DMHUI TCV High Performance FKM Rubber Shaft Seal 40x62x11mm

Engineered for demanding hydraulic applications, this TCV-type oil seal is constructed from high-grade FKM (fluororubber) to deliver exceptional sealing performance under extreme conditions. With a 40mm shaft, 62mm bore, and 11mm width, it is designed for hydraulic pumps and motors where elevated temperatures, aggressive fluids, or high pressures are present. The TCV design features a double-lip configuration with a metal case and garter spring for reliable, long-lasting sealing.

Key Points

Premium Fluororubber Construction: Unlike standard NBR seals, FKM offers superior resistance to high temperatures (up to 200°C / 392°F), aggressive hydraulic fluids, chemicals, and ozone. This makes it the preferred choice for demanding industrial and mobile hydraulic applications.

TCV Double-Lip Design: The TCV configuration features a primary sealing lip for fluid retention and a secondary dust lip that actively excludes contaminants. The robust metal case provides structural integrity, while the garter spring maintains consistent lip contact pressure.

Wide Temperature Range: FKM material maintains flexibility and sealing performance across a broad range from -20°C to +200°C (-4°F to 392°F), ensuring reliable sealing in both cold starts and high-temperature operation.

Excellent Fluid Compatibility: Resistant to a wide range of fluids including mineral oils, synthetic hydraulic fluids (HFD, HFD-R), fuels, acids, and many chemicals where NBR would degrade.

Precision Metric Sizing: Manufactured to exact 40x62x11mm specifications for a perfect fit in compatible hydraulic pump and motor housings, ensuring immediate and effective sealing upon installation.

Product Info

Product Name: Skeleton Oil Seal 40x62x11mm
Seal Type: TCV (Spring-loaded Lip with Dust Lip, Metal Case)
Material: Fluororubber (FKM) + Metal Skeleton+Spring
Dimensions: 40mm (Shaft) x 62mm (Bore) x 11mm (Width)
Primary Application: Hydraulic Pumps, Hydraulic Motors, Industrial Equipment
Package Includes: 1 x TCV Double Lip Oil Seal (Size 40x62x11mm)

What Is a TCV Oil Seal?
A TCV oil seal features a primary sealing lip for lubricant retention and an auxiliary dust lip that helps reduce the entry of external contaminants. This design is widely used in hydraulic equipment where cleanliness and reliable sealing are important.

Why Choose FKM?
The choice of FKM (fluororubber) material is significant. While NBR (nitrile) is suitable for general-purpose hydraulic applications with standard mineral oils at moderate temperatures, FKM offers:
Higher temperature resistance: Up to 200°C vs. 100°C for NBR
Better chemical resistance: Compatible with synthetic fluids, fuels, and many aggressive media
Superior aging resistance: Maintains properties longer under heat and ozone exposure

Installation Tips
Clean and inspect the shaft and housing before installation.
Lightly lubricate the sealing lip.
Press the seal evenly into place using a suitable installation tool.
Avoid damaging the lip during shaft insertion.

FAQ

Q: Is this seal suitable for high-pressure hydraulic pumps?
A: Yes. The TCV design with metal case and garter spring is specifically engineered for hydraulic pump and motor applications. The robust construction maintains sealing integrity under pressure fluctuations common in hydraulic systems.

Q: Can I use this seal with synthetic hydraulic fluids?
A: Yes. FKM is compatible with most synthetic hydraulic fluids including HFD, HFD-R, and phosphate esters, as well as mineral oils. This is one of the key advantages over NBR, which has limited compatibility with some synthetic fluids.

Q: What is the operating temperature range for this FKM seal?
A: The FKM material offers an operating temperature range of -20°C to +200°C (-4°F to 392°F), depending on the specific fluid and application conditions. This makes it suitable for high-temperature hydraulic systems where NBR would fail.

Q: How do I install this seal correctly?
A: Clean the shaft and housing bore thoroughly. Inspect the shaft for wear or scoring. Apply a thin film of clean hydraulic oil or assembly lubricant to the seal lip and shaft. Use a flat installation tool or appropriately sized socket that contacts the outer metal case only. Press the seal squarely into the housing bore with even pressure. The double-lip side (with the dust lip) must face the external environment.

Q: Is this an original OEM part?
A: No, this is a high-quality aftermarket replacement manufactured to exact 40x62x11mm TCV specifications. It is designed to match OEM performance standards.

Note: This product is an aftermarket replacement component. Always verify the dimensions from your original seal or equipment manual prior to purchase. FKM offers superior temperature and chemical resistance but has a narrower temperature range on the low side compared to NBR — ensure your application does not require operation below -20°C. Proper installation is essential for optimal sealing performance.

Trust in quality, choose DMHUI
DMHUI delivers precision sealing solutions for hydraulic and industrial equipment, helping you keep your machinery operating smoothly and reliably.