source deep groove ball bearings from the world’s leading manufacturers. As one of the most widely used bearing types in industry, deep groove ball bearings need to be available fast, in the right size and configuration, and from a ball bearing supplier you can trust. With over 140,000 unique line items and one of the largest bearing inventories in the United States, we can fill small replacement orders and large production runs alike.

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What Is a Deep Groove Ball Bearing?

A deep groove ball bearing is a rolling element bearing with a row of steel balls running between an inner ring and an outer ring. Each ring has a deep, uninterrupted raceway that closely matches the curve of the balls. That design lets the bearing carry heavy radial loads along with moderate axial loads in both directions.

Because they are simple, low friction, quiet and capable of high speeds, deep groove ball bearings are the most common bearing type in use today. You’ll find them in electric motors, pumps, fans, gearboxes, conveyors, vehicles, agricultural machinery and household appliances.

Advantages of Deep Groove Ball Bearings

Deep groove ball bearings offer a strong balance of performance, durability and cost. Key benefits include:

  • Radial and axial load capacity: Deep raceways support heavy radial loads and moderate thrust loads in either direction.
  • Low friction: Point contact between balls and raceways keeps friction and heat low, improving energy efficiency.
  • High speed capability: Low friction allows higher rotational speeds than many other bearing types.
  • Quiet, low vibration operation: Ideal for motors, fans and equipment where noise matters.
  • Low maintenance: Sealed and shielded versions come pre-lubricated and often run for the life of the bearing.
  • Easy installation and replacement: Standardized sizes make them simple to mount and interchange across brands.

Deep Groove Ball Bearing Types We Supply

Baker Bearing stocks deep groove ball bearings in a wide range of designs, closures and materials to match your application.

Single row deep groove ball bearings are the most common configuration. They are compact, handle high speeds and fit a wide range of shaft and housing sizes. Most general industrial, automotive and electric motor applications use single row designs.

When a single row bearing doesn’t provide enough radial load capacity for the available space, a double row design adds a second row of balls in nearly the same envelope. Explore our full selection of double row ball bearings for heavier radial load applications.

Deep groove ball bearings are available open or with closures on one or both sides:

  • Shielded (Z or ZZ): Non-contact metal shields keep out larger debris with minimal added friction, making them a good fit for higher speeds in relatively clean environments.
  • Sealed (RS or 2RS): Rubber contact seals hold lubricant in and keep dust and moisture out. Choose sealed bearings for wet, dirty or outdoor conditions.
  • Open: No closures. Open bearings are used where the surrounding system supplies lubrication, such as an oil bath or circulating oil.

Material selection depends on load, speed, temperature and environment. We supply deep groove ball bearings in:

  • 52100 chrome steel: The industry standard for strength, hardness and wear resistance.
  • 440C stainless steel: Corrosion resistant for food processing, marine, medical and washdown environments.
  • M50 tool steel: Retains hardness at elevated temperatures for aerospace and high temperature applications.

For applications that require tight tolerances and very high speeds, see our super precision ball bearings.

Common Deep Groove Ball Bearing Sizes and Series

Most metric deep groove ball bearings follow a standard numbering system, which makes it easy to identify and cross-reference parts between brands:

  • First digit (6): Identifies the bearing as a single row deep groove ball bearing.
  • Second digit: Indicates the series. The 6000 series is extra light, the 6200 series is light and the 6300 series is medium, with load capacity and ring thickness increasing in that order.
  • Last two digits: Indicate bore size. 00 = 10 mm, 01 = 12 mm, 02 = 15 mm, 03 = 17 mm. From 04 and up, multiply by 5 to get the bore in millimeters (for example, 05 = 25 mm).

 

Popular sizes we stock include:

Part Number Bore Outside Diameter Width
6203 17 mm 40 mm 12 mm
6204 20 mm 47 mm 14 mm
6205 25 mm 52 mm 15 mm
6206 30 mm 62 mm 16 mm
6305 25 mm 62 mm 17 mm

Deep Groove vs. Angular Contact Ball Bearings

Deep groove and angular contact ball bearings look similar but are built for different loads:

  • Deep groove ball bearings carry mostly radial loads with moderate axial loads in either direction. They are versatile, cost effective and well suited to high speed general machinery.
  • Angular contact bearings have raceways offset along the bearing axis, so they can carry higher axial loads, typically in one direction per bearing. They are often mounted in pairs for machine tool spindles, pumps and other applications that need high rigidity.

 

If your application has significant or constant thrust loads, an angular contact or thrust bearing is usually the better choice. Our team can help you compare options.

Deep Groove Ball Bearing Brands in Stock

Baker Bearing supplies genuine deep groove ball bearings from the manufacturers you trust, including SKF, Timken, FAG, NSK, NTN, Koyo, MRC, Fafnir, Barden Precision, Kaydon, IKO, INA, McGill, Torrington, Browning, Cooper, RNP and more.

Can’t find the exact brand or part number you need? We can help identify equivalent bearings across manufacturers.

Industry Applications for Deep Groove Ball Bearings

Bearings in different industries require specific sizes, speed ratings, closures and lubrication. Baker Bearing supplies deep groove ball bearings for:

  • Automotive: Alternators, wheel hubs, transmissions, water pumps and electric motors.
  • Agriculture: Balers, combines, planters, mowers and other equipment exposed to dust and moisture.
  • Industrial: Electric motors, gearboxes, pumps, compressors, fans and conveyors.
  • Trucking: Drivetrain components, alternators and auxiliary equipment.
  • Oilfield: Pumps, motors and drilling support equipment operating in harsh conditions.

Why Source Deep Groove Ball Bearings From Baker Bearing

  • One of the largest inventories in the U.S.: Over 140,000 unique line items from international manufacturers.
  • Same-day shipping: Many in-stock items ship the same day from our Torrance, California warehouse.
  • Any order size: From single replacement bearings to large production quantities.
  • Hard-to-find and obsolete parts: Our deep inventory includes discontinued and specialty part numbers.
  • Experienced bearing specialists: Get help with sizing, cross-referencing and selecting the right closure and clearance.
  • Inventory Buyback: Turn your surplus bearing stock into cash.

Deep Groove Ball Bearing FAQs

Deep groove ball bearings support rotating shafts in electric motors, pumps, fans, gearboxes, conveyors, automotive wheels and alternators, and agricultural equipment. They are chosen for applications that need low friction, quiet operation and high speeds under mainly radial loads.

Deep groove ball bearings are the most common type of radial ball bearing. The term describes raceways that are cut deeper and match the ball curvature more closely than shallow groove designs, which increases load capacity and lets the bearing take axial load in both directions.

Deep groove ball bearings can carry moderate axial loads in both directions, but the limit depends on bearing size, internal clearance and operating speed. For applications with heavy or constant thrust loads, an angular contact or thrust bearing is usually a better fit.

2RS means the bearing has rubber seals on both sides. ZZ means it has metal shields on both sides. C3 means the bearing has greater-than-normal internal radial clearance, which allows for thermal expansion in applications that run hot, like electric motors.

A 6205 deep groove ball bearing has a 25 mm bore, 52 mm outside diameter and 15 mm width. It is available with open, shielded (6205ZZ) or sealed (6205-2RS) closures.

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Contact our experts today and we will get back to you as soon as possible.

Corporate Office

9201 SE 91st Ave, Suite 210
Happy Valley, OR 97086

Warehouse Location

2955 Columbia St
Torrance, CA 90503
(800) 808-5412