RELIABLE ROTARY SEALS
Rotating applications present one of the greatest challenges to the sealing industry.
Rotary seals perform two basic functions. The primary function is to retain the lubricant in the system. The secondary purpose is to exclude external contaminants such as water and dirt. Organizations face particular challenges with an increasing number of specialty lubricants appearing on the market today, making seal design and the selection of seal material especially important.
Shaft Seals
Shaft seals are used in rotary applications, such as a shaft or rotating bore.
For more than 40 years ERIKS has supplied oil seals in all possible applications.
V-Rings
A v-ring seal is a one-piece seal which is mounted on a shaft and seals axially against a counterface and normally rotates with the shaft.
The construction of a v-ring seal is divided into three parts:
a. the body
b. the lip
c. the hinge
ERIKS offers v-rings manufactured with four standard profiles.
The S type v-rings are designed for shaft sizes up to 200 mm.
The A type v-rings are designed for shaft sizes up to 2020 mm.
The L type v-rings are designed for use when the sealing house is limited or as part of a labyrinth sealing application.
The E type v-rings are designed with a reinforced profile for rigid applications where more axial tolerances are required.
Type A
V-ring type A with bevel back serves as a pressure less, axial rod seal with a very short mounting length, which is clamped on a shaft. The flexible sealing lip seals a counterface at a right angle to the shaft preventing dirt, dust and splash to enter the construction.
Standard Materials
| Material: | NBR | FPM |
| Color: | black | brown |
| Hardness | 60° Shore A | 60° Shore A |
Operational Range
| T: | NBR: -40 till +100°C | FPM: -25 till +200°C |
| V: | ≤ 8m/s, from 8 to 12 m/s radial support is recommended. With speeds over 15 m/s the lip will come off the counter face. |
Type S
Standard Materials
| Material: | NBR | FPM |
| Color: | black | brown |
| Hardness | 60° Shore A | 60° Shore A |
Operational Range
| T: | NBR: -40 till +100°C | FPM: -25 till +200°C |
| V: | ≤ 8m/s, from 8 to 12 m/s radial support is recommended. With speeds over 15 m/s the lip will come off the counter face. |
Type L
Standard Materials
| Material: | NBR |
| Color: | black |
| Hardness | 60° Shore A |
Operational Range
| T: | NBR: -40 till +100°C |
| V: | ≤ 8m/s, from 8 to 12 m/s radial support is recommended. With speeds over 15 m/s the lip will come off the counter face. |
Type E
Standard Materials
| Material: | NBR | FPM |
| Color: | black | brown |
| Hardness | 60° Shore A |
Operational Range
| T: | NBR: -30 till +100°C | FPM: -15 till +200°C |
| V: | ≤ 8m/s, from 8 to 12 m/s radial support is recommended. With speeds over 15 m/s the lip will come off the counter face. |
Lip Seals
Secure sealing on unpaved and stainless steel shafts
No traces of damage on the surface
No need for treatment of the shaft surface (coat, temper, nitrate,…), nor the use of extra sleeves
Thanks to the tangential and radial tension on the lip seal, no pump effect is provided.
Low friction coefficient, low friction losses
Longer duration of life