Type TRU

Trelleborg Sealing Solutions Type TRU is a seal with completely rubber covered outer diameter. This type of seal is designed with an extended metallic support of the diaphragm that allows pressures up to 0.5 MPa. In order to avoid a "pop-out" of the seal, we suggest to fit an axial retainer (e.g. circlip, shoulder, etc.). The additional dust lip protects the main sealing lip against dust and other fine solid contaminants and therefore this type is recommended for use in polluted environments. To achieve a long lifetime a suitable lubricant between the two sealing lips should be applied.

Seal Capabilities

  • Size Range: 8 mm to 120 mm
  • Temperature: -40 °C to 200 °C
  • Pressure (max): 0,5 MPa
  • Speed (max) 10 m/s

Material Information for the product(s) on this page 

4V012

Colour
brown
Basic Material
FKM/metal
Commercial Description
This is an FKM elastomer bonded to a metal case. FKM is often used in high-temperature applications, but usually there is a trade-off in performance at very low temperatures.

4N011

Colour
black
Basic Material
NBR/metal
Commercial Description
A standard choice for radial oil seals, this is an NBR elastomer bonded to a carbon steel case. This combination is a good balance of economical performance for applications with relatively mild temperatures.
Product No. Material Shaft diameter, d1 h11 (mm) Bore diameter, d2 H8 (mm) Width, b (mm) Price
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