ntn ball bearings shield and seal types 1 grooved type sealing figure for excellent performance all models 3 double-lip seal adjusts for wear llu spec a v-shaped groove is cut around the inner ring under centrifugal force the outer surface of the v acts to keep out dirt the inner surface of the v acts to seal in the grease the inner lip of a double-lip seal is pressed against the inside surface of the v-groove the outer lip is spread open by the elastic force of rubber to create a small gap between the outer lip and the inner ring should the inner lip wear the contact pressure will decrease however the outer lip will get closer to the inner ring in effect a constant degree of sealing will be maintained and as a result bearing service life will be noticeably lengthened 2 rust resistant shield zz spec inner lip outer lip n order to obtain rust resistant properties the shield is made of a strip steel covered by a hard surface-coating this assures long bearing service life and minimal nois
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ntn ball bearings shield and seal types 3 service life of prelubricating grease the service life of filled grease is influenced by many factors operating conditions temperature atmosphere etc there is even a considerable difference by grease brands keeping this in mind figure 3 presents a scale for determining grease service life it is based on actual and experimental data and applies to high-quality grease used in ball bearings under normal operating conditions as the working temperature increases the grease life of course becomes shorter although not accurate for all greases figure 3 is valid in general for working temperatures up to 80°c for working temperatures over 80°c service life decreases to about two-thirds for every 10° over 80°c please note that this does not apply to calcium-soap and aluminum-soap greases limiting speed is 11000 r/min use the value for zz or llb even if the bearings of llu specifications divide cr by the equivalent radial load pr you will obtain 12.8 195
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ntn ball bearings shield and seal types 4 bearing precision inner ring d nominal bore diameter dmp single plane mean bore diameter deviation vdp single radial plane bore diameter variation vdmp mean single plane bore diameter variation kia inner ring radial runout sd face runout with bore sia inner ring axial runout with side bs inner ring width deviation vbs inner ring width varietion outer ring d nominal outside diameter dmp single plane mean outside diameter deviation vdp single radial plane outside diameter variation vdmp mean single plane outside diameter variation kea outer ring radial runout sd outside surface inclination sea outside ring axial runout cs outer ring width deviation vcs outer ring width variation 1 inner ring tolerance vdp d mm unit m dmp class class 0 6 bearing series bearing series bearing series 68 69 60 62 63 vdmp kia sd sia bs class vbs class class class class class class1 class class class class class class class class class class class cla
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ntn ball bearings shield and seal types 5 dimension tables brrdd shielded type zz non-contact sealed type llb low torque sealed type llh contact sealed type llu d 10 25mm boundary dimensions dynamic mm kn b rs min1 cr cor cr basic load ratings static dynamic kgf cor grease zz llb limiting speeds static rpm llh llu d d 10 19 22 26 30 35 21 24 28 32 37 24 28 32 35 42 26 30 35 40 47 32 37 42 47 52 44 50 56 37 42 47 52 62 5 6 8 9 11 5 6 8 10 12 5 7 9 11 13 5 7 10 12 14 7 9 12 14 15 12 14 16 7 9 12 15 17 0.3 0.3 0.3 0.6 0.6 0.3 0.3 0.3 0.6 1 0.3 0.3 0.3 0.6 1 0.3 0.3 0.3 0.6 1 0.3 0.3 0.6 1 1.1 0.6 1 1.1 0.3 0.3 0.6 1 1.1 1.83 2.7 4.55 5.10 8.20 1.92 2.89 5.10 6.10 9.70 2.08 3.65 5.60 7.75 11.4 2.23 4.65 6.80 9.60 13.5 4.00 6.40 9.40 12.8 15.9 9.40 12.9 18.4 4.30 7.05 10.1 14.0 21.2 0.925 1.27 1.96 2.39 3.50 1.04 1.46 2.39 2.75 4.20 1.26 2.00 2.84 3.60 5.45 1.46 2.58 3.35 4.60 6.55 2.47 3.70 5.05 6.65 7.90 5.05 6.80 9.25 2.95 4.55 5.85 7.85 10.9 187 275 465 520 835 195 295 520 620 990 212 3
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ntn ball bearings shield and seal types ra da da bearing numbers 2 abutment and fillet dimensions mm mass kg non-contact sealed type type low torque type contact type da3 min max da3 max ras max approx 6800zz 6900zz 6000zz 6200zz 6300zz 6801zz 6901zz 6001zz 6201zz 6301zz 6802zz 6902zz 6002zz 6202zz 6302zz 6803zz 6903zz 6003zz 6203zz 6303zz 6804zz 6904zz 6004zz 6204zz 6304zz 60/22zz 62/22zz 63/22zz 6805zz 6905zz 6005zz 6205zz 6305zz 6800llb 6900llb 6000llb 6200llb 6300llb 6801llb 6901llb 6001llb 6201llb 6301llb 6802llb 6902llb 6002llb 6202llb 6302llb 6803llb 6903llb 6003llb 6203llb 6303llb 6804llb 6904llb 6004llb 6204llb 6304llb 60/22llb 62/22llb 63/22llb 6805llb 6905llb 6005llb 6205llb 6305llb 6000llh 6200llh 6300llh 6800llu 6900llu 6000llu 6200llu 6300llu 6801llu 6901llu 6001llu 6201llu 6301llu 6802llu 6902llu 6002llu 6202llu 6302llu 6803llu 6903llu 6003llu 6203llu 6303llu 6804llu 6904llu 6004llu 6204llu 6304llu 60/22llu 62/22llu 63/22llu 6805llu 6905llu 6005llu 6205llu 6305llu 12 12
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ntn ball bearings shield and seal types brrdd shielded type zz non-contact sealed type llb low torque sealed type llh contact sealed type llu d 28 55mm boundary dimensions dynamic mm kn b rs min1 cr cor cr basic load ratings static dynamic kgf cor grease zz llb limiting speeds static rpm llh llu d d 28 52 58 68 42 47 55 62 72 58 65 75 47 55 62 72 80 52 62 68 80 90 58 68 75 85 100 65 72 80 90 110 72 12 16 18 7 9 13 16 19 13 17 20 7 10 14 17 21 7 12 15 18 23 7 12 16 19 25 7 12 16 20 27 9 0.6 1 1.1 0.3 0.3 1 1 1.1 1 1 1.1 0.3 0.6 1 1.1 1.5 0.3 0.6 1 1.1 1.5 0.3 0.6 1 1.1 1.5 0.3 0.6 1 1.1 2 0.3 12.5 17.9 26.7 4.70 7.25 13.2 19.5 26.7 11.8 20.7 29.8 4.90 9.55 16.0 25.7 33.5 5.10 12.2 16.8 29.1 40.5 5.35 13.1 21.0 32.5 53.0 6.60 13.4 21.8 35.0 62.0 8.80 7.40 9.75 14.0 3.65 5.00 8.3 11.3 15.0 8.05 11.6 16.9 4.05 6.85 10.3 15.3 19.1 4.40 8.90 11.5 17.8 24.0 4.95 10.4 15.1 20.4 32.0 6.10 11.2 16.6 23.2 38.5 8.10 1 270 1 830 2 730 480 740 1 350 1 980 2 720 1 200 2 110 3 050 500 975 1 630 2 620
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ntn ball bearings shield and seal types ra da da bearing numbers 2 abutment and fillet dimensions mm mass kg non-contact sealed type type low torque type contact type da3 min max da3 max ras max approx 60/28zz 62/28zz 63/28zz 6806zz 6906zz 6006zz 6206zz 6306zz 60/32zz 62/32zz 63/32zz 6807zz 6907zz 6007zz 6207zz 6307zz 6808zz 6908zz 6008zz 6208zz 6308zz 6809zz 6909zz 6009zz 6209zz 6309zz 6810zz 6910zz 6010zz 6210zz 6310zz 6811zz 60/28llb 62/28llb 63/28llb 6806llb 6906llb 6006llb 6206llb 6306llb 60/32llb 62/32llb 63/32llb 6807llb 6907llb 6007llb 6207llb 6307llb 6808llb 6908llb 6008llb 6208llb 6308llb 6809llb 6909llb 6009llb 6209llb 6309llb 6810llb 6910llb 6010llb 6210llb 6310llb 6811llb 60/28llh 62/28llh 63/28llh 60/28llu 62/28llu 63/28llu 6806llu 6906llu 6006llu 6206llu 6306llu 60/32llu 62/32llu 63/32llu 6807llu 6907llu 6007llu 6207llu 6307llu 6808llu 6908llu 6008llu 6208llu 6308llu 6809llu 6909llu 6009llu 6209llu 6309llu 6810llu 6910llu 6010llu 6210llu 6310llu 6811llu 32 33 34.5 32 32
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ntn ball bearings shield and seal types brrdd shielded type zz non-contact sealed type llb low torque sealed type llh contact sealed type llu d 55 85mm boundary dimensions dynamic mm kn b rs min1 cr cor cr basic load ratings static dynamic kgf cor grease zz llb limiting speeds static rpm llh llu d d 55 80 90 100 120 78 85 95 110 130 85 90 100 120 140 90 100 110 125 150 95 105 115 130 160 100 110 125 140 170 110 120 130 150 13 18 21 29 10 13 18 22 31 10 13 18 23 33 10 16 20 24 35 10 16 20 25 37 10 16 22 26 39 13 18 22 28 1 1.1 1.5 2 0.3 1 1.1 1.5 2.1 0.6 1 1.1 1.5 2.1 0.6 1 1.1 1.5 2.1 0.6 1 1.1 1.5 2.1 0.6 1 1.1 2 2.1 1 1.1 1.1 2 16.0 28.3 43.5 71.5 11.5 16.4 29.5 52.5 82.0 11.6 17.4 30.5 57.5 92.5 12.1 23.7 38.0 62.0 104 12.5 24.4 39.5 66.0 113 12.7 24.9 47.5 72.5 123 18.7 32.0 49.5 83.5 13.3 21.2 29.2 45.0 10.6 14.3 23.2 36.0 52.0 11.0 16.1 25.2 40.0 60.0 11.9 21.2 31.0 44.0 68.0 12.9 22.6 33.5 49.5 77.0 13.3 24.0 40.0 53.0 86.5 19.0 29.6 43.0 64.0 1 630 2 880 4 450 7 300 1 170 1 670
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ntn ball bearings shield and seal types ra da da bearing numbers 2 abutment and fillet dimensions mm mass kg non-contact sealed type type low torque type contact type da3 min max da3 max ras max approx 6911zz 6011zz 6211zz 6311zz 6812zz 6912zz 6012zz 6212zz 6312zz 6813zz 6913zz 6013zz 6213zz 6313zz 6814zz 6914zz 6014zz 6214zz 6314zz 6815zz 6915zz 6015zz 6215zz 6315zz 6816zz 6916zz 6016zz 6216zz 6316zz 6817zz 6917zz 6017zz 6217zz 6911llb 6011llb 6211llb 6311llb 6812llb 6912llb 6012llb 6212llb 6312llb 6813llb 6913llb 6013llb 6213llb 6313llb 6814llb 6914llb 6014llb 6214llb 6314llb 6815llb 6915llb 6015llb 6215llb 6315llb 6816llb 6916llb 6016llb 6216llb 6316llb 6817llb 6917llb 6017llb 6217llb 6911llu 6011llu 6211llu 6311llu 6812llu 6912llu 6012llu 6212llu 6312llu 6813llu 6913llu 6013llu 6213llu 6313llu 6814llu 6914llu 6014llu 6214llu 6314llu 6815llu 6915llu 6015llu 6215llu 6315llu 6816llu 6916llu 6016llu 6216llu 6316llu 6817llu 6917llu 6017llu 6217llu 60 61.5 63 64 62 65 66.5 68 71 69 70 7
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ntn ball bearings shield and seal types brrdd shielded type zz non-contact sealed type llb contact sealed type llu d 85 160mm boundary dimensions dynamic mm kn rs min1 cr cor cr basic load ratings static dynamic kgf cor grease zz llb limiting speeds static rpm llu d d b 85 180 115 125 140 160 190 120 130 145 170 200 125 140 150 180 215 145 160 190 225 150 170 200 240 180 215 200 210 225 240 41 13 18 24 30 43 13 18 24 32 45 13 20 24 34 47 20 26 36 49 20 28 38 50 28 40 33 33 35 38 3 1 1.1 1.5 2 3 1 1.1 1.5 2.1 3 1 1.1 1.5 2.1 3 1.1 2 2.1 3 1.1 2 2.1 3 2 2.1 2 2 2.1 2.1 133 19.0 33.0 58.0 96.0 143 19.3 33.5 60.5 109 153 19.6 41.0 60.0 122 173 42.5 72.5 133 184 43.5 82.0 144 205 85.0 155 106 110 126 143 97.0 19.7 31.5 49.5 71.5 107 20.5 33.5 54.0 82.0 119 21.2 39.5 54.0 93.0 141 42.0 65.5 105 153 44.5 73.0 117 179 79.5 131 101 109 126 144 13 500 1 940 3 350 5 950 9 800 14 500 1 970 3 450 6 150 11 100 15 600 2 000 4 200 6 150 12 500 17 600 4 300 7 400 13 600 18 700 4 450 8 350 14 700 20 900
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ntn ball bearings shield and seal types ra da da bearing numbers 2 abutment and fillet dimensions mm mass kg sealed type non-contact type contact type da3 min max da3 max ras max approx 6317zz 6818zz 6918zz 6018zz 6218zz 6318zz 6819zz 6919zz 6019zz 6219zz 6319zz 6820zz 6920zz 6020zz 6220zz 6320zz 6921zz 6021zz 6221zz 6321zz 6922zz 6022zz 6222zz 6322zz 6024zz 6224zz 6026zz 6028zz 6030zz 6032zz 6317llb 6818llb 6918llb 6018llb 6218llb 6318llb 6819llb 6919llb 6019llb 6219llb 6317llu 6818llu 6918llu 6018llu 6218llu 6318llu 6819llu 6919llu 6019llu 6219llu 6319llu 6820llu 6920llu 6020llu 6220llu 6320llu 6921llu 6021llu 6221llu 6321llu 6922llu 6022llu 6222llu 6322llu 6024llu 6224llu 6026llu 6028llu 6030llu 6032llu 98 95 96.5 98 99 103 100 101.5 103 106 108 105 106.5 108 111 113 111.5 114 116 118 116.5 119 121 123 129 131 139 149 161 171 112 96 99 102 109 118 101 104 109 116 125 106 110 110 122 133 115 119 125 134 120 126 132 149 136 143 148 158 169 183 167 110 118.5 132 151 177 115 123.5 137
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