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Radial Ball Bearings

Deep Groove Ball Bearings

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Deep Groove Ball Bearings

Deep Groove Ball Bearings
  • Deep Groove ball bearings are the most popular of all the ball bearing types because they are available in a wide variety of seal, shield and snap-ring arrangements.
  • The bearing ring grooves are circular arcs made slightly larger than the radius of the ball. The balls make point contact with the raceways (elliptical contact when loaded). The inner ring shoulders are of equal height (as the outer ring shoulders).
  • Deep Groove ball bearings can sustain radial, axial, or composite loads and because of simple design, this bearing type can be produced to provide both high-running accuracy and high-speed operation.

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Deep Groove Ball Bearings

  • Longer Life
    Adopted NACHI original seal design to prevent contamination and grease leakage.
    Contains special grease for wider temperature ranges and longer life.
  • Smooth and Quiet Operation
    The precision level of our bearing components has been enhanced to ensure smooth and quiet operation.
  • Low Torque
    Lower rotating torque by improving seal lips.
Deep Groove Ball Bearings

Standerd Configuration of Single-row, Deep-groove Ball Bearings


Configuration Design Cross section
Sealed or shielded Bearings Open
(no seals, shields)
Consists of inner and outer rings, balls, and cage. Open Type
Shield One or two steel shields provide labyrinth clearance Shield Type
Non-contact Rubber Seal One or two non-contact rubber seald provide labyrinth clearance Non-contact Rubber Seal Type
Contact Rubber Seal One or two contact rubber seals in contact with inner ring Contact Rubber Seal Type
Snap-ring Groove in Outer Ring N: with snap-ring groove in outer ring. NR: with groove and snap ring in outer ring. (Use of snap ring allows easy mounting and simplified housing design.) Bearings may also be sealed or shielded. Snap-ring Groove in Outer Ring
Flanged Outer Ring Wiith flanged outer ring. Applicable to Extra-small and Miniature bearings. Bearings may also be sealed or shielded. Flanged Type

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Deep Groove Ball Bearings

  • Electric Motors
    Quiet operation realized by proper clearance, recommend fitting practice. Lower noise lubricants. Suitable for all speed ranges applications requiring low noise.
  • Automotive Alternators
    Longer life in vibrations and high temperature environments.
  • Automotive Starters
    High reliability in periodic use of vibrations and high temperature environments.
  • Compressors
    Long life pump rotors which compress air in low temperature and low viscosity lubrication environments.
  • Blowers
    Quiet and stable operation on fan rotors at high speed, in environments with vibration and high temperatures
  • Transmissions
    Compact design for light weight to achieve high performance.

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Deep Groove Ball Bearings

Dimension Table


Product Catalog/Flyer