Does it mean the seal stops the leakage completely? Well, on the practical grounds yes because there is no ‘visible leakage’.
Single Metal cased design
Most ERIKS oil seals, such as the types M, MST, R and RST, are made of NBR as standard.
Rotary Wheel Of Auto Parts
Additionally, lubricants can be used on both sides of the oil seal to reduce friction and enhance sealing performance. The sealing process is crucial for preventing contaminants from entering machinery or equipment while keeping essential fluids contained within.

Nitrile Oil Seals - Nitrile oil seals, which is the commonly used term for acrylonitrile-butadiene rubber seals, is a very good general-purpose option due to the flexibility of use across a variety of components. The resistance is strong against fats, hot water, gasoline, mineral oils, grease and animal oils, making them the most often-used oil seals. They do not have a wide temperature range, making them a poor choice for machinery that can see extreme changes in temperature.

national skeleton tc oil seal. Whether you need a seal for a small or large shaft, a low or high-pressure system, or a standard or custom application, there is a national skeleton TC oil seal to meet your needs.
Oil seals close spaces between moving or stationary mechanical components to prevent lubricants like grease and oil from escaping, while also preventing dust, dirt, moisture, and other contaminants from entering the seal. Also known as shaft seals, dirt seals, lip seals, or grease seals, the primary components of any oil seal include an inner metal ring, which provides structural support, and a spring, which provides interference for effective sealing.
* KOYO is a registered trademark of JTEKT.
Table 2: How to select the seal type
FKM or FPM, which is in well-known brand Viton™, can withstand higher liquid temperatures of up to 180 ˚C. FKM is highly resistant to strong acids and bases, as well as to synthetic oils and greases. Glycol-based oil and grease, however, can also damage FKM.