Catalog: Precision Rolling Bearings | |
| technical data 3 bearings and rigidity the rigidity of the main spindle of a machine tool is associated with both bearing rigidity and shaft rigidity bearing rigidity is typically governed by the elastic deformation between the rolling elements and raceway surface under load usually bearings are preloaded in order to increase the rigidity under same loading conditions a roller bearing has a higher rigidity than a ball bearing of the same size however having sliding portions a roller bearing is disadvantageous in supporting a high-speed shaft shaft rigidity is greater with a larger shaft diameter ... | |
| applicable product groups/ultage steel balls/ceramic balls 15° 25° 79 llb/5s-79 llb ... | |
| technical data table 6.1 fitting conditions and calculation formulas fitting surface pressure fits between solid steel shaft and inner ring p e 2 deff symbol unit n [kg mm d shaft diameter inner ring bore diameter do hollow shaft bore diameter di :inner ring average raceway groove diameter deff effective interference e modulus of longitudinal elasticity 210 gpa d 1 d di 2 6.2 fits between hollow steel shaft and inner ring p e 2 deff 1 do di 1 2 1 do d 2 2 d mpa kgf mm2 do di 6.3 d deff d 2 d 6.4 in the case of a ground shaft d theoretical interference fitting di 1.05 4d d 5 b d0 2 mounting ... | |
| technical data adoption of ceramic balls a comparison of temperature increase ... design 20 10 0 0 5000 10000 steel balls ceramic balls 15000 shaft speed min-1 0 ... bearings employ well-proven ceramic balls to efficiently limit temperature ... | |
| the contact points between the balls and inner and outer rings forms an ... bearing is available with either steel balls or ceramic balls fig 9 1 contact angle ... some models incorporate ceramic balls hse0 c hse9 c fig 9.3 high-speed ... ceramic ball bearing employs smaller balls than the hse0c type to ensure rigidity ... | |
| they are available with either steel balls or ceramic balls hsl type hsfl type fig ... it is available with either steel balls or ceramic balls high-speed angular ... bearing is available with either steel balls or ceramic balls bnt2 bnt0 bnt9 fig 9.6 ... | |
| ntn main spindle bearings 2 standard cage design table 9.1 standard cages of angular contact ball bearings for radial loads bearing series 78c 79u 15° 25° 30° 79c 70u 15° 25° 30° 70c 72c hse9 15° 20° 25° hse0 15° 20° 25° hsf hsl9 15° 20° 25° hsl0 15° 20° 25° hsfl0 79 llb 15° 25° 70 llb 15° 25° bns9 15° 20° 25° bns0 15° 20° 25° bnt9 bnt0 bnt2 7900 llb 7000 llb 7909 llb 7009 llb bns910 bns010 bnt900 bnt000 bnt200 bns920 bns020 bnt909 bnt009 bnt209 7900u 7000u 7200c 7926u 7026u 7220c 7221c hse910 hse010 hsf010 hsl910 hsl010 hsfl010 7228c hse934 hse034 hsf020 hsl934 hsl034 hsfl020 molded nylon cage ... | |
| contact ball bearings with ceramic balls recently the main spindles of machining ... contact ball bearings with ceramic balls are described below limited temperature ... 70 type for this reason use of ceramic balls greatly reduces the influence of ... properties between ceramic and steel balls item density g/cm3 young s modulus gpa ... rise between bearings with ceramic balls and those with steel balls 70 ... | |
| operating life of bearings with ceramic balls accumulative probability of failure ... lubrication hatched area with steel balls with ceramic balls 99 80 50 20 10 5 ... life of ball bearing with ceramic balls bearing friction torque n mm 70 steel ... | |
| available with either steel or ceramic balls 4 three contact angles 15° 20° and 30° ... | |
| available with either steel or ceramic balls 4 three contact angles 15° 20° and 25° ... | |
| available with either steel or ceramic balls hsfl is available with ceramic balls ... | |
| available with either steel or ceramic balls fig 9.33 79llb and 70llb types ... | |
| available with either steel or ceramic balls 4 adoption of grease pockets special ... | |
| main spindle bearings !9 dimension tables for angular contact ball bearings standard angular contact ball bearings steel ball type 78 series contact angle 15° d 25 170mm brrdd1 r1 r d d1 d2 a part number boundary dimensions mm d d 37 42 47 52 58 65 72 78 85 90 95 100 110 115 120 125 130 140 150 165 175 190 200 215 b 7 7 7 7 7 7 9 10 10 10 10 10 13 13 13 13 13 16 16 18 18 20 20 22 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 basic load ratings ... | |
| main spindle bearings standard angular contact ball bearings steel ball type 79 series contact angle 15° d 10 170mm brrdd1 d2 r1 r b r1 r d d1 d2 d r d1 r d d1 d2 a d part number boundary dimensions mm d 7900uc 7901uc 7902uc 7903uc 7904uc 7905uc 7906uc 7907uc 7908uc 7909uc 7910uc 7911uc 7912uc 7913uc 7914uc 7915uc 7916uc 7917uc 7918uc 7919uc 7920uc 7921uc 7922uc 7924uc 7926uc 7928ct1b 7930ct1b 7932ct1b 7934ct1b 10 12 15 17 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 120 130 140 150 160 170 d 22 24 28 30 37 42 47 55 62 68 72 80 85 90 100 105 110 120 125 130 140 145 150 165 180 190 ... | |
| main spindle bearings standard angular contact ball bearings steel ball type 79 series contact angle 25° d 10 130mm b r1 rrdd1 d2 r d d1 d2 a part number boundary dimensions mm d d 22 24 28 30 37 42 47 55 62 68 72 80 85 90 100 105 110 120 125 130 140 145 150 165 180 b 6 6 7 7 9 9 9 10 12 12 12 13 13 13 16 16 16 18 18 18 20 20 20 22 24 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 basic load ratings dynamic static dynamic static kn kgf ... | |
| main spindle bearings standard angular contact ball bearings steel ball type 79 series contact angle 30° d 10 170mm brrdd1 d2 r1 r b r1 r d d1 d2 d r d1 r d d1 d2 a d part number boundary dimensions mm d 7900u 7901u 7902u 7903u 7904u 7905u 7906u 7907u 7908u 7909u 7910u 7911u 7912u 7913u 7914u 7915u 7916u 7917u 7918u 7919u 7920u 7921u 7922u 7924u 7926u 10 12 15 17 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 120 130 d 22 24 28 30 37 42 47 55 62 68 72 80 85 90 100 105 110 120 125 130 140 145 150 165 180 b 6 6 7 7 9 9 9 10 12 12 12 13 13 13 16 16 16 18 18 18 20 20 20 22 24 rs min1 r1s ... | |
| main spindle bearings standard angular contact ball bearings steel ball type 70 series contact angle 15° d 10 200mm brrdd1 d2 r1 r b r1 r d d1 d2 d r d1 r d d1 d2 a d part number boundary dimensions mm d 7000uc 7001uc 7002uc 7003uc 7004uc 7005uc 7006uc 7007uc 7008uc 7009uc 7010uc 7011uc 7012uc 7013uc 7014uc 7015uc 7016uc 7017uc 7018uc 7019uc 7020uc 7021uc 7022uc 7024uc 7026uc 7028ct1b 7030ct1b 7032ct1b 7034ct1b 7036ct1b 7038ct1b 7040ct1b 10 12 15 17 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 120 130 140 150 160 170 180 190 200 d 26 28 32 35 42 47 55 62 68 75 80 90 95 100 110 115 ... | |
| main spindle bearings standard angular contact ball bearings steel ball type 70 series contact angle 25° d 10 130mm b r1 rrdd1 d2 r d d1 d2 a part number boundary dimensions mm d d 26 28 32 35 42 47 55 62 68 75 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 b 8 8 9 10 12 12 13 14 15 16 16 18 18 18 20 20 22 22 24 24 24 26 28 28 33 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.6 0.6 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 0.15 0.15 0.15 0.15 0.3 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 5.15 5.60 6.35 ... | |
| main spindle bearings standard angular contact ball bearings steel ball type 70 series contact angle 30° d 10 130mm b r1 rrdd1 d2 r d d1 d2 a part number boundary dimensions mm d d 26 28 32 35 42 47 55 62 68 75 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 b 8 8 9 10 12 12 13 14 15 16 16 18 18 18 20 20 22 22 24 24 24 26 28 28 33 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.6 0.6 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 0.15 0.15 0.15 0.15 0.3 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 5.00 5.45 6.15 ... | |
| main spindle bearings standard angular contact ball bearings steel ball type 72 series contact angle 15° d 10 130mm brrdd1 r1 r d d1 d2 a part number boundary dimensions mm d d 30 32 35 40 47 52 62 72 80 85 90 100 110 120 125 130 140 150 160 170 180 190 200 215 230 b 9 10 11 12 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 32 34 36 38 40 40 rs min1 r1s min1 0.6 0.6 0.6 0.6 1 1 1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 1.5 1.5 2 2 2 2.1 2.1 2.1 2.1 2.1 3 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 basic load ratings dynamic static dynamic static kn kgf cr 5.40 7.10 9.00 ... | |
| main spindle bearings high-speed angular contact ball bearings steel ball type 2la-hse9 series contact angle 15° d 50 170mm b r r1 r1 r d d1 d2 d d1 d2 a part number boundary dimensions mm d d 72 80 85 90 100 105 110 120 125 130 140 145 150 165 180 190 210 220 230 b 12 13 13 13 16 16 16 18 18 18 20 20 20 22 24 24 28 28 28 rs min1 r1s min1 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 2 2 2 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 8.10 10.3 10.6 10.9 13.7 14.1 14.5 17.4 17.9 18.3 25.7 26.5 26.7 31.0 37.0 37.0 ... | |
| main spindle bearings high-speed angular contact ball bearings steel ball type 2la hse9 series contact angle 20° d 50 170mm b r r1 r1 r d d1 d2 d d1 d2 a part number boundary dimensions mm d d 72 80 85 90 100 105 110 120 125 130 140 145 150 165 180 190 210 220 230 b 12 13 13 13 16 16 16 18 18 18 20 20 20 22 24 24 28 28 28 rs min1 r1s min1 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 2 2 2 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 7.9 10.1 10.4 10.6 13.4 13.7 14.1 16.9 17.4 17.8 25.1 25.8 26.0 30.5 36.0 36.5 ... | |
| main spindle bearings high-speed angular contact ball bearings steel ball type 2la hse9 series contact angle 25° d 50 170mm b r r1 r1 r d d1 d2 d d1 d2 a part number boundary dimensions mm d d 72 80 85 90 100 105 110 120 125 130 140 145 150 165 180 190 210 220 230 b 12 13 13 13 16 16 16 18 18 18 20 20 20 22 24 24 28 28 28 rs min1 r1s min1 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 2 2 2 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 7.60 9.75 10.0 10.3 12.9 13.3 13.6 16.3 16.8 17.2 24.2 24.9 25.1 29.3 35.0 35.0 ... | |
| main spindle bearings high-speed angular contact ball bearings steel ball type 2la-hse0 series contact angle 15° d 50 170mm b r r1 r1 r d d1 d2 d d1 d2 a part number boundary dimensions mm d d 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 210 225 240 260 b 16 18 18 18 20 20 22 22 24 24 24 26 28 28 33 33 35 38 42 rs min1 r1s min1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 2 2.1 2.1 2.1 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1 1.1 1.1 1.1 basic load ratings dynamic static dynamic static kn kgf cr 15.9 17.3 18.1 18.4 22.5 23.9 27.4 27.7 32.0 32.5 33.5 38.5 48.0 48.0 69.0 71.5 ... | |
| main spindle bearings high-speed angular contact ball bearings steel ball type 2la-hse0 series contact angle 20° d 50 170mm b r r1 r1 r d d1 d2 d d1 d2 a part number boundary dimensions mm d d 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 210 225 240 260 b 16 18 18 18 20 20 22 22 24 24 24 26 28 28 33 33 35 38 42 rs min1 r1s min1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 2 2.1 2.1 2.1 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1 1.1 1.1 1.1 basic load ratings dynamic static dynamic static kn kgf cr 15.5 16.8 17.6 17.9 21.9 23.3 26.7 27.0 31.5 31.5 33.0 37.5 46.5 47.0 67.5 70.0 ... | |
| main spindle bearings high-speed angular contact ball bearings steel ball type 2la-hse0 series contact angle 25° d 50 170mm b r r1 r1 r d d1 d2 d d1 d2 a part number boundary dimensions mm d d 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 210 225 240 260 b 16 18 18 18 20 20 22 22 24 24 24 26 28 28 33 33 35 38 42 rs min1 r1s min1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 2 2.1 2.1 2.1 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1 1.1 1.1 1.1 basic load ratings dynamic static dynamic static kn kgf cr 15.0 16.3 17.1 17.3 21.2 22.5 25.8 26.1 30.5 30.5 31.5 36.5 45.0 45.5 65.0 67.5 ... | |
| main spindle bearings eco-friendly angular contact ball bearings steel ball type 2la-hsl9 series contact angle 15° d 50 130mm b r r1 r1 r d d1 d2 d a part number boundary dimensions mm d d 72 80 85 90 100 105 110 120 125 130 140 145 150 165 180 b 12 13 13 13 16 16 16 18 18 18 20 20 20 22 24 rs min1 r1s min1 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 basic load ratings dynamic static dynamic static kn kgf cr 8.10 10.3 10.6 10.9 13.7 14.1 14.5 17.4 17.9 18.3 25.7 26.5 26.7 31.0 37.0 cor 7.30 9.20 9.95 10.7 13.5 14.4 15.4 18.3 19.5 20.6 ... | |
| main spindle bearings eco-friendly angular contact ball bearings steel ball type 2la-hsl9 series contact angle 20° d 50 130mm b r r1 r1 r d d1 d2 d a part number boundary dimensions mm d d 72 80 85 90 100 105 110 120 125 130 140 145 150 165 180 b 12 13 13 13 16 16 16 18 18 18 20 20 20 22 24 rs min1 r1s min1 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 basic load ratings dynamic static dynamic static kn kgf cr 7.90 10.1 10.4 10.6 13.4 13.7 14.1 16.9 17.4 17.8 25.1 25.8 26.0 30.5 36.0 cor 7.10 9.00 9.70 10.4 13.1 14.1 15.0 17.8 19.0 20.1 ... | |
| main spindle bearings eco-friendly angular contact ball bearings steel ball type 2la-hsl9 series contact angle 25° d 50 130mm b r r1 r1 r d d1 d2 d a part number boundary dimensions mm d d 72 80 85 90 100 105 110 120 125 130 140 145 150 165 180 b 12 13 13 13 16 16 16 18 18 18 20 20 20 22 24 rs min1 r1s min1 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 basic load ratings dynamic static dynamic static kn kgf cr 7.60 9.75 10.0 10.3 12.9 13.3 13.6 16.3 16.8 17.2 24.2 24.9 25.1 29.3 35.0 cor 6.90 8.70 9.40 10.1 12.7 13.6 14.5 17.2 18.4 19.5 ... | |
| main spindle bearings eco-friendly angular contact ball bearings steel ball type 2la-hsl0 series contact angle 15° d 50 130mm b r r1 r1 r d d1 d2 d a part number boundary dimensions mm d d 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 b 16 18 18 18 20 20 22 22 24 24 24 26 28 28 33 rs min1 r1s min1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 15.9 17.3 18.1 18.4 22.5 23.9 27.4 27.7 32.0 32.5 33.5 38.5 48.0 48.0 69.0 cor 11.4 13.6 15.0 15.8 19.9 22.4 25.7 26.8 31.5 32.5 35.0 40.5 ... | |
| main spindle bearings eco-friendly angular contact ball bearings steel ball type 2la-hsl0 series contact angle 20° d 50 130mm b r r1 r1 r d d1 d2 d a part number boundary dimensions mm d d 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 b 16 18 18 18 20 20 22 22 24 24 24 26 28 28 33 rs min1 r1s min1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 15.5 16.8 17.6 17.9 21.9 23.3 26.7 27.0 31.5 31.5 33.0 37.5 46.5 47.0 67.5 cor 11.2 13.3 14.7 15.4 19.4 21.9 25.1 26.2 30.5 32.0 34.5 39.5 ... | |
| main spindle bearings eco-friendly angular contact ball bearings steel ball type 2la-hsl0 series contact angle 25° d 50 130mm b r r1 r1 r d d1 d2 d a part number boundary dimensions mm d d 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 b 16 18 18 18 20 20 22 22 24 24 24 26 28 28 33 rs min1 r1s min1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 15.0 16.3 17.1 17.3 21.2 22.5 25.8 26.1 30.5 30.5 31.5 36.5 45.0 45.5 65.0 cor 10.8 12.9 14.2 14.9 18.8 21.2 24.3 25.4 29.7 31.0 33.0 38.5 ... | |
| main spindle bearings sealed standard angular contact ball bearings steel ball type 79 llb series contact angle 15° d 10 50mm brrr1 r d d1 d d1 a part number boundary dimensions mm d d 22 24 28 30 37 42 47 55 62 68 72 b 6 6 7 7 9 9 9 10 12 12 12 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.3 0.3 0.3 0.3 basic load ratings dynamic static dynamic static kn kgf cr 3.00 3.35 5.05 5.25 7.30 8.15 8.60 11.8 17.6 18.6 15.9 cor 1.52 1.86 2.86 3.15 4.55 5.75 6.60 9.50 13.8 15.6 14.7 cr 305 340 515 535 745 835 880 1 200 1 790 1 890 1 620 cor 155 189 292 ... | |
| main spindle bearings sealed standard angular contact ball bearings steel ball type 79 llb series contact angle 25° d 10 50mm brrr1 r d d1 d d1 a part number boundary dimensions mm d d 22 24 28 30 37 42 47 55 62 68 72 b 6 6 7 7 9 9 9 10 12 12 12 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.3 0.3 0.3 0.3 basic load ratings dynamic static dynamic static kn kgf cr 2.88 3.20 4.80 5.00 6.95 7.75 8.15 11.1 16.7 17.6 15.0 cor 1.45 1.77 2.74 3.00 4.35 5.50 6.30 9.00 13.1 14.8 13.9 cr 294 325 490 510 710 790 830 1 130 1 700 1 790 1 530 cor 148 181 279 ... | |
| main spindle bearings sealed standard angular contact ball bearings steel ball type 70 llb series contact angle 15° d 10 50mm brrr1 r d d1 d d1 a part number boundary dimensions mm d d 26 28 32 35 42 47 55 62 68 75 80 b 8 8 9 10 12 12 13 14 15 16 16 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.6 0.6 1 1 1 1 1 0.15 0.15 0.15 0.15 0.3 0.3 0.6 0.6 0.6 0.6 0.6 basic load ratings dynamic static dynamic static kn kgf cr 5.30 5.80 6.25 8.25 10.5 12.3 15.1 19.1 20.6 27.7 28.6 cor 2.49 2.90 3.40 4.50 6.00 8.00 10.3 13.7 15.9 21.1 22.9 cr 540 590 635 840 1 070 1 250 1 540 1 950 2 100 2 820 2 910 cor 254 296 345 460 ... | |
| main spindle bearings sealed standard angular contact ball bearings steel ball type 70 llb series contact angle 25° d 10 50mm brrr1 r d d1 d d1 a part number boundary dimensions mm d d 26 28 32 35 42 47 55 62 68 75 80 b 8 8 9 10 12 12 13 14 15 16 16 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.6 0.6 1 1 1 1 1 0.15 0.15 0.15 0.15 0.3 0.3 0.6 0.6 0.6 0.6 0.6 basic load ratings dynamic static dynamic static kn kgf cr 5.15 5.60 5.95 7.90 10.0 11.7 14.4 18.2 19.5 26.3 27.1 cor 2.41 2.79 3.25 4.35 5.75 7.65 9.80 13.0 15.1 20.1 21.8 cr 525 570 610 805 1 020 1 190 1 470 1 850 1 990 2 680 2 760 cor 245 285 330 445 ... | |
| main spindle bearings sealed high-speed angular contact ball bearings steel ball type 2la-bns9 llb series contact angle 15° d 50 100mm b r r1 rrdd1 d d1 d 2 a part number boundary dimensions mm d d 72 80 85 90 100 105 110 120 125 130 140 b 12 13 13 13 16 16 16 18 18 18 20 rs min1 r1s min1 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 basic load ratings dynamic static dynamic static kn kgf cr 8.10 10.3 10.6 10.9 13.7 14.1 14.5 17.4 17.9 18.3 25.7 cor 7.30 9.20 10.0 10.7 13.5 14.4 15.4 18.3 19.5 20.6 28.0 cr 825 1 050 1 080 1 110 1 400 1 440 1 480 1 770 1 820 1 870 2 ... | |
| main spindle bearings sealed high-speed angular contact ball bearings steel ball type 2la-bns9 llb series contact angle 20° d 50 100mm b r r1 rrdd1 d d1 d 2 a part number boundary dimensions mm d d 72 80 85 90 100 105 110 120 125 130 140 b 12 13 13 13 16 16 16 18 18 18 20 rs min1 r1s min1 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 basic load ratings dynamic static dynamic static kn kgf cr 7.90 10.1 10.4 10.6 13.4 13.7 14.1 16.9 17.4 17.8 25.1 cor 7.10 9.00 9.70 10.4 13.1 14.1 15.0 17.8 19.0 20.1 27.3 cr 805 1 030 1 060 1 080 1 360 1 400 1 440 1 730 1 770 1 820 2 ... | |
| main spindle bearings sealed high-speed angular contact ball bearings steel ball type 2la-bns9 llb series contact angle 25° d 50 100mm b r r1 rrdd1 d d1 d 2 a part number boundary dimensions mm d d 72 80 85 90 100 105 110 120 125 130 140 b 12 13 13 13 16 16 16 18 18 18 20 rs min1 r1s min1 0.6 1 1 1 1 1 1 1.1 1.1 1.1 1.1 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 basic load ratings dynamic static dynamic static kn kgf cr 7.60 9.75 10.0 10.3 12.9 13.3 13.6 16.4 16.8 17.2 24.2 cor 6.90 8.70 9.40 10.1 12.7 13.6 14.5 17.2 18.4 19.5 26.4 cr 775 990 1 020 1 050 1 320 1 350 1 390 1 670 1 710 1 760 2 470 ... | |
| main spindle bearings sealed high-speed angular contact ball bearings steel ball type 2la-bns0 llb series contact angle 15° d 45 100mm b r r1 rrdd1 d d1 d 2 a part number boundary dimensions mm d d 75 80 90 95 100 110 115 125 130 140 145 150 b 16 16 18 18 18 20 20 22 22 24 24 24 rs min1 r1s min1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 11.8 14.7 17.3 18.1 18.4 22.4 23.9 27.4 27.7 32.0 32.5 33.5 cor 9.15 11.5 13.6 15.0 15.8 19.9 22.4 25.7 26.8 31.5 32.5 35.0 cr 1 210 1 500 1 760 1 850 1 870 2 ... | |
| main spindle bearings sealed high-speed angular contact ball bearings steel ball type 2la-bns0 llb series contact angle 20° d 45 100mm b r r1 rrdd1 d d1 d 2 a part number boundary dimensions mm d d 75 80 90 95 100 110 115 125 130 140 145 150 b 16 16 18 18 18 20 20 22 22 24 24 24 rs min1 r1s min1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 11.5 14.4 16.8 17.6 17.9 21.9 23.3 26.7 27.0 31.5 31.5 33.0 cor 8.95 11.2 13.3 14.7 15.4 19.4 21.9 25.1 26.2 30.5 32.0 34.5 cr 1 180 1 470 1 720 1 800 1 830 2 ... | |
| main spindle bearings sealed high-speed angular contact ball bearings steel ball type 2la-bns0 llb series contact angle 25° d 45 100mm b r r1 rrdd1 d d1 d 2 a part number boundary dimensions mm d d 75 80 90 95 100 110 115 125 130 140 145 150 b 16 16 18 18 18 20 20 22 22 24 24 24 rs min1 r1s min1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 11.2 13.9 16.3 17.1 17.3 21.2 22.5 25.8 26.1 30.5 30.5 32.0 cor 8.65 10.9 12.9 14.2 14.9 18.8 21.2 24.3 25.4 29.7 31.0 33.0 cr 1 140 1 420 1 660 1 740 1 770 2 ... | |
| main spindle bearings angular contact ball bearings for motors and lathes steel ball type bnt9 series contact angle 15° d 10 65mm b r r1 d d1 d2 rrdd1 a part number boundary dimensions mm d d 22 24 28 30 37 42 47 55 62 68 72 80 85 90 b 6 6 7 7 9 9 9 10 12 12 12 13 13 13 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 1 1 1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.3 0.3 0.3 0.3 0.6 0.6 0.6 basic load ratings dynamic static dynamic static kn kgf cr 2.30 2.57 3.70 3.90 5.60 6.00 6.35 10.1 10.7 13.2 14.0 14.6 15.3 15.5 cor 1.00 1.22 1.75 1.95 2.99 3.55 4.10 6.30 7.30 9.20 10.3 11.6 12.8 13.4 ... | |
| main spindle bearings angular contact ball bearings for motors and lathes steel ball type bnt0 series contact angle 15° d 10 70mm b r r1 d d1 d2 rrdd1 a part number boundary dimensions mm d d 26 28 32 35 42 47 55 62 68 75 80 90 95 100 110 b 8 8 9 10 12 12 13 14 15 16 16 18 18 18 20 rs min1 r1s min1 0.3 0.3 0.3 0.3 0.6 0.6 1 1 1 1 1 1.1 1.1 1.1 1.1 0.15 0.15 0.15 0.15 0.3 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 basic load ratings dynamic static dynamic static kn kgf cr 3.75 4.15 4.75 5.90 8.00 8.95 11.6 14.6 15.7 18.6 19.9 26.1 26.8 28.4 36.0 cor 1.45 1.73 2.22 2.70 3.95 4.85 6.75 8.95 10.4 12.6 ... | |
| main spindle bearings angular contact ball bearings for motors and lathes steel ball type bnt2 series contact angle 15° d 10 80mm b r r1 d d1 d2 rrdd1 a part number boundary dimensions mm d d 30 32 35 40 47 52 62 72 80 85 90 100 110 120 125 130 140 b 9 10 11 12 14 15 16 17 18 19 20 21 22 23 24 25 26 rs min1 r1s min1 0.6 0.6 0.6 0.6 1 1 1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 1.5 1.5 2 0.3 0.3 0.3 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 basic load ratings dynamic static dynamic static kn kgf cr 4.15 5.40 6.85 8.55 11.2 12.7 17.6 23.2 27.8 31.0 32.5 40.5 49.0 53.5 58.0 60.5 71.0 cor 1.71 2.28 2.97 3.80 ... | |
| ntn main spindle bearings 2 standard cage types table 11.2 standard cage of angular contact ball bearing for axial loads bearing series 5629 5620 hta9u a hta0u a hta920 hta934 hta007 hta034 machined phenol cage machined brass cage 562920 562964 562005 562064 hta936 hta964 hta036 hta064 notes cage types may be subjected to change without notice for details contact ntn engineering 3 bearing designations 562 0 20m gn p4 tolerance class code p5 ntn class 5 p4 ntn class 4 internal clearance code gn normal preload gm medium preload bore code refer to the dimensions tables without m tapered shaft small ... | |
| main spindle bearings angular contact ball bearings for axial loads steel ball type hta9ua series contact angle 30° d 100 320mm 2b r1 r r1 rddd1 d2 2a part number boundary dimensions mm d d 140 145 150 165 180 190 210 220 230 250 260 280 300 320 360 380 420 440 2b 36 36 36 rs min1 r1s min1 1.1 1.1 1.1 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 basic load ratings dynamic static dynamic static kn kgf ca 40.0 41.0 41.0 48.0 57.5 57.5 80.5 82.0 84.0 127 129 152 156 160 210 216 276 280 coa 109 115 118 140 173 177 243 255 268 400 420 500 535 570 745 795 1 020 1 060 ca 4 050 4 150 4 200 ... | |
| main spindle bearings angular contact ball bearings for axial loads steel ball type hta9u series contact angle 40° d 100 320mm 2b r1 r r1 rddd1 d2 2a part number boundary dimensions mm d d 140 145 150 165 180 190 210 220 230 250 260 280 300 320 360 380 420 440 2b 36 36 36 rs min1 r1s min1 1.1 1.1 1.1 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 basic load ratings dynamic static dynamic static kn kgf ca 47.0 48.5 49.0 57.0 68.0 68.0 95.5 97.5 99.5 150 153 180 185 190 250 257 325 330 coa 121 128 131 156 193 197 270 284 298 445 470 555 595 635 830 885 1 130 1 180 ca 4 800 4 950 5 000 ... | |
| main spindle bearings angular contact ball bearings for axial loads steel ball type hta0ua series contact angle 30° d 50 320mm 2b r1 r r1 rddd1 d2 2a part number boundary dimensions mm d d 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 210 225 240 260 280 290 310 340 360 400 420 460 480 2b 28.5 33 33 33 36 36 40.5 40.5 45 45 45 49.5 54 54 63 63 67.5 72 81 90 91 99 108 108 123 123 142.5 142.5 rs min1 r1s min1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 2 2.1 2.1 2.1 2.1 2.1 2.1 3 3 4 4 4 4 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 ... | |
| main spindle bearings angular contact ball bearings for axial loads steel ball type hta0u series contact angle 40° d 50 320mm 2b r1 r r1 rddd1 d2 2a part number boundary dimensions mm d d 80 90 95 100 110 115 125 130 140 145 150 160 170 180 200 210 225 240 260 280 290 310 340 360 400 420 460 480 2b 28.5 33 33 33 36 36 40.5 40.5 45 45 45 49.5 54 54 63 63 67.5 72 81 90 91 99 108 108 123 123 142.5 142.5 rs min1 r1s min1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 2 2 2 2 2 2.1 2.1 2.1 2.1 2.1 2.1 3 3 4 4 4 4 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 1 1 1 1 1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.5 1.5 1.5 ... | |
| ntn ball screw support bearings 2 fretting resistance test rolling resistance against fretting while rolling is tested in the rotating and oscillating type fretting corrosion test a conceptual drawing of the test is shown in fig 13.5 and the test conditions are shown in table 13-4 in this test a housing plate is fixed and the shaft plate oscillates the decrease in the weight of the bearing plate after the test is shown in fig 13.6 due to the combination of a unique heat treatment and a special grease light-contact seal type the amount of wear is reduced to 1/10 or less compared to the conventional ... | |
| 158 152 brinell hardness standard steel balls tungsten carbide steel balls rockwell ... | |
