TC 16x36x7 NBR - Double Lip Rotary Shaft Oil Seal

Rotary Shaft Seal 16x36x7 NBR TC Oil Seal Double Lip

Product Description

The TC 16x36x7 NBR is a double-lip radial shaft oil seal designed for rotating shafts with a nominal diameter of 16 mm. Its dimensions are 16x36x7 mm, and it is manufactured from nitrile butadiene rubber (NBR). The standard TC design features a rubber-covered outer diameter, a spring-loaded primary sealing lip and an additional dust-exclusion lip. The manufacturer of this specific seal has not been identified.

The seal is designed to retain lubricants within rotating mechanical assemblies while helping prevent dust and external contaminants from entering the sealing area. Its double-lip construction provides additional protection compared with conventional single-lip oil seals.

Technical Specifications

The nominal dimensions, NBR material and double-lip construction are based on the supplied product identification. Exact operating limits and manufacturer-specific construction details require confirmation.

What Does TC 16x36x7 NBR Mean?

The designation identifies the seal construction, nominal dimensions and elastomer material.

TC is a commonly used designation for a double-lip radial shaft oil seal featuring a rubber-covered outer diameter, a spring-loaded primary sealing lip and an auxiliary dust lip.

16x36x7 mm identifies three nominal dimensions:

• 16 mm - nominal shaft diameter.

• 36 mm - nominal housing bore diameter.

• 7 mm - axial seal width.

NBR stands for nitrile butadiene rubber, an elastomer commonly used in radial shaft seals because of its resistance to many mineral oils and industrial greases.

The original AO designation is used for certain double-lip oil seal constructions in European cataloguing systems. TC is a common international designation for a comparable construction, although exact equivalence must be confirmed for the manufacturer.

Double Lip Construction and Operating Principle

The TC 16x36x7 NBR oil seal is designed to form a sealing interface between a stationary housing and a rotating shaft.

A conventional TC design incorporates a rubber-covered outer body, an internal reinforcing element, a spring-loaded primary sealing lip and an auxiliary dust lip.

Primary sealing lip

The main sealing lip contacts the rotating shaft and helps prevent lubricant leakage.

In standard TC constructions, a circumferential garter spring maintains radial contact pressure between the sealing lip and the shaft.

Auxiliary dust lip

The additional lip is normally positioned toward the external environment.

Its function is to reduce the entry of dust, dirt and small contaminants into the primary sealing area.

The auxiliary lip provides additional protection but does not automatically make the seal suitable for pressure washing, immersion or severe abrasive environments.

NBR Material Properties and Chemical Resistance

NBR is a synthetic elastomer widely used in industrial oil seals and other sealing components.

Its characteristics include:

• Good resistance to many mineral lubricating oils.

• Compatibility with numerous industrial greases.

• Suitable flexibility for many conventional shaft sealing applications.

• Wear resistance dependent on the rubber compound and operating conditions.

• Mechanical properties appropriate for many standard rotating shaft sealing systems.

NBR is not universally compatible with all chemicals.

Resistance to synthetic lubricants, fuels, hydraulic fluids and other media depends on the specific rubber formulation and operating conditions.

The permissible operating temperature of this particular seal cannot be established without manufacturer-specific technical documentation.

TC Double Lip vs SC Single Lip Oil Seals

The additional dust lip is the principal construction difference between conventional TC and SC radial shaft seals.

Although both designs may share identical nominal dimensions, differences in lip geometry, friction and contamination protection must be considered before replacement.

Alternative Designations and Search References

The product may also appear under the following descriptive names:

• TC 16x36x7 NBR

• NBR TC Oil Seal 16x36x7

• 16x36x7 TC Oil Seal

• TC 16x36x7 Double Lip Oil Seal

• 16x36x7 NBR Rotary Shaft Seal

• Double Lip Nitrile Oil Seal 16x36x7

• 16x36x7 TC Rubber Oil Seal

The designation AO 16x36x7 NBR may be used in other cataloguing systems for a comparable double-lip seal construction.

These names are descriptive references and should not be interpreted as confirmed OEM part numbers or proof of full interchangeability.

Selection and Interchangeability

Before selecting the TC 16x36x7 NBR oil seal, verify the dimensions and operating requirements of the equipment.

Important factors include:

• Nominal shaft diameter of 16 mm.

• Nominal housing bore diameter of 36 mm.

• Installation width of 7 mm.

• TC double-lip construction.

• NBR material compatibility.

• Presence of the primary sealing lip and auxiliary dust lip.

• Shaft rotational speed.

• Operating temperature.

• Lubricant type and chemical composition.

• Pressure conditions.

• Shaft surface condition and installation tolerances.

Identical dimensions do not guarantee complete interchangeability.

Oil seals from different manufacturers can vary in sealing lip geometry, rubber formulation, spring characteristics and operating limits.

Typical Applications

TC double-lip NBR radial shaft seals are commonly used in mechanical systems requiring lubricant retention and additional protection against external contamination.

Potential applications for this type of seal include:

• Industrial gearboxes.

• Mechanical drive assemblies.

• Rotating shaft housings.

• Lubricated transmission components.

• Selected industrial machinery.

These are typical applications for the seal category rather than verified OEM applications of this exact TC 16x36x7 NBR product.

Installation and Maintenance

Before installation, clean the shaft and housing bore thoroughly. Check the shaft contact area for grooves, scratches, corrosion and sharp edges.

Use a suitable installation tool to apply even pressure to the seal body. Avoid applying direct force to the sealing lips.

In conventional lubricant-retention applications, the spring-loaded primary sealing lip normally faces the lubricant, while the auxiliary dust lip faces the external environment.

The shaft contact surface and, where specified, the space between the lips should be lubricated with a compatible medium according to the manufacturer's installation instructions.

Avoid dry running unless the seal is specifically designed for such conditions.

Unused seals should be stored in a clean, dry environment and protected from deformation, contamination and unsuitable environmental exposure.

Frequently Asked Questions

1. What are the dimensions of the TC 16x36x7 NBR oil seal?

The nominal shaft diameter is 16 mm, the housing bore diameter is 36 mm and the seal width is 7 mm.

2. What does TC mean in an oil seal designation?

TC commonly identifies a double-lip radial shaft oil seal with a rubber-covered outer diameter, a spring-loaded primary sealing lip and an auxiliary dust lip.

3. What is the difference between TC and SC oil seals?

A conventional TC seal includes an additional dust lip, while an SC seal normally has only one primary sealing lip.

4. What does NBR mean?

NBR stands for nitrile butadiene rubber, a material widely used in oil seals because of its compatibility with many mineral oils and greases.

5. Are AO and TC oil seals the same?

AO and TC may describe comparable double-lip constructions in different cataloguing systems. Exact equivalence depends on the manufacturer and must be verified before replacement.

6. Can a TC 16x36x7 seal replace a single-lip oil seal?

Not automatically. The additional dust lip may affect friction, lubrication requirements and operating characteristics.

7. Which direction should a TC double-lip oil seal face during installation?

In typical oil-retention applications, the main spring-loaded sealing lip faces the lubricant, while the auxiliary dust lip faces the external environment.

8. Are all 16x36x7 NBR oil seals interchangeable?

No. The material, sealing lip configuration, spring construction and application requirements must be checked before replacement.

TC 16x36x7 NBR - Key Information

TC 16x36x7 NBR is a double-lip radial shaft oil seal with nominal dimensions of 16x36x7 mm. Manufactured from nitrile butadiene rubber, its conventional TC construction combines a spring-loaded primary sealing lip with an auxiliary dust lip. The seal is designed for lubricant retention and additional protection against external contamination in suitable rotating shaft applications.

The product is available from simmering.pl, a specialist supplier of industrial seals and bearings with stock in Lublin, Poland, and international shipping, including worldwide destinations.