Rotary Shaft Seal 40x62x10 FKM / VITON TC - Double Lip Oil Seal

Rotary Shaft Seal 40x62x10 FKM TC - Technical Characteristics

The 40x62x10 FKM TC rotary shaft seal is designed to restrict lubricant leakage at the interface between a rotating shaft and a stationary housing.

Its double-lip construction provides two distinct sealing functions:

• The primary sealing lip helps retain the operating medium within the mechanical assembly.

• The auxiliary dust lip helps restrict the entry of external contaminants into the primary sealing area.

The standard TC construction incorporates a circumferential garter spring supporting the primary sealing lip.

The rubber-covered outside diameter provides static sealing between the oil seal and the housing bore.

FKM is a fluorocarbon elastomer used in sealing applications requiring compatibility with specific oils, lubricants and chemicals.

Its suitability depends on the particular FKM compound, operating temperature, shaft speed, pressure and lubrication conditions.

FKM TC Oil Seal 40x62x10 - Dimensions

The 40 mm inside diameter corresponds to the nominal shaft diameter.

The 62 mm outside diameter corresponds to the nominal housing bore diameter.

The 10 mm axial width defines the nominal width of the oil seal.

These dimensions do not independently establish shaft and housing tolerances, permissible shaft runout or required surface roughness.

What Does 40x62x10 FKM / VITON TC Mean?

40x62x10 - Nominal dimensions in millimetres, expressed as inside diameter, outside diameter and axial width.

FKM - The internationally recognised designation for a family of fluorocarbon elastomers used in technical sealing applications.

FPM - An alternative designation for the same general family of fluoroelastomers, commonly encountered in European technical documentation.

VITON - A registered trade name for specific fluoroelastomer materials. The term is also widely used commercially when referring to FKM seals. However, the FKM designation alone does not confirm that the seal contains genuine Viton-branded material.

TC - A double-lip radial shaft seal profile with a rubber-covered outside diameter, a spring-loaded primary sealing lip and an auxiliary dust lip.

Oil Seal - A common technical and commercial term for a radial shaft seal used to retain a compatible lubricant.

The TC designation identifies the general construction. It does not independently specify a particular operating temperature range, pressure rating, shaft speed, rubber hardness or shaft rotation direction.

TC Double Lip Rotary Shaft Seal Construction

Primary Sealing Lip

The primary sealing lip is manufactured from FKM and operates in dynamic contact with the rotating shaft surface.

Its function is to restrict leakage of the retained operating medium.

Effective sealing requires suitable shaft surface conditions, material compatibility and lubrication.

Garter Spring

The standard TC profile incorporates a circumferential garter spring supporting the primary sealing lip.

The spring helps maintain sealing contact between the elastomer and the shaft during operation.

The exact spring material depends on the manufacturer and specific seal execution.

Auxiliary Dust Lip

The second lip provides additional protection against external contamination.

It helps restrict the entry of dust and small particles into the primary sealing area.

The auxiliary lip does not automatically establish a specific ingress protection rating or suitability for continuous water immersion.

Rubber-Covered Outside Diameter

The TC profile features a rubber-covered outer surface.

This construction provides static sealing between the oil seal and the housing bore.

The rubber covering can accommodate minor surface irregularities within the limits permitted by the seal design and installation requirements.

Internal Metal Supporting Case

The standard TC construction incorporates an internal metal supporting element that maintains the seal's geometry.

The exact metal grade and construction details are manufacturer-dependent.

FKM / FPM Fluorocarbon Rubber - Material Properties

FKM is a family of fluorocarbon elastomers widely used in industrial sealing applications.

Compared with many conventional NBR compounds, FKM materials can offer improved resistance to elevated temperatures, ageing and exposure to certain oils and chemicals.

FKM is commonly used with compatible mineral and synthetic lubricants.

However, chemical resistance varies between FKM formulations.

Some ketones, esters, amines and alkaline media may be unsuitable for particular standard FKM compounds.

Therefore, compatibility must be assessed for the specific operating medium and elastomer formulation.

FKM and Operating Temperature

FKM is often selected for applications involving elevated temperatures.

Nevertheless, not all FKM oil seals have the same permissible operating temperature range.

The actual limits depend on the compound, sealing lip geometry, shaft speed, lubrication and operating conditions.

Without a manufacturer-specific datasheet, an exact maximum temperature, permissible pressure or shaft speed should not be assigned to this seal.

FKM TC vs Other Rotary Shaft Seal Variants

FKM TC vs FKM SC

Both profiles use fluorocarbon rubber.

TC incorporates an auxiliary dust lip, while SC is a single-lip construction.

The two variants are not automatically interchangeable.

FKM TC vs NBR TC

Both are double-lip profiles, but the sealing materials differ.

FKM and NBR have different thermal, mechanical and chemical properties.

An NBR TC seal should not automatically replace an FKM TC seal, even when the nominal dimensions match.

FKM TC vs VMQ TC

FKM is a fluorocarbon elastomer, while VMQ is silicone rubber.

Their chemical resistance, mechanical characteristics and thermal behaviour differ.

Correct selection depends on the operating medium and application requirements.

Alternative Designations and Reference Formats

Natural product designation variants include:

• Rotary Shaft Seal 40x62x10 FKM TC

• Oil Seal 40x62x10 FKM TC

• FKM TC 40x62x10

• FPM Rotary Shaft Seal 40x62x10

• Fluorocarbon Oil Seal 40x62x10 TC

• Double Lip Oil Seal 40x62x10 FKM

• 40x62x10 TC FKM Oil Seal

• 40x62x10 Viton Type Oil Seal

The profile designation AS is also used in some European catalogues for a comparable double-lip radial shaft seal construction.

However, AS and TC are not universally interchangeable without confirming the actual seal geometry and construction.

No manufacturer-specific catalogue number or OEM cross-reference is assigned without verification.

Applications of the 40x62x10 FKM TC Oil Seal

Double-lip TC radial shaft seals are used in mechanical assemblies where a rotating shaft passes through a stationary housing.

Their main functions are to retain a compatible operating medium and provide additional protection against external contamination.

FKM may be considered for applications involving elevated temperatures or specific oils and chemicals where its material properties are appropriate.

Typical application categories for this seal type include rotating shaft arrangements in industrial machinery, gearboxes and other power transmission assemblies.

These are general applications of the seal construction, not verified equipment-specific applications of this particular product.

The nominal dimensions and TC profile alone do not establish compatibility with any specific motor, gearbox, pump, vehicle or industrial machine.

Selection and Interchangeability

Before purchasing a 40x62x10 FKM TC oil seal, verify:

1. Nominal shaft diameter: 40 mm.

2. Nominal housing bore diameter: 62 mm.

3. Axial width: 10 mm.

4. Sealing material: FKM / FPM.

5. Double-lip TC construction.

6. Requirement for an auxiliary dust lip.

7. Outer case construction.

8. Compatibility with the operating medium.

9. Operating temperature, pressure and shaft speed.

10. Shaft surface condition and installation requirements.

Matching nominal dimensions of 40x62x10 mm do not guarantee interchangeability.

An FKM TC seal is not automatically interchangeable with an NBR TC, VMQ TC, FKM SC or another seal with different construction details.

Installation and Operating Considerations

Before installation, thoroughly clean the shaft and housing bore.

Inspect the shaft sealing surface for scratches, corrosion, burrs and wear grooves.

Protect the sealing lips when passing the oil seal over sharp edges, keyways or splines.

Press the seal evenly into the housing using an appropriate installation tool.

Do not apply installation force directly to the sealing lips or garter spring.

In conventional oil-retaining arrangements, the spring-loaded primary sealing lip faces the retained medium, while the auxiliary dust lip faces the external environment, unless the equipment documentation specifies otherwise.

Installation lubrication must be compatible with FKM and the operating medium.

Avoid operating the seal under insufficient lubrication unless the application documentation permits such conditions.

Store the seal in a clean environment, protected from contamination, deformation and unsuitable storage conditions.

Technical Specification

FAQ - Rotary Shaft Seal 40x62x10 FKM TC

1. What are the dimensions of the 40x62x10 FKM TC oil seal?

The nominal inside diameter is 40 mm, outside diameter is 62 mm and axial width is 10 mm.

2. What does TC mean in a rotary shaft seal?

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

3. Are FKM and FPM the same material?

Yes. Both designations refer to the same general family of fluorocarbon elastomers, although specific compounds can differ.

4. Is every FKM oil seal made from genuine Viton?

No. Viton is a registered trade name for specific fluoroelastomers. A seal described as FKM is not necessarily manufactured from Viton-branded material.

5. Does an FKM TC oil seal have an auxiliary dust lip?

Yes. The standard TC profile includes an auxiliary dust lip that helps restrict external contamination.

6. Is FKM more heat-resistant than NBR?

Many FKM compounds offer greater resistance to elevated temperatures than standard NBR materials. Exact operating limits depend on the compound and seal design.

7. Can an FKM TC seal be replaced with an NBR TC seal?

Not automatically. The materials have different chemical, thermal and mechanical properties. Compatibility must be verified for the operating conditions.

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

TC is a double-lip profile with an auxiliary dust lip. SC is a single-lip profile without the additional dust lip.

Rotary Shaft Seal 40x62x10 FKM / VITON TC - Key Product Information

Rotary Shaft Seal 40x62x10 FKM / VITON TC is a double-lip radial shaft oil seal with nominal dimensions of 40x62x10 mm. Its FKM/FPM fluorocarbon elastomer is used in sealing applications requiring compatibility with specific oils, chemicals and operating temperatures. The TC profile incorporates a spring-loaded primary sealing lip, an auxiliary dust lip and a rubber-covered outside diameter.