Timken-Small-Bore-Metric-Seals-Catalog
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Timken-Small-Bore-Metric-Seals-Catalog - 1

CYLINDRICAL ROLLER BEARING CATALOG TIMKEN® SMALL BORE METRIC SEALS CATALOG

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ABOUT THE TIMKEN COMPANY The leading authority on tapered roller bearings, Timken today applies its deep knowledge of metallurgy, tribology and mechanical power transmission across a variety of bearings and related systems to improve reliability and efficiency of machinery and equipment all around the world. Timken (NYSE: TKR; www.timken.com) engineers, manufactures and markets bearings, gear drives, belts, chain and related products, and offers a spectrum of powertrain rebuild and repair services. TIMKEN® OIL SEALS – SMALL BORE METRIC 2016 OVERVIEW. . . . . . . . . . . . . . . . . . . . ....

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TIMKEN OVERVIEW Timken offers an extensive line of sealing solutions for original equipment manufacturers and the aftermarket. This line of industrial seals adds value to the company’s portfolio of friction management solutions. The seals are backed by the company’s experienced technical support and distribution networks, giving distributors a single source for a wide range of bearing and value-added extras to help keep equipment running optimally. We designed this catalog to help you find the Timken seals best suited to your equipment needs and specifications. Timken® Small Bore Metric...

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DISCLAIMER This catalog is provided solely to give you analysis tools and data to assist you in your product selection. Product performance is affected by many factors beyond the control of Timken. Therefore, the suitability and feasibility of all product selection must be validated by you. Timken products are sold subject to Timken's terms and conditions of sale, which include its limited warranty and remedy, which terms may be found at www.timken.com/ termsandconditionsofsale. Please consult with your Timken sales engineer for more information and assistance. Every reasonable effort has...

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TIMKEN® SMALL BORE METRIC SEALS CATALOG

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ENGINEERING The following topics are covered within this engineering section: Oil Seal Nomenclature & Components . . . . . . . . . . . . . . . . . . . . . . . . . 6 Oil Seal Model Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Elastomer Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Chemical Resistance Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Shaft Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Seal Outside Diameter...

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OIL SEAL NOMENCLATURE AND COMPONENTS • OIL SEAL MODEL TYPES • ELASTOMER MATERIALS Seal Width Fitting Face Garter Spring Sealing Lip Front Face Shaft Size Back Face Sealing Edge OIL SEAL MODEL TYPES TABLE 1. OIL SEAL MODEL TYPES

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CHEMICAL RESISTANCE GUIDE • SHAFT INFORMATION High Speed The following guide should be treated as a general guideline for elastomer performance when exposed to common chemicals. For seal use in applications with various chemicals or other chemical compounds not listed, please contact your Timken sales engineer. See table 3 below. TABLE 3. CHEMICAL RESISTANCE GUIDE Ratings: 1 = Can be used with little to no effect. 2 = Can be used but caution must be taken with respect to operating conditions. 3 = Can be used for a short period of time. 4 = Cannot be used. SHAFT SPEED The operating shaft...

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ENGINEERING SEAL OUTSIDE DIAMETER TOLERANCE • SEAL WIDTH TOLERANCE SHAFT MISALIGNMENT AND RUN-OUT Shaft misalignment and run-out will affect the efficiency and durability of an oil seal. Acceptable misalignment is dependent on shaft speed, shaft diameter, oil seal material and model type. Acceptable misalignment, in regards to seal diameter and basic shaft speed, can be found in the below diagram. This diagram should be used as a general guide to determine permissible seal misalignment. If large amounts of shaft misalignment and run-out are present in your application, please contact your...

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SHAFT AND HOUSING MANUFACTURING STANDARD TABLE 6. SHAFT AND HOUSING MANUFACTURING STANDARD Fig. 5. Shaft parameters. Fig. 6. Housing parameters.TIMKEN* SMALL BORE METRIC SEALS CATALOG

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SPECIAL HOUSING DESIGNS OIL SEAL DESIGN CONSIDERATIONS • SPECIAL HOUSING DESIGNS OIL SEAL DESIGN CONSIDERATIONS When designing the housing, it is important to consider ease of seal installation. The two diagrams below illustrate common housing designs. No matter how you design the housing, you must ensure that all components are referenced off of the same datum plane so that the oil seal is not installed at an angle. Without a datum plane, a high internal pressure or light-metal housing may cause leakage. In such a case, an end plate can be used to firmly fix the seal. See Fig. 7 above....

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ENGINEERING INSTALLATION INSTALLATION PRE-INSTALLATION CHECKS INSTALLATION METHOD 1. The shaft and housing dimensions should be checked prior to installation. 2. The oil seal inside diameter (I.D.), outside diameter (O.D.), and width dimensions should also be checked prior to installation. 3. The end surfaces of the shaft and housing should be inspected for damage and proper chamfer before installation. 4. The oil seal lip must be inspected for damage or deformation. Also, ensure that the spring is located behind the main lip and that it is not rusted. Before the seal is fitted to the...

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ENGINEERING INSTALLATION INSTALLATION CONSIDERATIONS AFTER INSTALLATION 1. Do not clean the seal. 2. If the equipment must be painted, the seal lip riding surface on the shaft must be free from paint. 3. Do not reuse removed seals. Used seals must be discarded. 4. After the seal has been installed, optimum seal performance is not achieved until the seal has been broken-in during operation. If the shaft has a thread/keyway, the seal riding surface diameter needs to be larger than the diameter of the thread/keyway. If this is not possible, then a tool must be used to facilitate the oil seal...

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ENGINEERING ORDERING ORDERING For standard seals located in this catalog, please reference the example part numbers below. If there are any questions regarding part numbers or special order seals, feel free to contact your Timken sales engineer. See Figs. 16 and 17 below. Model Type This model type is a rubber O.D. seal with one spring loaded sealing lip. With only one sealing lip, this seal can either retain lubricant or exclude contaminants depending on orientation. It cannot do both simultaneously. Model Type This model type is a rubber O.D. seal with two sealing lips. The main sealing...

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