Products

SIM Lines (Lubrication-free systems)

SIM Lines (Lubrication-free systems)

Systems Exempt from Lubrication - Bushings in Bronze

The Grafimec bearings of Line SIM are exempt from oil and have solid permanent lubrication, they are ideal for critical combinations of load/speed and extremes of temperature, ensuring better conditions of sliding through the formation of permanent film that occurs right when starts the movement between a compound and the bearing.

SIM-F

Similar on the manufacturing process, the basic metal of this range is sintered iron. The standard shapes are smooth and flanged bushings, boards, rings and special shapes in drawing. Like sintered bronze range, Fe alloys are porous and can receive the same lubricant oils under vacuum and pressure. 

The standard composition has Fe=100%, but alloys with Ni and other metals additions are also available.

 

Technical Specifications
UNS / DINF -13501
Tensile Strength N / mm²330
Resistance Limit N / mm²- o -
Compressive Strength N / mm²1200
BRINELL HARDNESS270
Charge Spec. Maximum N / mm²50
PV Maximum N / mm².m / s0.8
Maximum Temperature400
* Maximum Peripheral Speed m / s0.3
** Friction coefficient0.10
Typical Applications and PerformanceModular cast iron.
Widely used in medium or high temperature applications where high wear resistance is required.

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