TC Skeleton Oil Seals — ID 10/12/13/14mm FKM Rubber Dual Lip Rotary Shaft Seal

Measure three dimensions with calipers: the shaft diameter (ID), the housing bore diameter (OD), and the housing depth (thickness). For example, a 12mm shaft in a 28mm bore with a 7mm housing depth requires a 12*28*7mm seal — that's 12mm (≈0.47") × 28mm (≈1.10") × 7mm (≈0.28"). Always verify all three dimensions against the variant list before ordering. If replacing an existing seal, the size is typically stamped on the seal face or listed in your equipment's parts manual.

TC skeleton oil seals are generally designed for low-to-medium pressure applications. They are typically rated for shaft speeds up to 4–8 m/s and pressures up to approximately 0.05 MPa under standard operating conditions. For high-speed or high-pressure applications, contact us to confirm suitability before ordering.

Yes. FKM (Viton) rubber offers excellent resistance to water, humidity, and a wide range of chemicals including petroleum-based oils, fuels, and many solvents. The dual-lip TC design adds a secondary dust lip that helps exclude water, mud, and airborne contaminants, making these seals generally well-suited for outdoor, wet, and dirty environments.

These are metric TC-type oil seals compatible with standard metric shafts. The ID dimensions — 10mm, 12mm, 13mm, and 14mm — correspond to common metric shaft sizes used in automotive gearboxes, differentials, small engines, hydraulic pumps, and agricultural equipment worldwide. They are not designed for imperial (inch) shaft sizes.

FKM (Viton) rubber typically withstands continuous operating temperatures from -20°C (-4°F) to +200°C (+392°F). This makes FKM seals a strong choice for high-heat applications such as engine compartments, turbocharger housings, and industrial machinery where standard NBR (nitrile) seals may degrade prematurely.

Clean the housing bore and shaft thoroughly. Lightly lubricate the seal lip with the fluid being sealed (e.g., gear oil or engine oil). Press the seal squarely into the bore using a seal driver or a flat block that contacts the outer edge of the seal — never hammer directly on the seal face or lip. Ensure the seal sits flush or slightly below the housing surface. Avoid nicking or folding the lip during installation.

TC seals have a dual-lip design: a primary sealing lip that retains oil and a secondary dust lip that excludes contaminants from the outside. SC seals have only a single primary lip. TC seals are generally preferred for applications where both oil retention and dirt/water exclusion are needed, which covers most automotive and industrial shaft sealing scenarios.

In most cases, yes — provided the dimensions (ID × OD × thickness) match the OEM specification exactly. These are standard metric TC-type seals that are generally interchangeable with OEM seals of the same dimensions. Always cross-reference the OEM part number dimensions against the variant size listed here before ordering.