The 30300 series tapered roller bearing is a high-performance rolling bearing widely used in industrial machinery, automobiles and heavy equipment. This series of bearings adopts a tapered roller design, which can withstand large axial and radial loads, and has high rotation accuracy and wear resistance. Its internal structure is optimized to effectively reduce friction and heat, thus extending its service life. 30300 series bearings are usually made of high-quality alloy steel, with fine surface machining and heat treatment to improve their strength and durability. This series of bearings also has good sealing performance, which can effectively prevent the intrusion of external pollutants and adapt to various harsh working environments.
Product parameters
Designation | Principal dimensions(mm) | Basic load ratings(KN) | Pu | Speed ratings(rpm) | Weight(Kg) | ISO335 | Dimensions (mm) | Abutment and fillet dimensions (mm) | Value | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
d1 | D | B | dyc(Cr) | stc(Cor) | Speed Ratings | Limiting Speed | Dimensions (ABMA) | d | d1~ | B | C | r1,2(min) | r3,4(min) | a | da(max) | db(min) | Da(min) | Da(max) | Db(min) | Ca(min) | Cb(min) | ra(max) | rb(max) | e | Y | Yo | |||
30303J2 | 17 | 47 | 15,25 | 28,1 | 25 | 2,75 | 12000 | 16000 | 0,13 | 2FB | 17 | 30,4 | 14 | 12 | 1 | 1 | 10 | 25 | 23 | 40 | 41 | 42 | 2 | 3 | 1 | 1 | 0,28 | 2,1 | 1,1 |
32303J2/Q | 17 | 47 | 20,25 | 40 | 33,5 | 3,65 | 12000 | 16000 | 0,17 | 2FD | 17 | 30,7 | 19 | 16 | 1 | 1 | 12 | 24 | 23 | 39 | 41 | 43 | 3 | 4 | 1 | 1 | 0,28 | 2,1 | 1,1 |
30304J2/Q | 20 | 52 | 16,25 | 39 | 32,5 | 3,6 | 12000 | 14000 | 0,17 | 2FB | 20 | 34,3 | 15 | 13 | 1,5 | 1,5 | 11 | 28 | 27 | 44 | 45 | 47 | 2 | 3 | 1,5 | 1,5 | 0,3 | 2 | 1,1 |
30305J2 | 25 | 62 | 18,25 | 44,6 | 43 | 4,75 | 9000 | 12000 | 0,26 | 2FB | 25 | 41,5 | 17 | 15 | 1,5 | 1,5 | 13 | 34 | 32 | 54 | 55 | 57 | 2 | 3 | 1,5 | 1,5 | 0,3 | 2 | 1,1 |
30306J2/Q | 30 | 72 | 20,75 | 64 | 56 | 6,4 | 8000 | 10000 | 0,39 | 2FB | 30 | 48,4 | 19 | 16 | 1,5 | 1,5 | 15 | 41 | 37 | 62 | 65 | 66 | 3 | 4,5 | 1,5 | 1,5 | 0,31 | 1,9 | 1,1 |
30307J2/Q | 35 | 80 | 22,75 | 83 | 73,5 | 8,3 | 7500 | 9000 | 0,52 | 2FB | 35 | 54,5 | 21 | 18 | 2 | 1,5 | 16 | 46 | 44 | 70 | 71 | 74 | 3 | 4,5 | 2 | 1,5 | 0,31 | 1,9 | 1,1 |
30308J2/Q | 40 | 90 | 25,25 | 100 | 95 | 10,8 | 6300 | 8000 | 0,72 | 2FB | 40 | 62,5 | 23 | 20 | 2 | 1,5 | 19 | 53 | 49 | 77 | 81 | 82 | 3 | 5 | 2 | 1,5 | 0,35 | 1,7 | 0,9 |
30309J2/Q | 45 | 100 | 27,25 | 125 | 120 | 14,3 | 5600 | 7000 | 0,97 | 2FB | 45 | 70,1 | 25 | 22 | 2 | 1,5 | 21 | 59 | 53 | 86 | 91 | 92 | 3 | 5 | 2 | 1,5 | 0,35 | 1,7 | 0,9 |
30310J2/Q | 50 | 110 | 29,25 | 143 | 140 | 16,6 | 5300 | 6300 | 1,25 | 2FB | 50 | 77,2 | 27 | 23 | 2,5 | 2 | 23 | 65 | 60 | 95 | 100 | 102 | 4 | 6 | 2 | 2 | 0,35 | 1,7 | 0,9 |
30311J2/Q | 55 | 120 | 31,5 | 166 | 163 | 19,3 | 4800 | 5600 | 1,55 | 2FB | 55 | 84 | 29 | 25 | 2,5 | 2 | 24 | 71 | 65 | 104 | 112 | 111 | 4 | 6,5 | 2 | 2 | 0,35 | 1,7 | 0,9 |
30312J2/Q | 60 | 130 | 33,5 | 168 | 196 | 23,6 | 4000 | 5300 | 1,95 | 2FB | 60 | 91,9 | 31 | 26 | 3 | 2,5 | 26 | 77 | 72 | 112 | 118 | 120 | 5 | 7,5 | 2,5 | 2 | 0,35 | 1,7 | 0,9 |
30313J2/Q | 65 | 140 | 36 | 194 | 228 | 27,5 | 3600 | 4800 | 2,40 | 2GB | 65 | 98,6 | 33 | 28 | 3 | 2,5 | 28 | 84 | 77 | 122 | 128 | 130 | 5 | 8 | 2,5 | 2 | 0,35 | 1,7 | 0,9 |
30314J2/Q | 70 | 150 | 38 | 220 | 260 | 31 | 3400 | 4500 | 2,90 | 2GB | 70 | 105 | 35 | 30 | 3 | 2,5 | 29 | 90 | 82 | 130 | 138 | 140 | 5 | 8 | 2,5 | 2 | 0,35 | 1,7 | 0,9 |
30315J2/Q | 75 | 160 | 40 | 246 | 290 | 34 | 3200 | 4300 | 3,45 | 2GB | 75 | 112 | 37 | 31 | 3 | 2,5 | 31 | 96 | 87 | 139 | 148 | 149 | 5 | 9 | 2,5 | 2 | 0,35 | 1,7 | 0,9 |
30316J2 | 80 | 170 | 42,5 | 270 | 320 | 38 | 3000 | 4300 | 4,10 | 2GB | 80 | 120 | 39 | 33 | 3 | 2,5 | 33 | 102 | 92 | 148 | 158 | 159 | 5 | 9,5 | 2,5 | 2 | 0,35 | 1,7 | 0,9 |
30317J2 | 85 | 180 | 44,5 | 303 | 365 | 40,5 | 2800 | 4000 | 4,85 | 2GB | 85 | 126 | 41 | 34 | 4 | 3 | 35 | 107 | 99 | 156 | 166 | 167 | 6 | 10,5 | 3 | 2,5 | 0,35 | 1,7 | 0,9 |
30318J2 | 90 | 190 | 46,5 | 330 | 400 | 44 | 2600 | 4000 | 5,65 | 2GB | 90 | 132 | 43 | 36 | 4 | 3 | 36 | 113 | 105 | 165 | 176 | 176 | 6 | 10,5 | 3 | 2,5 | 0,35 | 1,7 | 0,9 |
30319 | 95 | 200 | 49,5 | 330 | 390 | 42,5 | 2600 | 3400 | 6,70 | 2GB | 95 | 139 | 45 | 38 | 4 | 3 | 39 | 118 | 110 | 172 | 186 | 184 | 6 | 11,5 | 3 | 2,5 | 0,35 | 1,7 | 0,9 |
30320J2 | 100 | 215 | 51,5 | 402 | 490 | 53 | 2400 | 3200 | 8,05 | 2GB | 100 | 148 | 47 | 39 | 4 | 3 | 40 | 127 | 115 | 184 | 201 | 197 | 6 | 12,5 | 3 | 2,5 | 0,35 | 1,7 | 0,9 |
30322J2 | 110 | 240 | 54,5 | 473 | 585 | 62 | 2200 | 2800 | 11,0 | 2GB | 110 | 165 | 50 | 42 | 4 | 3 | 43 | 142 | 125 | 206 | 226 | 220 | 8 | 12,5 | 3 | 2,5 | 0,35 | 1,7 | 0,9 |
30324J2 | 120 | 260 | 59,5 | 561 | 710 | 73,5 | 2000 | 2600 | 14,0 | 2GB | 120 | 178 | 55 | 46 | 4 | 3 | 47 | 153 | 135 | 221 | 245 | 237 | 7 | 13,5 | 3 | 2,5 | 0,35 | 1,7 | 0,9 |
30326J2 | 130 | 280 | 63,75 | 627 | 800 | 83 | 1800 | 2400 | 17,0 | 2GB | 130 | 196 | 58 | 49 | 5 | 4 | 51 | 164 | 150 | 239 | 263 | 255 | 8 | 14,5 | 4 | 3 | 0,35 | 1,7 | 0,9 |
33030 | 150 | 225 | 59 | 457 | 865 | 86,5 | 2000 | 2600 | 8,15 | 2EE | 150 | 188 | 59 | 46 | 3 | 2,5 | 48 | 164 | 162 | 200 | 213 | 217 | 8 | 13 | 2,5 | 2 | 0,37 | 1,6 | 0,9 |
30332J2 | 160 | 340 | 75 | 913 | 1180 | 114 | 1500 | 2000 | 29,0 | 2GB | 160 | 233 | 68 | 58 | 5 | 4 | 61 | 201 | 180 | 290 | 323 | 310 | 9 | 17 | 4 | 3 | 0,35 | 1,7 | 0,9 |
30352J2 | 260 | 540 | 113 | 2120 | 3050 | 250 | 850 | 1200 | 110 | - | 260 | 376 | 102 | 85 | 6 | 6 | 97 | 325 | 286 | 461 | 514 | 493 | 15 | 28 | 5 | 5 | 0,35 | 1,7 | 0,9 |
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