- * Aerospace Used in aircraft engines, fuel systems, and hydraulic systems to ensure leak-free performance in harsh operating conditions.
- Oil seal 29x44x7, also known as rotary shaft seal, is a mechanical seal that prevents the leakage of fluids in machinery. It is specifically designed to seal the gap between stationary and moving parts, such as the shaft of a rotating machine. The dimensions of this particular oil seal are 29x44x7 millimeters, making it suitable for a variety of industrial applications.
- WG1222658, WG1222672, WG1222727
Update: Leakage-free
Agricultural vehicles including Mercedes-Benz, Renault and MAN- WG1222658, WG1222672, WG1222727
Rotary Wheel Of Auto Parts
Other important factors are ensuring the hardness and roughness of the shaft are correct. A shaft hardness of HRC 45 is recommended for a rubber sealing lip, with a roughness of Ra 0.4-0.8. A higher shaft hardness of HRC 60 and shaft roughness of Ra 0.1-0.4 is recommended for a PTFE lip.
Oil seals work by squeezing and retaining lubricant in a thin layer between the lip and the shaft. Perfect sealing is ensured by the hydrodynamic action of the rotating shaft, which in turn produces a slight pump action.
Remove the key and keep it safe until ready to refit the pulley.


Runout must be kept to a minimum. Movement of the center of rotation is usually caused by bearing wobble or shaft whip. When coupled with misalignment, this problem is compounded. Contrary to popular belief and common practice, the installation of flexible couplings cannot correct or compensate for misalignment.


Before removing the cover, note the positions of any pipes and wires round it or fixed to it, which have to be removed before it can be freed.

Prepare the shaft and prevent damage
For a more detailed discussion of seal characteristics, please see the following:
Seal characteristics