Product name: 51200 Series
| Bearing No. | Boundary dimensions | Basic load ratings(kN) | Limiting speed（rpm） | Weight | ||||
| mm | Dynamic（Cr） | Static（Cor） | Grease | Oil | Kg | |||
| d | D | T | ||||||
| 51203 | 17 | 35 | 12 | 17 | 27.2 | 4,500 | 6,300 | 0.048 |
| 51204 | 20 | 40 | 14 | 22.2 | 37.5 | 3,800 | 5,300 | 0.075 |
| 51205 | 25 | 47 | 15 | 27.8 | 50.5 | 3,400 | 4,800 | 0.11 |
| 51206 | 30 | 52 | 16 | 28 | 54.2 | 3,200 | 4,500 | 0.13 |
| 51207 | 35 | 62 | 18 | 39.2 | 78.2 | 2,800 | 4,000 | 0.21 |
| 51208 | 40 | 68 | 19 | 47 | 98.2 | 2,400 | 3,600 | 0.26 |
| 51209 | 45 | 73 | 20 | 47.8 | 105 | 2,200 | 3,400 | 0.3 |
| 51210 | 50 | 78 | 22 | 48.5 | 112 | 2,000 | 3,200 | 0.37 |
| 51211 | 55 | 90 | 25 | 67.5 | 158 | 1,900 | 3,000 | 0.58 |
| 51212 | 60 | 95 | 26 | 73.5 | 178 | 1,800 | 2,800 | 0.66 |
| 51213 | 65 | 100 | 27 | 74.8 | 188 | 1,700 | 2,600 | 0.72 |
| 51214 | 70 | 105 | 27 | 73.5 | 188 | 1,600 | 2,400 | 0.75 |
| 51215 | 75 | 110 | 27 | 74.8 | 198 | 1,500 | 2,200 | 0.82 |
| 51216 | 80 | 115 | 28 | 83.8 | 222 | 1,400 | 2,000 | 0.9 |
| 51217 | 85 | 125 | 31 | 102 | 280 | 1,300 | 1,900 | 1.21 |
| 51218 | 90 | 135 | 35 | 115 | 315 | 1,200 | 1,800 | 1.65 |
| 51220 | 100 | 150 | 38 | 132 | 375 | 1,100 | 1,700 | 2.21 |
| 51222 | 110 | 160 | 38 | 138 | 412 | 1,000 | 1,600 | 2.39 |
16th year 