Y-bearings And Y-bearing Units
Y-bearings andY-bearing units
SKF is a registered trademark of the SKFGroup. SKF Group 2007The contents of this catalogue are the copyrightof the publisher and may not be reproduced(even extracts) unless permission is granted.Every care has been taken to ensure theaccuracy of the information contained in thiscatalogue but no liability can be accepted forany loss or damage whether direct, indirector consequential arising out of the use of theinformation contained herein.Catalogue 6001 EN · March 2007This catalogue supersedes catalogue 5001 E.Printed in Denmark on environmentally friendlypaper.
General .2Principles of selection and application . 11Y-bearings . 53Y-bearing plummer block units . 75Y-bearing flanged units . 109Y-bearing take-up units . 161Mounting instructions . 169Other related SKF products . 197Product index . 2111
ContentsForeword .5SKF – the knowledge engineering company .6Principles of selection and application .Designs .Bearing terminology .Matrices .Selection of Y-bearing unit type .Locating on the shaft.Loads .Seals .Permissible operating temperatures .Speeds .Application note .Selection of Y-bearing unit size .Load carrying ability and life .Selecting the bearing size using the life equations .Equivalent dynamic bearing load .Dynamic bearing loads .Requisite minimum load .Axial load carrying ability .Selecting the bearing size using the static load carrying capacity .Speeds .Design of Y-bearing arrangements .Axial displacement .Initial misalignment .Support surfaces .Shaft tolerances .Rubber seating rings .End covers .Lubrication and maintenance .Grease fills .Relubrication .Relubrication intervals .Storing Y-bearings and Y-bearing units .Designation systems 738404242434446472
1Product data . 51Y-bearings . 53Y-bearing plummer block units . 75Y-bearing flanged units . 109Y-bearing take-up units. 161Mounting instructions . 169Other related SKF products . 197Product index. 2113
The SKF brand now stands for more than everbefore, and means more to you as a valuedcustomer.While SKF maintains its leadership as the hallmark of quality bearings throughout the world,new dimensions in technical advances, productsupport and services have evolved SKF intoa truly solutions-oriented supplier, creatinggreater value for customers.These solutions encompass ways to bringgreater productivity to customers, not only withbreakthrough application-specific products, butalso through leading-edge design simulationtools and consultancy services, plant assetefficiency maintenance programmes, and theindustry’s most advanced supply managementtechniques.The SKF brand still stands for the very best inrolling bearings, but it now stands for muchmore.SKF – the knowledge engineering company4
Foreword1This catalogue gives a representative overviewof the range of Y-bearings and Y-bearing unitsavailable from SKF. The data in this catalogueis based on the latest standards and productupgrades. However, SKF reserves the right tomake any changes necessary as a result of continuous improvement with respect to materials,design and manufacture.The units used in this catalogue are inaccordance with ISO (International Organizationfor Standardization) standard 1000:1992, andSI (Système International d’Unités).This catalogue contains all the data relevantto Y-bearings and Y-bearing units. All the datarequired to select a Y-bearing or Y-bearing unitrespectively are listed in the product tables.Descriptions of the Y-bearing and Y-bearingunit types including design features and otherinformation precede each product section.General data regarding selecting a Y-bearing orY-bearing unit type and size, speeds, bearingarrangement design, lubrication, mounting anddesignations are included in the catalogue too.The catalogue is designed so that productinformation is easy to find and use. Each of the9 chapters listed in the table of contents isclearly identified by a number and colour.5
SKF – the knowledgeengineering companyFrom the company that invented the self-aligning ball bearing 100 years ago, SKF has evolvedinto a knowledge engineering company that isable to draw on five technology platforms tocreate unique solutions for its customers. Theseplatforms include bearings, bearing units andseals, of course, but extend to other areas including: lubricants and lubrication systems, criticalfor long bearing life in many applications; mechatronics that combine mechanical and electronicsknowledge into systems for more effective linearmotion and sensorized solutions; and a full rangeof services, from design and logistics support toconditioning monitoring and reliability systems.Though the scope has broadened, SKF continues to maintain the world’s leadership in thedesign, manufacture and marketing of rollingbearings, as well as complementary productssuch as radial seals. SKF also holds an increasingly important position in the market for linearmotion products, high-precision aerospacebearings, machine tool spindles and plant maintenance services.SealsBearingsand unitsMechatronics6The SKF Group is globally certified toISO 14001, the international standard for environmental management, as well as OHSAS18001, the health and safety managementstandard. Individual divisions have been approved for quality certification in accordance witheither ISO 9000 or QS 9000.With some 100 manufacturing sites worldwide and sales companies in 70 countries, SKFis a truly international corporation. In addition,our distributors and dealers in some 15 000locations around the world, an e-businessmarketplace and a global distribution systemput SKF close to customers for the supply ofboth products and services. In essence, SKFsolutions are available wherever and whenevercustomers need them. Overall, the SKF brandand the corporation are stronger than ever. Asthe knowledge engineering company, we standready to serve you with world-class productcompetencies, intellectual resources, and thevision to help you succeed.LubricationsystemsServices
Airbus – photo: exm company, H. GousséEvolving by-wire technologySKF has a unique expertise in fast-growing by-wire technology, from fly-by-wire,to drive-by-wire, to work-by-wire. SKF pioneered practical fly-by-wire technology andis a close working partner with all aerospace industry leaders. As an example, virtuallyall aircraft of the Airbus design use SKF by-wire systems for cockpit flight control.SKF is also a leader in automotive by-wiretechnology, and has partnered with automotiveengineers to develop two concept cars, whichemploy SKF mechatronics for steering and braking. Further by-wire development has led SKFto produce an all-electric forklift truck, whichuses mechatronics rather than hydraulics forall controls.7
Harnessing wind powerThe growing industry of wind-generated electricpower provides a source of clean, green electricity. SKF is working closely with global industryleaders to develop efficient and trouble-freeturbines, providing a wide range of large, highlyspecialized bearings and condition monitoringsystems to extend equipment life of wind farmslocated in even the most remote and inhospitableenvironments.Working in extreme environmentsIn frigid winters, especially in northern countries,extreme sub-zero temperatures can cause bearings in railway axleboxes to seize due to lubrication starvation. SKF created a new family ofsynthetic lubricants formulated to retain theirlubrication viscosity even at these extreme temperatures. SKF knowledge enables manufacturers and end user customers to overcome theperformance issues resulting from extreme temperatures, whether hot or cold. For example, SKFproducts are at work in diverse environmentssuch as baking ovens and instant freezing in foodprocessing plantsDeveloping a cleaner cleanerThe electric motor and its bearings are the heartof many household appliances. SKF works closelywith appliance manufacturers to improve theirproducts’ performance, cut costs, reduce weight,and reduce energy consumption. A recent example of this cooperation is a new generation ofvacuum cleaners with substantially more suction.SKF knowledge in the area of small bearing technology is also applied to manufacturers of powertools and office equipment.8
Maintaining a 350 km/h R&D labIn addition to SKF’s renowned research anddevelopment facilities in Europe and the UnitedStates, Formula One car racing provides a uniqueenvironment for SKF to push the limits of bearingtechnology. For over 50 years, SKF products,engineering and knowledge have helped makeScuderia Ferrari a formidable force in F1 racing.(The average racing Ferrari utilizes more than150 SKF components.) Lessons learned here areapplied to the products we provide to automakersand the aftermarket worldwide.Delivering Asset Efficiency OptimizationThrough SKF Reliability Systems, SKF providesa comprehensive range of asset efficiency products and services, from condition monitoring hardware and software to maintenance strategies,engineering assistance and machine reliabilityprogrammes. To optimize efficiency and boostproductivity, some industrial facilities opt foran Integrated Maintenance Solution, in whichSKF delivers all services under one fixed-fee,performance-based contract.Planning for sustainable growthBy their very nature, bearings make a positivecontribution to the natural environment, enabling machinery to operate more efficiently, consume less power, and require less lubrication.By raising the performance bar for our own products, SKF is enabling a new generation of highefficiency products and equipment. With an eyeto the future and the world we will leave to ourchildren, the SKF Group policy on environment,health and safety, as well as the manufacturingtechniques, are planned and implemented to helpprotect and preserve the earth’s limited naturalresources. We remain committed to sustainable,environmentally responsible growth.9
Principles of selectionand application2Designs .12Selection of Y-bearing unit type .18Selection of Y-bearing unit size .24Speeds .32Design of Y-bearing arrangements .34Lubrication and maintenance .42Storing Y-bearings and Y-bearing units .46Designation systems .4711
DesignsConventional SKF ball bearing units are referredto as Y-bearing units. These units consist ofFig.1 an insert bearing (a single row deep grooveball bearing) with a convex sphered outsidediameter a housing, which has a correspondinglysphered but concave bore.Y-bearing units can accommodate moderateinitial misalignment, but normally do not permitaxial displacement. They are ready-to-mount,ready-to-use units († fig. 1) and available as Y-bearing plummer block units Y-bearing flanged units Y-bearing take-up units.The housings are available inFig. 2 composite material referred to as Y-TECH(† fig. 2) grey cast iron († fig. 3) sheet steel († fig. 4).SKF Y-bearing units provide designers with considerable freedom of choice so that compromises can be avoided. Some 40 standard seriesY-bearing units are available († matrices onpages 16 and 17).Because of their versatility and cost effectiveness, Y-bearing units are typically found in thefollowing applications: agricultural machinery,construction equipment, conveyor systems,textile machines and fans as well as in machinesfor food and beverage processing and packaging.12
Bearing terminologyFig. 3To better understand frequently used bearingspecific terms for Y-bearingsY-bearing plummer block unitsY-bearing flanged unitsY-bearing take-up units2the terms and their definitions are providedon pages 14 and 15. Essentially, these termsconform to those found in the following ISOstandards: ISO 3228:1993 “Rolling bearings – Cast andpressed housings for insert bearings”. ISO 9628:1992 “Rolling bearings – Insertbearings and eccentric locking collars”.Fig. 4A detailed collection of bearing specific termsand definitions can be found in ISO 5593:1997“Rolling bearings – Vocabulary”.13
DesignsFig. 53214511610789Y-bearing († fig. 5)1234567891011Outer ringSphered outer surfaceLubrication holeInner ringBoreCageBallSuperagrisealFlingerEccentric locking collarGrub screwY-bearing plummer block unit († fig. 6)1Inner ring with an eccentric locking collar23456789Y-bearing plummer (pillow) block housingof grey cast ironHousing baseHousing support faceCast dimple for dowel pinAttachment bolt holeY-bearing († fig. 5)Grease nippleRecess for end coverFilling slot for Y-bearingInner ring with two grub screwsFig. 676Inner ring with a tapered bore(on an adapter sleeve)89453Inner ring of a standard deepgroove ball bearing1421
Y-bearing flanged unit († fig. 7)12345678Fig. 7Square flanged housing of grey cast ironAttachment bolt holeBack of flanged housing with or withoutcentring recessCast dimple for dowel pinY-bearing († fig. 5)Grease nippleFilling slot for Y-bearingRecess for end cover 2 Y-bearing take-up unit († fig. 8)12345678Fig. 8Take-up housing of grey cast ironGrease nippleY-bearing († fig. 5)Piloting grooveRecess for end coverReceiving opening for adjustment screwlocationCentre bore for adjustment screwFilling slot for Y-bearing 15
DesignsY-bearing unitY-bearingsYAR 2-2FYAR 2-2RFYAR 2-2RF/HVY-bearing housingsFYK 5(00)FYKC 5(00) NFYTBK 5(00)FYTBKC 5(00) NFYK . TFFYTBK . TF20–40 mm3/4–1 1/2 in20–35 mm3/4–1 1/4 inFYK . TRFYTBK . TR20–40 mm3/4–1 1/2 in20–35 mm3/4–1 1/4 inFYKC . NTHFYTBKC . NTH20–40 mm3/4–1 1/2 in20–35 mm3/4–1 1/4 in20–40 mmPartsmust beorderedseparately20–40 mm20–40 mm20–40 mm20–35 mm17–50 mmPartsmust beorderedseparately20–50 mm17–45 mm20–40 mm20–35 mm20–60 mmPartsmust beorderedseparately20–50 mmPartsmust beorderedseparately20–45 mmPartsmust beorderedseparately20–40 mmPartsmust beorderedseparately20–35 mm20–40 mmPartsmust beorderedseparately20–40 mm20–40 mm20–40 mm20–35 mmPartsmust beorderedseparately15–45 mm3/4–1 1/2 inPartsmust beorderedseparately20–40 mm3/4–1 1/2 inPartsmust beorderedseparately20–40 mm3/4–1 1/2 inPartsmust beorderedseparately20–35 mm3/4–1 1/4 inPartsmust beorderedseparately20–35 mm3/4–1 inPartsmust beorderedseparately20–30 mm3/4–1 3/8 in20–40 mm20–35 mmSYK 5(00)SYKC 5(00) NSY 5(00) MSYJ 5(00)SYF 5(00) MSYFJ 5(00)SY . TFSY . TFSYJ . TFSYF . TFSYFJ . TF20–40 mm3/4–1 1/2 in12–100 mm3/4–2 1/2 inSYK . TRSY . TR20–40 mm3/4–1 1/2 in20–60 mm3/4–2 1/2 inPartsmust beorderedseparately20–40 mm3/4–1 1/2 in20–50 mm3/4–1 3/4 inPartsmust beorderedseparately20–50 mm3/4–1 3/4 inPartsmust beorderedseparately20–40 mm3/4–1 1/2 inSYKC . NTH20–40 mm3/4–1 1/2 inYAR 2-2RF/VE49520–40 mmYAT 220–40 mmYEL 2-2FPartsmust beorderedseparately20–40 mmSY . WFYEL 2-2RF/VL06520–40 mmYET 2YSA 2-2FK onadapter sleevePartsmust beorderedseparately20–40 mm3/4–1 1/2 inPartsmust beorderedseparately20–35 mm3/4–1 1/4 in16Partsmust beorderedseparately12–45 mm3/4–1 3/4 inPartsmust beorderedseparately20–45 mm3/4–1 3/4 inPartsmust beorderedseparately20–40 mm3/4–1 1/2 inSY . FMSYF . FM15–60 mm3/4–1 1/2 in20–60 mm3/4–2 3/8 in20–50 mm3/4–1 1/2 inPartsmust beorderedseparately20–45 mm3/4–1 3/4 in17–60 mmPartsmust beorderedseparately20–50 mm17–45 mmSYJ . KF17262(00)20–40 mmP 40–85
FY 5(00) MFYJ 5(00)FYTB 5(00) MFYTJ 5(00)FYC 5(00)FY . TFFYJ . TFFYTB . TFFYTJ . TFFYC . TF12–100 mm3/4–2 1/2 in12–50 mm3/4–1 3/4 inFY . TRFYTB . TR20–60 mm3/4–2 1/2 in20–50 mm3/4–1 3/4 in20–65 mm3/4–2 1/2 inPartsmust beorderedseparately20–65 mm3/4–2 1/2 in20–40 mm3/4–1 1/2 in20–40 mm3/4–1 1/2 in20–40 mm3/4–1 1/2 in20–40 mm20–40 mm17–50 mm17–50 mmFY . WFFYTB . WF20–60 mm20–50 mmTU 5(00) MTUJ 5(00)PF 40 – 90PFD 40 – 80PFT 40– 80Partsmust beorderedseparately12–40 mm3/4–1 1/2 inPartsmust beorderedseparately20–40 mm3/4–1 1/2 inPartsmust beorderedseparately12–40 mm3/4–1 1/2 inPartsmust beorderedseparately20–40 mm3/4–1 1/2 in20–60 mm1–2 inPartsmust beorderedseparately20– 60 mm3/4–2 in20–40 mm3/4–1 1/2 in20–40 mm3/4–1 1/2 in20–40 mm3/4–1 1/2 in20–40 mmPartsmust beorderedseparately12–50 mm3/4–1 3/4 inPartsmust beorderedseparately20–50 mm3/4–1 3/4 inPartsmust beorderedseparately20–40 mm3/4–1 1/2 inPartsmust beorderedseparately20–40 mm20–40 mm20–40 mm20–40 mm20–50 mmPartsmust beorderedseparately17–50 mm17–40 mm17–40 mm20–50 mmPartsmust beorderedseparately20–60 mmPartsmust beorderedseparately20–50 mmPartsmust beorderedseparately20–40 mmPartsmust beorderedseparately20–40 mmPartsmust beorderedseparately20–60 mm20–40 mmPartsmust beorderedseparately20–40 mm20–40 mm20–40 mm20–40 mmPartsmust beorderedseparately15–40 mm3/4–1 1/2 inPartsmust beorderedseparately20–35 mm3/4–1 3/16 inPartsmust beorderedseparately15–40 mm3/4–1 1/2 inPartsmust beorderedseparately20–35 mm3/4–1 3/16 in17–40 mm17–40 mm20–40 mm20–40 mmFY . FMFYTB . FM15–60 mm3/4–1 1/2 in15–50 mm3/4–1 1/2 inFYJ . KFFYTJ . KF20–60 mm3/4–2 3/8 in20–45 mm3/4–1 3/4 inPartsmust beorderedseparately20–60 mm3/4–1 1/2 inPartsmust beorderedseparately20–60 mm3/4–2 3/8 in17–60 mm17–50 mm20–60 mmPartsmust beorderedseparately15–50 mm3/4–1 1/2 inPartsmust beorderedseparately20–45 mm3/4–1 3/4 inPartsmust beorderedseparately17–50 mmTU . TFTUJ . TF2TU . FM20–55 mmPartsmust beorderedseparately20–55 mm3/4–2 1/8 in20–60 mm17
Selection of Y-bearing unittypeThe SKF Y-bearing unit product range is extensive. It includes three designs with a choice ofthree different materials for the housing anda variety of Y-bearings that can be locked ontothe shaft in very different ways. Because of theirdesign, each Y-bearing unit exhibits characteristic features that make it more or less suitable fora specific application.For example, Y-bearing units with a pressedsteel housing are not capable of supportingheavy loads, can only run at moderate speedsand can not be relubricated. However, they areeconomical and easy to mount. On the otherhand, housings made of cast iron can withstandsignificantly heavier radial, axial and shock loads.In addition, cast iron housings have a greasenipple for relubrication, making them a goodchoice for applications with somewhat higherspeed.Since in many cases the selection of a suitable Y-bearing unit must take many factors intoconsideration, there is no way to provide a list ofgeneral rules. The following notes should show,however, what factors are the most importantones to consider first locating on the shaftloadssealspermissible operating temperaturesspeeds.18Keep in mind that the total cost of a bearingarrangement and inventory considerations couldalso influence the final choice.Other important criteria for designing a bearing arrangement, such as load carrying capacityand rating life, lubrication, etc., will be dealt within detail in the corresponding chapters.
Fig. 1Locating on the shaftThere is a choice of four different methods(† fig. 1) by which an SKF Y-bearing unit canbe located onto the shaft:a Grub (set) screws (a). This method enablesvery easy mounting and dismounting, evenif space is limited. This locking method istypically used in applications where the shaftalternates direction of rotation. Eccentric locking collar (b). This locking methodshould be chosen only for those applicationswhere the shaft rotates in one direction only. Adapter sleeve locking (c). This method enables a concentric locking of the Y-bearing uniton the shaft and is appropriate for alternatingas well as constant directions of rotation. Interference fit (d). The use of an interference fit is only available for Y-bearings in the17262(00)-2RS1 and 17263(00)-2RS1 series.These bearings and the required housingshave to be ordered separately.bcd192
Selection of Y-bearing unit typeLoadsFig. 2The magnitude of the load is the factor thatusually determines the size of the Y-bearingunit to be used. Generally, units with housingsmade from cast iron or composite material canwithstand heavier loads than units with pressedsheet steel housings. Magnitude of load isdefined as P 0,02 C – very light load0,02 C P 0,035 C – light load0,035 C P 0,05 C – moderate load0,05 C P 0,1 C – normal loadP 0,1 C – heavy load.Radial loadsIn applications where normal to heavy loadsoccur, only Y-bearing units with housings madefrom cast iron or composite material shouldbe used. These units are able to withstand thesame dynamic and static loads as their insertbearings and are less sensitive to shock loads(† fig. 2a).Y-bearing units with a pressed steel housingare designed to withstand light to moderate loadsand are not able to accommodate shock loads(† fig. 2b).abcdAxial loadsThe axial load carrying capacity of a Y-bearingdepends not as much on its internal design ason the way it is locked onto the shaft († fig. 2c)as described in chapter “Axial load carrying ability”, page 28. In general, Y-bearing units withhousings made from cast iron or compositematerial are more suitable for heavier or alternating axial loads.Y-bearing units with a pressed sheet steelhousing are only intended for light axial loads, inparticular the plummer block units incorporating a rubber seating ring († fig. 2d).20
Fig. 3SealsThe factors that influence the choice of the mostappropriate seal include: The peripheral speed at the sealing counterface. The friction in the seal and the resulting temperature increase. The operating environment, e.g. moisture,dust or coarse contaminants. The requirements regarding efficiency.abThe standard “Superagriseal” used in SKFY-bearing units provides good protection againstmoisture and contaminants and also providesreliable retention of the lubricant († fig. 3a).The same applies to RS1 contact seals that arebuilt into the Y-bearings with normal inner ringin the 17262(00)-2RS1 and 17263(00)-2RS1series († fig. 3b).For more contaminated conditions Y-bearing units fitted with plain steel flingers outsidethe integral “Superagriseal” should be used(† fig. 3c). The flingers have an interference fiton the inner ring and considerably enhance thesealing effect without increasing friction.Where operating conditions are extremelycontaminated and long service life is required,Y-bearing units with the highly efficient multipleseal are recommended. Here, the sealing efficiency of the standard “Superagriseal” is reinforced with a steel flinger having a vulcanizedsealing lip († fig. 3d).cd212
Selection of Y-bearing unit typePermissible operatingtemperaturesThe permissible operating temperatures for aY-bearing unit are determined primarily by thebearing, the cage material, the seal material(s)and the grease with which it is lubricated.The temperature ranges for the greases are: –20 to 120 C for all standard Y-bearingsand Y-bearing units that are filled with agrease with a lithium-calcium thickener 1). –45 to 120 C for HV and VE495 Y-bearingvariants and for NTH unit variants that arefilled with a food-grade grease 1). 40 to 55 C for maintenance-free operation at moderate loads (P 0,05 C) andspeeds.If Y-bearing units are required to operateabove the reference temperature of the grease(† table 1, page 43), SKF recommendsusing Y-bearing units that can be relubricated.Relubrication should be frequent († section“Relubrication intervals”, pages 44 and 45).For operating temperatures exceeding thelimits listed above, Y-bearing units for hightemperatures are available from SKF. Detailedinformation on these units can be found in theSKF General Catalogue or in the “SKF InteractiveEngineering Catalogue” online at www.skf.com.1)The safe operating temperature range according to the ”SKFtraffic light concept” where the grease will function properlylies within limits 40 and 120 C.22
SpeedsThe speed at which a Y-bearing or a Y-bearing unitcan operate depends mainly on the means by which it is attached to the shaftand the sealing arrangement.2For Y-bearings that are locked onto a shaft withgrub screws or an eccentric locking collar, thepermissible speed of the bearing is determinedby its fit on the shaft. The looser the fit, thelower the speed.If a Y-bearing is mounted on an adaptersleeve or mounted with an interference fit,e.g. bearings in the 17262(00)-2RS1 and17263(00)-2RS1 series, the permissible speedis much higher than i
This catalogue gives a representative overview of the range of Y-bearings and Y-bearing units available from SKF. The data in this catalogue is based on the latest standards and product upgrades. However, SKF reserves the right to make any changes necessary as a result of con - tinuous impro
(RCT bearings), ball screw support bearings, turntable bearings, as well as rectilinear motion bearings (linear ball bearings, linear roller bearings and linear flat roller bearings). A-5 Outerring Inner ring Cage Ball Deep groove ball bearing Fig 1.1 Ball Cage Outer ring Inner ring Angular contact ball bearing Fig. 1.2 Inner ring Outer ring .
5 - BEARINGS Ball Bearings, Plain pgs. 5-8 & 5-10 Precision Ball Bearings, Plain pg. 5-6 Precision Ball Bearings, Flanged pg. 5-7 Ball Bearings, Flanged pg. 5-9 Nonmetallic Ball Bearings pg. 5-11 Hydro-Dynamic Pressure Bearings 5-13 Linear Ball Bearings, Closed Type pgs. 5-14 & 5-15 Frelon Lined Linear Bearings, Self-Lubricating pg. 5-22
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4 TIMKEN METRIC TAPERED ROLLER BEARINGS BEARING DATA TIMKEN METRIC TAPERED ROLLER BEARINGS Bore Part Number Dimension Series (ISO 355) Bearing Dimensions Bore d O.D. D Width T B Width C mm mm mm mm mm mm 15 30302 2FB 15.000 42.000 14.250 13.000 11.000 17 30203 2DB 17.000 40.000 13.250 12.000 11.000 30303 2FB 17.000 47.000 15.250 14.000 12.000 20 File Size: 279KBPage Count: 20Explore furtherTapered Roller Bearing Catalog Timkenwww.timken.comTimken Tapered Roller Bearing Catalog - TIMKEN - PDF .pdf.directindustry.comTimken Metric Tapered Roller Bearing Catalogwww.timken.comTIMKEN METRIC TAPERED ROLLER BEARINGSwww.timken.comTimken-Tapered Roller Bearing Catalogue - THE TIMKEN .pdf.aeroexpo.onlineRecommended to you b
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the bearing. Active Magnetic bearing is a contactless bearing technology that aims to eliminate the drawbacks of roller bearings as well as journal bearings. Active Magnetic bearing is based on fundamentals of electromagnetic levitation through attractive forces. The load bearing rotor is suspended at the center of the stator.
