Technical Data

The Perfect Oilless SGO

Concept and type of bearing


It refers to every mechanical part, regardless of its shape and material, that uses self-lubrication or rolling character (ball, roller) to deliver power to different kinds of motion such as rotation, reciprocation, thrust, and angular pitching motion.

Type and characteristics

Rolling bearing

Its speed and load resistance are the most excellent in general condition.

1. Ball Bearings

(Used in high speed applications through point-contact motion)

2. Roller Bearings

(Used in high load parts through line-contact motion.)

  • Spherical Roller ( Roller image )
  • Tapered Roller ( Roller image )
  • Cylindrical Roller ( Roller image )
  • Needle Roller ( Roller image )
3. Thrust Bearings

(Thrust motion)

  • Ball Thrust
  • Tapered Roller Thrust

Sliding bearing

It directly operates with shaft or sliding surface without rolling character and it requires gap when working. It is more suitable than ball & roller bearing for coping with impact and vibration in small size and light weight.

  • 1) Oilless bearings (used without lubrication)
  • 2) Simple lubricatiing sliding bearings (oil or grease lubrication)

Comparative Characteristics

Item Oilless bearing General sliding bearing Rolling bearing
Lubrication Can be used without lubrication Requires lubrication Requires general lubrication
Impact resistance Excellent Slightly excellent Weak
Heat resistance Can be used in high temperature Slightly excellent Weak (cannot be used in high temperature)
Corrosion resistance Excellent Slightly weak Slightly weak
Reciprocation Excellent Slightly weak Slightly weak
Oscillation Excellent Slightly excellent Weak