TRK and Stefa type CD - TRK000210-N7MM5
The 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.
Material Properties:
Material Type NBR/metal
Installation Dimensions:
Shaft diameter, d1 h11 21 mm
Bore diameter, d2 H8 29 mm
Width, b 4 mm
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.