Rotary Shaft Seal 100x125x12 FPM - Double Lip Oil Seal

Reliable rotary shaft seal for demanding industrial and automotive use

High durability, excellent resistance to oils and greases

Precision engineering for rotary sealing and shaft protection

Meta title: Rotary Shaft Seal 100x125x12 FPM Double Lip Oil Seal
Meta description: Precision rotary shaft seal 100x125x12 FPM with double lip design. High resistance to oils and grease for industrial and automotive seals. 24h delivery.

Product Overview and Technical Specification

The Rotary Shaft Seal 100x125x12 FPM is a high-performance double lip oil seal engineered to deliver long service life, enhanced sealing efficiency, and robust protection in harsh environments. Designed for both industrial applications and automotive systems, this shaft sealing ring offers reliable rotary sealing where fluid containment and contaminant exclusion are critical.

With dimensions 100x125x12 mm, this rotary oil seal fits a wide range of shaft diameters commonly used in heavy machinery, gearboxes, pumps, engines, and hydraulic systems. The double lip design ensures dual barriers against fluid leakage: the primary sealing lip maintains contact with the rotating shaft to retain lubricants, while the secondary dust lip protects from particulates, dirt, and moisture. This configuration significantly improves overall sealing efficiency compared to single lip oil seal designs.

The sealing element is constructed from high-quality FPM (fluoroelastomer), known for its outstanding resistance to oils, greases, fuels, heat, and chemicals. FPM materials maintain resilience across a broad temperature spectrum and resist hardening or cracking under prolonged exposure to aggressive media. This makes the seal ideal for both hydraulic and automotive seals, as well as other industrial applications requiring consistent performance under cyclical loads and variable speeds.

A sturdy metal reinforcing case stabilizes the seal assembly in the housing, ensuring precise fit and radial alignment. Integrated garter spring tension maintains consistent contact pressure against the shaft, enhancing sealing integrity even at higher rotational speeds.

Key Features

• Precision rotary shaft seal with double lip design

• Size: 100x125x12 mm

• Material: FPM fluoroelastomer for superior chemical and thermal resistance

• Dual sealing lips for fluid retention and particulate exclusion

• High durability in industrial and automotive applications

FAQ - Frequently Asked Questions

What is a double lip oil seal?
A double lip oil seal has two sealing surfaces: the primary lip prevents oil leakage, while the secondary lip protects against external contaminants like dust and water.

How does this rotary shaft seal differ from a single lip design?
Double lip seals offer improved sealing reliability and contamination resistance, making them better suited for demanding environments.

Which materials are best for oil resistance and high temperature?
FPM (fluoroelastomer) provides excellent resistance to oils, greases, fuels, and elevated temperatures, outperforming standard elastomers in industrial and automotive settings.

How do I select the right shaft seal size?
Measure the shaft diameter (inner dimension), housing bore (outer dimension), and seal width to match the required 100x125x12 mm specifications.

Can this seal be used in hydraulic applications?
Yes, the robust design and material resistance make this oil seal suitable for hydraulic systems, engine seals, gearbox applications, and other rotary sealing needs.