Prefixes ecb air melt carburized steel, inner ring only bs2 double row spherical roller bearing with special dimensions for seals 2. The supplementary codes derive from prefixes and suffixes which indicate a bearings tolerances, internal clearances, and. Skf bearing designation nomenclature nodes bearing. Bearing designation systems 11 the basic designation consists of the code for the bearing series and the code for the bearing bore. Selfaligning units allow for easy installation and are supplied with grease fittings in order to facilitate quick and convenient relubrication. Spherical roller bearings industrial bearings, power. Splitblock housings provide proper support with precisionfit matched and serialized. Take a closer look at the different features of skf pillow block housings, and see how they can help you maximize bearing service life in your application. The ntn bearing unit is a combination of a radial ball bearing, seal, and a housing of highgrade cast iron or pressed steel, which comes in various shapes. Action bearing nomenclature guide to common bearing types. Bearing performance can be substantially improved by using ceramic balls instead of steel balls. If the bearing or application is not listed, contact your timken representative or visit to view the most recent application listings.
The nomenclature of ntn basic number indicates general information about a bearing, such as its fundamental type, boundary dimensions, series number, bore diameter code and contact angle. Facing increased competition and a changing landscape, snr focused its efforts on quality and, in 1990, became the first bearing manufacturer to obtain iso9001 certification. Specifications are subject to change without notice and without any obligation on the part of the manufacturer. Industry snr industry 7 applications the snr thermoplastic selfaligning bearing. Gerdau and skf in agreement to improve productivity at brazilian steel mills. By the mid1970s, snr employed more than 3,000 workers and production reached 200,000 bearings per day. These oldstyle 5000 type doublerows were available in the sb conrad and maximum capacity configurations. The company designs, makes and markets highperformance mechanical components. Koyo ball, needle and roller bearing nomenclature guide. The complete designation is always marked on the bearing package, whereas the marking on the bearing may be incomplete or deviate from. Ntn snr europe will provide you with a solution and personalised support for bearings, rollers, linear motion, cv joints, sensors, spare parts, maintenance products. If you are still unable to identify the correct bearing, then utilize the bearing specification guide. Single angular contact ball bearings on ntn bearing corp.
The top countries of suppliers are china, taiwan, china, and india, from which the percentage of snr bearing supply is 98%, 1%, and 1% respectively. Emerson front cover nomenclature pages for thomasnet upper and lower. Unfollow snr bearing to stop getting updates on your ebay feed. For over 100 years bardenfag has been a global leader in the development of precision bearing technology. Cad data of model numbers given in the catalog is available as an electronic catalog.
Brandsuffixes fag koyo nke nsk ntn skf snr twb in general 1 2 onetwo dustshields z 2z z zz z 2z z zz z zz z 2z z zz z zz 1 2 onetwo rubber seals rsr 2rsr. A wide variety of snr bearing options are available to you, there are 2,041 suppliers who sells snr bearing on, mainly located in asia. A bearing is essentially a part of a machine that bears friction. Skf mobile apps are available from both apple app store and. A world leader in precision bearing technology welcome to the world of barden precision bearings. Shaft unit number 1 nominal dimensions bolt bearing number dia.
Ultage spherical roller bearings type ea, type em ntn global. Set screws for bearing inserts bearing inserts snr ball bearing units snrindustry 20 metric inch set bearing insert max. Timken snt split plummer blocks seal options help keep interior contact surfaces debrisfree and properly lubricated with strong and effective seals. In addition to assisting in bearing identification it helps to cross refer nsk and rhp types. 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. The complete skf bearing nomenclature may consist of a basic designation with or without one or more supplementary designations. This publication is intended for use within the nskrhp organisation and can be used in conjunction with the publication, nsk and rhpprefixes and suffixes 1nrpse12. Skf split pillow block housings are modular systems, designed to maximize the performance of bearings mounted in them. Shown below is the interchange of pre1983 bearing numbers with the c and mtypes. The most important codes for metric bearing series are listed in table 1. 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 6 table of contents ball bearings introduction about nsk ball bearings.
The basic number indicates general information about a bearing, such as its fundamental type, boundary dimensions, series number, bore diameter code and contact angle. 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. In motion revolution part nomenclature midpoint bearing. Nomenclature guide to common bearing types for reference use only.
The outer surface of the bearing and the internal surface of the housing are spherical, so that the unit is selfaligning. Table 1 unmounted axial internal clearance of single row angular contact ball bearings of series 72b e, 73b e and 74b b when arranged in random pairs backtoback or facetoface table 1a unmounted preload of single row angular contact ball bearings of series 72b e, 73b e and 74 b. The solid grease lubricant in the ball bearing, solely developed by ntn, reduces leakage from the bearing, significantly reducing environmental pollution. Browse single angular contact ball bearings in the ntn bearing corp. This alphanumeric combination denotes the type, size and structure of the bearing. And with a virtually limitless variety of configurations of seals, shields, lubricants, internal clearances, and cage designs, theres no reason to go anywhere else for your ball bearing needs. Nomenclature ee extra light inch seriesminiature ball bearings bor e diame ter inches beari ng series 0. Snr spherical roller bearings were the first to benefit from the premier system. Mounting type ntn snr mrc ami browning peer pillow block sucp spbss mucp spss200 ssucp200 twobolt flange sucfl s2fss mucfl sf2ss200 ssucft200 fourbolt flange sucf s4fss mucf sf4ss200 ssucf200 tapped base sucpa stbss muctb stbss200 ssucpa takeup unit suct muct ssuct200 part nomenclature bearing insert housing suffix. Assembly of tapered hole roller bearings tapered hole spherical roller bearings use the measurement method as shown in fig. Bearings for universal pairing suffix cb are the standard skf bearings. Doublerow spherical roller bearings continued doublerow spherical roller bearings 340 spherical doublerowrollerswithtaperedbore series2k222k223k230k231k232k240k241k bore group2 groupn group3 group4 group5 diameter d mm min max min max min max min max min max 18 snr skf fafnir z zz fixed shields zzz fff zzz zzz zzz zzz z2z ddd. We can satisfy virtually any bearing need, enabling oem and mro users to fulfill all their machine tool requirements from a single source. Timken doublelip, labyrinth, vring and taconite seal options increase bearing life and improve uptime.
Additional information payment must be received within 3 working days of purchase, however if this is not possible, please let us know to discuss solutions. Bearings in this catalog are arranged by bearing type, with a size andor numerical listing. Internal design ca onepiece machined brass cage of the doublepronged type, retaining flanges on the inner ring and guide ring centred on the inner ring. Doublerow spherical roller bearings continued doublerow spherical roller bearings 340 spherical doublerowrollerswithtaperedbore series2k222k223k230k231k232k240k241k bore group2 groupn group3 group4 group5 diameter d mm min max min max min max min max min max 18 bearing nomenclature consist of basic numbers and supplementary symbols. Powerful computation resources to take the bearing stresses into account, optimum choice of materials, heat treatments and surface treatments to suit the application. Bearing designation systems 7 order codes for bearings are made up of a combination of letters and numbers. Snr ball bearing units with cast iron or pressed steel. 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. Skf bearingpart number system nomenclature a h r international. The selfaligning feature accommodates errors in housing assembly and misalignments between the inner and outer rings caused by bent shafts. Find the exact bearing you need using ntn bearing finder, our powerful online catalog platform. It should be noted that the appearance of a suffix in the alphabetical list, which follows. 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.
Our ball bearings are available to you offtheshelf, in sizes ranging from 10 mm to 320 mm outside diameters. A suitable tightening rate can be achieved by pushing the bearing toward the axial direction until it reaches the reduction rate of the radial internal clearance or pushing rate of. Bearing nomenclature and numbering system korbel loziska. International standardization of bearing numbers has been examined by iso but not adopted. Ntnsnr bearings shall not be held liable for any possible errors or omissions that may have been included in this catalogue despite the. The characteristics of snr hybrid bearings are given on page 22. Needle roller bearing with lubrication holes in outer ring. The inside construction of the ball bearing for the unit is. How to identify bearings by bearing number calculation.
The supplementary codes derive from prefixes and suffixes which indicate a bearings tolerances, internal clearances, and related specifications. To download a pdf document of this catalogue and for information. Snr ball bearing units with cast iron or pressed steel housings. Within each order code, a distinction is made between the basic designation and any suf. The center of the outer rings raceway aligns with the center of the bearing. Fag mrc nachi nsk ntn snr skf fafnir z zz fixed shields zzz fff zzz zzz zzz zzz z2z ddd. There is full interchangeability between snr elements. Using the timken bearing interchange the timken bearing interchange lists manufacturers part numbers, manufacturer name and.
The designations of most skf rolling bearings follow a bearing designation system. A new portable and easytouse induction heater from skf makes the hotmounting of bearings and similar parts, fast and safe. V version bearings the 719 and 70 series bearings are the best suited to high rotational speeds. You can also view our market and category specific catalogs below.
When exporting the products in this brochure, the laws of the exporting country must be observed. Low torque characteristics the standard solid grease type for these ball bearing units is spotpack which places the lubricant on the bearing cage. Contact ntn engineering for technical assistance if. Cylindrical 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 48 table of contents cylindrical roller bearings introduction about nsk cylindrical.
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