Top characteristics of the SM Series:

• Lower operating friction & temperatures lead to a longer lifespan.


• Contact angles available in 15° and 25° (custom contact angles available by request).


• Specially crafted inner ring can support an average of 20% higher operational speeds (compared to our standard S Series).


• Supports RPM speeds up to 230,000 (steel) / 287,500 (ceramic).


• ID: 5mm to 120mm


• OD: 14mm to 180mm

Our GMN Angular Contact Bearings are manufactured in accuracy classes P4+ (ABEC 7) with P2 (ABEC 9) running accuracy.

Selection Options:

• Ball Material: 52100 Bearing Steel or Ceramic (Silicon Nitride, Si3N4)


• Lubrication: Grease or Oil


• Contact Angle: 15° (C) to 25° (E)


• Cage Material: Phenolic Resin (standard) or PEEK with Carbon Fiber reinforcement


• Preload: Light, Medium, Heavy (or custom)


• Bearing Set: Single, Double, Triple, or Quad Sets, with Universal Matching


• Direct Oil Lubrication: Available on request we can provide a small hole on the outer ring of the bearing for lateral oil supply. 


• Grease Lubrication: Available on request we can provide a slightly larger hole on the outer ring of the bearing for grease lubrication.

Product Table Key:

• C: 15° Contact Angle


• E: 25° Contact Angle


• TA: Phenolic Resin (standard) Cage


• HY: Hybrid: Ceramic (Silicon Nitride, Si3N4) balls with bearing tool steel races