small ball bearing miniature ball bearing miniature bearing bearing 688zz micro ball bearing tiny ball bearing mini ball bearing miniature ball
| Dimensions(mm) | Basic load ratings(kN) | Limiting Speed (rpm) | ||||||||
| d | D | 2B | rs min | r1s min | Cr | Cor | Grease | oil | (Approx.) | |
| 40 | 80 | 36 | 1.1 | 0.6 | 52.0 | 46.0 | 6 700 |
8 900 |
0.75 | 7208BDB | 40 | 80 | 36 | 1.1 | 0.6 | 57.5 | 50.5 | 7 700 |
10 000 |
0.71 | 7208DB |
| 45 | 85 | 38 | 1.1 | 0.6 | 58.5 | 52.5 | 6 000 |
8 000 |
0.82 | 7209BDB | 45 | 85 | 38 | 1.1 | 0.6 | 64.5 | 57.5 | 6 900 |
9 200 |
0.808 | 7209DB |
| 50 | 90 | 40 | 1.1 | 0.6 | 60.5 | 57.0 | 5 500 |
7 300 |
0.932 | 7210BDB | 50 | 90 | 40 | 1.1 | 0.6 | 67.0 | 63.0 | 6 300 |
8 300 |
0.914 | 7210DB |
| 55 | 100 | 42 | 1.5 | 1 | 75.0 | 72.0 | 5 000 |
6 600 |
1.224 | 7211BDB | 55 | 100 | 42 | 1.5 | 1 | 83.0 | 79.0 | 5 700 |
7 600 |
1.2 | 7211DB |
| 60 | 110 | 44 | 1.5 | 1 | 91.0 | 89.0 | 4 600 |
6 100 |
1.56 | 7212BDB | 60 | 110 | 44 | 1.5 | 1 | 100 | 98.0 | 5 300 |
7 000 |
1.53 | 7212DB |
| 65 | 120 | 46 | 1.5 | 1 | 103 | 105 | 4 200 |
5 600 |
1.962 | 7213BDB | 65 | 120 | 46 | 1.5 | 1 | 114 | 116 | 4 900 |
6 500 |
1.924 | 7213DB |
| 70 | 125 | 48 | 1.5 | 1 | 112 | 116 | 3 900 |
5 200 |
2.22 | 7214BDB | 70 | 125 | 48 | 1.5 | 1 | 124 | 127 | 4 500 |
6 000 |
2.18 | 7214DB |
| 75 | 130 | 50 | 1.5 | 1 | 116 | 124 | 3 700 |
4 900 |
2.38 | 7215BDB | 75 | 130 | 50 | 1.5 | 1 | 128 | 137 | 4 200 |
5 600 |
2.34 | 7215DB |
| 80 | 140 | 52 | 2 | 1 | 131 | 139 | 3 400 |
4 600 |
2.84 | 7216BDB | 80 | 140 | 52 | 2 | 1 | 145 | 152 | 3 900 |
5 300 |
2.78 | 7216DB |
| 85 | 150 | 56 | 2 | 1 | 146 | 161 | 3 200 |
4 300 |
3.64 | 7217BDB | 85 | 150 | 56 | 2 | 1 | 162 | 177 | 3 700 |
5 000 |
3.56 | 7217DB |
| 90 | 160 | 60 | 2.0 | 1 | 173 | 188 | 3 100 |
4 100 |
4.44 | 7218BDB | 90 | 160 | 60 | 2.0 | 1 | 191 | 206 | 3 500 |
4 700 |
4.36 | 7218DB |
| 95 | 170 | 64 | 2.1 | 1.1 | 196 | 215 | 2 900 |
3 800 |
5.44 | 7219BDB | 95 | 170 | 64 | 2.1 | 1.1 | 217 | 236 | 3 300 |
4 400 |
5.34 | 7219DB |
