TSS type TRA and Stefa type CB

Type TRA Radial Oil Seals are seals with a completely rubber covered outer diameter and a single sealing lip. This type is not recommended for use in heavily polluted environments. Radial Oil Seals are also known as Rotary Shaft Seals, consisting of a rubber sealing lip, metal case and a spiraled tensioning spring Their function is to keep oil and grease within the system dirt and dust out.

Seal Capabilities

  • Size Range: 10 mm to 250 mm
  • Temperature: -40 °C to 200 °C
  • Pressure (max): 0,05 MPa
  • Speed (max) 15 m/s

Material Information for the product(s) on this page

N7M
Colour
black
Basic Material
NBR/metal
Commercial Description
A 70 durometer NBR bonded to a steel case. Comes with a steel spring. The properties of the nitrile rubber depend mainly on the ACN content which ranges between 18 % and 50 %.  In general it has good mechanical properties with an operating temperaturs range of between -30 °C and +100 °C. NBR is mostly used with mineral based oils and greases and is a good choice for standard applications.
N8M
Colour
black
Basic Material
NBR/metal
Commercial Description
An 80 durometer NBR bonded to a steel case. Comes with a steel spring. The properties of the nitrile rubber depend mainly on the ACN content which ranges between 18 % and 50 %.  In general it has good mechanical properties with an operating temperature range of between -30 °C and +100 °C (for a short period of time up to +120 °C). NBR is mostly used with mineral based oils and greases and is a good choice for standard applications.
V8V
Colour
brown
Basic Material
FKM/metal
Commercial Description
An 80 durometer FKM with a standard steel case. Comes with a stainless steel spring. FKM is an elastomer material known especially for its non-flammability, low gas permeability and excellent resistance to ozone, weathering, and ageing.  The operating temperatures of the fluorocarbon rubber range between -20 °C and +200 °C.  FKM is also often used with mineral based oils and greases at high temperatures.
VCV
Colour
brown
Basic Material
FKM/metal
Commercial Description
A 75 durometer FKM with a standard steel case. Comes with a stainless steel spring. FKM is an elastomer material known especially for its non-flammability, low gas permeability and excellent resistance to ozone, weathering, and ageing.  The operating temperatures of the fluorocarbon rubber range between -20 °C and +200 °C.  FKM is also often used with mineral based oils and greases at high temperatures.
Product No. Material Shaft diameter, d1 h11 (mm) Bore diameter, d2 H8 (mm) Width, b (mm) Price
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