TRK and Stefa type CD

The Trelleborg Sealing Solutions Type TRK are specially designed radial oil seals reinforced with a metal insert but without a spring energized sealing lip and a wavy rubber covered outer diameter. STEFA CD type are available with flat rubber covered outer diameters. These types are not recommended for use in heavily polluted environments.

Seal Capabilities

  • Speed (max) 10 m/s
  • Pressure (max): 0 Mpa
  • Temperature: -40 °C to 200 °C
  • Size Range: 4 mm to 70 mm

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
(per piece)
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