rbc thin section ball bearing selection there are three basic types of rbc thin section ball bearings each of which is designed to provide maximum performance under different load conditions the following chart can be used as a general guide for the selection of a basic bearing type load condition bearing type c a x contact radial angular 4-point radial excellent good fair axial good excellent good moment good do not use excellent reversing axial good do not use excellent combined radial-thrust good good fair radial contact bearings the c-type radial contact ball bearing is designed with deep ball grooves to withstand high loads although this bearing is used primarily in applications with radial loads it can withstand moderate axial loads reversing axial loads and moment loads c-type radial contact angular contact bearings in applications with high axial loads the a-type angular contact ball bearing should be used this bearing also works well in radial or combined radial-thrust applica
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radial contact c-type thin section ball bearings series cross section size part number ka060cp0rbc kb060cp0rbc kc060cp0rbc kd060cp0rbc kf060cp0rbc kg060cp0rbc ka065cp0rbc kb065cp0rbc kc065cp0rbc kd065cp0rbc kf065cp0rbc kg065cp0rbc ka070cp0rbc kb070cp0rbc kc070cp0rbc kd070cp0rbc kf070cp0rbc kg070cp0rbc ka075cp0rbc kb075cp0rbc kc075cp0rbc kd075cp0rbc kf075cp0rbc kg075cp0rbc ka080cp0rbc kb080cp0rbc kc080cp0rbc kd080cp0rbc kf080cp0rbc kg080cp0rbc ka090cp0rbc kb090cp0rbc kc090cp0rbc kd090cp0rbc kf090cp0rbc kg090cp0rbc ka100cp0rbc kb100cp0rbc kc100cp0rbc kd100cp0rbc kf100cp0rbc kg100cp0rbc kaa 3/16 ka 1/4 kb 5/16 kc 3/8 kd 1/2 kf 3/4 kg 1 nominal dimensions in inches b bore 6.0000 6.0000 6.0000 6.0000 6.0000 6.0000 6.5000 6.5000 6.5000 6.5000 6.5000 6.5000 7.0000 7.0000 7.0000 7.0000 7.0000 7.0000 7.5000 7.5000 7.5000 7.5000 7.5000 7.5000 8.0000 8.0000 8.0000 8.0000 8.0000 8.0000 9.0000 9.0000 9.0000 9.0000 9.0000 9.0000 10.0000 10.0000 10.0000 10.0000 10.0000 10.0000 d outside diamet
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angular contact a-type thin section ball bearings series kaa cross section size 3/16 part number kaa10ag0rbc kaa15ag0rbc ka020ar0rbc kb020ar0rbc ka025ar0rbc kb025ar0rbc ka030ar0rbc kb030ar0rbc ka035ar0rbc kb035ar0rbc ka040ar0rbc kb040ar0rbc kc040ar0rbc kd040ar0rbc kf040ar0rbc kg040ar0rbc ka042ar0rbc kb042ar0rbc kc042ar0rbc kd042ar0rbc kf042ar0rbc kg042ar0rbc ka045ar0rbc kb045ar0rbc kc045ar0rbc kd045ar0rbc kf045ar0rbc kg045ar0rbc ka047ar0rbc kb047ar0rbc kc047ar0rbc kd047ar0rbc kf047ar0rbc kg047ar0rbc ka050ar0rbc kb050ar0rbc kc050ar0rbc kd050ar0rbc kf050ar0rbc kg050ar0rbc ka055ar0rbc kb055ar0rbc kc055ar0rbc kd055ar0rbc kf055ar0rbc kg055ar0rbc b bore 1.0000 1.5000 2.0000 2.0000 2.5000 2.5000 3.0000 3.0000 3.5000 3.5000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.2500 4.2500 4.2500 4.2500 4.2500 4.2500 4.5000 4.5000 4.5000 4.5000 4.5000 4.5000 4.7500 4.7500 4.7500 4.7500 4.7500 4.7500 5.0000 5.0000 5.0000 5.0000 5.0000 5.0000 5.5000 5.5000 5.5000 5.5000 5.5000 5.5000 ka 1/4 kb 5/16 w wi
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angular contact a-type thin section ball bearings series kaa cross section size 3/16 part number ka110ar0rbc kb110ar0rbc kc110ar0rbc kd110ar0rbc kf110ar0rbc kg110ar0rbc ka120ar0rbc kb120ar0rbc kc120ar0rbc kd120ar0rbc kf120ar0rbc kg120ar0rbc kb140ar0rbc kc140ar0rbc kd140ar0rbc kf140ar0rbc kg140ar0rbc kb160ar0rbc kc160ar0rbc kd160ar0rbc kf160ar0rbc kg160ar0rbc kb180ar0rbc kc180ar0rbc kd180ar0rbc kf180ar0rbc kg180ar0rbc kb200ar0rbc kc200ar0rbc kd200ar0rbc kf200ar0rbc kg200ar0rbc kc250ar0rbc kd250ar0rbc kf250ar0rbc kg250ar0rbc kc300ar0rbc kd300ar0rbc kf300ar0rbc kg300ar0rbc kf350ar0rbc kg350ar0rbc kf400ar0rbc kg400ar0rbc b bore 11.0000 11.0000 11.0000 11.0000 11.0000 11.0000 12.0000 12.0000 12.0000 12.0000 12.0000 12.0000 14.0000 14.0000 14.0000 14.0000 14.0000 16.0000 16.0000 16.0000 16.0000 16.0000 18.0000 18.0000 18.0000 18.0000 18.0000 20.0000 20.0000 20.0000 20.0000 20.0000 25.0000 25.0000 25.0000 25.0000 30.0000 30.0000 30.0000 30.0000 35.0000 35.0000 40.0000 40.0000 ka 1/4 kb 5/16
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4-point contact x-type thin section ball bearings series cross section size part number ka060xp0rbc kb060xp0rbc kc060xp0rbc kd060xp0rbc kf060xp0rbc kg060xp0rbc ka065xp0rbc kb065xp0rbc kc065xp0rbc kd065xp0rbc kf065xp0rbc kg065xp0rbc ka070xp0rbc kb070xp0rbc kc070xp0rbc kd070xp0rbc kf070xp0rbc kg070xp0rbc ka075xp0rbc kb075xp0rbc kc075xp0rbc kd075xp0rbc kf075xp0rbc kg075xp0rbc ka080xp0rbc kb080xp0rbc kc080xp0rbc kd080xp0rbc kf080xp0rbc kg080xp0rbc ka090xp0rbc kb090xp0rbc kc090xp0rbc kd090xp0rbc kf090xp0rbc kg090xp0rbc ka100xp0rbc kb100xp0rbc kc100xp0rbc kd100xp0rbc kf100xp0rbc kg100xp0rbc b bore kaa 3/16 ka 1/4 kb 5/16 w width 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 kc 3/8 kd 1/2 land diameter 6.188 6.234 6.281 6.375 6.563 6.750 6.688
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sealed radial contact c-type thin section ball bearings w to clear .015 max 4 places d mo mi b nominal dimensions in inches part number ju040cp0rbc ju042cp0rbc ju045cp0rbc ju047cp0rbc ju050cp0rbc ju055cp0rbc ju060cp0rbc ju065cp0rbc ju070cp0rbc ju075cp0rbc ju080cp0rbc ju090cp0rbc ju100cp0rbc ju110cp0rbc ju120cp0rbc b bore 4.0000 4.2500 4.5000 4.7500 5.0000 5.5000 6.0000 6.5000 7.0000 7.5000 8.0000 9.0000 10.0000 11.0000 12.0000 d outside diameter 4.7500 5.0000 5.2500 5.5000 5.7500 6.2500 6.7500 7.2500 7.7500 8.2500 8.7500 9.7500 10.7500 11.7500 12.7500 w width 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 mi 4.155 4.405 4.655 4.905 5.155 5.655 6.155 6.655 7.155 7.655 8.155 9.155 10.155 11.155 12.155 mo 4.550 4.800 5.050 5.300 5.550 6.050 6.550 7.050 7.550 8.050 8.550 9.550 10.550 11.550 12.550 ball diameter 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 ball quantity 35 37 39 41 43 47 51 55 59 63 67 75 83 91 99 the
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thin section ball bearing engineering data he methods equa tions and technical data presented in this section allow the user to select the correct bearings and estimate their performance for a wide range of applications for applications with severe or unusual operating conditions rbc is prepared to provide an in-depth analysis and recommend the most suitable bearing arrangement where standard bearings cannot be used rbc can meet the application requirements with a special bearing design specifically tailored for optimum performance contact your rbc sales engineer for special sizes materials application requirements dimensions and tolerances t the rating life l10 is a statistical measure of the life which 90 of a large group of apparently identical ball bearings will achieve or exceed for a single bearing l10 also refers to the life associated with 90 reliability median life l50 is the life which 50 of the group of ball bearings will achieve or exceed median life is approximately five
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mounting arrangements when selecting a mounting arrangement for rbc thin section ball bearings you must first consider the loading condition a duplex pair of angular contact bearings may be used for combined loading moment loading or heavy thrust loading combination a and c-type a and x-type or c and x-type bearings are common mounting arrangements two x-type bearings should never be mounted on the same shaft there may be many different bearing arrangements for carrying the same load some typical mounting arrangements are shown below reversing loads the duplex pair of a-type bearings offers several configurations for reversing loads either back-toback b-type or face-to-face f-type should be used the f-type mounting method demonstrates reversing thrust load combined radial and thrust loads are shown on the b-type configuration both of these methods can be used for heavy radial loads combined thrust and radial loads or moment loads shim here for proper axial preload radial load radial lo
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rbc thin section ball bearings tolerance tables recommended fits rbc precision class 4 abec 5f diameters bearing bore size bore o.d inches nominal nominal 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.25 4.50 4.75 5.00 5.50 6.00 6.50 7.00 7.50 8.00 9.00 10.00 11.00 12.00 14.00 16.00 18.00 20.00 -2 -2 -3 -3 -3 -3 -3 -3 -3 -4 -4 -4 -4 -4 -4 -5 -5 -5 -5 -5 -5 -6 -6 -6 -7 -2 -2 -3 -3 -3 -3 -3 -4 -4 -4 -4 -5 -5 -5 -5 -5 -5 -5 -5 -5 -6 -6 -7 -7 -8 values in 0.0001 inches all types stationary shaft bearing radial play rotating shaft before installation c&x-type only shaft od housing id shaft od housing id width nominal nominal max min max min nominal min max -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -50 -100 -100 -100 -100 5 5 5 5 6 6 6 8 8 8 8 10 10 10 10 10 10 10 10 10 12 12 14 14 14 9 9 9 9 12 12 12 14 14 14 14 16 16 16 16 16 16 16 16 16 18 18 20 20 22 +2 +2 +3 +3 +3 +3 +3 +3 +3 +4 +4 +4 +4 +4 +4 +5 +5 +5 +5 +5 +5 +6 +6 +6 +7 +2 +2 +3 +3 +3 +3 +3 +4 +4 +4 +4 +
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typical applications t hin section ball bearings are generally used in applica tions with space weight and load constraints some typical applications for standard rbc thin section ball bearings include medical equipment radar equipment material handling antenna pedestals aerospace optical equipment rotary joints military turrets robotics speed reducers machine tools textile machinery satellite systems packaging machinery scanning equipment semi-conductor manufacturing equipment slip ring assemblies harmonic drives paper making machine a pair of radial contact rbc thin section ball bearings is the ideal choice for applications with severe space constraints and significant loads rotary table using a 4-point contact bearing provides high stiffness with minimum deflection resulting in a streamlined and lightweight design direct drive assembly a duplex pair of angular contact rbc thin section ball bearings provide the optimal load carrying capabilities in a compact design rotating polishin
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innovation commitment quality rbc has been producing bearings in the usa since 1919 in addition to unique custom bearings rbc offers a full line of standard industrial and aerospace bearings including spherical plain bearings radial angular contact extended inner ring high misalignment duralubetm quadlube® impacttuff® spreadlock® seal crosslube® bearings and selflubricating bearings available in inch and metric sizes rod ends commercial and industrial precision mil-spec series self-lubricating and aircraft heim unibal® and spherco® brands available in inch and metric sizes thin section ball bearings standard cross sections to one inch sizes to 40 inches stainless steel and other materials are available seals are available on all sizes and standard cross sections ball bearings precision ground semiground unground high loads long life smooth operation nice brand is offered in caged and full complement configurations self-lubricating bearings radial thrust rod ends spherical bearings high
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