It is a oil-free bearing. It is oil impregnated bearing in which an olephic fiber material and a special lubricant are homogeneously distributed and impregnated in the textures.
As a result, the DBS bearing is adaptable to a more high speed operation compared with conventional sintered pressed bearing.
These dry bearing consist of two types: one is the solid type, DBS and the other the steel back type, DBB.

DBS dry bearing

Sectional photograph of DBS (Magnification: x50)

Sectional photograph of DBS (Magnification: x50)

FEATURES

• Opearated without lubrication
• Adaptable to operations under a high-load and high speed condition
• Stability in dimensions and shape and very thin structure provide a good chance for compact designing.
• Remarkably high wear resistance has been proved where the oil film formation is difficult such as in reciprocal, oscilllating operations or operation of repeated stop and go.
• Abundant standard parts such as spiral bushing, thrust washer, etc. are available.
• May be replaced with DU dry bearings and DX bearings.

FEATURES

• Operated without lubrication
• Excellent withstanding capacities against load and wear
• Lower friction coeficient (m=0.01-0.15) and excellent high speed characteristics
• Allows a quiet operation and prevents the stick slip phenomenon.
• Will not damage the surface of engaging component.
• Larger tolerance in the axial misalignment