| Customization: | Available |
|---|---|
| Material: | NBR |
| Usage: | Engine, Transmission, Rear Axle |
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Oil seals, also known as rotary shaft seals, are indispensable for any machinery involving rotation or movement. Their primary function is to prevent leakage of grease, liquids, or the intrusion of dirt, safeguarding the mechanical integrity of equipment. By maintaining a stable barrier between stationary and moving components, oil seals ensure smooth operation. Typically, an oil seal comprises three essential elements:
A versatile combination of a sealing material (rubber component), robust metal casings, and durable springs, making it a highly adaptable sealing assembly.
Our range includes a variety of types such as TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and the innovative TC4, among others.
At Ningbo Zhongmu Rubber Products Co., Ltd, we pride ourselves on our extensive selection of rubber materials tailored for oil seal manufacturing. Each material is specifically engineered to perform under challenging operational conditions, offering exceptional resistance to diverse chemicals and withstanding extreme temperatures, whether blistering or freezing.
[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. |
| 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) |
| 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 |
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