TC Skeleton Oil Seal Ring FKM Double Lip Seals — ID 5mm to 10mm

Measure three dimensions: the shaft inner diameter (ID), the housing bore outer diameter (OD), and the housing depth (thickness). All three must match your application. For example, an 8 × 22 × 7mm seal has an 8mm (≈5/16") ID, 22mm (≈7/8") OD, and 7mm (≈9/32") thickness. When in doubt, measure twice and cross-reference your equipment manual or the original seal markings.

FKM (Fluoroelastomer, also known by the trade name Viton®) is a synthetic rubber that generally withstands temperatures from approximately −20°C to +200°C (−4°F to +392°F) and resists petroleum oils, hydraulic fluids, and many chemicals. It is typically chosen over standard NBR seals in high-heat or chemically aggressive environments such as high-performance gearboxes, industrial pumps, and engine applications.

Yes. The double-lip design includes a secondary dust lip that generally helps exclude water, dirt, and contaminants from reaching the bearing. FKM also resists moisture and mild corrosive exposure better than standard rubber compounds, making these seals suitable for outdoor machinery, agricultural equipment, and marine-adjacent applications in most cases.

TC-type radial shaft seals are generally rated for low-to-moderate shaft surface speeds (typically up to around 4–8 m/s depending on size and lubrication) and are designed for low-pressure applications (generally under 0.05 MPa / 7 psi). For high-pressure or high-speed applications, confirm specifications with your equipment manufacturer before installation.

Yes. All dimensions are expressed in metric (mm) and the TC skeleton seal profile generally conforms to ISO 6194 / DIN 3760 standards. They are compatible with metric shafts and housings. If your equipment uses inch-based dimensions, use the mm-to-inch conversions listed in the spec table above to find the closest match — for example, 10mm ≈ 3/8", 25mm ≈ 1".

Clean the housing bore and lightly lubricate the seal lip with the fluid it will be sealing. Press the seal in squarely using a flat driver or dedicated seal installation tool — never hammer directly on the seal face. Ensure the seal sits flush or slightly below the housing face. Protect the lip from sharp keyways or threads by using a protective sleeve or tape during installation.

All three packing options contain the identical seal — only the quantity per order differs. The 5 PCS and 10 PCS packs offer a lower per-unit cost and are useful for maintenance kits, fleet repairs, or keeping spares on hand. Select the quantity that best matches your project needs from the variant selector above.

In most cases, yes — provided the ID, OD, and thickness match the original seal exactly and the FKM material is compatible with your application's fluid and temperature range. The TC skeleton profile is an industry-standard geometry. Always verify dimensions against the original seal or equipment service manual before installation.