Extra Small Ball Bearings and Miniature Ball Bearings
Miniature and instrument ball bearings can be divided into two basic types, deep groove and angular contact. The first (deep groove) can be further divided into the following five classes depending on their design details:
Miniature and instrument ball bearings can be divided into two basic types, deep groove and angular contact. The first (deep groove) can be further divided into the following five classes depending on their design details:
1. Standard type
2. Flanged outer ring
3. Extended inner ring
4. Expanded type in which one ring has a radial thickness that is larger than normal compared with the bearing width.
5. Thin section type in which both rings are extra thin in the radial direction. They can also be classified as: open, shielded, or sealed.
Specifications:Rotating Speed: durable for 100 rpm~ 40,000 rpm; 300,000~500,000 RPM
Material: AISI52100, AISI440C, AISI304, AISI316, Ceramic
Vibration level codes: V4, V3, V2, V1
Retainer:Phenolic
Application: dental handpiece
We can provide various kinds of extra small ball bearings and miniature ball bearings for the dental drill equipment. Welcome to contact us for the dental drill bearings.
Some Model No.:
We can provide Miniature Ball Bearings in metric design and metric design with flange, inch design and inch design with flange. Below are the metric design models no. for your reference:
Metric Design
681, MR31, 691, MR41X, MR41XZZ, 681X, 681XZZ, 691X, 691XZZ, 601X, 601XZZ, 682, MR52B, 682ZZ, MR52BZZ, 692, MR62, MR62ZZ, 692ZZ, MR72, 602, MR72ZZ, 602ZZ, 682X, 682XZZ, 692X, 692XZZ, MR82X, 602X, 602XZZ, MR63, MR63ZZ, 683A, 683AZZ, MR83, 693, 693ZZ, MR93, 603, MR93ZZ, 603ZZ, 623, 623ZZ, 633, 633ZZ, MR74, MR74ZZ, MR84, MR84ZZ, 684, 684ZZ, MR104B, MR104BZZ, 694, 694ZZ, 604, 604ZZ, 624, 624ZZ1, 634, 634ZZ, MR85, MR85ZZ, MR95, MR95ZZ1, MR105, MR105ZZ, 685, MR115ZZ, MR115VV, 685ZZ, 695, 695ZZ, 695VV, 695DD, 605, 605ZZ, 605DD, 625, 625ZZ1, 625VV, 625DD, 635, 635ZZ1, 635VV, 635DD, MR106, MR106ZZ1, MR126, MR126ZZ, MR126DD, 686A, 686AZZ, 686AVV, 686ADD, 696, 696ZZ1, 696VV, 696DD, 606, 606ZZ, 606VV, 606DD, 626, 626ZZ1, 626VV, 626DD, 636, 636ZZ, 636VV, 636DD, MR117, MR117ZZ, MR137, MR137ZZ, 687, 687ZZ1, 687VV, 687DD, 697, 697ZZ1, 697VV, 697DD, 607, 607ZZ1, 607VV, 607DD, 627, 627ZZ, 627VV, 627DD, 637, 637ZZ1, MR128, MR128ZZ1, MR148, MR148ZZ, MR148VV, MR148DD, 688A, 688AZZ1, 688AVV, 688ADD, 698, 698ZZ, 698VV, 698DD, 608, 608ZZ, 608VV, 608DD, 628, 628ZZ, 628VV, 628DD, 638, 638ZZ1, 638VV, 638DD, 689, 689ZZ1, 689VV, 689DD, 699, 699ZZ1, 699VV, 699DD, 609, 609ZZ, 609VV, 609DD, 629, 629ZZ, 629VV, 629DD, 639, 639ZZ, 639VV
| Metric Design | |||||||||||||||||||||||||||||
| No. | d | D | D1 | B | No. | d | D | D1 | B | No. | d | D | D1 | B | No. | d | D | D1 | B | No. | d | D | D1 | B | No. | d | D | D1 | B |
| 681 | 1 | 3 | 1 | 602XZZ | 2.5 | 8 | 4 | 624ZZ1 | 4 | 13 | 5 | MR106ZZ1 | 6 | 10 | 3 | 687ZZ1 | 7 | 14 | 5 | 698VV | 8 | 19 | 6 | ||||||
| MR31 | 1 | 3 | 1.5 | MR63 | 3 | 6 | 2 | 634 | 4 | 16 | 5 | MR126 | 6 | 12 | 3 | 687VV | 7 | 14 | 5 | 698DD | 8 | 19 | 6 | ||||||
| 691 | 1 | 4 | 1.6 | MR63ZZ | 3 | 6 | 2.5 | 634ZZ | 4 | 16 | 5 | MR126ZZ | 6 | 12 | 4 | 687DD | 7 | 14 | 5 | 608 | 8 | 22 | 7 | ||||||
| MR41X | 1.2 | 4 | 1.8 | 683A | 3 | 7 | 2 | MR85 | 5 | 8 | 2 | MR126DD | 6 | 12 | 4 | 697 | 7 | 17 | 5 | 608ZZ | 8 | 22 | 7 | ||||||
| MR41XZZ | 1.2 | 4 | 2.5 | 683AZZ | 3 | 7 | 3 | MR85ZZ | 5 | 8 | 2.5 | 686A | 6 | 13 | 3.5 | 697ZZ1 | 7 | 17 | 5 | 608VV | 8 | 22 | 7 | ||||||
| 681X | 1.5 | 4 | 1.2 | MR83 | 3 | 8 | 2.5 | MR95 | 5 | 9 | 2.5 | 686AZZ | 6 | 13 | 5 | 697VV | 7 | 17 | 5 | 608DD | 8 | 22 | 7 | ||||||
| 681XZZ | 1.5 | 4 | 2 | 693 | 3 | 8 | 3 | MR95ZZ1 | 5 | 9 | 3 | 686AVV | 6 | 13 | 5 | 697DD | 7 | 17 | 5 | 628 | 8 | 24 | 8 | ||||||
| 691X | 1.5 | 5 | 2 | 693ZZ | 3 | 8 | 4 | MR105 | 5 | 10 | 3 | 686ADD | 6 | 13 | 5 | 607 | 7 | 19 | 6 | 628ZZ | 8 | 24 | 8 | ||||||
| 691XZZ | 1.5 | 5 | 2.6 | MR93 | 3 | 9 | 2.5 | MR105ZZ | 5 | 10 | 4 | 696 | 6 | 15 | 5 | 607ZZ1 | 7 | 19 | 6 | 638 | 8 | 28 | 9 | ||||||
| 601X | 1.5 | 6 | 2.5 | 603 | 3 | 9 | 3 | 685 | 5 | 11 | 3 | 696ZZ1 | 6 | 15 | 5 | 607VV | 7 | 19 | 6 | 638ZZ1 | 8 | 28 | 9 | ||||||
| 601XZZ | 1.5 | 6 | 3 | MR93ZZ | 3 | 9 | 4 | MR115ZZ | 5 | 11 | 4 | 696VV | 6 | 15 | 5 | 607DD | 7 | 19 | 6 | 689 | 9 | 17 | 4 | ||||||
| 682 | 2 | 5 | 1.5 | 603ZZ | 3 | 9 | 5 | MR115VV | 5 | 11 | 4 | 696DD | 6 | 15 | 5 | 627 | 7 | 22 | 7 | 689ZZ1 | 9 | 17 | 5 | ||||||
| MR52B | 2 | 5 | 2 | 623 | 3 | 10 | 4 | 685ZZ | 5 | 11 | 5 | 606 | 6 | 17 | 6 | 627ZZ | 7 | 22 | 7 | 689VV | 9 | 17 | 5 | ||||||
| 682ZZ | 2 | 5 | 2.3 | 623ZZ | 3 | 10 | 4 | 695 | 5 | 13 | 4 | 606ZZ | 6 | 17 | 6 | 627VV | 7 | 22 | 7 | 689DD | 9 | 17 | 5 | ||||||
| MR52BZZ | 2 | 5 | 2.5 | 633 | 3 | 13 | 5 | 695ZZ | 5 | 13 | 4 | 606VV | 6 | 17 | 6 | 627DD | 7 | 22 | 7 | 699 | 9 | 20 | 6 | ||||||
| 692 | 2 | 6 | 2.3 | 633ZZ | 3 | 13 | 5 | 695VV | 5 | 13 | 4 | 606DD | 6 | 17 | 6 | 637 | 7 | 26 | 9 | 699ZZ1 | 9 | 20 | 6 | ||||||
| MR62 | 2 | 6 | 2.5 | MR74 | 4 | 7 | 2 | 695DD | 5 | 13 | 4 | 626 | 6 | 19 | 6 | 637ZZ1 | 7 | 26 | 9 | 699VV | 9 | 20 | 6 | ||||||
| MR62ZZ | 2 | 6 | 2.5 | MR74ZZ | 4 | 7 | 2.5 | 605 | 5 | 14 | 5 | 626ZZ1 | 6 | 19 | 6 | MR128 | 8 | 12 | 2.5 | 699DD | 9 | 20 | 6 | ||||||
| 692ZZ | 2 | 6 | 3 | MR84 | 4 | 8 | 2 | 605ZZ | 5 | 14 | 5 | 626VV | 6 | 19 | 6 | MR128ZZ1 | 8 | 12 | 3.5 | 609 | 9 | 24 | 7 | ||||||
| MR72 | 2 | 7 | 2.5 | MR84ZZ | 4 | 8 | 3 | 605DD | 5 | 14 | 5 | 626DD | 6 | 19 | 6 | MR148 | 8 | 14 | 3.5 | 609ZZ | 9 | 24 | 7 | ||||||
| 602 | 2 | 7 | 2.8 | 684 | 4 | 9 | 2.5 | 625 | 5 | 16 | 5 | 636 | 6 | 22 | 7 | MR148ZZ | 8 | 14 | 4 | 609VV | 9 | 24 | 7 | ||||||
| MR72ZZ | 2 | 7 | 3 | 684ZZ | 4 | 9 | 4 | 625ZZ1 | 5 | 16 | 5 | 636ZZ | 6 | 22 | 7 | MR148VV | 8 | 14 | 4 | 609DD | 9 | 24 | 7 | ||||||
| 602ZZ | 2 | 7 | 3.5 | MR104B | 4 | 10 | 3 | 625VV | 5 | 16 | 5 | 636VV | 6 | 22 | 7 | MR148DD | 8 | 14 | 4 | 629 | 9 | 26 | 8 | ||||||
| 682X | 2.5 | 6 | 1.8 | MR104BZZ | 4 | 10 | 4 | 625DD | 5 | 16 | 5 | 636DD | 6 | 22 | 7 | 688A | 8 | 16 | 4 | 629ZZ | 9 | 26 | 8 | ||||||
| 682XZZ | 2.5 | 6 | 2.6 | 694 | 4 | 11 | 4 | 635 | 5 | 19 | 6 | MR117 | 7 | 11 | 2.5 | 688AZZ1 | 8 | 16 | 5 | 629VV | 9 | 26 | 8 | ||||||
| 692X | 2.5 | 7 | 2.5 | 694ZZ | 4 | 11 | 4 | 635ZZ1 | 5 | 19 | 6 | MR117ZZ | 7 | 11 | 3 | 688AVV | 8 | 16 | 5 | 629DD | 9 | 26 | 8 | ||||||
| 692XZZ | 2.5 | 7 | 3.5 | 604 | 4 | 12 | 4 | 635VV | 5 | 19 | 6 | MR137 | 7 | 13 | 3 | 688ADD | 8 | 16 | 5 | 639 | 9 | 30 | 10 | ||||||
| MR82X | 2.5 | 8 | 2.5 | 604ZZ | 4 | 12 | 4 | 635DD | 5 | 19 | 6 | MR137ZZ | 7 | 13 | 4 | 698 | 8 | 19 | 6 | 639ZZ | 9 | 30 | 10 | ||||||
| 602X | 2.5 | 8 | 2.8 | 624 | 4 | 13 | 5 | MR106 | 6 | 10 | 2.5 | 687 | 7 | 14 | 3.5 | 698ZZ | 8 | 19 | 6 | 639VV | 9 | 30 | 10 | ||||||