The rotary shaft seal(pictured) is constructed with a metal casing which is coved in a rubber material and can be used on any size of shaft.
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The rubber covering prevents the mental casing from rusting and helps prevent damage to the housing during assembly.
This standard rotary shaft seal comes either in single or double lipped style. The single lip seal (SC/R21 or VC/R26) seals against internal media whereas the double lipped seal (TC/R23 or KC) seals against the internal media and offers an auxiliary lip which provides protection against dirt and dust.
The DC/R22 style rotary shaft seal is a double lipped and double sprung seal. This style offers a seal against two medias. Its as simple as that!
The VC/R26 and KC style rotary shaft seal have the same lip features as the SC/R21 and TC/R23 styles but do not contain a garter spring.
This design is often used where space is at a premium or when a low friction application is required.
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The commonly used oil seal forms are TC, SC, TB, SB, TA, SA. Many people are not particularly familiar
with the two types of TF and SF oil seals. Lets talk about the four types of TC/SC and TF/SF below. Oil seal.
First of all, these four types of oil seals belong to a type of skeleton oil seals. They all belong to the inner-wrapped
skeleton oil seals, and their movement methods are all rotary types.
1, TC type
TC type oil seal is the most commonly used oil seal form in modern industry. TC is an inner frame and outer
rubber double lip frame oil seal. In some places, it is also called a lip seal. T stands for double lip and C stands for
rubber coated. The main lip of the double-lip skeleton oil seal is used to prevent oil, and the secondary lip
is used to prevent dust.
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2, SC type
SC type oil seal is a single-lip outer rubber skeleton oil seal. Compared with TC type, it lacks a dust-proof lip,
which is suitable for sealing in a dust-free environment.
3, TF type
TF oil seal is not a particularly common type of oil seal in daily sealing equipment, because it belongs to
the rubber-covered iron shell type oil seal. Generally, the cost of this type of oil seal is much higher than that of
the TC type. It is more commonly used in corrosive environments. The oil seal carbon steel shell skeleton is not
resistant to corrosive environments, so it is necessary to cover all the oil seal iron shell skeleton with specific
corrosion-resistant rubber to protect the oil seal skeleton so that corrosion will not occur. Generally, TF type
oil seals They are all made of fluorine rubber and stainless steel springs, so that they can be used for a long time
in high temperature and corrosive environments.
4, SF type
The SF type is the same as the TF type oil seal, which is a rubber full-coated steel skeleton type oil seal.
The difference between SF and TF is that SF is a single-lip seal suitable for dust-free environment, while TF
is a double-lip seal, which is dustproof. Also oil-proof.
Contact us to discuss your requirements of t type skeleton oil seal for automotive engine. Our experienced sales team can help you identify the options that best suit your needs.