Inner Rings
Inner Rings Inner Rings Inner Rings Many of the neele roller bearings use a shaft as the irect raceway surface without using inner ring. However, it is recommene to use any of the inner rings escribe hereuner, together with neele roller bearing, where applicable shaft can not be surface-harene an surface-finishe by grining. Any inner rings are mae of high carbon chrome bearing steel an finishe by grining after heat-treate. It is esirable to use an inner ring of wie with, where the axial isplacement of a shaft is great an also a seal is use at the outer sie of bearing. Types an Designs inner rings are available in both of IR type with bounary imensions of metric system an MI type with bounary imensions of inch system. Both eges of inner ring raceway are chamfere to form gentle tapers in orer to facilitate fitting of the inner ring. In contrast, inner rings whose inner ring number is heae by an asterisk (*) are provie with slight-chamfering so that they will offer a greater axial travel. In aition to these inner rings, manufacture of special inner ring type (suffix D) with oil hole on its center is also available. For applications that nee particularly high running accuracy, certain bearing users install the inner ring onto the shaft an then grin the raceway surface to targete accuracy. To fulfill this type of request, will supply a special inner ring whose raceway surface inclues a grining allowance. For etails, contact Engineering. Dimensional accuracy for inner ring The imensional accuracy (bore iameter "", with "B" an chamfer imension "rs min"), profile accuracy an running accuracy of the inner rings are as shown in Tables 4.3 an 4.5 of Section 4 "Bearing accuracy" (page A-26). An the stanar accuracy class of these items conforms to JIS Class-, but other inner rings conforming to JIS Class-5 an -4 are also offerable on request. Each inner ring has been finishe to the imensional tolerance of its raceway iameter (F) in the relevant imension table so that when the inner ring is combine with a neele roller bearing, the resultant raial internal clearance falls in a range of orinary clearance (refer to Table 5.1 in Sec. 5.2 Running clearance.) Composition of inner ring number Inner ring number consists of type coe (IR or MI)), imension coe [bore ia. () raceway ia. (F) with (B)] an a suffix. Note that the imensions of Type MI (inch series) inner rings measure in 1/16 increments. IR 2 25 18 D Suffix Dimension coe Fig. 1 Type coe B-128
Type IR 5 1mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 7 1.15 1 IR 5 7 1 6.2.15.14 5 8.6 12.3 1 IR 5 8 12 7.3.28 8 16.3 IR 5 8 16 7.3.38 6 8 1.15 1 IR 6 8 1 7.2.15.17 9 12.3 1 IR 6 9 12 8.3.32 9 16.3 1 IR 6 9 16 8.3.43 1.6 1.3 1 IR 6 1 1 8.3.37 1 12.3 IR 6 1 12D 8.3.46 1 13.3 1 IR 6 1 13 8.3.5 9 1.15 1 IR 7 9 1 8.2.15.19 1 1.5.3 1 IR 7 1 1.5 9.3.31 7 1.6 12.3 1 IR 7 1 12 9.3.36 1 16.3 1 IR 7 1 16 9.3.49 12.8 16.3 1 IR 7 12 16 9.3.93 1.6 11.15 1 IR 8 1 11 9.2.15.24 12 1.3 1 IR 8 12 1 1.3.48 8 12 1.5.3 1 IR 8 12 1.5 1.3.5 12.8 12.3 IR 8 12 12D 1.3.57 12 12.5.3 1 IR 8 12 12.5 1.3.59 14 16.3 1 IR 8 14 16 1.3.13 9 12 11.3 1 IR 9 12 11 11.3.41 12 12.3 1 IR 9 12 12 11.3.45 12.8 16.3 1 IR 9 12 16 11.3.61 15 16.3 1 IR 9 15 16 11.3.14 1 13 12.5.3 1 IR1 13 12.5 12.3.52 14 12.3 1 IR1 14 12 12.3.73 14 13.3 1 IR1 14 13 12.3.74 14.8 14.3 IR1 14 14D 12.3.8 14 16.3 IR1 14 16 12.3.92 14 2.3 1 IR1 14 2 12.3.12 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. Remarks: 1. Nominal number plus coe "D" represents inner ring with oil hole. 2. Nominal number plus -mark represents inner ring with fine-chamfere outer surface. B-129
Type IR 1 15mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 15 15.5.3 1 IR1 15 15.5 12.3.12 1 15.8 2.5.3 1 IR1 15 2.5 12.3.15 16 16.3 1 IR1 16 16 12.3.15 12 15 12.3 1 IR12 15 12 14.3.58 15 12.5.3 1 IR12 15 12.5 14.3.61 15 16.3 1 IR12 15 16 14.3.78 15 16.5.3 IR12 15 16.5 14.3.8 15 22.5.3 IR12 15 22.5 14.3.11 16 12.3 1.5 IR12 16 12 14.3.79 16 13.3 1.5 IR12 16 13 14.3.87 16.8 14.3 IR12 16 14D 14.3.95 16 16.3 1.5 IR12 16 16 14.3.11 16 2.3 1.5 IR12 16 2 14.3.14 16 22.3 1.5 IR12 16 22 14.3.15 17 2.5.3 1.5 IR12 17 2.5 14.3.19 17 25.5.3 1.5 IR12 17 25.5 14.3.24 18 16.3 1.5 IR12 18 16 14.3.18 14 17.8 17.3 1.5 IR14 17 17 16.3.95 18 12.5.3 1.5 IR15 18 12.5 17.3.72 18 16.3 1.5 IR15 18 16 17.3.93 18 16.5.3 1.5 IR15 18 16.5 17.3.96 18.8 17.5.3 1.5 IR15 18 17.5 17.3.1 18 2.5.3 1.5 IR15 18 2.5 17.3.12 18 25.5.3 1.5 IR15 18 25.5 17.3.15 15 19 16.3 1.5 IR15 19 16 17.3.13 19 2.3 1.5 IR15 19 2 17.3.16 2 12.3 1.5 IR15 2 12 17.3.12 2.9 13.3 1.5 IR15 2 13 17.3.14 2 14.3 IR15 2 14D 17.3.15 2 18.3 1.5 IR15 2 18 17.3.19 2 2.5.3 1.5 IR15 2 2.5 17.3.21 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. Remarks: 1. Nominal number plus coe "D" represents inner ring with oil hole. 2. Nominal number plus -mark represents inner ring with fine-chamfere outer surface. B-13
15 2mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 15 17 2 23.3 IR15 2 23 17.3.24 2 26.3 1.5 IR15 2 26 17.3.27 2.9 3.5.3 1.5 IR15 2 3.5 17.3.32 22 2.6 1.5 IR15 22 2 19.6.32 2 16.3 1.5 IR17 2 16 19.3.11 2 16.5.3 1.5 IR17 2 16.5 19.3.11 2 2.3 1.5 IR17 2 2 19.3.14 2 2.5.3 IR17 2 2.5 19.3.14 2 3.5.3 IR17 2 3.5 19.3.21 21 16.3 1.5 IR17 21 16 19.3.14 21 2.3 IR17 21 2 19.3.18 22 13.3 1.5 IR17 22 13 19.3.15.9 22 14.3 IR17 22 14D 19.3.16 22 16.3 IR17 22 16 19.3.19 22 18.3 1.5 IR17 22 18 19.3.21 22 2.5.3 1.5 IR17 22 2.5 19.3.24 22 23.3 IR17 22 23 19.3.27 22 26.3 1.5 IR17 22 26 19.3.3 22 32.3 1.5 IR17 22 32 19.3.36 24 2.6 1.5 IR17 24 2 21.6.34 24 16.3 1.8 IR2 24 16 22.3.17 24 2.3 IR2 24 2 22.3.21 24 28.5.3 IR2 24 28.5 22.3.3 25 12.5.3 1.8 IR2 25 12.5 22.3.16 25 16.3 IR2 25 16 22.3.21 2 25.9 16.5.3 1.8 IR2 25 16.5 22.3.22 25 17.3 1.8 IR2 25 17 22.3.22 25 18.3 IR2 25 18D 22.3.24 25 2.3 IR2 25 2 22.3.27 25 2.5.3 1.8 IR2 25 2.5 22.3.28 25 23.3 1.8 IR2 25 23 22.3.31 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. Remarks: 1. Nominal number plus coe "D" represents inner ring with oil hole. 2. Nominal number plus -mark represents inner ring with fine-chamfere outer surface. B-131
Type IR 2 28mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 2 25 26.3 1.8 IR2 25 26 22.3.34 25 26.5.3 IR2 25 26.5 22.3.36 25 3.3 1.8 IR2 25 3 22.3.41 25.9 32.3 1.8 IR2 25 32 22.3.41 25 38.5.3 IR2 25 38.5 22.3.53 28 2.6 1.8 IR2 28 2 24.6.45 26 16.3 1.8 IR22 26 16 24.3.17 26 2.3 IR22 26 2 24.3.22 28 17.3 1.8 IR22 28 17 24.3.3 22 28.9 2.3 1.8 IR22 28 2 24.3.35 28 2.5.3 1.8 IR22 28 2.5 24.3.36 28 23.3 1.8 IR22 28 23 24.3.42 28 3.3 IR22 28 3 24.3.54 29 2.3 IR25 29 2 27.3.26 29 3.3 1.8 IR25 29 3 27.3.39 3 12.5.3 1.8 IR25 3 12.5 27.3.2 3 16.3 1 IR25 3 16 27.3.24 3 16.5.3 1.8 IR25 3 16.5 27.3.26 3 17.3 1.8 IR25 3 17 27.3.27 3 18.3 IR25 3 18 27.3.3 3.9 2.3 1.8 IR25 3 2 27.3.33 25 3 2.5.3 1.8 IR25 3 2.5 27.3.34 3 23.3 1.8 IR25 3 23 27.3.38 3 26.3 1.8 IR25 3 26 27.3.41 3 26.5.3 IR25 3 26.5 27.3.43 3 3.3 1.8 IR25 3 3 27.3.5 3 32.3 1 IR25 3 32 27.3.54 3 38.5.3 IR25 3 38.5 27.3.64 32 +.8 22.6 1.8 IR25 32 22 29.6.52 32.2 3.5.6 1.8 IR25 32 3.5 29.6.72.8 28 32.2 17.3 1.8 IR28 32 17 3.3.25 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. Remarks: 1. Nominal number plus -mark represents inner ring with fine-chamfere outer surface. B-132
28 35mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 32 2.3 1.8 IR28 32 2 3.3.28 28 32 +.8.2 23.3 1.8 IR28 32 23 3.3.34 32 3.3 IR28 32 3 3.3.44 +.8 29 32.2 13.3 1.8 IR29 32 13 31.3.15 35 12.5.3 1.8 IR3 35 12.5 32.3.24 35 13.3 1.3 IR3 35 13 32.3.25 35 16.3 IR3 35 16 32.3.31 35 16.5.3 1.8 IR3 35 16.5 32.3.32 35 17.3 1.8 IR3 35 17 32.3.32 35 18.3 IR3 35 18D 32.3.35 35 2.3 IR3 35 2 32.3.38 3 35 +.8.2 2.5.3 1.8 IR3 35 2.5 32.3.39 35 23.3 1.8 IR3 35 23 32.3.44 32 35 26.3 1.8 IR3 35 26 32.3.5 35 3.3 IR3 35 3 32.3.59 35 32.3 1.8 IR3 35 32 32.3.63 37 18.3 1.8 IR3 37 18 32.3.5 37 22.6 1.8 IR3 37 22 34.6.61 38 2.6 IR3 38 2 34.6.65 37 2.3 2 IR32 37 2 34.3.4 37 3.3 IR32 37 3 34.3.63 38 32.3 2 IR32 38 32 34.3.82 4.11 2.6 2 IR32 4 2 36.6.68 4 27.6 2 IR32 4 27 36.6.92 4 36.6 2 IR32 4 36 36.6.124 33 37.11 13.3 2 IR33 37 13 35.3.22 35 4 12.5.3 2 IR35 4 12.5 37.3.27 4 16.5.3 2 IR35 4 16.5 37.3.37 4.11 17.3 2 IR35 4 17 37.3.38 4 2.3 2 IR35 4 2 37.3.44 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. Remarks: 1. Nominal number plus coe "D" represents inner ring with oil hole. 2. Nominal number plus -mark represents inner ring with fine-chamfere outer surface. B-133
Type IR 35 45mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 35 38 4 42 45 4 2.5.3 2 IR35 4 2.5 37.3.46 4 3.3 IR35 4 3 37.3.68 4 34.3 1.8 IR35 4 34 37.3.79 4 4.3 2 IR35 4 4 37.3.91 42 2.6 1.8 IR35 42 2 39.6.64 42.11 21.6 IR35 42 21 39.6.68 42 23.6 IR35 42 23D 39.6.74 42 27.6 2 IR35 42 27 39.6.8 42 36.6 2 IR35 42 36 39.6.117 43 22.6 2 IR35 43 22 39.6.81 43 2.3 1.8 IR38 43 2 4.3.48 43.11 3.3 IR38 43 3 4.3.74 45 16.5.3 2 IR4 45 16.5 42.3.42 45 17.3 2 IR4 45 17 42.3.43 45 2.3 2 IR4 45 2 42.3.51 45 2.5.3 2 IR4 45 2.5 42.3.53 45 26.5.3 IR4 45 26.5 42.3.68 45 3.3 2 IR4 45 3 42.3.77 45 34.3 2 IR4 45 34 42.3.88 45.11 4.3 2 IR4 45 4 42.3.16 48 22.6 2 IR4 48 22 44.6.92 48 23.6 IR4 48 23 44.6.97 48 3.6 2 IR4 48 3 44.6.123 48 4.6 2 IR4 48 4 44.6.17 5 2.3.8 IR4 5 2 44.3.16 5 22 1 2 IR4 5 22 45 1.118 47 2.3 2 IR42 47 2 44.3.53 47.11 3.3 2 IR42 47 3 44.3.8 5 2.3 2 IR45 5 2 47.3.57 5.11 25.6 2 IR45 5 25 49.6.71 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. Remarks: 1. Nominal number plus coe "D" represents inner ring with oil hole. 2. Nominal number plus -mark represents inner ring with fine-chamfere outer surface. B-134
45 55mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 5 25.5.3 IR45 5 25.5 47.3.74 5 32.6 IR45 5 32 49.6.92 5.11 35.6 2 IR45 5 35 49.6.11 5 4.3 1.5 IR45 5 4 47.3.115 52 22.6 2 IR45 52 22 49.6.88 45 52 23.6 IR45 52 23D 49.6.93 52 3.6 2 IR45 52 3 49.6.123 52 +.8.4 4.6 2 IR45 52 4 49.6.164 55 2.6 2 IR45 55 2 49.6.116 55 22 1 2 IR45 55 22 5 1.13 55 4.6 2 IR45 55 4 49.6.173 5 55 55 2.6 2 IR5 55 2 54.6.63 55 25.6 2 IR5 55 25 54.6.78 55 35.6 2 IR5 55 35 54.6.112 55 4.6 2 IR5 55 4 54.6.128 58 22.6 2 IR5 58 22 54.6.113 58 +.8 23.6 IR5 58 23D 54.6.119 58.4 3.6 2 IR5 58 3 54.6.159 58 4.6 2 IR5 58 4 54.6.29 6 2 1 2 IR5 6 2 55 1.129 6 25 1 2 IR5 6 25 55 1.163 6 28 1.1 2 IR5 6 28 56.5 1.183 6 4 1 2 IR5 6 4 55 1.262 6 25.6 2.2 IR55 6 25 59.6.86 6 35.6 2 IR55 6 35 59.6.121 63 25 1 2 IR55 63 25 6 1.141 63 34 1 2.2 IR55 63 34 6 1.192 63.13 45 1 2.2 IR55 63 45 6 1.256 65 28 1.1 2.2 IR55 65 28 61.5 1.26 65 3 1 2.2 IR55 65 3 6 1.22 65 6 1 1.5 IR55 65 6 6 1.44 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. Remarks: 1. Nominal number plus coe "D" represents inner ring with oil hole. 2. Nominal number plus -mark represents inner ring with fine-chamfere outer surface. B-135
Type IR 6 75mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 6 65 7 75 68 25 1 2.2 IR6 68 25 65 1.152 68 34 1 2.2 IR6 68 34 65 1.26 68 35.6 2.2 IR6 68 35 64.6.213 68 45 1 2.2 IR6 68 45 65 1.27.13 7 25 1 2.2 IR6 7 25 65 1.195 7 28 1.1 2.2 IR6 7 28 66.5 1.216 7 3 1 2.2 IR6 7 3 65 1.232 7 6 1 2.2 IR6 7 6 65 1.463 72 25 1 2.2 IR65 72 25 7 1.142 72 34 1 2.2 IR65 72 34 7 1.193 72 45 1 2.2 IR65 72 45 7 1.259 73 25.6 2.2 IR65 73 25 69.6.164 73.13 35.6 2.2 IR65 73 35 69.6.232 75 28 1.1 2.2 IR65 75 28 71.5 1.24 75 3 1 2.2 IR65 75 3 7 1.256 75 6 1 2.2 IR65 75 6 7 1.513 8 25 1 2.2 IR7 8 25 75 1.224 8 28 1.1 2.2 IR7 8 28 76.5 1.25 8 3 1 2.2 IR7 8 3 75 1.267 8 35 1 2.2 IR7 8 35 75 1.313 8.13 4 1 2.2 IR7 8 4 75 1.358 8 54 1 2.2 IR7 8 54 75 1.483 8 56 1 2.2 IR7 8 56 75 1.52 8 6 1 2.2 IR7 8 6 75 1.54 85 25 1 2.2 IR75 85 25 8 1.238 85 3 1 2.2 IR75 85 3 8 1.287 85 35 1 2.2 IR75 85 35 8 1.336 85.15 4 1 2.2 IR75 85 4 8 1.385 85 54 1 2.2 IR75 85 54 8 1.515 9 32 1.1 2.2 IR75 9 32 81.5 1.48 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. B-136
8 1mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 8 9 25 1 2.2 IR 8 9 25 85 1.254 9 3 1 2.2 IR 8 9 3 85 1.34 9 35 1 2.2 IR 8 9 35 85 1.355 9.15 4 1 2.2 IR 8 9 4 85 1.48 9 54 1 2.2 IR 8 9 54 85 1.543 95 32 1.1 2.2 IR 8 95 32 86.5 1.51 95 26 1 2.5 IR 85 95 26 9 1.28 95 3 1 2.5 IR 85 95 3 9 1.323 95 36 1 2.5 IR 85 95 36 9 1.398 85 1.15 32 1.1 2.5 IR 85 1 32 91.5 1.53 1 35 1.1 2.5 IR 85 1 35 91.5 1.58 1 46 1.1 2.5 IR 85 1 46 91.5 1.76 1 63 1.1 2.5 IR 85 1 63 91.5 1 1.5 1 26 1 2.5 IR 9 1 26 95 1.294 1 3 1 2.5 IR 9 1 3 95 1.34 1 36 1 2.5 IR 9 1 36 95 1.46 9 15.15 32 1.1 2.5 IR 9 15 32 96.5 1.56 15 35 1.1 2.5 IR 9 15 35 96.5 1.61 15 46 1.1 2.5 IR 9 15 46 96.5 1.8 15 63 1.1 2.5 IR 9 15 63 96.5 1 1.11 95 1 15 26 1 2.5 IR 95 15 26 1 1.313 15 36 1 2.5 IR 95 15 36 1 1.43 11 32 1.1 2.5 IR 95 11 32 11.5 1.59 11.15 35 1.1 2.5 IR 95 11 35 11.5 1.64 11 46 1.1 2.5 IR 95 11 46 11.5 1.85 11 63 1.1 2.5 IR 95 11 63 11.5 1 1.17 11 3 1.1 2.5 IR1 11 3 16.5 1.375 11 4 1.1 2.5 IR1 11 4 16.5 1.55 115.15 32 1.1 2.5 IR1 115 32 16.5 1.62 115 4 1.1 2.5 IR1 115 4 16.5 1.775 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. B-137
Type IR 1 16mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 1 115.15 54 1.1 2.5 IR1 115 54 16.5 1 1.9 11 12 3 1 2.5 IR11 12 3 115 1.44 12.15 4 1.1 2.5 IR11 12 4 116.5 1.58 125 4 1.1 2.5 IR11 125 4 116.5 1.84 125.18 54 1.1 2.5 IR11 125 54 116.5 1 1.16 13 3 1 2.2 IR12 13 3 125 1.44 13 4 1.1 2.5 IR12 13 4 126.5 1.59 12 135.18 4 2 2.5 IR12 135 4 129 2.87 135 45 1.1 2.5 IR12 135 45 126.5 1.98 135 6 1.1 2.5 IR12 135 6 126.5 1 1.25 13 14 145 32 1.5 3 IR13 145 32 138 1.5.78 145 35 1.1 3 IR13 145 35 136.5 1.855 145 42 1.5 3 IR13 145 42 138 1.5 1.5 15.18 5 1.5 3 IR13 15 5 138 1.5 1.69 15 52 2 3 IR13 15 52 139 2 1.75 15 67 1.5 3 IR13 15 67 138 1.5 2.25 155 32 1.5 3 IR14 155 32 148 1.5.84 155 35 1.1 3 IR14 155 35 146.5 1.917 155 42 1.5 3 IR14 155 42 148 1.5 1.1 16.18 5 1.5 3 IR14 16 5 148 1.5 1.7 16 52 2 3 IR14 16 52 149 2 1.78 16 67 1.5 3 IR14 16 67 148 1.5 2.3 165 32 1.5 3 IR15 165 32 158 1.5.9 165 4 1.1 3 IR15 165 4 156.5 1 1.12 15 165.17.35 42 1.5 3 IR15 165 42 158 1.5 1.18 17 52 2 3 IR15 17 52 159 2 2. 17 6 2 3 IR15 17 6 159 2 2.35 16 175.17 4 1.1 3 IR16 175 4 166.5 1 1.2 18.35 6 2 3 IR16 18 6 169 2 2.5 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. B-138
17 38mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 17 18 19 2 22 24 26 28 3 32 34 36 38 185 45 1.1 3 IR17 185 45 176.5 1 1.45.13 19.43 6 2 3 IR17 19 6 179 2 2.65 195.13 45 1.1 3 IR18 195 45 186.5 1 1.51.43 25 69 2 3 IR18 25 69 189 2 4.1 21.2 5 1.5 3.5 IR19 21 5 198 1.5 2.41.5 215 69 2 3.5 IR19 215 69 199 2 4.1 22.2 5 1.5 3.5 IR2 22 5 28 1.5 2.49.5 225 8 2.1 3.5 IR2 225 8 211 2 5.1 24.33 5 1.5 3.5 IR22 24 5 228 1.5 2.75.63 245 8 2.1 3.5 IR22 245 8 231 2 5.7 265.37 6 2 3.5 IR24 265 6 249 2 4.6.69 265 8 2.1 3.5 IR24 265 8 251 2 6.3 285.64 6 2 4 IR26 285 6 269 2 4.98.92 29 1 2.1 4 IR26 29 1 271 2 1. 35.64 69 2 4 IR28 35 69 289 2 6.2.92 31 1 2.1 4 IR28 31 1 291 2 1.8 33.62 8 2.1 4 IR3 33 8 311 2 9.3.98 34 118 3 4 IR3 34 118 313 2.5 18.5 35.62 8 2.1 5 IR32 35 8 331 2 9.8.98 36 118 3 5 IR32 36 118 333 2.5 2. 37.62 8 2.1 5 IR34 37 8 351 2 1.1.98 38 118 3 5 IR34 38 118 353 2.5 22. 39.9 8 2.1 5 IR36 39 8 371 2 1.9.126 4 118 3 5 IR36 4 118 373 2.5 22. 415.8 1 2.1 5 IR38 415 1 391 2 18.5.12 43 14 4 5 IR38 43 14 396 3 35. Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. B-139
Type IR 4 44mm Bounary imensions Bearing numbers Abutment Mass imensions a ras 3) F 1) B rs min 2) t min max (approx.) 4 45.8.12 14 4 5 IR4 45 14 416 3 36.5 42 47.15.145 14 4 5 IR42 47 14 436 3 38.2.15 44 49.145 16 4 5 IR44 49 16 456 3 46.5 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. B-14
Inch series Type MI 9.525 34.925mm Bounary imensions Bearing numbers Abutment Mass imensions mm (!/25.4mm) mm kg a ras 3) F 1) B rs min 2) t min max (approx.) 14.288((/16) 12.95.6 MI-698 13.5.6.13 9.525(#/8) 15.875(%/8).8 19.3.6 1 MI-6112 13.5.6.19 15.875(%/8) 25.65.6 1 MI-6116 13.5.6.25 19.5(#/4) 16.13 1 MI-8121 17.5 1.2 12.7(!/2) 19.5(#/4).9 19.3 1 MI-81212 17.5 1.24 19.5(#/4) 25.65 1 MI-81216 17.5 1.32 15.875(%/8) 19.5(#/4) 22.225(&/8) 22.225(&/8) 9.78 1 MI-1146 21 1.14 22.225(&/8) 12.95 1 MI-1148 21 1.18 22.225(&/8).9 19.3 1 MI-11412 21 1.27 22.225(&/8) 25.65 1 MI-11416 21 1.36 25.4(1) 19.3 1 MI-121612 24 1.34 25.4(1).9 25.65 1 MI-121616 24 1.45 28.575(1!/8) 12.95 1 MI-14188 27 1.27 28.575(1!/8) 19.3 1 MI-141812 27 1.4 28.575(1!/8).9 25.65 1 MI-141816 27 1.52 28.575(1!/8) 32. 1 MI-14182 27 1.66 31.75(1!/4) 19.3 1 MI-16212 3.5 1.39 25.4(1) +.8 31.75(1!/4).2 25.65 1 MI-16216 3.5 1.52 31.75(1!/4) 32. 1 MI-1622 3.5 1.65 34.925(1 #/8) 12.95 1 MI-18228 33.5 1.32 28.575(1!/8) +.8 34.925(1 #/8).2 25.65 1 MI-182216 33.5 1.63 34.925(1 #/8) 32. 1 MI-18222 33.5 1.79 31.75(1!/4) 33.338(1 %/16) 34.925(1 #/8) 38.1(1!/2) 25.65 1.5 MI-22416 37 1.5.75.11 38.1(1!/2) 32. 1.5 MI-2242 37 1.5.94 41.275(1 %/8) 25.65 1.5 2 MI-212616 4 1.5.93 41.275(1 %/8).11 32. 1.5 2 MI-21262 4 1.5.116 41.275(1 %/8) 16.13 1.5 2 MI-22261 4 1.5.73.11 44.45(1 #/4) 25.65 1.5 2 MI-222816 41.5 1.5.117 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. Remarks: 1. Nominal number plus -mark represents inner ring with fine-chamfere outer surface. r B-141
Inch series Type MI 34.925 98.425mm Bounary imensions Bearing numbers Abutment Mass imensions mm (!/25.4mm) mm kg a ras 3) F 1) B rs min 2) t min max (approx.) 34.925(1 #/8) 44.45(1 #/4) 32. 1.5 2 MI-22282 41.5 1.5.146.11 44.45(1 #/4) 19.3 1.5 2 MI-242812 43 1.5.62 38.1(1!/2).11 44.45(1 #/4) 25.65 1.5 2 MI-242816 43 1.5.83 39.688(1 (/16) 47.625(1 &/8).11 32. 1.5 2 MI-2532 46 1.5.136 41.275(1 %/8) 5.8(2) +.8 25.65 1.5 2 MI-263216 48 1.5.14 5.8(2).4 32. 1.5 2 MI-26322 48 1.5.175 44.45(1 #/4) 5.8(2) 57.15(2!/4) +.8 38.35 1.5 2 MI-283624 51 1.5.31.4 57.15(2!/4) 44.7 1.5 2 MI-283628 51 1.5.36 63.5(2!/2) 38.35 2 2 MI-32424 59 2.34.13 63.5(2!/2) 44.7 2 2 MI-32428 59 2.42 69.85(2 #/4) 25.65 2 2.2 MI-364416 65 2.257 57.15(2!/4) 69.85(2 #/4).13 38.35 2 2.2 MI-364424 65 2.384 69.85(2 #/4) 44.7 2 2.2 MI-364428 65 2.447 63.5(2!/2) 76.2(3) 38.35 2 2.2 MI-44824 71.5 2.417 76.2(3).13 44.7 2 2.2 MI-44828 71.5 2.486 66.675(2 %/8) 82.55(3!/4) 44.7 2 2.2 MI-425228 74.5 2.648.15 82.55(3!/4) 51.5 2 2.2 MI-425232 74.5 2.74 69.85(2 #/4) 82.55(3!/4).15 44.7 2 2.2 MI-445228 78 2.53 76.2(3) 88.9(3!/2) 44.7 2 2.2 MI-485628 84 2.574.15 88.9(3!/2) 51.5 2 2.2 MI-485632 84 2.655 79.375(3!/8) 95.25(3 #/4).15 51.5 2.5 2.2 MI-5632 88.5 2.5.862 85.725(3 #/8) 11.6(4).15 51.5 2.5 2.5 MI-546432 94.5 2.5.93 92.75(3 %/8) 17.95(4!/4).15 51.5 2.5 2.5 MI-586832 11 2.5 1. 95.25(3 #/4) 114.3(4!/2).15 57.4 2.5 2.5 MI-67236 14 2.5 1.4 98.425(3 &/8) 114.3(4!/2) 57.4 2.5 2.5 MI-627236 17.5 2.5 1.15 114.3(4!/2).15 63.88 2.5 2.5 MI-62724 17.5 2.5 1.28 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. B-142
11.6 23.2mm Bounary imensions Bearing numbers Abutment Mass imensions mm (!/25.4mm) mm kg a ras 3) F 1) B rs min 2) t min max (approx.) 127.(5) 51.5 2.5 2.5 MI-64832 11.5 2.5 1.82 11.6(4) 127.(5).18 57.4 2.5 2.5 MI-64836 11.5 2.5 2.5 127.(5) 63.88 2.5 2.5 MI-6484 11.5 2.5 2.28 139.7(5!/2) 63.88 2.5 2.5 MI-72884 123.5 2.5 2.58 114.3(4!/2).18 139.7(5!/2) 76.58 2.5 2.5 MI-728848 123.5 2.5 3.1 12.65(4 #/4) 146.5(5 #/4).18 76.58 3 3 MI-769248 132 3 3.18 127.(5) 152.4(6) 63.88 3 3 MI-8964 14 3 2.8 152.4(6).18 76.58 3 3 MI-89648 14 3 3.35 139.7(5!/2) 165.1(6!/2).1 63.88 3 3 MI-88144 152.5 3 2.84.28 165.1(6!/2) 76.58 3 3 MI-881448 152.5 3 3.4 152.4(6).13 184.15(7!/4).33 76.58 3 3 MI-9611648 165.5 3 4.8 165.1(6!/2).13 196.85(7 #/4).43 76.58 3 3 MI-1412448 178 3 5.3 177.8(7).13 29.55(8!/4).43 76.58 3 3 MI-11213248 191 3 5.6 19.5(7!/2).2 222.25(8 #/4).5 76.58 4 3 MI-121448 26.5 4 6.1 23.2(8).33 234.95(9!/4).63 76.58 4 3.5 MI-12814848 219 4 6.5 Note 1) Dimensional tolerance to secure orinary clearance when any of these inner rings is combine with neele roller bearing with no inner ring. 2) Allowable minimum chamfer imension r. 3) Max. allowable imension of raius ra for corner rounness on shaft/housing. B-143