25x62x7 NBR TC is a double lip radial shaft seal / rotary shaft seal. Dimensions: d = 25 mm, D = 62 mm, H = 7 mm. Material: NBR - Nitrile Butadiene Rubber. The TC design incorporates a primary dynamic sealing lip and an auxiliary dust lip. Identification: 25x62x7 + NBR + TC.
Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4.
24h Shipping. Available from stock in Poland for delivery across the EU.
25x62x7 NBR TC is a double lip radial shaft seal / rotary shaft seal / oil seal with nominal dimensions of 25x62x7 mm, manufactured from NBR - Nitrile Butadiene Rubber. The TC double lip design incorporates a primary dynamic sealing lip and an additional auxiliary dust lip.
Complete technical identification:
25x62x7 mm + NBR + TC + double lip
The principal identification parameters are:
Product type: Radial shaft seal / rotary shaft seal / oil seal
Design: TC
Configuration: Double lip
Material: NBR
Material name: Nitrile Butadiene Rubber
Dimensions: 25x62x7 mm
Shaft diameter d: 25 mm
Outside diameter D: 62 mm
Height H: 7 mm
Primary lip: Dynamic sealing lip
Additional lip: Auxiliary dust lip
The essential product identification is:
25x62x7 + NBR + TC
The nominal dimensions alone do not completely identify the seal because 25x62x7 shaft seals may be manufactured from different elastomers and use different sealing profiles.
The nominal installation dimensions are:
d = 25 mm - nominal shaft diameter
D = 62 mm - nominal seal outside diameter
H = 7 mm - nominal axial height
Complete dimensions:
25x62x7 mm
The first dimension corresponds to the nominal shaft diameter on which the primary dynamic sealing lip operates.
The second dimension defines the nominal outside diameter of the seal installed in the housing.
The third dimension specifies the nominal axial height.
All three dimensions should be verified when identifying or selecting a replacement.
The sealing material is:
NBR - Nitrile Butadiene Rubber
Material is an integral part of the exact product identification:
25x62x7 + NBR + TC
A 25x62x7 shaft seal manufactured from FPM, MVQ or another elastomer is not the same material variant.
The exact NBR compound and hardness have not been confirmed for this specific product. Therefore, a specific Shore hardness, temperature range, maximum pressure or maximum shaft speed should not be assigned without exact product documentation.
The English design designation used for this product is:
TC
The TC configuration incorporates:
Primary sealing lip - the dynamic sealing element operating against the rotating shaft.
Auxiliary dust lip - an additional external lip protecting the primary sealing zone against contaminants.
The auxiliary lip should not be interpreted as a second identical oil-retaining lip. Its principal function is to provide an additional barrier between the surrounding environment and the primary dynamic sealing area.
The product can therefore be described as a:
TC Double Lip Radial Shaft Seal
TC Double Lip Rotary Shaft Seal
TC Double Lip Oil Seal
During operation, the shaft rotates relative to the stationary seal.
The primary sealing lip operates dynamically against the shaft surface with a nominal diameter of:
25 mm
The outside surface of the seal is installed in the stationary housing with a nominal diameter of:
62 mm
The auxiliary dust lip provides an additional barrier against external contamination reaching the primary sealing area.
The nominal axial height of the seal is:
7 mm
The effectiveness of the sealing system also depends on the condition of the shaft surface, correct installation, operating medium, temperature, shaft speed and other application-specific conditions.
The two lips have different functions.
The:
primary sealing lip
forms the principal dynamic sealing interface against the rotating shaft.
The:
auxiliary dust lip
is positioned toward the external side and provides additional protection against contaminants.
This distinction is important when comparing double lip and single lip shaft seals.
A double lip designation should not be interpreted as two identical dynamic sealing lips performing exactly the same function.
The principal construction difference is the additional auxiliary lip.
A:
TC double lip seal
incorporates a primary dynamic sealing lip and an auxiliary dust lip.
A single lip design may not include the additional dust lip.
Therefore, even when two shaft seals have identical:
25x62x7 mm
dimensions, their construction may differ.
The required lip configuration should be checked before selecting a replacement.
The same general double lip shaft seal concept may be described using different profile nomenclature depending on the manufacturer or market.
For this English product description, the design is identified as:
TC
The Polish product designation may use:
AO/TC
These designations should not be treated as universally interchangeable codes across all seal manufacturers.
When comparing products, verify the actual construction, dimensions, material and application requirements rather than relying solely on the profile abbreviation.
The complete designation identifies:
25 mm - nominal shaft diameter
62 mm - nominal outside diameter
7 mm - nominal seal height
NBR - Nitrile Butadiene Rubber
TC - double lip sealing configuration
The essential technical identification is:
25x62x7 + NBR + TC
This combination provides more precise identification than searching only for:
25x62x7 oil seal
When selecting a replacement for the 25x62x7 NBR TC shaft seal, verify at least:
d = 25 mm
D = 62 mm
H = 7 mm
NBR material
TC double lip configuration
presence of the auxiliary dust lip
primary sealing-lip geometry
shaft surface condition
housing bore dimensions
operating medium
operating temperature
shaft speed
pressure conditions, where applicable
Matching only the:
25x62x7 mm
dimensions does not establish complete technical interchangeability.
Material and sealing profile are also essential selection parameters.
Before installing a new rotary shaft seal, inspect the shaft surface in the area contacted by the primary sealing lip.
Check particularly for:
wear grooves
scratches
corrosion
mechanical damage
sharp edges that could damage the sealing lip during installation
A new seal installed on a significantly worn shaft surface may not operate correctly even when the nominal seal dimensions are correct.
The housing bore should also be inspected for contamination or damage before installation.
Product type: Radial shaft seal / rotary shaft seal / oil seal
Dimensions: 25x62x7 mm
Shaft diameter d: 25 mm
Outside diameter D: 62 mm
Height H: 7 mm
Material: NBR
Material name: Nitrile Butadiene Rubber
Design: TC
Configuration: Double lip
Primary lip: Dynamic sealing lip
Additional lip: Auxiliary dust lip
Exact NBR compound: Not confirmed
Hardness: Not confirmed
Operating temperature range: Not confirmed for the exact product
Maximum shaft speed: Not confirmed
Maximum pressure: Not confirmed
Hydrodynamic direction: Not confirmed
The nominal dimensions are 25x62x7 mm: d = 25 mm, D = 62 mm and H = 7 mm.
The seal is manufactured from NBR - Nitrile Butadiene Rubber.
For this product, TC identifies a double lip configuration with a primary dynamic sealing lip and an auxiliary dust lip.
Yes. It is a double lip rotary shaft seal / oil seal with a primary sealing lip and an additional auxiliary dust lip.
Its nominal shaft diameter is 25 mm. The nominal outside diameter is 62 mm and the axial height is 7 mm.
No. Shaft seals with identical dimensions may differ in material, lip configuration and other construction features.
This should not be assumed. The required sealing profile, material and operating conditions should be checked before substitution.
The essential technical identification is 25x62x7 mm + NBR + TC + double lip.
25x62x7 NBR TC is a double lip radial shaft seal / rotary shaft seal / oil seal with nominal dimensions of 25x62x7 mm. It is manufactured from NBR - Nitrile Butadiene Rubber. The TC configuration incorporates a primary dynamic sealing lip and an auxiliary dust lip. Dimensions: d = 25 mm, D = 62 mm, H = 7 mm.
Data sheet
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25x62x7 NBR TC is a double lip radial shaft seal / rotary shaft seal. Dimensions: d = 25 mm, D = 62 mm, H = 7 mm. Material: NBR - Nitrile Butadiene Rubber. The TC design incorporates a primary dynamic sealing lip and an auxiliary dust lip. Identification: 25x62x7 + NBR + TC.
Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4.
24h Shipping. Available from stock in Poland for delivery across the EU.
