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Oil Seal Models and Specifications
Views: 0 Author: Site Editor Publish Time: 2025-06-30 Origin: Site
Oil seals are essential components in various mechanical systems, designed to prevent fluid leakage and contamination. Understanding the different models and specifications of oil seals is crucial for selecting the right seal for your application. Here’s a comprehensive guide on oil seal models and their specifications:
1. Common Oil Seal Types and Models
TC Type (Double-Lip Oil Seal)
Description
: TC type oil seals are double-lip seals with an outer rubber cover. They are widely used in modern industrial applications.
Features
:
Inner lip for sealing fluid.
Outer lip for excluding dust and debris.
Suitable for applications where both fluid retention and contamination prevention are required.
Applications
: Engines, transmissions, hydraulic systems, and industrial machinery.
SC Type (Single-Lip Oil Seal)
Description
: SC type oil seals are single-lip seals with an outer rubber cover.
Features
:
Single lip for sealing fluid.
Suitable for applications where contamination is minimal.
Applications
: Pumps, valves, and other industrial equipment.
SD Type (Low-Speed Double-Lip Oil Seal)
Description
: SD type oil seals are designed for low-speed applications.
Features
:
Double lips for enhanced sealing.
Suitable for applications with lower rotational speeds.
Applications
: Low-speed industrial machinery and equipment.
DG Type (High-Speed Double-Lip Oil Seal)
Description
: DG type oil seals are designed for high-speed applications.
Features
:
Double lips for enhanced sealing.
Suitable for high-speed rotational applications.
Applications
: High-speed industrial machinery and automotive applications.
W Type (Springless Oil Seal)
Description
: W type oil seals do not have a spring and rely on the elasticity of the material for sealing.
Features
:
Suitable for low-pressure applications.
Lower friction and wear.
Applications
: Low-pressure systems and applications where spring tension is not required.
TCK Type (Discontinuous Fiber Oil Seal)
Description
: TCK type oil seals use discontinuous fibers for enhanced durability.
Features
:
Improved resistance to wear and tear.
Suitable for dusty environments.
Applications
: Industrial machinery and equipment exposed to dust and debris.
VC Type (V-Lip Oil Seal)
Description
: VC type oil seals have a V-shaped lip for sealing.
Features
:
V-shaped lip for enhanced sealing.
Suitable for applications where a high degree of sealing is required.
Applications
: Hydraulic systems and high-pressure applications.
TCJ Type (PTFE Coated Oil Seal)
Description
: TCJ type oil seals have a PTFE (polytetrafluoroethylene) coating for improved durability.
Features
:
PTFE coating for low friction and wear resistance.
Suitable for applications requiring low friction and high durability.
Applications
: High-performance industrial machinery and automotive applications.
SA1J Type (Chemical Resistant Oil Seal)
Description
: SA1J type oil seals are designed for chemical resistance.
Features
:
Made from materials with excellent chemical resistance.
Suitable for applications involving chemicals and corrosive substances.
Applications
: Chemical processing and industrial applications involving corrosive substances.
KA3J Type (Dust and Chemical Resistant Oil Seal)
Description
: KA3J type oil seals are designed for applications involving dust and chemicals.
Features
:
Enhanced resistance to dust and chemicals.
Suitable for harsh environments.
Applications
: Industrial machinery and equipment exposed to dust and chemicals.
2. Standard Oil Seal Dimensions
Oil seals are typically specified by their inner diameter (ID), outer diameter (OD), and thickness (T). Here are some common dimensions:
Model
Inner Diameter (ID)
Outer Diameter (OD)
Thickness (T)
TC 30x50x7
30 mm
50 mm
7 mm
TC 35x60x8
35 mm
60 mm
8 mm
TC 40x70x10
40 mm
70 mm
10 mm
TC 45x80x12
45 mm
80 mm
12 mm
TC 50x90x15
50 mm
90 mm
15 mm
TC 55x100x18
55 mm
100 mm
18 mm
TC 60x110x20
60 mm
110 mm
20 mm
TC 65x120x22
65 mm
120 mm
22 mm
TC 70x130x25
70 mm
130 mm
25 mm
TC 75x140x28
75 mm
140 mm
28 mm
3. Material and Spring Options
Materials
: Common materials include Nitrile Rubber (NBR), Fluoroelastomer (FKM), Silicone Rubber (VMQ), and Polyurethane.
Spring Options
: Some oil seals come with a spring to ensure consistent contact with the shaft, providing a better seal under varying conditions.
4. Technical Parameters
Temperature Range
: -30°C to +200°C (for most materials).
Maximum Speed
: Up to 25 m/s (depending on the material and application).
Maximum Pressure
: Up to 0.05 MPa (for most applications).
5. Installation and Maintenance
Installation
: Ensure the oil seal is properly seated in the housing and the shaft is clean and free from defects.
Maintenance
: Regularly inspect oil seals for wear and replace them if any signs of damage are detected.
By understanding the different types, dimensions, and specifications of oil seals, you can select the appropriate seal for your application, ensuring reliable performance and longevity.
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Qing Shan Sealing Company Info
Locations：No.22 Beiding Industrial Zone, Ren County, Xingtai City, Hebei, China
