Oil Seal TC - Rotary Shaft Seal

Material and Variants

TC oil seals are made in a few different elastomers and each of these materials behave a bit differently. Some of these rotary shaft seals can resist a higher temperature and others are better compatible with oils or specific chemicals. If you want to choose the best seal, you’ll have to consider where you’re going to use it and what conditions the seal will have to withstand.

Usually, the metal case is made of carbon steel but when corrosion is a concern, you could choose to use stainless steel. The spring inside the rotor seal follows the same idea. Some of these are made of spring steel but others are made of stainless steel due to a harsher environment. Which materials you should use really depends on the machine and how clean or dirty the process is.

Operating Conditions

As seen in practical situations, TC oil seals work best when their limits are not being surpassed. In most situations, a standard seal can deal with temperatures between -40°C and +100°C. Although the seal could handle temperatures up to +100°C, it’s usually better to stay around +80°C because higher heats shorten the seal’s lifetime quiet a bit. Also, these seals are not meant for high-pressure applications as they can only handle pressure up to roughly 0.05 MPa. The allowed shaft speed depends on a few things, like the seal size, the shaft surface and how thick the lubricant is.

Oil seal TC run well with mineral oil-based lubricants and with many synthetic oils too. If there is no information available about a certain lubricant, it is safer to check the compatibility first before using it.

Design Requirements for Shafts and Housings

TC Type Rotary Shaft Seal VS Other Seal Types

TC oil seals are often compared to other profiles such as SC and TB. An SC seal uses only a single sealing lip and is therefore more suited to clean environments. TB seals share the double-lip configuration but typically use a different case design and may not include the same elastomer-coated OD features. In general, the TC seal is chosen when contamination is present, when static sealing requirements are higher, or when the housing material benefits from an elastomeric interface.

Alternative Names for the Oil Seal TC

Many manufacturers use their own codes for the TC oil seal. Although the design is the same, a double-lip radial shaft seal with a rubber-coated outer diameter, the naming can differ per brand or catalog system. The table below shows the most common alternative designations used worldwide, making it easier to match a rotor oil seal TC to another supplier’s reference.

Where TC Oil Seals are Used

Because they keep out dust so well, oil seal TC are widely used in agricultural machines, construction equipment, transport systems, industrial gearboxes and electric motors. The rubber coated outside together with the dual lip setup gives the seal enough stability to keep working even when the machine deals with dirt, vibration, humidity or changing loads during normal operation. For many technicians and engineers, the TC seal profile is simply the usual choice when long term reliability matters and when the surroundings are not clean enough for more delicate sealing options.

Choosing the Right Oil Seal TC

Selecting the appropriate rotary shaft seal involves matching the elastomer to the operating fluid and temperature, confirming shaft and housing tolerances, and evaluating the level of contamination present in the application. NBR variants are ideal for most general industrial systems, while FKM (Viton) versions are preferred for elevated temperatures or chemically aggressive media. When the housing requires increased static grip, a ribbed outer-diameter style such as the G11 seal may be more suitable.

Ordering TC Oil Seals

Our TC oil seals are available in a wide range of sizes, elastomers and case materials. You can use the filters on this page to choose the inner diameter, outer diameter, width and compound that best fit your application. Whether you require NBR for standard use or FKM for higher temperatures, the oil seal TC design ensures dependable sealing performance in demanding, contaminated environments.

FAQ