Spherical roller bearings production started with technical. Higher costeffectiveness and operational security with xlife fag spherical roller bearings have proved highly effective wherever high loads are present and there is a need to compensate for shaft deflections andor misalignment of bearing seats. Needle roller bearings with inner ring, with polyamide cage series nkitn nkitn permissible axial displacement s f b r d d r 103 051 s 103 079 for the design and lubrication of the bearing arrangement and for fitting of the bearings, follow the guidance in ina catalogue 307. The 3rd and 4th digits of the bearing number relate to the bore size of the bearing, numbers 00 to 03 have a designated bore size depending on the number. They serve almost exclusively to indicate individual components of complete bearings or to designate miniature bearings. This kind of ball bearing has a spherical outer race, allowing the axis of the bearing to wander around. Rings and rollers are made from casehardened alloy steel of bearing quality to provide superior fatigue life and reliability. While each manufacturer uses their own numbers, there are a few. View notes bearing nomenclature from mechanical me41267 at university of hannover. Koyo ball, needle, and roller bearing nomenclature. The rolling elements are separated and held in position by cages or other retaining devices. The contents cover basic designations for ball and roller bearing series and their prefixes and suffixes. International standardization of bearing numbers has been examined by iso but not adopted. To download a pdf document of this catalogue and for information.
The operating temperature of a sealed spherical roller bearing is linked to the grease and the material of seals. Each bearing is engineered to exact oem specifications using the highest quality materials, offering the. An example and the applicable options for spherical roller bearings are given below. This is important because misalignment is one of the big causes of bearing failure. Nachi deepgroove ball bearings are available in a wide range of series defined by the jisiso standard dimension plan and are also made to meet specialized. Nsk bearing nomenclature consist of basic numbers and supplementary symbols. Kbc bearings fullline catalog is 244 pages and is broken down into fully index sections to quickly access the information you are looking for. How to ordernomenclature bearing reference guide ultra kleen ez kleen extreme duty setscrew ball bearing grip tight dlok ball bearing setscrew ball bearings how to order there are two ways to specify dodge bearings. As you go up the scale below from 9 to 4 the inner and outer race thickness will usually increase along with the ball size, this will be to help. The previous designs of spherical roller bearings were already characterised by high performance. Peer bearing company offers a full line of mounted bearing units tailored specifically for the material handling industry. By continuing without changing your browser settings, we assume you give your consent to receive cookies. Sealed spherical roller bearings performance economical environmental protection advantages of the sealed series increased service life. Bearing nomenclature and numbering system korbel loziska.
Iso dimensional system and bearing numbers download kb iso dimensional system. Emerson front cover nomenclature pages for thomasnet upper and lower. Spherical roller bearings e1 higher costeffectiveness and. The applicable accuracy classes for each bearing type and the correspondence of these classes are shown in table 8. This second number relates the bearing series, which reflects the robustness of the bearing. This first number relates to the bearing type, as shown in the table below type 6 is a deep grooved roller bearing. But the bearing 6708 is of the thinwall type, whereas the 6408 type is massive and thickwalled. Kbc bearings full line catalog industrial bearings. The boundary dimensions of commonly used nsk bearings mostly conform to the organizational concept of iso, and the nsk bearing numbers of these standard bearings are specified by jis b 15 bearing numbers for rolling bearings. This part number can be divided into its components. Nsk full bearing reference nsk abbreviated part number recommended uk retail list price july 2014 02474r02420r 5 02474r02420r n 87. Nomenclature inch design number 2 digit roller, cage, cup or cone number additional features nonstandard radius extra markings x boundary dimensions adapted to international standards m. We offer premium cylindrical roller bearings under the ntn and bower brand names. Mediumduty vehicle clutch release bearings ams automotive offers the industrys most comprehensive lineup of mediumduty clutch release bearings, including comprehensive coverage on japanese applications.
In addition to assisting in bearing identification it helps to cross refer. Certain design considerations must be met in the device and bearing to address such factors as load, speed, temperature, environment, method. A bearing is essentially a part of a machine that bears friction. How to take your bearings in the markings on bearings, and not lose your mind. Ntnsnr sealed spherical roller bearings do not require maintenance under normal operating conditions. Frantz manufacturing conveyor bearing nomenclature. Bearing nomenclature skf is your source for a wide range of. Bearing nomenclature skf is your source for a wide range. An oil groove and holes are provided in the outer ring to supply lubricant and the bearing numbers are suffixed with e4. Therefore, when a european bearing producer makes a single row ball bearing, with 40 mm diameter of the inner circle, with 80 mm diameter of the outer circle and 18 mm of width, they will provide the bearing with the same identification marking as a producer from asia or south america that is with the code 6208. In cases of high speed and temperature relubrication may be necessary. Single and double lip radial shaft seals rated for pressures up to 90 psi. Most ntn and all bower cylindrical roller bearings feature casecarburized components. The product range includes nsk bearing units, bearing units, linear guides, hub units etc.
Ball bearings sph erical roller bearings t a p ered roller bearings t h r u s t bearings sp li t p illo w bloc k s s u p er p recision bearings rolling m ill bearings l inear m o t ion e ngineering sec t ion 7 introduction about nsk ball bearings radial ball bearings angular contact bearings double row bearings selfaligning ball bearings. Kbc bearings full line catalog industrial bearings ast. Nsk full bearing reference nsk abbreviated part number. Nsk linear guides reference guide for all interchangeable series courtesy of steven engineering, inc.
Most of the product offering have part numbers with listings shown throughout this catalog. Features of precision bearings p1029 metallurgical technology to extend bearing life p12 ceramic rolling elements p14 cages p16 product range p18 performance of each bearing type p2029 part 3. While numbers over 03 simply have a bore size which is 5 times that of the 3rd and 4th digit. Need an additional element to the bearing, visit the page seals, including oring seal or rotary shaft seal. Formed in 1988, ors is turkeys premier manufacturer of radial ball bearings metric. Peer insert bearings are offered with seals from moderate to extreme contamination applications. Metric iso radial cylindrical roller bearings nomenclature. 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. There are two main sections to the kbc catalog general kbc bearing topics and the dimensional product information. Nsk linear guides reference guide for all interchangeable.
Fourbolt fsnt housings for cylindrical bore bearings. 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. Skf is your source for a wide range of products covering various industries. Type code series bore suffix the type code indicates the type of bearing. Bearing designation systems 11 the basic designation consists of the code for the bearing series and the code for the bearing bore. Super precision bearings bearing sales corporation. The product range includes nsk bearing units, bearing units, linear guides, hub units etc covering many bearing types such as nsk deep groove bearings, tapered roller bearings, angular contact bearings, selfaligning bearings and many more. Nachi deepgroove ball bearings are available in a wide range of series defined by the jisiso standard dimension plan and are also made to meet specialized dimension and configuration requirements. Nomenclature guide to common bearing types for reference use only. The service life of a bearing can be examined from two perspectives. Popular mechanical seal mating rings come in ceramic white and sintered nickeliron gray. Nsk bearings nsk bearings is one of the leading manufacturers in the world of various types of bearings including rolling bearings, linear technology and automotive components. Regarding bearing accuracy classes, besides iso normal accuracy, as the accuracy improves there are class 6x for tapered roller bearings, class 6, class 5, class 4, and class 2, with class 2 being the highest in iso. Nema nomenclature p indicates plug or receptacle p is plug r is receptacle or socket 15 indicates the current rating and standard values are.
Iso dimensional system and bearing numbers a nsk e. It is also known that, when bearing temperature rises under high speed revolutions, the preload on ceramic balls is smaller than that on steel balls because the coefficient of linear expansion of the cer amic is smaller than that of bearing steel fig. Spherical roller bearings roller bearings products nsk. Nsk offer standard and customised parts across many industry sectors. However, you can change your browser cookie setting at any time. Tapered roller bearings production started under technical. Ritbearing is one of the primary importers of ors products in the u. Nsk and rhp bearings designation systems the objective of this publication is to introduce and explain the designation systems used to identify nsk and rhp bearings. How to order nomenclature bearing reference guide ultra kleen ez kleen extreme duty setscrew ball bearing grip tight dlok ball bearing setscrew ball bearings how to order there are two ways to specify dodge bearings. The most common bearing types and nomenclature of bearing parts are shown in fig. Bearing solutions for the material handling industry. Technical report basic knowledge services nsk global. Roller bearings i n t rod u c t ion ball bearings sph erical roller bearings t a p ered roller bearings t h r u s t bearings sp li t p illo w bloc k s s u p er p recision bearings rolling m ill bearings l inear m o t ion e ngineering s ec t ion 64 table of contents spherical roller bearings introduction about nsk spherical roller bearings.
Sealed spherical roller bearings welcome to ntn bearing. Action bearing nomenclature guide to common bearing types. Because of their versatility, singlerow, deep groove ball bearings are the most popular of all ball bearing types. We use cookies to ensure that we give you the best experience on our websites and web applications. Nsk super precision bearings p49 global network p4 research and development p6 quality control and manufacturing technology p8 part 2. Certain design considerations must be met in the device and bearing to address such factors as load, speed, temperature, environment, method of lubrication and fit.
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