Hydraulic Seal for Cylinders, Ideal for Coal Mine Applications

• Customization: Available
• Material: NBR
• Usage: Engine, Transmission, Rear Axle, Gearbox
• Type: Haplotype
• Speed: High Speed
• Pressure: Pressure Type
• Lip: Composite Lip
• Standard: Standard, Nonstandard
• Applicable Temperature: From Minus 60 Degrees to Plus 300 Degrees
• Scope of Application: Various Chemical Substances
• Custom Specifications: Customizability Can Reach up to 500 Centimeters.
• Transport Package: Packaging Bag, Cardboard Box
• Trademark: Anran
• Origin: China Hebei
• HS Code: 4016931000
• Production Capacity: 100000pieces/Year

Product Description

Product Description

Oil seals, also known as rotary shaft seals, are indispensable components in the realm of machinery. They expertly seal grease, fluids, and dirt, serving as the crucial barrier between stationary and moving parts within mechanical assemblies. Composed of three foundational elements, these seals are essential for maintaining the integrity and performance of any system.
A robust sealing material (like the rubber component), durable metal casings, and resilient springs form the core of this versatile sealing assembly. Together, they ensure longevity and reliability.
We offer an extensive array of types, including but not limited to: TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and TC4, each designed to meet specific needs.
Our selection of premium rubber materials caters to diverse operational demands, ensuring that our oil seals perform exceptionally under various environmental conditions. These high-quality rubber materials are engineered to withstand a broad spectrum of chemicals and extreme temperatures, delivering consistent performance in both high and low conditions.
[Oil seal material introduction]

Ding Rubber (NBR)	Temperature resistance of 100ºC, good oil resistance, wear resistance, anti-aging, good sealing effect.
silica gel (VMQ)	Temperature resistance of 200ºC, general oil resistance, high temperature resistance, good waterproof, non-toxic.
Fluorogel (FKM)	Temperature resistance of 280ºC, good oil resistance, wear resistance, high pressure resistance, corrosion resistance.
ethylene-propylene-diene misch-polymere (EPDM)	Temperature resistance of 150ºC, general oil resistance, corrosion resistance.
(PTFE)	Temperature resistance of 280ºC, good oil resistance, wear resistance, high pressure and corrosion resistance.
polyurethane (PU)	Temperature resistance of 90ºC, good oil resistance, wear resistance.

We offer the capability to customize non-standard oil seals using top-tier materials such as fluorine rubber, silicone rubber, fine rubber, and propylene rubber, tailoring solutions to specific requirements.

[Oil seal core structure type]

Single lip structure	Single channel sealing lip for low pressure reciprocating motion (e. g. automotive crankshaft oil seal)
Double lip structure	Two upper and lower sealing lips, a main seal (contact shaft), a secondary seal (dust), often used in high pressure environment
Composite lip structure	Main lip + dust lip + buffer spring (like type NOK TCV), can withstand both radial and axial forces
labyrinth packing	Multi-channel ring groove design to block oil by throttling effect (suitable for high-speed rotating axis)
Seal the oil swing ring	Metal ring rotating centrifugal oil swing with shaft (commonly used in gearbox gearbox)

[Key structural components of the oil seal]

Component name	Material selection	function declaration
seal(ing)lip	NBR/FKM/PTFE	Main seal surface, the contact shaft forms a dynamic seal
spring	Stainless steel / carbon steel	Provide lip pretension to compensate for wear
skeleton	PA6/PC	Fixed the sealing lip shape and transfer the mounting stress
Dust-proof lips	polyurethane elastomer	Blocking the entry of solid impurities (optional)
Self-lubricating coating	plumbago/PTFE	Reduce the friction coefficient and extend the life life

[Oil seal and sealing principle]
The oil seal ingeniously forms an oil film through the interaction between its lip and the shaft. This dynamic sealing effect is driven by the synergy of spring pressure and material elasticity. During rotation, the lip contracts due to frictional heat, thereby amplifying the sealing efficacy. When at rest, it maintains a snug fit to ensure continuous sealing performance.

[Oil seal application fields]
Our oil seals find extensive application across various fields, prominently in engines, gearboxes, hydraulic pumps, and reducers. They excel in environments subject to high temperatures, high speeds, and corrosive media where traditional seals might falter. Notably, PTFE oil seals provide remarkable longevity, outlasting conventional seals by up to 20 times, and adeptly sealing water, acid, gas, and other challenging media.

[Oil seal selection and installation]
To ensure optimal performance, consider the shaft's rotation speed, temperature, pressure, and the nature of the medium it handles. Proper installation is key: ensure the shaft is vertical to avoid tilting and apply a grease layer on the lip to minimize dry friction during operation.
Product Superiority:

1. Our commitment to excellence is reflected in our meticulous material selection and precision engineering. Our parts deliver unparalleled performance, stability, and are infused with cutting-edge automation technology.
2. Designed for resilience, our products showcase exceptional elasticity and wear resistance, guaranteeing stability even in the harshest environments.
3. Backed by a dedicated team of technical experts, we offer bespoke customization to meet our customers' unique needs, ensuring timely and effective solutions.
4. Our stringent adherence to a robust quality control system has earned us the trust of numerous prestigious enterprises worldwide, establishing us as a key supplier, directly or indirectly, to these global giants.