Table of Contents

1. Introduction
2. Standard Sizes for Oil Seals
3. Size Dimensions and Tolerances
4. Materials and Temperature Ranges
5. WUSS Company Solutions
6. Conclusion
7. References

Introduction

Oil seals, also known as rotary shaft seals, play a critical role in various mechanical systems by preventing lubricants from leaking out of the assembly while also blocking contaminants from entering. They are utilized in countless industrial applications and are manufactured in a range of standard sizes to meet diverse requirements.

Standard Sizes for Oil Seals

Oil seals are typically produced in accordance with international standards, such as the ISO (International Organization for Standardization) and DIN (Deutsches Institut für Normung). These standards ensure consistency and quality across different manufacturers. The sizes of oil seals are generally specified by their inner diameter (ID), outer diameter (OD), and width (W). The following provides examples of standard sizes:

• ID: Ranges from 6 mm to 300 mm
• OD: Ranges from 18 mm to 340 mm
• W: Typically ranges from 4 mm to 25 mm

Size Dimensions and Tolerances

Understanding the tolerances for oil seals is essential for ensuring optimal performance. The tolerances are usually guided by the standard that governs the seal's design. For instance, ISO 6194-1 specifies allowable dimensional deviations, focusing on maintaining minimal clearance between the shaft and seal to prevent leakage. A sample table of dimensions and tolerances might include:

• ID Tolerances: ±0.10 mm for sizes up to 50 mm
• OD Tolerances: ±0.20 mm for sizes up to 100 mm
• Width Tolerances: ±0.15 mm across most standard sizes

Materials and Temperature Ranges

Oil seals are constructed from a variety of materials, each suitable for specific operating conditions. Some common materials include Nitrile Rubber (NBR), Fluoroelastomer (FKM), and Silicone (VMQ). Temperature ranges for these materials are as follows:

• NBR: -40°C to +120°C
• FKM: -30°C to +200°C
• VMQ: -60°C to +180°C

WUSS Company Solutions

WUSS Company specializes in the production of oil seals and offers a wide array of solutions tailored to various industrial needs. The company's innovative design processes allow for enhanced durability and performance, even under challenging conditions. WUSS offers customization options and specializes in seals made from advanced materials like hydrogenated Nitrile and PTFE blends to cater to specific customer requirements.

Conclusion

Oil seals are a fundamental component in maintaining the integrity and efficiency of mechanical systems. By adhering to international standards, manufacturers ensure that these seals meet the necessary performance criteria. WUSS Company continues to lead in innovation by providing customized solutions that address the unique needs of their clientele.

References

• ISO 6194-1: Rotary shaft lip-type seals - Part 1: Nominal dimensions and tolerances
• DIN 3760: Rotary shaft lip seals
• Mechanical Seals and their Applications, Journal of Industrial Lubrication, 2020 Edition
• WUSS Company Product Catalog, 2023