24 results for dts found in 0.000 seconds

bearing load calculation 4.3 mean load the load on bearings used in machines under normal circumstances will in many cases fluctuate according to a fixed time period or planned operation schedule the load on bearings operating under such conditions can be converted to a mean load fm this is a load which gives bearings the same life they would have under constant operating conditions 1 fluctuating stepped load the mean bearing load fm for stepped loads is calculated from formula 4.12 f1 f2 fn are the loads acting on the bearing n1 n2 nn and t1 t2 tn are the bearing speeds and operating times ...

boundary dimensions and bearing number codes supplementary suffix codes internal modifications code u internationally interchangeable tapered roller bearings r noninternationally interchangeable tapered roller bearings st low torque tapered roller bearings ht high axial load use cylindrical roller bearings seal shield code llb synthetic rubber seal noncontact type raceway configuration code k tapered inner ring bore standard taper ratio 1:12 duplex internal clearance arrangement code /preload code db back-to-back arrangement df face-to-face arrangement dt tandem arrangement d2 two matched paired ...

bearing fits 7.3.2 recommended fits bearing fit is governed by the selection tolerances for bearing shaft diameters and housing bore diameters widely used fits for 0 class tolerance bearings and various shaft and housing bore diameter tolerances are shown in table 7.1 generally-used standard fits for most types of bearings and operating conditions are shown in tables 7.2 7.7 table 7.2 fits for radial bearings table 7.3 fits for thrust bearings table 7.4 fits for electric motor bearings table 7.6 fits for inch series tapered roller bearings ansi class 4 table 7.7 fits for inch series tapered roller ...

angular contact ball bearings table 3 duplex angular contact ball bearings duplex type back-to-back duplex db face-to face duplex df tandem duplex dt types and characteristics characteristics ˇcan accommodate radial loads and axial loads in either direction ˇhas a large distancerbetween the acting load center of the bearing and therefore a large momentary force load capacity ˇallowable misalignment angle is small ˇcan accommodate radial loads and axial loads in either direction ˇhas a smaller distancerbetween the acting load center of the bearing and therefore a smaller momentary force load capacity ...

single and duplex arrangements brrb ra ra d da da rdra single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt 1 2 d 10 30mm boundary dimensions mm basic load ratings dynamic kn rs min 3 limiting speeds static rpm cor grease oil kgf static cor dynamic cr bearing numbers load center mm a mass kg single approx ddbb rls min 3 cr 10 26 30 30 35 35 28 32 32 37 37 32 35 35 42 42 35 40 40 47 47 42 47 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 22 26 26 ...

single and duplex arrangements equivalent bearing load dynamic 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 basic load ratings dynamic static dynamic static duplex duplex kn kgf cr cor cr cor limiting speeds duplex rpm grease oil 1 bearing numbers 2 abutment and fillet dimensions mm da max db df dt ...

single and duplex arrangements brrb ra ra d da da rdra single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt 1 2 d 30 55mm boundary dimensions mm basic load ratings dynamic kn rs min 3 limiting speeds static rpm cor grease oil kgf static cor dynamic cr bearing numbers load center mm a mass kg single approx ddbb rls min 3 cr 30 62 62 72 72 55 62 72 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 ...

single and duplex arrangements equivalent bearing load dynamic 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 basic load ratings dynamic static dynamic static duplex duplex kn kgf cr cor cr cor limiting speeds duplex rpm grease oil 1 bearing numbers 2 abutment and fillet dimensions mm da max db df dt ...

single and duplex arrangements brrb ra ra d da da rdra single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt 1 2 d 60 85mm boundary dimensions mm basic load ratings dynamic kn rs min 3 limiting speeds static rpm cor grease oil kgf static cor dynamic cr bearing numbers load center mm a mass kg single 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 ...

single and duplex arrangements equivalent bearing load dynamic 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 basic load ratings dynamic static dynamic static duplex duplex kn kgf cr cor cr cor limiting speeds duplex rpm grease oil 1 bearing numbers 2 abutment and fillet dimensions mm da max db df dt ...

single and duplex arrangements brrb ra ra d da da rdra single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt 1 2 d 85 120mm boundary dimensions mm basic load ratings dynamic kn rs min 3 limiting speeds static rpm cor grease oil kgf static cor dynamic cr bearing numbers load center mm a mass 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 36 36 49 49 20 28 38 38 50 50 22 82 ...

single and duplex arrangements equivalent bearing load dynamic 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 basic load ratings dynamic static dynamic static duplex duplex kn kgf cr cor cr cor limiting speeds duplex rpm grease oil 1 bearing numbers 2 abutment and fillet dimensions mm da max db df dt ...

single and duplex arrangements brrb ra rdrd da ra da a single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt 1 d 120 170mm boundary dimensions mm basic load ratings dynamic kn rs min 2 limiting speeds static rpm cor grease oil kgf static cor dynamic cr bearing numbers load center mm a mass kg single approx ddbb rls min 2 cr 120 180 215 215 260 260 180 200 230 230 280 280 190 210 250 250 300 300 210 225 270 270 320 320 220 240 290 290 340 340 230 260 310 310 360 28 40 40 55 55 24 33 40 40 58 58 24 33 42 42 62 62 28 35 45 45 65 65 28 38 48 48 68 68 28 42 52 52 ...

single and duplex arrangements equivalent bearing load dynamic 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 basic load ratings dynamic static dynamic static duplex duplex kn kgf cr cor cr cor limiting speeds duplex rpm grease oil bearing numbers 1 abutment and fillet dimensions mm db max db df dt da ...

single and duplex arrangements brrb ra rdrd da ra da a single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt 1 d 170 300mm boundary dimensions mm basic load ratings dynamic kn rs min 2 limiting speeds static rpm cor grease oil kgf static cor dynamic cr bearing numbers load center mm a mass kg single approx ddbb rls min 2 cr 170 360 250 280 320 320 380 380 260 290 340 340 400 400 280 310 360 360 420 420 300 320 360 380 420 72 33 46 52 52 75 75 33 46 55 55 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 ...

single and duplex arrangements equivalent bearing load dynamic 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 basic load ratings dynamic static dynamic static duplex duplex kn kgf cr cor cr cor limiting speeds duplex rpm grease oil bearing numbers 1 abutment and fillet dimensions mm db max db df dt da ...

high speed single and duplex arrangements brrrd da b ra ra da r d a single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt d 10 40mm boundary dimensions mm basic load ratings dynamic kn rs min 2 limiting speeds static rpm cor grease oil kgf 1 static cor dynamic cr bearing numbers load center mm a mass kg single approx ddbb rls min 2 cr 10 12 15 26 30 28 32 32 35 42 35 40 47 42 47 52 37 42 47 52 62 42 47 55 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 ...

high speed single and duplex arrangements r1a ra equivalent bearing load dynamic pr xfr yfa fa ra db da 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 0.41 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 ...

high speed single and duplex arrangements brrrd da b ra ra da r d a single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt d 40 75mm boundary dimensions mm basic load ratings dynamic kn rs min 2 limiting speeds static rpm cor grease oil kgf 1 static cor dynamic cr bearing numbers load center mm a mass kg single approx 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 ...

high speed single and duplex arrangements r1a ra equivalent bearing load dynamic pr xfr yfa fa ra db da 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 0.41 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 ...

high speed single and duplex arrangements brrrd da b ra ra da r d a single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt d 75 105mm boundary dimensions mm basic load ratings dynamic kn rs min 2 limiting speeds static rpm cor grease oil kgf 1 static cor dynamic cr bearing numbers load center mm a mass 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 ...

high speed single and duplex arrangements r1a ra equivalent bearing load dynamic pr xfr yfa fa ra db da 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 0.41 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 ...

high speed single and duplex arrangements brrrd da b ra ra da r d a single a back-to-back arrangement db a face-to-face arrangement df a tandem arrangement dt d 110 200mm boundary dimensions mm basic load ratings dynamic kn rs min 2 limiting speeds static rpm cor grease oil kgf 1 static cor dynamic cr bearing numbers load center mm a 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 ...

high speed single and duplex arrangements r1a ra equivalent bearing load dynamic pr xfr yfa fa ra db da 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 0.41 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 ...