Bearing designation systems 7 order codes for bearings are made up of a combination of letters and numbers. Ball bearings pressed steel housed units designed for lightduty applications. Corrosion resistant units the corrosion resistant series is available in a wide array of sizes and styles, and units may be customized with a number of. Skf ybearings insert bearings the designations for skf ybearings differ somewhat from those described in the basic designation system and are covered in the relevant product section. As ball bearings usually cost less for a given shaft size they are considered first. For d bearing types, the bearing bores are stated directly or in an encoded form in accordance with din 6231. Bearing interchange from afbma skf 90 1 bc 2 03 3 j 4 pp 5 n 6 3 7 0 8 x 9 6 10 2 3 3 18 1 zz 5 n 6 4 c3 8, 7 10 ht51 9 symbols afbma skf description 1. Within each order code, a distinction is made between the basic designation and any suf. Each bearing company may create their own prefixes. The complete skf bearing nomenclature may consist of a basic designation with or without one or more supplementary designations.
Ball bearing units ball bearing units fyhbea rin g om s. Rs provides a better seal but more rolling friction than 2z. For example, the code 6224 stands for a deepgroove ball bearing with a bore size of 120 mm. Bearings marked as popular items are of sizes that skf produces for. Deep groove ball bearings with filling slots have the same. Singlerow angular contact 7000, 7000p, and 7000pj series. Ensure that you have the correct torque for the application by referring to skf 457377 torque specification guide or contact the vehicle manufactures dealer. The open bearings are available in sizes from 20 to 1 800 mm bore dia meter and with cylindrical or tapered. Bearings with mental shields and rubber seals are prelubrecated by some grease. In 1986, the bearing division was acquired by the skf group, which is an international manufacturing and. Improved bearing steel skf explorer bearings feature an extremely clean and homogenous steel with a minimum number of inclusions. Ball bearing manufacturing company he compan established itself as a maor supplier of precision ball bearings to the automotie and machiner industries a maor innovation b strom was engineering serice proided to customers to aid in proper choice of ball bearings their use and guidance for mount ing and maintenance.
The designations for certain skf bearing types are either not covered, or are only partially covered. To download a pdf document of this catalogue and for information about important. Convert your bearing dimensions to bearing numbers here. Skf bearing designations not covered by the basic system. When more than one special feature is to be identified, suffixes are provided in the order shown in the table below. Bearing interchange from afbma skf 90 1 bc 2 03 3 j symbols 4 pp 5 n 6 3 7 0 8 x 9 6 10 2 3 3 18 1 zz 5 n 64 c3 8, 7 10 ht51 9 symbols afbmaskf description 1. For bore code 04 upwards, the general rule is to multiply by 5 to obtain bore size in mm. The cross section of skf cylindrical roller bearings is optimally utilized. The second digit of a bearing patter number indicates the bearing series. The making of an skf explorer bearing achieving the outstanding levels of skf. Bearing with rubber seal on one side, one side open. All skf precision bearings catalogs and technical brochures. Bearing type bc bl bn ba bt 6xxx xxx 7xxx cd 7xxx cc 7xxx acd 7xxx b conrad.
Combining more than a century of world leading bearing technology, from skf selfaligning knowledge and cooper split roller bearing expertise, skf cooper are excited to announce the launch of the new split spherical roller bearing range, available in open unsealed and sealed versions. This alphanumeric combination denotes the type, size and structure of the bearing. Basic designation system for skf standard metric ball and roller bearings. Single row angular contact ball bearing for universal pairing in backtoback, facetoface or tandem arrangement. Timken highperformance ej, em, emb spherical roller bearings are interchangeable with fag xlife. These bearings are included in the relevant product tables and are easily identified by an asterisk in front of the bearing designation. Timken highperformance ej, em, emb spherical roller bearings are interchangeable with skf explorer. Using the timken bearing interchange the timken bearing interchange lists manufacturers part numbers, manufacturer name and. Fag bearing part number designation and suffix there are hundreds of thousands of fag bearings part numbers, they are indicating different bearing types and structures, if you want to choose a suitable bearing for your industry machines, the first step is to identify the meaning of bearing designation and suffix. Bearing with snap ring and flange on the outer ring. The complete designation is always marked on the bearing package.
Thus, we can easily identify now that in case of bearing 6305zz, the first digit 6 means the bearing type is single row deep groove ball bearing. Skf bearing product catalogue online nodes bearing. A twodigit number is used for bore sizes from 20 mm to 480 mm. To provide the highest levels of quality and customer service, these products are available worldwide through skf sales channels. This is possible because bearing tolerances are standardized internationally, predominantly by iso. Since then, time certainly hasnt stood still, and neither has skf. Supplementary designations suffixes it should be noted that the appearance of a suffix in the alphabetical list, which follows, does not mean that a particular variant is available. Skf bearing designation nomenclature nodes bearing. Trw bearings division entered a new period of growth. Skf cylindrical roller bearings better by design skf milestones leading to the single row cylindrical roller bearings of today 1909. Here, r4 means, it is an inch bearing whose bore size is 416 th or you can say 14 th of an inch. Nsk bearing designation nomenclature prefixes suffixes.
Theay are available for low noise and low vibration. To understand it better, lets take an example of inch bearing. This number is multiplied by five to give the bore size. S16 bearing rings dimensionally stabilized for use at operating temperatures up to 200 c 392 f s1 s1 s11 s2 bearing rings dimensionally stabilized for use at operating temperatures up to 250 c 482 f s2 s2 s3 bearing rings dimensionally stabilized for use at operating temperatures up to 300 c 572 f s3 s3. These are denoted by the type and iso series 60, 62, 63, followed by. That includes installation, lubrication, and maintenance. Through a better understanding of the mechanisms that lead to reduced bearing life, owing to the effects of such factors, we can improve bearing design and operation. The diameter and length of the rollers and the wall thickness of the rings and retaining flanges have been optimized to provide maximum bearing service life fig. Skf 3307 ac3 double row angular contact bearing 35 mm bore, 80 mm od, 1. A twodigit number is used for bore sizes from 20mm to 480mm. Skf ball bearings, roller bearings, track runners, plain bearings, bearing housing, linear motion. Rolling bearings of different manufacturers which have the same standardized code in accordance with din 623 are interchangeable. Bo single row radial ball bearing separable magneto type bl single row radial ball bearing with filling slots and maximum load capacity 1 double row radial ball bearing selfaligning 2 double row radial ball bearing selfaligning.
Skf explorer bearings are interchangeable with previously specified skf standard bearings of the same type and size. Two of the most important are lubrication and contamination. As a rule the significance of the letter is bound to the particular bearing or bearing series. Our deep groove ball bearings deliver reliable performance in a wide range of applications and conditions. Abma the abma code applies to ball bearings including conrad type, maximum capacity and angular contact, as well as cylindrical roller, selfaligning spherical roller, and thrust ball or roller. With superfinished raceways and controlled geometries, our premium design helps ensure consistent quality. Through a strong network of more than 10 000 distributors and dealers within the vehicle, our spare parts for. The exceptions to this are bearings with bore diameter of 22mm, 28mm, 32mm and 500mm and above. Skf has a unique understanding of rotating equipment and how machine components and industrial processes are interrelated. How to identify bearings by bearing number calculation. This seal handbook contains complete product data for the selection of skf shaft seals, speedisleeves, wear sleeves, hydraulicpneumatic products, defender bearing isolator, vrings and heavy duty df hddf seals. After r, the size of the bearing will be given in 116 th of an inch. For sizes greater than those shown above we recommend the use of the skf. We focus on providing system repair products with a wide range coverage so that you dont have to look very far for the parts you need.
Axial cylindrical roller bearings comprise axial cylindrical roller and cage assemblies and shaft and housing locating washers. Lowvolume bearings and sizes are manufactured in a. In 1976, the division built a new facility at gainesville, georgia, to specialize in highvolume bearing production. It can accommodate axial loads in both directions, in addition to radial loads, even at high speeds. Interchange single row deep groove ball bearings description interchange nsk skf torrfaf fag mrc inch rxx rxx sxx rxx rxx extra small 6xx 6xx 3x 6xx 3x extra light 60xx 60xx 91xxk 60xx 1xxk light 62xx 62xx 2xx 62xx 2xxs medium 63xx. Nu style single row nu style bearings have two machined flanges on the outer ring and no flanges on the inner ring n style single row n style bearings have two machined flanges on the inner ring and no flanges on the outer ring, with rollers and cage on the inner ring. For example, the code 6318 stands for a deep groove ball bearing with a bore size of 90 mm.
Designed to simplify mounting on side plate or frametype housings. It is important that you properly torque the spindle nut to ensure optimum bearing life. Evolution 25 technology bearing life is influenced by many factors. The check box can be selected to add the calculation result in the report. The designations of most skf rolling bearings follow a system that may consist of a basic designation with or without one or more prefixes andor suffixes basic bearing designation system. Fag bearing designation nomenclature prefix suffix.
How to identify bearings by bearing number calculation and. Bearing symbols for life calculation c basic dynamic rating. Skf maintenance and lubrication products industrial gp. This is only a partial list of common modification codes. After consulting many uses, the current bearing heating range not only has class leading performance but is designed. Click on the download icon to download the report in the. International standardization of bearing numbers has been examined by iso but not adopted. The result of a single calculation or multiple calculations can be selected in the report. The individual product sections refer to the information in this section, where.
A ball manufacturing plant was acquired in 1964 at winstead, connecticut. The bearings have particularly small axial section height, have high load carrying capacity and high rigidity and can support axial forces in one direction. Two identical steel stampings house a clamptype bearing with a spherical o. Structure of rolling bearing codes each rolling bearing is identified by a code which specifies its type, dimensions, tolerances, clearance and, in some cases, further essential characteristics. Skf bearing suffix identify designs or variants, which differ in some way from the original design or from the current basic design. Skf bearing designation nomenclature the designations of most skf rolling bearings follow a bearing designation system. Skf angular contact ball bearings your key to longer. The bore code is derived from the diameter d of the fag bearing bore. To facilitate international bearing interchangeability and economical bearing production, bearing boundary dimensions have been standardized by the international standards. Showmetheparts is changing how the world finds replacement parts for their vehicles. Participation in standardization of boundary dimensions 1950.
Nomenclature guide to common bearing types for reference use only. The individual product sections refer to the information in this section, where needed. If the desired life or load capacity cannot be achieved with a ball bearing then a tapered roller bearing should be considered see page 182 for tapered roller bearing life calculations. Determine your bearing numbers designation youtube. Series of a bearing denotes the toughness of the bearing. Import data and price of skf bearing 10 under hs code 8482. Gurney started the manufacture of ball bearing machinery in jamestown, new york. Skf bearing catalogue contains the standard assortment of skf rolling bearings typically used in industrial applications. Bearing with a metal seal on one side, one side open. Skf cylindrical roller bearings always in the lead. The skf vehicle aftermarket boasts a product range of over 20 000 variations in unmatched quality. An example and the applicable options for spherical roller bearings are given below. In case of inch bearings, the bearing s first digit will be r.
The optimized cross section of skf cylindrical roller bearings enables manufacturers to downsize. Pros and cons of sourcing out replacement bearings. Search in skf precision bearings catalogs and technical brochures on directindustry and find the information you need in 1 click. Skf cooper launch new split spherical roller bearings. Spherical roller bearing of c design, but with retaining flanges on inner ring and machined cage 2.
Ball bearing manufacturing company he compan established itself as a maor supplier of precision ball bearings to the automotie and machiner industries a maor innovation b strom was engineering serice proided to customers to aid in proper choice of ball bearings their use and guidance for. As bearings distributor, nodes bearings supply a wide range of skf. Under torque of an axle nut will allow excessive movement causing uneven loading and excessive wear. Skf uses cookies on our web site to align the information shown as closely as possible to the visitors preferences and to tailor our web site user experience in general.
1539 650 799 1186 1146 74 1597 782 861 327 1002 674 948 543 1421 1103 831 1080 212 814 582 629 1314 1362 531 1459 234 274 51 973 646 661 218 299 1217 285 278 817