25X32X4TC FKM Metric Oil Seal Double-Lip Shaft Seal

This premium 25X32X4VTC metric oil seal is manufactured from brown FKM (Viton®) compound in 80 Shore A durometer. Designed with a double-lip (TC) style, it provides superior sealing performance by retaining lubricants while excluding dirt, dust, and contaminants. FKM seals are ideal for high-demand applications where heat, chemicals, and oils quickly break down standard nitrile seals. Choosing this seal ensures longer service life, reduced downtime, and better equipment protection.

Operating temperature: -20° to +400°F (–30° to +205°C)

Material & Performance Details

This oil seal is made from high-performance FKM (fluoroelastomer), a material chosen for its outstanding resistance to heat, oil, and aggressive chemicals.

• Material: FKM (Viton®)
• Durometer: 80 Shore A
• Color: Brown (standard for FKM)

Chemical Compatibility

• Excellent resistance to: oils, fuels, synthetic lubricants, mineral oils, hydraulic fluids, ozone, weathering, and many chemicals
• Limited capability with: hot water and low molecular weight organic acids
• Not compatible with: amines, esters of low molecular weight, ketones, glycol-based brake fluids

Sizes & Measurements

• Cross Section (CS): 4 mm (0.157 in)
• Inside Diameter (ID): 25 mm (0.984 in)
• Outside Diameter (OD): 32 mm (1.260 in)
• Part Number: 25X32X4VTC
• Style: TC (double-lip with spring)

Cross References

This seal style is directly interchangeable with leading brands:

• Freudenberg: BAUM / BAUMSL
• SKF: HMSA7
• Parker: TC
• Trelleborg: TRC
• Garlock: 94
• Dichtomatik: WAS
• NOK: TC

Applications & Use Cases

The 25X32X4TC FKM oil seal is widely used in gearboxes, pumps, motors, compressors, hydraulic systems, and automotive drive components. It is especially suited for high-temperature, high-speed, and chemically aggressive environments where NBR seals fail prematurely. Common industries include:

• Automotive & heavy truck
• Industrial machinery
• Chemical processing equipment
• Power transmission systems
• Agricultural & construction machinery

Key Specifications

• Material: FKM (Viton®)
• Durometer: 80 Shore A
• Color: Brown
• Certifications: Available in FDA and specialty grades on request
• Temperature Range: -20° to +400°F (–30° to +205°C)
• Pressure Rating: Standard TC seals handle up to 7 psi; special designs available for higher pressures

Why Buy from The O-Ring Store LLC

When you choose The O-Ring Store LLC, you gain access to:

• ISO9001:2015 certified quality processes
• Large USA stock for fast delivery
• Same-day shipping on in-stock items
• Custom sizes and compounds available
• Full lot traceability & documentation on request
• Expert technical support from our experienced sealing specialists
• Competitive pricing without compromising on quality

FAQs

Q1: What makes FKM oil seals better than nitrile (NBR) seals?
FKM seals provide superior resistance to high temperatures, fuels, and aggressive chemicals, making them the right choice for demanding industrial and automotive environments where NBR seals would degrade quickly.

Q2: Can this oil seal handle high shaft speeds?
Yes. FKM seals in TC style are suitable for high-speed rotary shafts with proper lubrication, making them reliable in gearboxes, pumps, and motors.

Q3: Is this oil seal interchangeable with other brands?
Yes. This 25X32X4TC seal cross-references directly with major brands like SKF, Parker, NOK, Trelleborg, Freudenberg, and Dichtomatik, ensuring easy replacement.