TC Oil Seal ID 40 42 45mm FKM Rubber Dual Lip Rotary Shaft Seal Ring

Measure three dimensions on your equipment: the shaft diameter (this is the ID), the housing bore diameter (this is the OD), and the housing depth (this is the thickness). For example, a 40*60*8mm seal fits a 40mm shaft (≈1.57"), a 60mm bore (≈2.36"), and an 8mm deep housing (≈0.31"). All sizes in this listing follow the format ID × OD × Thickness in millimeters. If you are replacing an existing seal, the dimensions are typically stamped or molded on the seal face.

TC skeleton oil seals are generally designed for low-to-medium pressure dynamic sealing. 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 spindles or pressurized housings above this range, contact us to confirm suitability before ordering.

Yes. FKM (fluoroelastomer) rubber offers excellent resistance to heat, ozone, UV radiation, and a wide range of chemicals compared to standard NBR rubber. This makes FKM rubber oil seals generally well suited for outdoor machinery, agricultural equipment, and industrial environments with elevated temperatures or chemical exposure. FKM typically performs reliably from -20°C to +200°C (-4°F to +392°F).

These TC oil seals use metric dimensions and are generally compatible with shafts and housings manufactured to ISO and DIN metric standards. They are commonly used as direct replacements in European and Asian-spec gearboxes, pumps, and motors. Always verify that the ID, OD, and thickness match your housing specifications exactly — a seal that is even 1mm off in OD may not seal correctly.

A TC (double lip) oil seal has two sealing lips: the primary lip faces inward to retain lubricant inside the housing, while the secondary dust lip faces outward to prevent dirt, water, and debris from entering. This dual-lip design generally provides better contamination protection than single-lip (SC) seals, making TC seals the preferred choice for gearboxes, axles, and equipment operating in dirty or wet conditions.

FKM rubber is generally compatible with mineral oils, synthetic oils (PAO, ester-based), hydraulic fluids, fuels, and many solvents. It is not typically recommended for use with ketones (e.g., MEK, acetone), certain esters, or amines. If your application involves an unusual fluid, contact us to confirm compatibility before installation.

Yes. TC skeleton oil seals are among the most widely used seal types in gearboxes, hydraulic pumps, electric motors, axle housings, and other rotating shaft assemblies. The rigid steel skeleton ensures a secure press-fit in the housing bore, and the dual lip design handles both oil retention and dust exclusion in a single component.