Angular Contact Ball Bearings

GMN Angular Contact Bearings can carry both Radial and Axial loads. These loads are transferred from one raceway to the other through the bearing balls along a specifically designed contact angle. GMN inventories both 15°(C) and 25°(E) contact angles, but many specials are available when the application demands. It is GMN's philosophy to offer the best possible bearing for each application. This can be achieved by explicitly specifying each aspect of the Spindle Bearing to fulfill a particular application's requirement.

Precision Ball Bearings for Machine Spindles

GMN is a worldwide leading producer of high frequency machine spindles, so we know firsthand the demands in modern bearing systems. Using our angular contact bearings (sometimes called spindle bearings), with grease lubrication in particular, many spindles reach the highest processing speed at low production and maintenance costs. GMN can offer an additional increase in speed by using our hybrid ball bearings.

Range of Angular Contact Bearing Series

GMN's "S" bearing Series exceeds most requirements in speed ability, load capacity and both radial and axial stiffness. However, as technology progresses so does GMN to keep pace with the multitude of applications that require Super Precision Bearings. With this in mind GMN can offer multiple bearing series to meet one's application:

Select Your Bearing Series

  • S
    • Most common standard series
    • Great combination of speed, load, and rigidity ratings
    • n*dm values can reach ~1.7 million
  • KH
    • Small ball, higher speed series
    • Optional seals (RZ or 2RZ)
    • n*dm values can reach ~2.1 million
  • SM
    • Optimized inner ring geometry for higher speed
    • Utilizes a large ball for good load capacity
    • n*dm values can reach ~2.0 million
  • BNT
    • Separable bearing based on the ‘S’ series geometry
    • Cage is ball retaining and outer ring guided
    • n*dm values can reach ~1.5 million
    • Separable bearings are for very unique applications, contact GMN USA engineering for technical support
  • BHT
    • Separable bearing based on the ‘SM’ series geometry
    • Cage is ball retaining and outer ring guided
    • n*dm values can reach ~1.8 million
    • Separable bearings are for very unique applications, contact GMN USA engineering for technical support
  • A
    • Oil lubrication supply through the outer ring, open side
    • Optimized for a minimum lubrication requirement
    • Ex. Part Number: HYSMA 6006 CTA A7 UL
  • AB
    • Oil lubrication supply through the outer ring, closed side
    • Optimized for a minimum lubrication requirement
    • Ex. Part Number: HYSMAB 6006 CTA A7 UL
  • L
    • Design similar to ‘A’ lubrication series
    • O-ring seals on the OD to prevent oil seepage
    • Annular ring groove supports ease of installation alignment for lubrication port(s)
    • Ex. Part Number: HYSML 6006 CTA A7 UL
  • LB
    • Design similar to ‘AB’ lubrication series
    • O-ring seals on the OD to prevent oil seepage
    • Annular ring groove supports ease of installation alignment for lubrication port(s)
    • Ex. Part Number: HYSMLB 6006 CTA A7 UL

Possible Design Modifications

  • Cage Material: Phenolic, PEEK with Carbon Fiber, Steel, etc.
  • Ball Material: 52100 Bearing Steel or Silicon Nitride Ceramic
  • Contact Angle: 15°, 25° or potentially a custom contact angle
  • Specific installation tolerance strategies
  • Pre-Load: Spring, Rigid or custom Pre-Load value
  • Seal Options for KH bearings
  • Lubrication: Grease, Oil, Dry Lubrication options


Click here or call 1.800.323.5725 to Request a quote

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