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FAG high precisioncylindrical roller bearings
High precision bearings for machine tool spindles113 553FAG high precision cylindrical roller bearingsFigure 1: FAG high precision cylindrical roller bearingunconstrained compensation of changesThe design of all FAG high precisionin length during rotational movementcylindrical roller bearings is identifiedbetween the rollers and raceways.as standard, Figure 6, by:Due to their high accuracy with high accuracy class SPradial rigidity, cylindrical roller bearings tapered inner ring bore forin a high precision variant are also used –adjustment of the radial internalin addition to their application asclearance and preload (taper 1:12)non-locating bearings – whereby axial displacement on the tapered high radial rigidityshaft seat (with a cylindrical inner high load carrying capacityring bore if required) high accuracy.is required of the bearing arrangement. solid brass cage radial internal clearance C1.Due to the high surface quality ofThe standard series N10 of a single rowbearings are used where very highdesign and NN30 of a double row designaccuracy is required, Figure 1.are a firmly established element of theTypical areas of application for theseFAG Super Precision range, together withbearings include machine tools andthe series N19 and NNU49 of smallerprinting machinery. They are ideal ascross-section for smaller centrenon-locating bearings since they allowdistances.the ring raceways and rollers, FAG highprecision cylindrical roller bearingsare particularly suitable for greaselubrication.113 557FAG high precision cylindrical rollerFigure 2: FAG hybrid cylindrical roller bearing
New HIGH SPEED cylindrical rollerroller bearing has an optimised contactCost-effective solutionbearings (N10.-HS .), Figure 3,geometry and a PEEK cage guided on theIn applications requiring high speeds and60% quicker at lower costouter rib, which gives significantly lowerwhere high load carrying capacity andAs a result of logical measures to reducefriction than with solid brass cagesrigidity are also necessary, the hybridfriction, Schaeffler Group Industrial hasguided by the rolling elements. Since thecylindrical roller bearing was previouslysucceeded in developing an FAG highlower operating temperatures are lowerthe only alternative, Figure 2. With theprecision cylindrical roller bearing withdue to the reduced friction, less strainnew FAG HIGH SPEED cylindrical rollersteel rollers that can achieve ais placed on the lubricant at the rollingbearing, a bearing with steel rollers issignificantly higher speed level thancontact. This leads to an increase innow available that can cover a goodconventional cylindrical roller bearings.the grease operating life. FAG N10.-HSportion of the speed range that wasIn comparison with conventional highcylindrical roller bearings are available inpreviously the exclusive preserve ofprecision cylindrical roller bearings, theall common bore diameters.hybrid cylindrical roller bearings.permissible speeds of the new N10.-HSAs a result, main spindles in machinecylindrical roller bearings with greasetools can with immediate effect venturelubrication are up to 60% higher, whileinto very high speed ranges withthe increase with minimal oil quantitysignificantly greater cost-effectivenesslubrication is up to 50%. The HIGH SPEEDthan before.cylindrical roller bearing can thus exceedeven the speeds achievable by hybridbearings with a brass cage and its loadcarrying capacity is only slightly lower.113 554The new FAG high precision cylindricalFigure 3: FAG HIGH SPEED cylindrical roller bearing
Catalogue on high precision bearingsof rollers (N10.-HS-.-H193)An overview of FAG high precisionIn accordance with the specificationcylindrical roller bearings giving-H193, the HIGH SPEED and hybridtolerance data, requirements forcylindrical roller bearings areadjacent parts, clearance values andmanufactured as standard with halfcomprehensive recommendationsthe number of rollers, Figure 4.on the application and fitting of theseWith the reduction in the number ofnon-locating bearings can be foundrolling elements, the speed of thesein the catalogue “Super Precisioncylindrical roller bearings can beBearings” (SP 1), Figure 5.increased further by a significantamount. This is of particular interest forthose cases where achieving very highspeeds and cost factors are of primeimportance and a reduction in radialrigidity can be accepted. These extremelyquick bearings (N10.-HS-.-H193)are used, like hybrid cylindrical rollerbearings (HCN) with half the number ofrollers, on the motor side in high speed113 555machine tools.Figure 4: FAG hybrid cylindrical roller bearing withhalf the number of rolling elements107 697Even quicker with half the numberFigure 5: SP 1
N 10 13 -K-M1 -SPHCN 10 13-C-K-PVPA-SPN 10 13-C-KHS-PVPA-SPN 10 13-C-K-DLR-HS-PVPA-SPHCN 10 13-C-K-PVPA-SP-H193N 19 20 -K-M1 -SP-C2Bearing TypeRadial ClearanceNC2HCNRadial clearance according tospecificationR40.50 Individual radial clearanceAccuracy SP and UP featuresC1NA radial clearance standardCylindrical Roller Bearing, single rowLips on inner ringOuter ring liplessCylindrical Roller Bearing, single rowCeramic rollersLips on inner ringOuter ring liplessSpecificationDimension SeriesH1931910AccuracyLight seriesMedium seriesSPUPBore Reference Number06086 · 5 30 mm8 · 5 40 mmSpecial PrecisionUltra PrecisionCageM1PVPAChange DesignationCHalf complement of rollers(speed increase)Modified internal designBrass cage, roller-guidedSolid PEEK cage(polyetheretherketone),outer ring guidanceTapered BoreSpecial DesignKTapered bore (taper 1:12)HSHigh Speed Bearingswith steel rollersExternal FormDIRECT LUBEDirect lubrication with integral O-ringsNNU 49 20- S-K-M-SPNN 30 20-AS-K-M-SPNN 30 20-AS-K-M-SP-C2Bearing TypeRadial ClearanceNNUC2NNCylindrical Roller Bearing, double rowLips on outer ringInner ring liplessCylindrical Roller Bearing, double rowLips on inner ringOuter ring liplessRadial clearance according tospecificationR40.50 Individual radial clearanceAccuracy SP and UP featuresC1NA radial clearance standardAccuracyDimension Series4930Light seriesMedium seriesSPUPSpecial PrecisionUltra PrecisionCageBore Reference NumberM06086 · 5 30 mm8 · 5 40 mmBrass cage, roller-guidedTapered BoreKTapered bore (taper 1:12)SASFigure 6: Bearing designationLubricating groove and holes onthe outer ringLubricating groove and holes onthe outer ring Series NN30113 556External Form
MATNR 034955054-0000 / SSD 6 / GB-D / 201109.5 / Printed in Germany by mandelkowYour contactDr. Martin VollTelephone 49 9721 91-1306Martin.Voll@schaeffler.comSchaeffler TechnologiesGmbH & Co. KGGeorg-Schäfer-Straße 3097421 Schweinfurt (Germany)www.schaeffler.com
In accordance with the specification-H193, the HIGH SPEED and hybrid cylindrical roller bearings are manufactured as standard with half the number of rollers, Figure 4. With the reduction in the number of rolling elements, the speed of these cylindrical roller bearings can be increased further by a significant amount. This is of particular .
