Address: ul. Smoluchowskiego 1, building 4
Delivery: 24h
We supply customers in Poland and other EU countries.
30x62x7 NBR AO/TC is a double lip radial shaft oil seal for a 30 mm shaft and 62 mm housing bore, with a width of 7 mm. The AO/TC construction combines a spring-loaded primary sealing lip with an additional dust exclusion lip, helping retain lubricant while limiting the ingress of external contamination. The NBR elastomer provides good resistance to mineral oils and lubricating greases, making the seal suitable for many industrial machinery, gearbox, pump and mechanical drive applications.
30x62x7 NBR AO/TC is a double lip radial shaft oil seal designed to retain lubricant around a rotating shaft while providing additional protection against external contamination. The 30x62x7 mm designation specifies a 30 mm shaft diameter, 62 mm housing bore diameter and 7 mm seal width. The NBR elastomer is widely used with mineral oils, greases and other compatible industrial fluids.
Product type: Radial shaft oil seal
Seal design: AO / TC
Construction: Double lip
Shaft diameter d: 30 mm
Outside diameter D: 62 mm
Width b: 7 mm
Nominal dimensions: 30x62x7 mm
Elastomer: NBR
Material name: Nitrile Butadiene Rubber
Primary sealing lip: Spring-loaded
Secondary lip: Dust exclusion lip
Rotation direction: Non-directional with standard plain sealing lip
Media: Mineral oils, greases and fluids compatible with NBR
The AO/TC design features a primary sealing lip and an additional dust lip.
The spring-loaded primary lip operates against the shaft surface and is responsible for retaining the lubricant inside the assembly. The secondary lip provides additional protection against dust, dirt and other external contaminants entering the sealing area.
This construction distinguishes the AO/TC version from a basic single-lip radial shaft seal.
NBR (Nitrile Butadiene Rubber) is one of the standard elastomers used for radial shaft seals because of its good resistance to:
For standard NBR compounds, a typical operating temperature range is approximately -30°C to +100°C. Actual limits depend on the specific compound, medium, shaft speed and operating conditions.
The 30x62x7 NBR AO/TC oil seal can be used in appropriately designed sealing arrangements found in:
The additional dust lip is particularly useful where the sealing point requires both lubricant retention and protection against external contamination.
The three dimensions identify the basic installation size:
30 mm - nominal shaft diameter
62 mm - nominal housing bore / seal outside diameter
7 mm - seal width
When selecting a replacement, verify not only the 30x62x7 mm dimensions, but also the NBR material and AO/TC double lip design.
A 30x62x7 AO/TC seal should not be selected only by its dimensions. The additional dust lip is an important design feature.
A single-lip 30x62x7 seal may fit the same basic installation dimensions but does not necessarily provide the same level of protection against contamination from the external side.
Size: 30x62x7 mm
Shaft: 30 mm
Housing bore: 62 mm
Width: 7 mm
Material: NBR
Design: AO / TC
Seal type: Double lip radial shaft seal
Primary function: Lubricant retention
Secondary function: Dust and contamination exclusion
What do the dimensions 30x62x7 mean?
They specify a 30 mm shaft diameter, 62 mm outside diameter and 7 mm seal width.
What type of seal is 30x62x7 AO/TC?
It is a double lip radial shaft oil seal with a spring-loaded primary sealing lip and an additional dust lip.
Is the 30x62x7 oil seal double lip?
Yes. The AO/TC version incorporates a primary sealing lip and a secondary dust exclusion lip.
What material is this shaft seal made from?
The sealing elastomer is NBR, or Nitrile Butadiene Rubber.
Is NBR suitable for mineral oil?
NBR generally provides good resistance to mineral oils and lubricating greases, which is why it is widely used for rotary shaft seals.
Can an AO/TC seal be replaced by a single lip seal?
They should not automatically be considered equivalent. An AO/TC seal provides an additional dust exclusion function that a standard single-lip design may not provide.
What should be checked when replacing a 30x62x7 shaft seal?
Verify the 30 mm shaft diameter, 62 mm housing bore, 7 mm width, NBR material, lip configuration and operating conditions.
Data sheet
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Address: ul. Smoluchowskiego 1, building 4
Delivery: 24h
We supply customers in Poland and other EU countries.
30x62x7 NBR AO/TC is a double lip radial shaft oil seal for a 30 mm shaft and 62 mm housing bore, with a width of 7 mm. The AO/TC construction combines a spring-loaded primary sealing lip with an additional dust exclusion lip, helping retain lubricant while limiting the ingress of external contamination. The NBR elastomer provides good resistance to mineral oils and lubricating greases, making the seal suitable for many industrial machinery, gearbox, pump and mechanical drive applications.
