small ball bearing miniature ball bearing miniature bearing bearing 688zz micro ball bearing tiny ball bearing mini ball bearing miniature ball
| d | D | 2B | rs min | r1s min | Cr | Cor | Grease | oil | (Approx.) | |
| 10 | 35 | 22 | 0.6 | 0.3 | 15.4 | 9.2 | 18 000 |
24 000 |
0.082 | 7300BDT | 10 | 35 | 22 | 0.6 | 0.3 | 16.5 | 9.85 | 20 000 |
27 000 |
0.08 | 7300DT |
| 12 | 37 | 24 | 1 | 0.6 | 17.1 | 9.9 | 16 000 |
21 000 |
0.09 | 7301BDT | 12 | 37 | 24 | 1 | 0.6 | 18.2 | 10.5 | 18 000 |
24 000 |
0.088 | 7301DT |
| 15 | 42 | 26 | 1 | 0.6 | 20.3 | 13.3 | 13 000 |
18 000 |
0.114 | 7302BDT | 15 | 42 | 26 | 1 | 0.6 | 21.9 | 14.4 | 15 000 |
21 000 |
0.11 | 7302DT |
| 17 | 47 | 28 | 1 | 0.6 | 24.0 | 16.0 | 12 000 |
16 000 |
0.218 | 7303BDT | 17 | 47 | 28 | 1 | 0.6 | 25.9 | 17.3 | 14 000 |
19 000 |
0.214 | 7303DT |
| 20 | 52 | 30 | 1.1 | 0.6 | 28.2 | 19.3 | 11 000 |
14 000 |
0.282 | 7304BDT | 20 | 52 | 30 | 1.1 | 0.6 | 30.5 | 20.8 | 12 000 |
17 000 |
0.276 | 7304DT |
| 25 | 62 | 34 | 1.1 | 0.6 | 39.5 | 29.3 | 9 100 |
12 000 |
0.468 | 7305BDT | 25 | 62 | 34 | 1.1 | 0.6 | 43.0 | 31.5 | 10 000 |
14 000 |
0.46 | 7305DT |
| 30 | 72 | 38 | 1.1 | 0.6 | 50.0 | 41.0 | 7 700 |
10 000 |
0.704 | 7306BDT | 30 | 72 | 38 | 1.1 | 0.6 | 54.5 | 44.5 | 8 900 |
12 000 |
0.69 | 7306DT |
| 35 | 80 | 42 | 1.5 | 1 | 59.5 | 48.5 | 6 800 |
9 000 |
0.938 | 7307BDT | 35 | 80 | 42 | 1.5 | 1 | 65.0 | 52.5 | 7 800 |
10 000 |
0.924 | 7307DT |
| 40 | 90 | 46 | 1.5 | 1 | 73.0 | 60.5 | 6 000 |
8 000 |
1.272 | 7308BDT | 40 | 90 | 46 | 1.5 | 1 | 79.5 | 66.0 | 6 900 |
9 200 |
1.25 | 7308DT |
| 45 | 100 | 50 | 1.5 | 1 | 95.0 | 80.5 | 5 400 |
7 200 |
1.708 | 7309BDT | 45 | 100 | 50 | 1.5 | 1 | 103 | 88.0 | 6 200 |
8 200 |
1.674 | 7309DT |
| 50 | 110 | 54 | 2 | 1 | 111 | 96.0 | 4 900 |
6 500 |
2.22 | 7310BDT | 50 | 110 | 54 | 2 | 1 | 121 | 105 | 5 600 |
7 500 |
2.18 | 7310DT |
| 55 | 120 | 58 | 2 | 1 | 128 | 113 | 4 500 |
5 900 |
2.84 | 7311BDT | 55 | 120 | 58 | 2 | 1 | 139 | 123 | 5 100 |
6 800 |
2.78 | 7311DT |
