Roller bearings exhibit less elastic deformation than ball bearings. All books are in clear copy here, and all files are secure so dont worry about it. Selection of bearing size failure probability rating life average life life fig. Selection of bearing size is largely based on the load borne by, bearing life and reliability requirements.
To view or download the documentation, you will need the free adobe reader. The catalog is divided into four parts, labelled a through e. To provide the highest levels of service, skf endeavours to have its standard assortment match virtually all cus. Shaft size what is the shaft size at each bearing location. We want to thank you for your interest in this edition of our rolling bearing catalog. This procedure is commonly applied to deep groove ball bearings. Selection of bearing type according to the direction and magnitude of loads the magnitude and direction of loads greatly influence the selection of bearings. Study material includes the selection of bearings, their specific place of application, correct.
Bush bearing the outside of the bush is a driving fit interference fit in the hole of the casting where as the inside is a running fit for the shaft. In the crane selection, the ground bearing pressure must satisfy. If a file download message is received when attempting to view a pdf file, you may need to download the latest version of adobe acrobat. To what environment, materials, substances will it be exposed. These chapters are arranged in the order normally followed by a design. B standard type the design contents can be altered according to different bearing structures c exampleb indicates nominal contact angle40 for angular contact ball bearings, ant it d indicates the increased contact angle for tapered roller bearings. Together, the two companies have the widest product portfolio in the rolling bearing industry. Skf bearings catalogue pdf download skf bearing catalogue contains the standard assortment of skf rolling bearings typically used in industrial applications.
Selection of bearing type koyo bearings jtekt corporation. Ball and roller bearingsrolling bearingssupport tools. Bearings capable of supporting a radial load are often called journal or sleeve bearings, while those carrying an axial load are termed thrust bearings. Fag rolling bearings in rolling mills schaeffler group. Ball and roller bearings cad data of model numbers given in the catalog is available as an electronic catalog. Schaeffler group industrial brings together the industrial activities of ina and fag.
Generally, for the same dimensions, the cylindrical roller bearing stands heavy loads than the deep. This bearpractical applications an engineering guide for bearing selection by michael m. Potential for bearing failure due to wrong material selection under what conditions does your product need to function. In selecting bearings, the most important thing is to fully understand the operating conditions of the bearings. Engineering handbook 3 section i bearing symbols nonstandard variants section ii singlerow deep groove, type s singlerow maximum capacity, filling notch, type m selfaligning ball bearings doublerow angular contact, 5000 series. Ball bearing selection criteria e radialthrust factors if fafr is equal to or less than e. This catalogue follows a logical progression through selection of the correct bearing types, to the. Bearing selection free download as powerpoint presentation. The allowable space for bearings is generally limited. Product documentation is now available in a single location, free of charge for philips customers.
As a general guideline, the basic procedure for selecting the most appropriate bearing is shown in the following flow chart. A stepped shaft will require modifications to the housing and seals. Speed what is the shaft speed at the bearing location. To provide the highest levels of quality and customer service, these products are available worldwide through skf sales channels. When selecting bearings for new machines, unusual operating conditions, or harsh environments, please consult with nsk.
Downloading catalogspurchasing supportkoyo bearings jtekt. The main factors to be considered are listed in table 31, while bearing types are listed in table 32 table 31 selection of bearing type. You can also view our market and category specific catalogs below. However, initial selection is based on two critical parameters. How to prevent unnecessary costs, avoid production issues. General catalogue overview this new skf general catalogue contains almost all of the standard rolling bearings and accessories required by industrial equipment manufacturers, as well as those used for replacement purposes. Bearings catalogs and cad drawings services nsk global. Timken fafnir rubber seal that effectively seals the bearing with a heavy flare on the cylindrically ground o. In addition, the bearing life alone should not be the deciding factor in the selection of bearings. It has been revised with our customers in mind, and we hope it fills your needs. All kinds of ball bearings can be selected for smalldiameter shafts.
A steel backup plate supports the seal rubber and prevents the seal lip from inverting. Our deep groove ball bearings deliver reliable performance in a wide range of applications and conditions. With more than 40 000 products manufactured as standard, applications across some 60 industrial sectors can be covered. Bearing is defined by websters to be a support or supporting part a bearing is a component that allows for relative motion between parts your skeleton is the central structure that supports your body your bodys joints are bearings that allow different parts to move bearings can have many forms, but only two types. The bearing material used may be white metal babbit tinculeadantimony, copper alloy brass, gunmetal or aluminum alloy. Search by part specification, ntn part number, competitor part number, or drill down in a specific product category to order parts or download cad illustrations. Technical descriptions, selection of insert bearing units, and dimensional tables of units, such as pillow block type, takeup type, cartridge type, and ball bearing for units, are included in this catalog. Selecting the right puller for bearing removal depends on how. Basic load ratings are used to assess bearing capacity of technical indicators, basic load rating includes the basic dynamic load rating and the basic static load rating. To access, click on the links below and download the needed documentation.
Pdf engineering guide for bearing selection ahmad rohman. The concept of a bearing to lessen friction between an object and the surface over. Technical section principles of bearing selection and application the technical section has a simplified index allowing for easy identification of the separate chapters, which cover the basics of bearing technology as required for the design of a bearing arrangement. A selection of publications covering rolling mill bearing arrangements and fundamental subjects in bearing arrangement engineering, such as dimensioning, mounting and dismounting, lubrication and maintenance is given in the list on page 52 of this publication. Khonsari b fellow, stle louisiana state university, dept. Thermoplastic, stainless steel and nickel plated housings along with stainless steel bearing inserts for wash down applications are also available. Dmitri kopeliovich selection of bearing material suitable for a particular engine should be based on the following engine. This website uses cookies to improve your experience while you navigate through the website.
Find the exact bearing you need using ntn bearing finder, our powerful online catalog platform. First, the pc ratio, which is a measure of the load p on the bearing in relation to the dynamic capacity c, which is calculated according to international standards and quoted by all leading bearing manufacturers in their technical literature. To download a pdf document of this catalogue and for information. Sizing and selection tools, quick dimensioning, pump replacement tools, cad drawings, pump curves and other relevant data.
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