TC Oil Seal 130–140mm ID 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 140mm shaft in a 170mm bore with a 14mm housing depth requires a 140×170×14mm seal — listed as "140*170*14mm" in the variant selector. Always verify all three values; an incorrect OD will not seal the bore, and an incorrect thickness may prevent the housing cover from closing.

Quick inch conversions: 130mm ≈ 5.12", 135mm ≈ 5.31", 140mm ≈ 5.51"; 150mm ≈ 5.91", 170mm ≈ 6.69", 180mm ≈ 7.09".

TC-type radial lip seals are generally designed for low-to-moderate pressure applications — typically up to approximately 0.05 MPa (7 psi) static pressure. Shaft surface speeds are generally suitable up to around 4–8 m/s depending on the specific size and lubrication conditions. For high-pressure hydraulic circuits or very high-speed spindles, a dedicated hydraulic or PTFE-lip seal is recommended instead.

Yes. FKM rubber offers strong resistance to water, humidity, and weathering. The dual-lip design adds a secondary exclusion lip that blocks dirt, dust, and moisture from entering the housing — making these seals well-suited for agricultural equipment, construction machinery, and other outdoor rotating assemblies exposed to the elements.

These are metric TC-type oil seals generally conforming to ISO 6194-1 dimensional standards. They are designed for metric shafts and bores. If your equipment uses imperial-dimensioned housings (e.g., inch-based bore diameters), verify that the metric OD matches your bore closely enough for a proper press fit — or contact us to confirm compatibility before ordering.

FKM (fluoroelastomer) rubber typically operates continuously from approximately -20°C (-4°F) to +200°C (+392°F), with short-term excursions up to around +230°C. This makes FKM a strong choice for high-temperature gearboxes, engine timing covers, and industrial reducers where standard NBR (nitrile) seals would harden and crack prematurely.

FKM rubber is generally compatible with mineral gear oils, PAO-based synthetic lubricants, ester-based fluids, most hydraulic fluids, and many fuels. It is not recommended for use with ketones (e.g., MEK, acetone), certain concentrated esters, or hot steam. Always cross-reference your lubricant's technical data sheet for elastomer compatibility before installation.

Clean the housing bore and shaft surface thoroughly. Lightly coat the seal lips and the outer diameter with the same lubricant used in the application. Use a seal driver or a flat pressing plate sized to the OD to press the seal squarely into the bore — never strike the seal face directly with a hammer. Ensure the primary (main) lip faces toward the oil side of the housing. Check that the seal sits flush or slightly below the bore face as required by your assembly.