SKF Linear Ball Bearings - Irbis.ua
Linear MotionОфициальный дистрибьютор SKF в Украине компания ООО "ТД ИРБИС"Сайт: https://www.irbis.ua/Тел.: (057)714-09-09, (044)299-58-19, (056) 787-26-00,(048) 740-93-60, (061) 280-49-45, (0542) 77-41-30,(05366) 6-80-38, (095) 640-00-53SKF Linear ball bearings
The SKF GroupSKF Linear MotionCD-ROM “Designer”The SKF Group is an internationalindustrial corporation of AB SKFSweden, founded in 1907. Today,the company has some 45 000employees, runs more than 80manufacturing facilities and is operating in 130 countries.A considerable share of these precision products is manufacturedand sold by the SKF Linear Motiondivision. With some 700 employees, the unit manufactures 3 product lines at 6 manufacturing facilities. One of the division’s strengthsis its distinct market orientation thatis ensured by its 11 specialisedsales companies in Europe andNorth America. In addition, theinternational SKF network guarantees the worldwide availability oflinear motion products and application engineering support.All Linear Motion products areavailable on this CD, as DWG andDXF files. Thanks to “Designer”,you can easily copy the requiredproduct drawing into your owndesign drawing. If you are interested in obtaining a free copy of thisCD-ROM, please do not hesitate tocontact your local SKF salesorganisation.Its international network is supported by nearly 20 000 distributorsand retailers. SKF is the worldleader in the rolling bearing business, with bearings, seals and special steels as its main productareas. In addition, SKF manufactures and sells a wide range ofother industrial precision components and products.The Linear Motion product rangecovers: High-performance ball and rollerscrews Linear guidance systems Electromechanical actuatorsLinear Motionspecialised companiesSKF bearing companieswith Linear Motionspecialised sales forceLinear Motion manufacturingfacilitiesCatalogue n 4182 E / XIV47173 · 1500 · 2003-08Printed in Germanyby Weppert GmbH & Co. KG Copyright SKF 1992The contents of this catalogue arethe copyright of the publishers andmay not be reproduced (evenextracts) unless permission isgranted. Every care has beentaken to ensure the accuracy ofthe information contained in thiscatalogue but no liability can beaccepted for any errors or omissions.Earlier catalogues, the data inwhich deviate from those givenhere, are rendered invalid. The rightis reserved to make changesnecessitated by technologicaldevelopments.
IntroductionProduct Overview2Contents3LBBR linear ball bearingsLPB linear plain bearings4LBBR linear bearing units8LBC . A linear ball bearingsLPA linear plain bearings14LBC linear bearing units23Shaft carriers38Non-driven quadro linear tables43Precision shafts461
IntroductionThis catalogue covers SKF linear ballbearings, linear plain bearings andaccessories, with which it is possible toconstruct economic linear guides ofparticularly simple design for a widevariety of applications. In cases where, forexample, load conditions are such thatthese bearings and units cannot be used,other SKF linear guidance systems areavailable. Should information regardingthese other systems be required, pleasecontact SKF. The necessary informationwill be sent free of charge and withoutobligation, and a technical proposal willalso be prepared if required. This new"Linear Bearings" catalogue includeslinear ball bearings of Series 1 and 3 toISO 10285, also linear plain bearings ofthe same dimensions. Series 1 comprisesthe compact linear ball bearings LBBR aswell as linear plain bearings LPBR. Thelinear ball bearings LBBR are, in additionto the standard version, also available in acorrosion resistant version. Series 1 iscomplemented by a comprehensiverange of linear bearing units. In addition tothe single bearing units, with special shaftseals, tandem, duo and quadro units arenow included in the range. Series 3comprises the advanced cylindricaldesign LBCR . A and LBCT . A linear ballbearings as well as the self-aligning LBCD. A and LBCF . A varieties. The range iscomplemented by the LBHT . A range oflinear ball bearings with extra high loadcarrying capacity.In order to keep abreast of ever increasinguser demands, SKF has fundamentallyrevised its linear ball bearings of seriesLBC (ISO series 3). The resultant newlinear ball bearings offer distinct advantages over the former LBC series and thelinear ball bearings currently available inthe market. A particularly important fact isthat the new ISO series 3 bearings cannow also be supplied in a corrosionresistant standard version. Moreover, theirintegral double-lip seal permits ‘for-life’lubrication under standardoperatingconditions.As a matter of course, the new linearball bearings are interchangeable with theformer LBC series and all linear ballbearings currently available.Also forming part of this size range arethe LPAR and LPAT linear plain bearingswhich appear for the first time in thiscatalogue. All linear bearing units arefitted as standard with self aligning linearball bearings to accommodate misalignment. Other designs can be found in theappropriate tables. The range of shaftcarriers has been extended to include ashaft block conforming to the ISOstandard. Shafts, which constitute theraceway of linear ball bearings and linearplain bearings are naturally included in theSKF range of shaft guides.This catalogue is based on currentproduction. The right is reserved to makechanges necessitated by technicaldevelopments of the products so that thebenefits can be passed on to the userwithout delay. Information from previouscatalogs is superseded by the informationcontained in this edition. In this cataloguethe units used are in accordance with theinternational Sl system.Conditions of delivery and paymentare generally based on those ruling at thetime of delivery.Important notice SKF linear ballbearings are coated with a corrosioninhibiting preservative. Before mounting the bearings, they should besuitably lubricated. See also Publication No. 4185E, SKF Linear guidehandbook.Product OverviewStandardavailable from stock (changes reserved)Non-standardPrice and delivery time on requestLinear ball bearing / Linear bearing unitsDesignationISO Serie ICompactISO Serie IIIStandardTypeLBBRLPBRLinear bearing1)unitLUHRLUJRLUHR PBLBCD . A LBCF . A LBHT . ALUCDLUCELUCFLUNFLUCT BHLBCR . A LBCT . A LPARLUCRLUCSLUCTLUCR PALPATLUCT PAFlanged unit1)Tandem unit1)Duo unitQuadro unit1)Shaft blocksTandemshaft blockShaft �LUBR BLRCCLRCBLRCC––LRCBLRCC––LRCBLRCCLinear bearing units without seals are available on request only.LQCR––LRABLRAC
ContentsLBBR Linear bearings ISO Dimension Series 1LBP Linear plain bearing ISO-Dimension Series 1LBBR linear ball bearings .LPBR linear plain bearing .46LBBR Linear bearing units ISO Dimension Series 1General .LUHR/LUJR single linear bearing units with closed housing .LTBR Tandem linear bearing units with closed housing .LTDR Duo linear bearing units with closed housing .LQBR Quadro linear bearing units with closed housing .810111213LBC . A Linear bearings ISO Dimension Series 3LPA Linear plain bearing ISO-Dimension Series 3General .LBCR . A linear ball bearings, closed design non self-aligning .LBCD . A linear ball bearings, closed design self-aligning .LBCT . A, LBHT . A linear ball bearings, open design non self-aligning .LBCF . A linear ball bearings, open design self-aligning .LPAR, LPAT linear plain bearings, closed and open design .141819202122LBC Linear bearing units ISO Dimension Series 3General .LUCR/LUCD Linear bearing units with closed housing .LUCS/LUCE Linear bearing units with slotted housing .LUCT/LUCF Linear bearing units with open housing .LUCT.BH Linear bearing units with open housingand increased load carrying capacity .LUND Linear bearing units with closed housing .LUNE Linear bearing units with slotted housing .LUNF Linear bearing units with .LVCR/LVCD Flanged linear bearing units .LTCD Tandem linear bearing units with closed housing .LTCF Tandem linear bearing units with open housing .LQCR/LQCD Quadro linear bearing units with closed housing .LQCF Quadro linear bearing units with open housing.23262728293031323334353637Shaft carriersGeneral .LSCS Shaft blocks .LSNS/LSHS Shaft blocks .LEAS/LEBS Tandem shaft blocks .LRCB/LRCC Shaft supports .3839404142Non-driven quadro linear tablesGeneral .LZBU Quadro linear tables with closed housing .LZAU Quadro linear tables with open housing .434444Precision shaftsGeneral .LJM/LJT Precision shafts .46503
LBBR linear ball bearings/LPB linear plain bearingsLBBR linear ball bearingsThe recently developed compactLBBR linear ball bearing is of apatented design. The bearing comprises a plastic cage carrying hardened steel raceway segments andguiding the ball sets. The bearingconforms to dimension series 1 ofISO 10285. The LBBR racewaysegments have been designed tomaximise the length of the loadcarrying zone. A high load bearingcapacity is therefore possible with aresulting long service life. The designof the plastic cage is entirely newand has been optimised. The keyfeature is that all the balls in thebearing run on the same pitch circlediameter which allows ball recirculation to take place smoothly with noresulting cage loads. Ball diametercan be maximised with this design ofcage with implications not only forload capacity and life but also onrunning quality.The seal design on this newbearing type has also been improved.The sealed variant is fitted withintegral double lip seals. These sealshave an inner lip that prevents escapeof lubricant from within the bearingand an external lip to wipe the shaftsurface as the bearing moves. Theunsealed bearing is fitted with noncontacting shields that protect againstmajor contamination from the bearing.The linear ball bearings LBBR, neednot be secured axially in the housingprovided the housing bore is correct.StainlessThe application of linear bearings hasbeen extended by this new type withthe introduction of a corrosionresistant variant Raceway segmentsand balls can be specified in highalloy stainless steel by adding thesuffix HV6 to the designation, e.g.LBBR 16-2LS/HV6. In combinationwith our stainless steel shafts, thelinear ball bearing LBBR thus offersthe possibility of realising a designcompletely of stainless steel.Abmessungen Anzahl TrareihenCCFw Dmm12162025304050LBBR linear ball 09001 1202 0003 2505 3006 800
LBBR linear ball bearingswith raceway platesFw 3-50 mmLinear ball bearing LBBRwith double lip )agzahlen0000000DC05106207801 3702 6504 4006 300No.of ballrowsBasic load 6957109301 1602 1203 1505 5006 950stat.C0—0,0150,0220,0260,0550,0840,160,22LBBS 12LBBS 16LBBS 20LBBS 25LBBS 30LBBS 40LBBS 50Linear ball bearingsstandard with 2 doubledesignlip sealsstainless steelstandarddesignwith 2 doublelip sealsLBBR 3LBBR 4LBBR 5LBBR 6ALBBR 8LBBR 10LBBR 12LBBR 14LBBR 16LBBR 20LBBR 25LBBR 30LBBR 40LBBR 50LBBR 3/HV6LBBR 4/HV6LBBR 5/HV6LBBR 6A/HV6LBBR 8/HV6LBBR 10/HV6LBBR 12/HV6LBBR 14/HV6LBBR 16/HV6LBBR 20/HV6LBBR 25/HV6LBBR 30/HV6LBBR 40/HV6LBBR 50/HV6LBBR 3-2LS/HV6LBBR 4-2LS/HV6LBBR 5-2LS/HV6LBBR 6A-2LS/HV6LBBR 8-2LS/HV6LBBR 10-2LS/HV6LBBR 12-2LS/HV6LBBR 14-2LS/HV6LBBR 16-2LS/HV6LBBR 20-2LS/HV6LBBR 25-2LS/HV6LBBR 30-2LS/HV6LBBR 40-2LS/HV6LBBR 50-2LS/HV6kg44601292703554155105306308001 5602 7004 5006 ,0210,0470,070,1300,18Width 22 does not correspond toGewichtKurzeichenseries1 in ISOstandard 10285.Normalmitausführung 2 DichtscheibenkgDesignationsLBBS 12-2LSLBBS 16-2LSLBBS 20-2LSLBBS 25-2LSLBBS 30-2LSLBBS 40-2LSLBBS 50-2LSLBBR 3-2LSLBBR 4-2LSLBBR 5-2LSLBBR 6A-2LSLBBR 8-2LSLBBR 10-2LSLBBR 12-2LSLBBR 14-2LSLBBR 16-2LSLBBR 20-2LSLBBR 25-2LSLBBR 30-2LSLBBR 40-2LSLBBR 50-2LSAppropriate special sealsDimensionsDesignationsFwDB1Appropriate special sealsDimensionsDesignationsB1Fw x4SP-40x52x5SP-50x62x55
LPBR linear plain bearingsLPBR linear plain bearings have thesame dimensions as the LBBR linearball bearings described above. Inselecting the most suitable slidematerial (polyacetal withpolyethylene) special attention wasgiven to the stick-slip-free characteristics. Furthermore the SKF linearplain bearings require little maintenance and show excellent performance under breakdown conditions.They have high static load carryingcapacity and are resistant to shockloads.The use of lubricant is recommended after installation to allowimproved running-in even when nonlubricated operation is desired.6These bearings are intended for usein those applications where linearball bearings cannot be used due toextraordinary operating conditions.This is the case especially when thebearing arrangement is subjected toheavy shock loads or vibrations or tohigh accelerations and speeds in theunloaded state.Under these operating conditionslinear plain bearings are the betterchoice compared with linear ballbearings, however, increased frictionmust be expected.
LPBR linear plain bearingsclosed designFw 12-50 mmLinear plain bearing LPBRSpecial sealDimensionsBasic road ratingsPwdyn. at0,1 m/sCDCC42830304050607010121317202427Massstat.4 m/sCDesignationLinear plainbearingC0Appropriate special 50N19,1924,2328,2435,2540,2752,3262,359651 5302 0803 4004 8007 65010 800243852851201932703 3505 4007 35012 00017 00027 00038 000kg—mm0,0060,0090,0110,0240,0330,0630,088LPBR 12LPBR 16LPBR 20LPBR 25LPBR 30LPBR 40LPBR 5012162025304050192428354052623344455G 12x19x3G 16x24x3G 20x28x4G 25x35x4G 30x40x4G 40x52x5G 50x62x5Other sizes and dimensions are available on request.* NoteThe outside diameter tolerance of the linear ball bearings and linear plain bearings issuch that no additional axial location is required when the bearings are fitted into abore with a tolerance of J7 or J6.7
Linear bearing units with LBBR linear bearings orLPB linear plain bearingsLinear bearing units incorporatingbearings of ISO series 1 are availablefor unsupported applications inclosed design.These cost-effective bearing unitsare extremely space-saving thanks tothe compactness of the design, butthey can nevertheless accommodateloads exceeding 25 000 N (e.g.LQBR 50-2LS; see also page 13).The new double lip seals fitted tothe LBBR bearings enable theseunits to run without relubrication,8under normal operating conditions.On special request, it is possible tobuy pre-greased bearings. Thisguarantees that the right amountof grease is inserted and that thegrease is properly distributed in thebearing.The systems are available in thelength required by the customer. Seealso the chapter „Precision shafts“,page 46 ff. Please note that themaximum permissible angular misalignment is 15 minutes of arc. Forthe influence on the load carryingcapacity, see diagram 9 on page 18in the technical handbook.A corrosion resistant alternativeconsists of aluminium housings withstainless steel linear ball bearingssuch as LBBR 20-2LS/HV6 or aluminium housings fitted with plainbearings.For such applications the shaftsare made of stainless steel, normallyX90 CrMoV18.
Linear bearing units with LBBR linear bearings orLPB linear plain bearingsLUHR/LUJR linear bearing unitsThese linear bearing units consist ofa housing of extruded light alloy andthe compact LBBR linear ball bearingsor the LPBR linear plain bearings ofsimilar dimensions.The LUHR design for shaft diameters from 12 to 50 mm are availablefitted as standard with LBBR linear ballbearings with or without integratedseals or with LPBR (DesignationLUHR.PB) linear plain bearings.For severe operating conditions,notably in the presence of high levelsof contamination, the extended LUJRlinear bearing units have beenincluded in the range. These incorporate LBBR linear ball bearings andtwo G type seals.LUHR and LUJR linear bearingunits cannot be relubricated. Theprevious linear bearing units LUBRand LUER are no longer shown in thecatalogue, but are still available onrequest.between the bearings, and the duoconfiguration permit easy fitting of alinear drive.LQBR quadro linear bearing unitsLTBR tandem linear bearing unitsThese comprise a one-piece extruded aluminium housing and twoLBBR linear ball bearings mountedone behind the other. These units arefitted with seals as standard and cannot be relubricated. They are particularly suitable to tables or sildes ofany width.LTDR duo linear bearing unitsFour LBBR linear ball bearings arelocated in an aluminium housing. Theunit is sealed and the bearings arespaced sufficiently to permit thefitting of an appropriate linear drive.Duo and quadro linear bearingunits based on LBBR linear ballbearings can be used to makecompact, simple table configurations. For suitable shaft blocks(LEBS), see page 41.The LTDR units are characterised bythe fitting of two LBBR-2LS linearball bearing units in parallel in analuminium housing. The separationLTBR tandem linear bearing unitLUJR linear bearing unitLUHR linear bearing unit9
LUHR and LUJR linear ball bearing unitswith closed housing and LBBR linear ball bearingsFw 12-50 mmAA1FwDaC1LUHR linear bearing unit LUJR linear bearing unitwith integral doublewith shaft sealslip sealDimensionsFw AA1 C 1 D a HN2)H1 H 2 H3 LJ3338455460769229 4,334 4,340 5,348 6,653 6,669 8,482 10,5N12)Basic load MassratingsDesigndyn. stat. LUHR LUJRCC0—NM 5M 5M 6M 8M 8M 10M 126959301 1602 1203 1505 5006 950 r bearing unit1)without withsealdouble lipsealswithshaft sealLUHR 12LUHR 16LUHR 20LUHR 25LUHR 30LUHR 40LUHR 50LUJR 12LUJR 16LUJR 20LUJR 25LUJR 30LUJR 40LUJR 50kg5106308001 5602 7004 5006 40,861,37LUHR 12-2LSLUHR 16-2LSLUHR 20-2LSLUHR 25-2LSLUHR 30-2LSLUHR 40-2LSLUHR 50-2LSThe previous linear bearing units LUBR and LUER are no longer shown in the catalogue, but are still available on request.For suitable shaft blocks for these bearing units, designation LSHS, see page 40 of this catalogue.1)2)Linear bearing units of the LUHR design are also available fitted with LPBR linear plain bearings.Designations: e. g. LUHR 20 PB.For screws with internal hexagon to DIN 912/ISO 4762.10
LTBR tandem linear bearing unitswith closed housing and LBBR linear ball bearingsFw 12-50 mmACDa FwLTBR linear bearing unitwith integral double lip sealsDimensionsFwACBasic loadratingsDaH 26JJ1LN1)mm12 6016 6520 6525 8530 10540 12550 14528303040506070192428354052621719232730394729 3534 4040 4548 5553 7069 8582 10040 4,345 4,353 5,362 6,667 6,687 8,4103 10,5N11)dyn.C—NMassLinear bearing unitwith double lip sealsstat.C0M 5 1 140 1 020M 5 1 530 1 270M 6 1 900 1 600M 8 3 450 3 150M 8 5 200 5 400M 10 9 000 9 000M 12 11 400 12 700Designationskg0,170,220,310,540,801,572,51LTBR 12-2LSLTBR 16-2LSLTBR 20-2LSLTBR 25-2LSLTBR 30-2LSLTBR 40-2LSLTBR 50-2LSFor suitable shaft blocks for these bearing units, designation LSHS, see page 40 of this catalogue.1) For screws with internal hexagon to DIN 912 / ISO 4762.11
LTDR Duo linear bearing unitswith closed housing and LBBR linear ball bearingFw 12-50 mmADaFwLDTR linear bearing unitwith integral double lip sealsDimensionsFwABasic load ratings MassDaH192428354052621517,52025283540 304050607080 40 4,396 52 4,3115 63 5,3136 75 6,6146 80 6,6184 97 8,4210 107 10,5N11)dynC—NM 5M 5M 6M 8M 8M 10M 121 1401 5301 9003 4505 2009 00011 400Linear bearing unitwith double lip sealsstat.C01 0201 2701 6003 1505 4009 00012 DR 12-2LSLTDR 16-2LSLTDR 20-2LSLTDR 25-2LSLTDR 30-2LSLTDR 40-2LSLTDR 50-2LSFor suitable shaft blocks for these bearing units, short designation LEBS.A, see page 41 of this catalogue.1)For screws with internal hexagon to DIN 912 / ISO 4762 at the centre (0,5 A) of the linear bearing unit.12
LQBR Quadro linear bearing unitswith closed housing and LBBR linear ball bearingFw 12-50 mmACDa FwBohrungsabstand J1LQBR linear bearing unitwith integral double lip sealsDimensionsFwACBasic load ratings Mass DesignationsDaH192428354052621517,52025283540 0304050607069 59 80 40 4,386 70 96 52 4,3103 73 115 63 5,3123 87 136 75 6,6133 117 146 80 6,6166 132 184 97 8,4189 154 210 107 10,5N11)dyn.C—NLinear ballbaring unitwith doublelip sealsstat.C0kgM 5 1 860 2 040 0,38M 5 2 500 2 550 0,57M 6 3 100 3 200 0,82M 8 5 600 6 300 1,43M 8 8 500 10 800 2,15M 10 14 600 18 000 3,83M 12 18 600 25 500 5,40—LQBR 12-2LSLQBR 16-2LSLQBR 20-2LSLQBR 25-2LSLQBR 30-2LSLQBR 40-2LSLQBR 50-2LSFor suitable shaft blocks for these bearing units, designation LEBS.A, see page 41 of this catalogue.1)For 4 screws with internal hexagon to DIN 912 / ISO 4762.13
LBC . A/LBH . A linear ball bearings · LPA linear plain bearingsIn order to keep abreast of everincreasing user demands, SKF Linearsysteme GmbH has fundamentallyrevised its linear ball bearings of seriesLBC (ISO series 3).The resultant new linear ball bearings offer distinct advantages over theformer LBC series and the linear ballbearings currently available in themarket. A particularly important fact isthat the new ISO series 3 bearings cannow also be supplied in a corrosionresistant standard version. Moreover,their integral double-lip seal permits‘for-life’ lubrication understandardoperating conditions.As a matter of course, the new linearball bearings are interchangeable withthe former LBC series and all linear ballbearings currently available. LBC . Alinear ball bearings are available forshaft diameters from 5 to 80 mm. Theyare characterised by high load carryingcapacity. As with all SKF linear ballbearings, they are available with achoice of shields or seals. LBC . Alinear ball bearings are, in general,designed for grease lubrication. Thecage is provided with a through-boredradial hole which permits the attachment of a grease nipple to providelongitudinal and axial location. Greasemay be applied direct onto the shaftthrough this hole. For the relubricationof LBHT . A linear ball bearings described on this page, the housing mustbe provided with a grease distributionchannel in the bore. The grease is thenforced onto the raceway between theload carrying plates.Information on the location of theseattachment holes and grease nipples isshown on pages 16 and 17 of thiscatalogue.StainlessThe application of linear bearings hasbeen extended by this new type withthe introduction of a corrosion resistantvariant Raceway segments and ballscan be specified in high alloy stainlesssteel by adding the suffix HV6 to thedesignation, e.g. LBCR 16A-2LS/HV6.In combination with our stainless steelshafts, the linear ball bearing LBC . Athus offers the possibility of realising adesign completely of stainless steel.Linear ball bearingLBCFLinear ball bearingLBCDLinear ball bearingLBCRLinear ball bearingLBHTLinear ball bearingLBCT14
LBCR . A linear ball bearingsLBCR . A linear ball bearings comprise a cage in which the balls areguided, together with the racewaysegments and the seals or shields.By virtue of their exceptionally longtrack length and the machinedraceway osculation they are able toaccommodate heavy loads.LBCR . A linear ball bearings, withtheir optimised raceway segmentsand position for maximum loadcarrying capacity, can be mounted inclosed as well as adjustablehousings. When these bearings aremounted in a closed housing, thetolerance of the inscribed diameter ofthe ball set and hence the operatingclearance is determined by thetolerance of the housing bore. Whenmounted in slotted housings thelinear guides can be adjusted to theparticular application, to provideeither operating clearance or preload.LBCR . A linear ball bearings mustbe located in axial direction.LBCD . A linear ball bearingsThe LBCD . A linear ball bearing is avariant of the LBCR . A design. Themain characteristic is a self-aligningcapa-bility which allows tilting of therace way segment through an angleof /-30 minutes of arc, thus compensating automatically for alignmenterrors which may be caused by inaccuracies in fitting or manufacturing(housing bore diameter) or by significant bending of unsupported shafts.The self-aligning qualities of thesebearings cannot however compensate for two non-parallel shafts in anassembly. Tilting of the bearing isachieved through a spherical elevation ground at the centre of theraceway segment. The diameter ofthe cage is also reduced inside thehousing, so ensuring that the bearing- and especially the shield or seals- remains concentric with the shaft.All other characteristics of theLBCR . A linear ball bearings are alsovalid for the self-aligning LBCD . Adesign. LBCD linear ball bearingsmust always be firmly located in theaxial direction.LBCT . A and LBHT . A linear ballbearingsThe open LBCT . A and LBHT . Alinear ball bearings differ from theLBCR . A bearings in that a sectorhas been cut away from the cageand the shields or seals. This allowsthe shaft to be supported at severalpositions or along its whole length,so that the accuracy of guidancecannot be affected by any shaftbending.The open design of the LBCT . Alinear ball bearings means that oneraceway is absent. The carryingcapacity in the main loading directionis however not reduced to anysignificant extent. In comparison withthe LBCT . A design, the LBHT . Alinear ball bearings have beenoptimised in terms of the number ofraceway segments and hence theload carrying capacity. They aresuitable for shaft diameters from 20to 50 mm. SKF LBCT . A andLBHT . A linear ball bearings havean important advantage comparedwith other open linear ball bearings.They are protected against contaminants by an axial lip in the cage ateach side of the opening, which actsas a gap-type seal against the shaft.Open LBCT . A/LBHT . A linear ballbearings must always be located inthe axial and turning direction.LPAR and LPAT linear plain bearingsThese linear plain bearings have thesame external dimensions as thoseof the LBA/LBC Iinear ball bearings.Technical details are as shown onpage 6 under LPBR linear plainbearings. These bearings are available in diameters from 5 to 80 mm(LPAR) and from 12 to 80 mm (LPAT)and do not have shields. All variants,except for LPAR 5 and 8 can berelubricated. Facilities for locationand securing are similar to those forthe LBC linear ball bearings butadditional axial locating by retainingrings necessary.LBCF . A linear ball bearingsFor the open linear ball bearings ofthe LBCT . A design, a self-aligningversion similar to the LBCD . Adesign is available. Here, the designadvantages of the open LBCT . Abearings are enhanced through theadded self-alignment capability.LBCF . A linear ball bearings mustalways be securely located in theaxial and turning direction.15
Axial and turning stopsfor LBC . A linear ball bearings and LPA linear plain bearingsDesign 1Design 2Design 3Design 4Design1)DimensionsAppropriategrease 5mm1216202530405060801—122344444mmVN-LHC 20VN-LHC 20VN-LHC 20VN-LHC 40VN-LHC 40VN-LHC 40VN-LHC 50VN-LHC 80VN-LHC 80M4M4M4M5M5M5M6M8M8) All linear plain bearings of Design 2) Recommendations for holes to take grease nipples: see page 17.3) Grub screws to DIN 417 and ISO 7435 or DIN 915 and ISO 4028.4) Straight pins to DIN 7, slotted pins to DIN 1481 or grooved pins to DIN 1470 and DIN 1471.5) Grub screw to DIN 551 / ISO 4766 or DIN 913 / ISO 4
This catalogue covers SKF linear ball bearings, linear plain bearings and accessories, with which it is possible to construct economic linear guides of . LBBR linear ball bearing is of a patented design. The bearing com-prises a plastic cage carrying hard-ened steel
(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
waterproof bearings skf catalog . SKF stainless steel deep groove ball bearing with solid oilContaining 2 to 4 times more oil than conventional greased bearings, SKF stainless steel deep groove ball bearings with solid oil offer re-lubrication free life . Bearing FAG BEARING - 3117150
make SKF angular contact ball bearings indispensable in many areas. Long service life and reliable performance have earned SKF angular contact ball bearings an excellent reputation in a variety of industries ranging from gearboxes to turbines. Nevertheless, the most common applications for angular contact ball bearings are pumps and compres-sors.
In 1919, SKF invented the spherical roller bearing. SKF has continued to further develop and refine the design, including the way it is sealed. The best proof of the total quality of SKF spherical roller bearings is their success. Twice as many SKF spherical roller bearings are used today as those of any other bearing manufacturer.
Important notice SKF linear ball bearings are coated with a corrosion inhibiting preservative. Before mount-ing the bearings, they should be suitably lubricated. See also Publica-tion No. 4185E, SKF Linear guide handbook. Product Overview Standard available from stock (changes reserved) Non-standard Price and delivery time on request
SKF DryLube bearings SKF DryLube bearings are designed to reduce machine operating costs, extend maintenance intervals and provide a high degree of operational reliability even in extremely high temperature applications . SKF DryLube bearings are filled with a dry lubricant, based on graphite, molybdenum disulfide (MoS 2) and a resin binder . The
3 PRACTICE TEST 01 May 2004 Question 1-10 All mammals feed their young. Beluga whale mothers, for example, nurse their calves for some twenty months, until they are about to give birth again and their young are able to
