Audited Supplier
NBR
Engine, Transmission, Rear Axle, Gearbox
Haplotype
High Speed
Pressure Type
Composite Lip
Standard, Nonstandard
From Minus 60 Degrees to Plus 300 Degrees
Various Chemical Substances
Customizability Can Reach up to 500 Centimeters.
Anran
Packaging Bag, Cardboard Box
China Hebei
4016931000
Product Description
Oil seals are also referred to as rotary shaft seals. They are commonly used to seal grease, liquids, or dirt. The oil seal is an essential component of any rotating and moving assembly, stabilizing the space between stationary and moving parts in mechanical equipment. Typically, an oil seal consists of three fundamental elements:
A sealing material (rubber component), metal casings, and springs. It is a versatile sealing assembly.
Types include: TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and TC4, among others.
We offer a diverse selection of rubber materials for the manufacturing of oil seals, ensuring suitability for various operating conditions. These high-performance rubber materials can endure a range of chemicals and extreme temperatures, whether high or low.
[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. |
Customizable non-standard oil seals can be produced using materials such as fluorine rubber, silicone rubber, fine rubber, and propylene rubber.
[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 creates an oil film through the contact between the lip and the shaft, achieving dynamic sealing by utilizing spring pressure and material elasticity. When rotating, the lip contracts due to frictional heat, thereby enhancing the sealing effect; when stationary, it maintains contact to preserve the seal.
[Oil seal application fields]
Widely used in engines, gearboxes, hydraulic pumps, reducers, and other equipment, particularly in scenarios involving high temperatures, high speeds, corrosive media, or instances where traditional rubber oil seals have failed. For instance, PTFE oil seals can last up to 20 times longer than conventional oil seals and are capable of sealing water, acid, gas, and other media.
[Oil seal selection and installation]
The rotation speed, temperature, pressure, and medium characteristics of the shaft should be considered comprehensively. Install the vertical shaft to prevent tilting and apply grease to the lip to reduce dry grinding.
product superiority:
- We meticulously select the optimal materials and produce parts that exhibit high performance, stability, and are equipped with advanced automation.
- Our products boast excellent elasticity and wear resistance, ensuring stability even in the most extreme environments.
- With a comprehensive team of technical experts, we are able to customize products for our customers and provide timely solutions.
- We strictly adhere to our quality control system, and have become a direct or indirect supplier to many renowned enterprises worldwide.
