SKF precision bearings - promshop.info

1 Берг АБ Тел. (495)-228-06-21, факс (495) 223-3071. SKF precision bearings Берг АБ Тел. (495)-228-06-21, факс (495) 223-3071. Берг АБ Тел. (495)-228-06-21, факс (495) 223-3071. Contents Made by SKF stands for excellence. It symbolises A precision bearing range to meet all needs .. 3. our consistent endeavour to achieve total quality in Selection of bearing type .. 4. everything we do. For those who use our products, Made by SKF implies three main benefits. 1 Angular contact ball bearings .. 9. Reliability thanks to modern, efficient products, General information.

2 9. based on our worldwide application know-how, optim- precision angular contact ball bearings .. 16. ised materials, forward-looking designs and the most Hybrid precision angular contact ball bearings .. 28. advanced production techniques. Cost effectiveness resulting from the favourable ratio 2 Cylindrical roller bearings .. 37. between our product quality plus service facilities, and General information .. 37. the purchase price of the product. Double row cylindrical roller bearings .. 40. Single row cylindrical roller bearings .. 46. Market lead which you can achieve by taking advantage of our products and services.

3 Increased operating time and reduced down-time, as well as 3 Single direction angular contact thrust ball bearings 49. improved output and product quality are the key to General information .. 49. a successful partnership. Single direction angular contact thrust ball bearings .. 52. 4 Double direction angular contact thrust ball bearings 55. General information .. 55. Double direction angular contact thrust ball bearings 58. 5 Gauges .. 63. Ring gauges .. 64. Internal clearance gauges .. 65. 6 Tolerances .. 66. P4A for radial angular contact ball bearings .

4 67. PA9A for radial angular contact ball bearings .. 68. SP for radial cylindrical roller 69. UP for radial cylindrical roller 70. P4/P2 for angular contact thrust ball bearings .. 72. P4C for angular contact thrust ball bearings .. 72. SP for angular contact thrust ball bearings .. 73. UP for angular contact thrust ball bearings .. 73. The SKF Group a worldwide organisation .. 74. 2. Берг АБ Тел. (495)-228-06-21, факс (495) 223-3071. Берг АБ Тел. (495)-228-06-21, факс (495) 223-3071. A precision bearing range to meet all needs It is not always possible to satisfactorily sizes, and one speciality is complete in the high precision bearing manufac- meet the demands of bearing applica- spindle units, with or without integral ture and application within the SKF.

5 Tions using the bearings for general drive. Group. engineering purposes listed in the SKF General Catalogue. This is par- Universal competence Brief and to the point ticularly true where machine tools are As the world's leading manufacturer The product tables in this brochure concerned, as the requirements placed of ball and roller bearings , SKF not contain all the data required for the on machine tool bearing arrangements, only offers a very comprehensive selection of a precision bearing and its those of work spindles, are very range of bearings , but has a wealth of arrangement design.

6 A description of demanding. experience with bearing applications of the particular features of the particular bearings for such applications must all kinds. SKF has taken the lead, for bearing type precedes each table sec- have high running accuracy and high example, in defining general design tion. General information regarding stiffness as well as low friction if high principles for machine tool bearing bearing tolerances as well as internal machining accuracy is to be obtained arrangements, which have gained clearance or preload is also included. with the lowest possible operating acceptance in the machine tool indus- More in-depth information on bearing temperatures at high speeds and min- try.

7 SKF competence in this sector technology, for example, the selection imum temperature changes over the has been built up over the years in of bearing size, or lubrication, will be whole speed range. close cooperation with customers found in the SKF General Catalogue SKF produces special precision bear- worldwide. or in specialist handbooks and cata- ings to meet these exacting demands. The more complex the technical logues produced by SKF. The general This brochure contains the standard demands, particularly in new develop- information contained in the SKF cata- range of SKF precision bearings .

8 Of ments, the more reason to tap the logue 3700 precision bearings will course, SKF also produces many other comprehensive know-how available at also be found useful. precision bearings , particularly in larger SKF and to recognise the competence Берг АБ Тел. (495)-228-06-21, факс (495) 223-30713. Берг precision bearing range АБ all to meet needs Тел. (495)-228-06-21, факс (495) 223-3071. Selection of bearing type concerned it is primarily determined by the accuracy of form and position of The bearings shown in this brochure the raceways on the bearing rings.

9 Have been designed for machine tool When selecting the appropriate toler- and other applications where high ance class for a particular bearing , the demands are placed on accuracy and maximum radial runout of the inner speed capability. Each of the bearing ring (Kia) is generally the determining types has characteristic properties factor for most applications. which make it especially suitable for To facilitate comparison, Table 1. particular applications. gives values of the radial runout for In order to fully exploit the full poten- different tolerance classes and bearing tial of SKF precision bearings and to bore diameters.

10 Facilitate bearing selection the proper- Normally, the maximum values of ties of the various types are explained. Kia given in the table are much higher When designing a precision bearing than the actual values. This means, for arrangement the following factors have example, that if bearings with class SP. to be considered, for example: tolerances are used, running accura- cies of under 3 m can be achieved. accuracy, available space, loads, stiffness, accommodation of axial displacements, speed, and heat generation. Depending on the application, one or other of these factors will have a dom- inant influence.