Oil Seals | Radial Shaft Seals
Oil seals, radial shaft seals or Simmerrings® have been designed for sealing shafts and spindles. Oil seals are one of the most frequently used rotary shaft seals. They separate oil or grease on the inside from dirt, dust and/or water on the outside. Most commonly, Oil-seals consist of a rubber sealing lip, a metal housing and a helical tensioned spring.
NewDealSeals supplies various types of oil seals, both with and without dust lip, in accordance with DIN3760/3761 and ISO 6194. Standard available in NBR/Steel and FKM/Stainless steel. Besides the standardised sizes, NewDealSeals also designs special and custom oil-seals.
Industrial Applications
- Power transmission
- Oil refineries
- Off-highway
- Manufacturing
- Automotive
How do Oil seals work?
The common radial oil seals works by creating a thin layer of oil between the rubber sealing lip and the shaft which results in the oil lifting the sealing lip clear of the shaft. This thin layer of oil performs a barrier and prevents leakage of the oil past the sealing lip. For this reason rubber oil seals are not suitable for dry running applications or high pressure.
Technical Specifications
*Each type (profile) has a specific operating pressure and surface speed. Contact our experts for more info.
Movement type
Dynamic reciprocating, dynamic rotating
Surface speed
≤ 30 m/s
Pressure
≤ 5 bar (Most types <0.5 bar)
Temperature range
NBR:-40° to +108° C
FKM:-25° to +204° C
Available materials
Seal:NBR, FKM, MVQ, ACM
Spring:Carbon steel, Stainless steel
Housing:Carbon steel, Stainless steel
Available standards
DIN3760 / 3761 and ISO 6194
Oil Seal Types | Profiles
Type A
The type A shaft seal according to DIN3760 is the most commonly used oil seal for low pressure radial sealing. The rubber covered housing provides good sealing capacity even with rough housing bores.
Type AS
The type AS shaft seal according to DIN3760 is the second most commonly used oil seal for low pressure radial sealing. The rubber covered housing provides good sealing capacity even with rough housing bores. In addition to the A type, the AS has an extra lip for excluding dust.
Type AO
The type AO shaft seal is the light/economical version of the most common type A oil seal. Suitable for light duty rotary shaft sealing. The rubber covered housing provides good sealing capacity even with rough housing bores.
Type AS-P
The rubber covered housing provides good sealing capacity even with rough housing bores. In addition to the A type, the AS-P has an extra lip for excluding dust and an reinforced sealing lip for pressures up to 2 BAR.
TYPE
Type AS-PX
The rubber covered housing provides good sealing capacity even with rough housing bores. In addition to the A type, the AS-P has an extra lip for excluding dust and an metal reinforced sealing lip for pressures up to 5 BAR.
Type B
The Type B shaft seal has a steel/metal outer case. Not recommended in applications where housing bore roughness and tolerances are imperfect or where thermal expansion of the housing is expected.
Type BS
The Type BS shaft seal has a steel/metal outer case. Not recommended in applications where housing bore roughness and tolerances are imperfect or where thermal expansion of the housing is expected. In addition to the B type, this seal also has an extra lip to exclude dust.
Type BO
The type BO shaft seal is the light/economical version of the type B oil seal. Suitable for light duty rotary shaft sealing. The Type BO shaft seal has a steel/metal outer case. Not recommended in applications where housing bore roughness and tolerances are imperfect or where thermal expansion of the housing is expected.
Type C
The Type C oil seal has an extra steel/metal reinforced housing. For improved structural stability. Not recommended in applications where housing bore roughness and tolerances are imperfect or where thermal expansion of the housing is expected.
Type CS
The Type CS oil seal has an extra steel/metal reinforced housing. In addition to the C type, this seal also has an extra lip to exclude dust. Not recommended in applications where housing bore roughness and tolerances are imperfect or where thermal expansion of the housing is expected.
Type CO
The type CO shaft seal is the light/economical version of the type CO oil seal. Suitable for light duty rotary shaft sealing. The Type CO oil seal has an extra steel/metal reinforced housing. Not recommended in applications where housing bore roughness and tolerances are imperfect or where thermal expansion of the housing is expected.
Type A-DUO
The radial shaft seal for sealing dual fluids. The dual lips with garter springs prevent contamination/mixing between the two fluids
CONTACT FORM
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NewDealSeals B.V.
+31 (0) 226 362 233
Boezemschop 8, Breekland, 1724 BJ Oudkarspel, The Netherlands