24 results for dt 1 found in 0.000 seconds

under constant operating conditions 1 fluctuating stepped load the mean ... loads is calculated from formula 4.12 f1 f2 fn are the loads acting on ... times respectively fm fi ni ti ni ti p 1p 3 linear fluctuating load the mean load ... fm can be approximated by formula 4.14 fm fmin 3 2fmax 4.14 f fmax fm fmin 4. ... 12 fig 4.10 linear fluctuating load t where p 3 p ... 10 3 for ball bearings for roller bearings ... fm can be approximated by formulas 4.15 and 4.16 case a case b fm fm 0.75 fmax ... 0.65 fmax 4.15 4.16 fn n1 t1 n2t2 nn tn f fmax fig 4.8 ... mean load is found by using formula 4.13 fm 1 to to ftotafp 1p dt 4.13 fmax fm ... where p 3 p 10 3 for ball bearings for roller bearings ... tbfft fm fig 4.11 sinusoidal variable load to to t fig 4. ...

inner ring bore standard taper ratio 1:12 duplex internal clearance arrangement ... arrangement df face-to-face arrangement dt tandem arrangement d2 two matched ... internal clearance greater than normal 1 cage code l1 high strength machined ... type ring bore standard taper llh ratio 1:30 synthetic rubber seal n low-torque type ...

tolerances are shown in table 7.1 generally-used standard fits for most ... of interference keep in mind that 1 interference is reduced by radial loads ... interference should be no more than 1:1000 of the shaft diameter or outer diameter ... calculations are shown below 1 radial loads and required interference ... in such cases is shown in formulae 7.1 and 7.2 fr 0.3 cor 1/2 df 0.08 d fr b ... 1/2 0.25 d fr b 0.3 cor fr df 0.02 fr b ... 0.2 fr b n kgf n kgf 7.1 shown in formulae 7.1 dt 0.0015 d t 7 ... .3 dt required effective interference for ... reductions for ground shafts 1.0 2.5 m for lathed shafts 5.0 7.0 m 4 ... the previously mentioned ratio of 1:1,000 of shaft or outside diameter 7.3.4 ... other details 1 tight interference fits are recommended ... g6 h5 h6 j5 k5 j6 k6 m5 m6 shafts fig 7.1 a-48 ...

db face-to face duplex df tandem duplex dt types and characteristics ... loads can be accommodated r r note 1 duplex bearings are manufactured in a ... consult ntn engineering for details 1.2 four-point angular contact ball ... either db or df series bearings dt series bearings can also be used in ... offset b back face front face diagram 2 1.3 double row angular contact ball ...

arrangement df a tandem arrangement dt 1 2 d 10 30mm boundary dimensions mm ... mass kg single approx ddbb rls min 3 cr 10 26 30 30 35 35 28 32 32 37 37 32 35 35 ... 47 52 52 42 47 52 52 62 62 47 55 8 9 9 11 11 8 10 10 12 12 9 11 11 13 13 10 12 12 ... 14 14 12 14 14 15 15 9 12 15 15 17 17 9 13 16 18 18 22 22 16 20 20 24 24 18 ... 22 26 26 20 24 24 28 28 24 28 28 30 30 18 24 30 30 34 34 18 26 0.3 0.6 0.6 0.6 0. ... 6 0.3 0.6 0.6 1 1 0.3 0.6 0.6 1 1 0.3 0.6 0.6 1 1 0.6 1 1 1.1 1.1 0.3 0.6 ... 1 1 1.1 1.1 0.3 1 0.15 0.3 0.3 0.3 0.3 0.15 0.3 0.3 0.6 0.6 0. ...

pr xfr yfa contact angle e single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1 1 0 0 0.39 0.76 0.35 0.57 1 1 0.78 0.63 1.24 0.55 0.57 0.93 r1a ra ra ... db da da r1a db 30° 0.80 40° 1.14 static por xo fr contact angle yo fa db ... df single dt xo yo 0.5 0.5 0.33 0.26 xo 1 1 30° 40° ... yo 0.66 0.52 for single and dt arrangement when por fr use por fr ... limiting speeds duplex rpm grease oil 1 bearing numbers 2 abutment and fillet ... dimensions mm da max db df dt da min db min db max ras max r1as max 7 ... .50 8.80 8.10 16.5 15.4 8.20 12.3 11.4 18.2 17.1 9.40 14.7 13.6 21.9 20.3 11.6 19.4 ... 17.9 25.9 24.0 15.8 23.6 21.6 30.5 28.2 11.6 17.5 26.3 24.0 ...

arrangement df a tandem arrangement dt 1 2 d 30 55mm boundary dimensions mm ... 72 80 80 62 68 80 80 90 90 68 75 85 85 100 100 72 80 90 90 110 110 80 90 100 100 ... 120 120 16 16 19 19 10 14 17 17 21 21 12 15 18 18 23 23 12 16 19 19 25 25 12 16 ... 20 20 27 27 13 18 21 21 29 29 32 32 38 38 20 28 34 34 42 ... 50 24 32 40 40 54 54 26 36 42 42 58 58 1 1 1.1 1.1 0.6 1 1.1 1.1 1.5 1.5 0.6 1 1 ... .1 1.1 1.5 1.5 0.6 1 1.1 1.1 1.5 1.5 0.6 1 1.1 1.1 2 2 1 1.1 1.5 1.5 2 2 0.6 ...

pr xfr yfa contact angle e single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1 1 0 0 0.39 0.76 0.35 0.57 1 1 0.78 0.63 1.24 0.55 0.57 0.93 r1a ra ra ... db da da r1a db 30° 0.80 40° 1.14 static por xo fr contact angle yo fa db ... df single dt xo yo 0.5 0.5 0.33 0.26 xo 1 1 30° 40° ... yo 0.66 0.52 for single and dt arrangement when por fr use por fr ... limiting speeds duplex rpm grease oil 1 bearing numbers 2 abutment and fillet ... dimensions mm da max db df dt da min db min db max ras max r1as max ... 36.5 33.5 54.5 50.0 19.5 28.5 48.5 44.0 65.0 59.5 20.6 30.5 57.5 ... 52.0 79.5 73.0 25.5 36.0 64.5 58.5 103 95.0 27.0 38.5 67.0 60.5 121 111 28.1 ... 50.5 83.0 75.0 139 128 29.6 27.1 44.5 41.0 17.7 25.1 40.0 36.5 52.5 48.5 ...

arrangement df a tandem arrangement dt 1 2 d 60 85mm boundary dimensions mm ... approx ddbb rls min 3 cr 60 85 95 110 110 130 130 90 100 120 120 140 140 100 110 ... 125 125 150 150 105 115 130 130 160 160 110 125 140 140 170 170 120 130 150 150 13 ... 18 22 22 31 31 13 18 23 23 33 33 16 20 24 24 35 35 16 20 25 25 37 37 16 22 ... 26 26 39 39 18 22 28 28 26 36 44 44 62 62 26 36 46 46 ... 50 74 74 32 44 52 52 78 78 36 44 56 56 1 1.1 1.5 1.5 2.1 2.1 1 1.1 1.5 1.5 2.1 2 ... .1 1 1.1 1.5 1.5 2.1 2.1 1 1.1 1.5 1.5 2.1 2.1 1 1.1 2 2 2.1 2.1 1.1 1.1 2 2 0 ...

pr xfr yfa contact angle e single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1 1 0 0 0.39 0.76 0.35 0.57 1 1 0.78 0.63 1.24 0.55 0.57 0.93 r1a ra ra ... db da da r1a db 30° 0.80 40° 1.14 static por xo fr contact angle yo fa db ... df single dt xo yo 0.5 0.5 0.33 0.26 xo 1 1 30° 40° ... yo 0.66 0.52 for single and dt arrangement when por fr use por fr ... limiting speeds duplex rpm grease oil 1 bearing numbers 2 abutment and fillet ... dimensions mm da max db df dt da min db min db max ras max r1as max ... 29.3 52.0 100 91.0 159 146 29.7 55.0 114 103 180 166 42.5 69.5 124 112 203 186 ... 43.0 71.0 128 116 221 202 43.5 86.5 145 131 239 219 59.0 89.0 162 146 35.0 56.0 98. ...

arrangement df a tandem arrangement dt 1 2 d 85 120mm boundary dimensions mm ... kg single approx ddbb rls min 3 cr 85 180 180 125 140 160 160 190 190 130 145 170 ... 170 200 200 140 150 180 180 215 215 145 160 190 190 225 225 150 170 200 200 240 ... 240 165 41 41 18 24 30 30 43 43 18 24 32 32 45 45 20 24 34 34 47 47 20 26 ... 68 94 94 40 52 72 72 98 98 40 56 76 76 100 100 44 3 3 1.1 1.5 2.0 2.0 3.0 3.0 1.1 ... 1.5 2.1 2.1 3 3 1.1 1.5 2.1 2.1 3 3 1.1 2 2.1 2.1 3 3 1.1 2 2.1 2.1 3 3 1.1 1.1 ... 1.1 0.6 1 1 1 1.1 1.1 0.6 1 1.1 1.1 1.1 1.1 0.6 1 1.1 1.1 1.1 1.1 0.6 1 1.1 1.1 ...

pr xfr yfa contact angle e single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1 1 0 0 0.39 0.76 0.35 0.57 1 1 0.78 0.63 1.24 0.55 0.57 0.93 r1a ra ra ... db da da r1a db 30° 0.80 40° 1.14 static por xo fr contact angle yo fa db ... df single dt xo yo 0.5 0.5 0.33 0.26 xo 1 1 30° 40° ... yo 0.66 0.52 for single and dt arrangement when por fr use por fr ... limiting speeds duplex rpm grease oil 1 bearing numbers 2 abutment and fillet ... dimensions mm da max db df dt da min db min db max ras max r1as max ... 258 236 58.0 106 191 173 277 254 60.5 109 217 196 297 272 78.0 111 233 212 335 ... 310 79.0 130 254 231 355 330 80.0 149 276 250 400 365 99.0 265 244 75.5 127 ... 206 188 294 270 81.5 134 236 215 325 298 105 141 251 229 385 355 ...

arrangement df a tandem arrangement dt 1 d 120 170mm boundary dimensions mm ... mass kg single approx ddbb rls min 2 cr 120 180 215 215 260 260 180 200 230 230 280 ... 280 190 210 250 250 300 300 210 225 270 270 320 ... 38 48 48 68 68 28 42 52 52 72 56 80 80 110 110 48 66 80 80 116 116 48 66 84 84 124 ... 124 56 70 90 90 130 130 56 76 96 96 136 136 56 84 104 104 144 2 2.1 2.1 3 3 1.5 ... 2 3 3 4 4 1.5 2 3 3 4 4 2 2.1 3 3 4 4 2 2.1 3 3 4 4 2 2.1 4 4 4 1 1.1 ... 1.1 1.1 1.1 1 1 1.1 1.1 1.5 1.5 1 1 1.1 1.1 1.5 1.5 1 1.1 1.1 1.1 1.5 1.5 1 1.1 ...

pr xfr yfa contact angle e single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1 1 0 0 0.39 0.76 0.35 0.57 1 1 0.78 0.63 1.24 0.55 0.57 0.93 r1a ra ra ... db da da r1a da 30° 0.80 40° 1.14 static por xo fr contact angle yo fa db ... df single dt xo yo 0.5 0.5 0.33 0.26 xo 1 1 30° 40° ... yo 0.66 0.52 for single and dt arrangement when por fr use por fr ... duplex rpm grease oil bearing numbers 1 abutment and fillet dimensions mm db ... max db df dt da min da max ras max r1as max 152 297 ... 269 400 365 121 191 320 288 445 405 123 194 330 297 490 445 158 222 375 340 535 490 ... 160 252 425 385 565 515 165 300 480 435 630 197 355 325 505 460 175 ... 251 395 360 585 535 180 265 430 390 670 615 234 305 515 470 765 ...

arrangement df a tandem arrangement dt 1 d 170 300mm boundary dimensions mm ... mass kg single approx ddbb rls min 2 cr 170 360 250 280 320 320 380 380 260 290 340 ... 78 78 38 51 58 58 80 80 38 38 46 46 56 144 66 92 104 104 150 150 66 92 110 110 156 ... 156 76 102 116 116 160 160 76 76 92 92 112 4 2 2.1 4 4 4 4 2 2.1 4 4 5 5 2.1 2.1 4 ... 4 5 5 2.1 2.1 2.1 2.1 3 1.5 1 1.1 1.5 1.5 1.5 1.5 1 1.1 1.5 1.5 2 2 1.1 1.1 1.5 1 ... .5 2 2 1.1 1.1 1.1 1.1 1.1 355 131 219 305 276 410 375 133 224 305 273 430 ... 390 185 252 335 305 450 410 187 197 258 261 325 445 163 266 385 350 535 490 ...

pr xfr yfa contact angle e single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1 1 0 0 0.39 0.76 0.35 0.57 1 1 0.78 0.63 1.24 0.55 0.57 0.93 r1a ra ra ... db da da r1a da 30° 0.80 40° 1.14 static por xo fr contact angle yo fa db ... df single dt xo yo 0.5 0.5 0.33 0.26 xo 1 1 30° 40° ... yo 0.66 0.52 for single and dt arrangement when por fr use por fr ... duplex rpm grease oil bearing numbers 1 abutment and fillet dimensions mm db ... max db df dt da min da max ras max r1as max 575 213 ... 305 320 420 425 530 890 325 530 770 700 1 070 975 335 560 780 705 1 170 1 070 465 ... 650 900 815 1 210 1 110 475 530 750 775 1 040 59,000 90,500 1, ... 400 2,000 1,900 1,700 1,400 1,500 1,300 1,900 1,800 1,600 1,400 1,400 1,200 1,800 1, ...

arrangement df a tandem arrangement dt d 10 40mm boundary dimensions mm basic ... speeds static rpm cor grease oil kgf 1 static cor dynamic cr bearing numbers ... mass kg single approx ddbb rls min 2 cr 10 12 15 26 30 28 32 32 35 42 35 40 47 42 ... 62 72 47 55 62 72 80 52 62 68 80 8 9 8 10 9 11 13 10 12 14 12 14 15 7 9 12 15 17 ... 7 9 13 16 19 7 10 14 17 21 7 12 15 18 16 18 16 20 18 22 26 20 24 28 24 28 30 14 ... 18 24 30 34 14 18 26 32 38 14 20 28 34 42 14 24 30 36 0.3 0.6 0.3 0.6 ... 0.3 0.6 1 0.3 0.6 1 0.6 1 1.1 0.3 0.3 0.6 1 1.1 0.3 0.3 1 1 1.1 0.3 0 ...

da ra da cor 0.010 0.020 0.040 0.070 0.10 0.15 0.20 0.30 0.40 0.50 e 0.37 0.39 0. ... 44 0.46 0.49 0.51 0.55 0.56 0.56 single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1.51 1.45 1.36 1.28 0.44 1.22 1.15 1.10 1.02 1.00 1.00 2.46 1.70 2.35 1.62 ... 2.21 1.52 2.08 1.43 1.37 0.72 1.98 1.87 1.29 1.78 1.23 1.66 1.15 1.63 1.12 1.63 ... 1.12 1 0 1 static por xo fr yo fa db df single dt ... xo yo 0.5 0.46 xo 1 yo 0.92 for single and dt arrangement ... when por fr use por fr 1 basic load ratings dynamic static ... and fillet dimensions mm db max db df dt da min da max ras max r1as max 7.95 8. ... 80 8.80 11.5 10.1 14.6 21.6 12.5 18.1 25.6 17.0 23.7 30.0 8.20 12.7 19.0 27.0 ...

arrangement df a tandem arrangement dt d 40 75mm boundary dimensions mm basic ... speeds static rpm cor grease oil kgf 1 static cor dynamic cr bearing numbers ... ddbb rls min 2 cr 40 90 58 68 75 85 100 65 72 80 90 110 72 80 90 100 120 78 85 ... 95 110 130 85 90 100 120 140 90 100 110 125 150 95 105 23 7 12 16 19 25 7 12 16 20 ... 27 9 13 18 21 29 10 13 18 22 31 10 13 18 23 33 10 16 20 24 35 10 16 46 14 24 32 ... 38 50 14 24 32 40 54 18 26 36 42 58 20 26 36 44 62 20 26 36 46 ... 66 20 32 40 48 70 20 32 1.5 0.3 0.6 1 1.1 1.5 0.3 0.6 1 1.1 2 0.3 1.0 1.1 1.5 2.0 ...

da ra da cor 0.010 0.020 0.040 0.070 0.10 0.15 0.20 0.30 0.40 0.50 e 0.37 0.39 0. ... 44 0.46 0.49 0.51 0.55 0.56 0.56 single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1.51 1.45 1.36 1.28 0.44 1.22 1.15 1.10 1.02 1.00 1.00 2.46 1.70 2.35 1.62 ... 2.21 1.52 2.08 1.43 1.37 0.72 1.98 1.87 1.29 1.78 1.23 1.66 1.15 1.63 1.12 1.63 ... 1.12 1 0 1 static por xo fr yo fa db df single dt ... xo yo 0.5 0.46 xo 1 yo 0.92 for single and dt arrangement ... when por fr use por fr 1 basic load ratings dynamic static ... and fillet dimensions mm db max db df dt da min da max ras max r1as max 80.0 12. ...

arrangement df a tandem arrangement dt d 75 105mm boundary dimensions mm basic ... speeds static rpm cor grease oil kgf 1 static cor dynamic cr bearing numbers ... kg single approx ddbb rls min 2 cr 75 115 130 160 100 110 125 140 170 110 120 130 ... 150 180 115 125 140 160 190 120 130 145 170 200 125 140 150 180 215 130 145 160 ... 190 225 20 25 37 10 16 22 26 39 13 18 22 28 41 13 18 24 30 43 13 18 24 32 45 ... 13 20 24 34 47 13 20 26 36 49 40 50 74 20 32 44 52 78 26 ... 48 64 90 26 40 48 68 94 26 40 52 72 98 1.1 1.5 2.1 0.6 1 1.1 2 2.1 1 1.1 1.1 2 3 1 ...

da ra da cor 0.010 0.020 0.040 0.070 0.10 0.15 0.20 0.30 0.40 0.50 e 0.37 0.39 0. ... 44 0.46 0.49 0.51 0.55 0.56 0.56 single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1.51 1.45 1.36 1.28 0.44 1.22 1.15 1.10 1.02 1.00 1.00 2.46 1.70 2.35 1.62 ... 2.21 1.52 2.08 1.43 1.37 0.72 1.98 1.87 1.29 1.78 1.23 1.66 1.15 1.63 1.12 1.63 ... 1.12 1 0 1 static por xo fr yo fa db df single dt ... xo yo 0.5 0.46 xo 1 yo 0.92 for single and dt arrangement ... when por fr use por fr 1 basic load ratings dynamic static ... and fillet dimensions mm db max db df dt da min da max ras max r1as max 78.0 129 ...

arrangement df a tandem arrangement dt d 110 200mm boundary dimensions mm ... speeds static rpm cor grease oil kgf 1 static cor dynamic cr bearing numbers ... mass kg single approx ddbb rls min 2 cr 110 140 150 170 200 240 150 165 180 215 165 ... 180 200 230 175 190 210 250 190 210 225 270 200 220 240 215 230 260 280 ... 290 310 16 20 28 38 50 16 22 28 40 18 24 33 40 18 24 33 42 20 28 35 45 20 28 ... 38 22 28 42 46 46 51 32 40 56 76 100 32 44 56 80 36 48 66 80 36 48 66 84 40 ... 56 70 90 40 56 76 44 56 84 92 92 102 1 1.1 2 2.1 3 1 1.1 2 2.1 1.1 1.5 2 3 1.1 1.5 ... 2 3 1.1 2 2.1 3 1.1 2 2.1 1.1 2 2.1 2.1 2.1 2.1 0.6 0.6 1 1.1 1.1 0.6 0.6 1 1.1 ...

da ra da cor 0.010 0.020 0.040 0.070 0.10 0.15 0.20 0.30 0.40 0.50 e 0.37 0.39 0. ... 44 0.46 0.49 0.51 0.55 0.56 0.56 single dt db df fa fr e fa fr e fa fr e fa fr ... exyxyxyxy 1.51 1.45 1.36 1.28 0.44 1.22 1.15 1.10 1.02 1.00 1.00 2.46 1.70 2.35 1.62 ... 2.21 1.52 2.08 1.43 1.37 0.72 1.98 1.87 1.29 1.78 1.23 1.66 1.15 1.63 1.12 1.63 ... 1.12 1 0 1 static por xo fr yo fa db df single dt ... xo yo 0.5 0.46 xo 1 yo 0.92 for single and dt arrangement ... when por fr use por fr 1 basic load ratings dynamic static ... and fillet dimensions mm db max db df dt da min da max ras max r1as max 56.0 89. ... 0 164 286 405 57.0 109 168 325 76.0 134 210 345 77.5 136 214 360 98.5 175 245 ...