The numbers on an oil seal, also known as a shaft seal or rotary seal, provide important information about its dimensions, material, and design specifications. Understanding these numbers is crucial when selecting the right oil seal for a specific application. Here's a breakdown of the typical numbering system used for oil seals:
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Shaft Diameter (ID or Inner Diameter):
The first set of numbers usually represents the shaft diameter or the inner diameter (ID) of the oil seal. This measurement is critical because it indicates the size of the shaft around which the oil seal will be installed. For example, if the number is 25, it signifies that the oil seal is designed for a shaft with a 25-millimeter diameter.
Housing Bore Diameter (OD or Outer Diameter):
The second set of numbers corresponds to the housing bore diameter or the outer diameter (OD) of the oil seal. This measurement is crucial as it indicates the size of the bore or cavity in the housing where the oil seal will be placed. For example, if the number is 40, it means the oil seal is designed to fit into a bore with a 40-millimeter diameter.
Rubber Skeleton Oil Seal
Width (W):
The third set of numbers or letter represents the width of the oil seal. It specifies the radial dimension of the seal, indicating how thick or wide the oil seal is. For example, if the number is 7, it means the oil seal has a width of 7 millimeters.
Lip Type or Designation:
Some oil seals may have additional letters or codes indicating the lip type or special design features. These codes specify the sealing lip material, configuration, or any special features that the oil seal may have. Common lip types include single lip (S), double lip (D), and triple lip (T).
Material Code:
In certain numbering systems, a letter or code may be used to indicate the material composition of the oil seal. Different materials may be chosen based on factors like temperature resistance, chemical compatibility, and application requirements.
For example, if you have an oil seal with the number "25-40-7," it can be interpreted as follows:
Inner Diameter (ID): 25 millimeters
Outer Diameter (OD): 40 millimeters
Width: 7 millimeters
Understanding these numbers is crucial when replacing or specifying oil seals for machinery or equipment. It ensures compatibility with the shaft and housing dimensions and helps maintain effective sealing performance. When in doubt, it's recommended to refer to the manufacturer's documentation or consult with a supplier to ensure the correct oil seal is selected for the intended application.
Truck Oil Seal
Specialized in Truck oil seals solutions - NNK Oil Seals
Wherever you need to prevent leaks, remove contaminants, control pressure, or reduce friction, the mission of an automotive oil seal manufacturer is to help you find the right sealing solution for your specific application requirements and business needs. That's why NNK offers a wide range of seals for regular cars, trucks, buses, coaches, trailers, and automotive parts.
truck oil seals typically consist of three basic components
The sealing element, the metal housing and the spring. The purpose of the sealing element is to stop the leakage of fluid between the shaft and the housing. When it is held in a hole or recess, the metal housing will provide rigidity and strength to the seal. The spring will help make the sealing element more effective. All materials must be selected according to the environment in which the oil seal will work.
If you are looking for more details, kindly visit Truck Oil Seal Wholesale.
Types of Truck Oil Seals
There are many types of oil seals on trucks, and there are four categories according to the installation location: truck engine oil seals, truck gearbox oil seals, truck axle oil seals, and truck wheel hub oil seals.
1.The front crankshaft oil seal of the engine and the rear crankshaft oil seal of the engine play the role of sealing the oil.
2.The gearbox shaft oil seal, the rear oil seal of the gearbox shaft, seal the gear oil of the gearbox type.
3.Differential oil seal between axles (also called input oil seal), output oil seal and driving bevel gear oil seal.
4.Wheel hub oil seal, half shaft oil seal.
Features
Sealing, Dustproof, Prevents hydraulic oil and gas leakage, Reciprocating operation, Dustproof, Contaminant removal, Double steel housing design, Structural enhancement, Sealing, Enhanced dustproof, Dirt and sludge removal, OD ACM/ID FPM, Helical design, Reduces friction, Seals, Dustproof, Protects shafts and bearings from dust, grit, mud and other contamination.
Applicable
brands
SCANIA, Volvo, Mercedes-Benz, MAN, Renault Trucks, Isuzu, Hino, Mitsubishi, Toyota
Location
Industrial machinery, industrial motors, vehicle starter motors, gearboxes, multi-purpose seals, shock absorbers, hydraulic cylinders, cylinders, pneumatic rods, axles, drive shafts, agricultural spare parts, engine crankshafts, camshafts, starters, trailers, heavy trucks, agricultural machinery, hubs on heavy machinery.
NNK and truck oil seals
In order to meet the needs of trucks for seals, NNK has conducted in-depth research on truck oil seals for decades. According to the working environment of truck oil seals, the characteristics of different applied vehicle series, and combined with its own experience, the truck oil seals produced not only have strong sealing performance, but also anti-skid and wear-resistant. The fit is also super high. At present, it has been used in flatbed trucks, fence trucks, van trucks, warehouse-type trucks, tank trucks, dump trucks, etc. If you need truck oil seals, contact us.
When maintaining heavy vehicles, it's important to source reliable truck oil seal and truck engines seal products to ensure optimal performance. For those in need of oil seal truck components, finding a reputable oil seals for heavy vehicles factory is crucial. These factories specialize in producing high-quality oil seals for heavy vehicles products, which are essential for preventing leaks and maintaining the integrity of the vehicle's systems. If you're in the market for truck seal products, consider purchasing from a truck seal factory that offers wholesale oil seals for heavy vehicles to meet your needs in bulk.
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