Bearing shield material. These are available in a variety of materials and configurations. Bearings are available with different types of shields and seals, commonly referred to as closures. Aug 11, 2025 ยท Bearing Shields and Seals: Protection for Maximum Performance Bearings are vital components in mechanical systems, and their lifespan depends directly on protection against external agents such as dust, moisture, and debris. NTNBall Bearings Shield and Seal Types Machinery is being made smaller and more compact; the same is demanded of bearings. The materials described here are the most commonly used. While seals are constructed from various elastomeric materials which means it is designed to contact the bearing inner circle with the lip of the seal. Schatz makes bearings with carbon or stainless steel shields. The selection of shields and seals is largely dependent on your desired application and environment, but where do you start in specifying your requirements? This guide provides a technical introduction to bearing shields and seals, covering the three main options: the metal shield, contact seals and non-contact seals. Bearing Material Grade & Composition What Materials are Ball Bearings Made From? The bearing industry uses different materials for the production of the various bearing components. Standard shield and seal configurations are called out in the individual bearing tables. These closures are not always essential; however shielded and sealed bearings provide much better protection from contamination and help retain the bearing lubricant. Shields and seals are designed to provide this protection, ensuring efficiency, durability, and reduced maintenance costs. Buna N, PTFE lip seals, and special seals are available. They simplify shaft design, are maintenance-free, and are the bearing of choice for an increasing number of applications. Shield Design Non-Contact Shields (ZZ Components and materials A typical rolling bearing consists of the following components: An inner ring An outer ring Balls or rollers, as rolling elements A cage SKF supplies several bearing types capped with a seal or shield on one or both sides. Shield or Metal Seals Shields and metal seals are vital components used in bearings to provide a physical barrier against contaminants and retain lubrication within the bearing assembly. Bearings capped on both sides are factory-filled with grease. They should NOT be used as a basis for design specifications for quality control. Seals, shields, and end covers are components used to protect bearings from contaminants and retain lubricant, ultimately extending bearing life. NTN seal and shield type ball bearings are built to meet these trends. When selecting components for rotating machinery, understanding the difference between bearing seal protection types is critical for long-term performance. . Shielded bearings are metallic, and there is no exposure between the shield bore and the bearing inner ring. Although seals and Motion has seals, shields, and end covers filtered by material, product type, bore diameter, seal type, shaft diameter, and end cap type. BEARINGS SHIELDS AND SEALS A shield (non-contact) or seal (contact) is often installed to retain lubricant and to prevent contamination from entering the bearing raceways. The bearing materials are processed to achieve desirable properties to maximize bearing performance and life. Some bearing closures are removable. Discover more at TFL. These seals are commonly constructed from metal materials and are designed to protect bearings from various external elements, ensuring optimal performance and longevity. Whether you're specifying a sealed roller bearing, choosing the right bearing seals, or installing a felt seal for bearing housing systems, your choice directly affects reliability, maintenance, and operating conditions. Material Options for Bearing Shields (YX SHIELD) *The information contained herein are typical values intended for reference and comparison purposes only. Learn the differences between bearing seals and shields, their functions, and how to choose the right one for your application. 0ofqyz7 oq c9o k2q 67n m5y chlw8v cknbv omzb cow