Miniature Ball Bearings: Sealing Types & Configurations
Miniature ball bearings are available in multiple sealing types and configuration options to meet different operating environments and application requirements. By selecting the appropriate sealing structure and lubrication condition, bearings can achieve
an optimal balance between protection, rotational efficiency, and service life.
Miniature Ball Bearings: Technical Data & Specifications
| Product | Models/Type | Bore Diameter (d) (mm) | Outer Diameter (D) (mm) | Chamfer Dimension (r) (mm) | Width (B) (mm) | Weight (g) | Limiting Speed (rpm)
| Dynamic Load Rating (Cr) (N) | Static Load Rating (Cor) (N) |
| 603 | ZZ/Metal Shields | 3 | 9 | 0.15 | 3
| 0.92 | 50,000 | 635 | 219 |
| 604 | /Open | 4
| 12 | 02 | 4 | 2.1 | 51,000 | 970 | 360 |
| 605 | /Open | 5 | 14 | 0.2 | 5 | 3.5 | 46,000 | 1330 | 505 |
| 606 | /Open | 6 | 17 | 0.3 | 6 | 6 | 42,000 | 2190 | 865 |
| 607 | 2RS/Rubber Seals | 7 | 19 | 0.3 | 6 | 8 | 34,000 | 2240 | 910 |
| 608 | Open | 8
| 22 | 0.3 | 7 | 12 | 37,000
| 3350 | 1400
|
| 608 | zz/Metal Shields | 8 | 22 | 0.3 | 7 | 12 | 37.000 | 3350 | 1400 |
| 609 | 2RS/Rubber Seals | 9 | 24 | 0.3 | 7
| 14 | 36,000 | 3400 | 1450 |
| 609 | ZZ/Metal Shields | 9 | 24 | 0.3 | 7 | 14 | 36,000 | 3400 | 1450 |
| Product | Models/Type | Bore Diameter (d) (mm) | Outer Diameter (D) (mm | Chamfer Dimension (r) (mm) | Width (B) (mm) | Weight (g) | Limiting Speed (rpm) | Dynamic Load Rating (Cr) (N) | Static Load Rating (Cor) (N) |
| 623 | ZZ/Metal Shields | 3 | 10 | 0.15 | 4 | 1.6 | 50,000 | 640 | 224 |
| 624 | ZZ/Metal Shields | 4 | 13 | 0.2 | 5 | 3.2 | 42,000 | 1310 | 490 |
| 625 | ZZ/Metal Shields | 5 | 16 | 0.3 | 5 | 4.8 | 37,000 | 1760 | 680 |
| 626 | 2RS/Rubber Seals | 6 | 19 | 0.3 | 6 | 8.1 | 34,000 | 2340 | 885 |
| 627 | ZZ/Metal Shields | 7 | 22 | 0.3 | 7 | 13 | 32,000 | 3350 | 1400 |
| 628 | 2RS/Rubber Seals | 8 | 24 | 0.3 | 8 | 17 | 31,000 | 4000 | 1590 |
| 628 | ZZ/Metal Shields | 8 | 24 | 0.3 | 8 | 17 | 31,000 | 4000 | 1590 |
| 629 | Open | 9 | 26 | 0.3 | 8 | 20 | 35,000 | 4550 | 1960 |
| 629 | ZZ/Metal Shields | 9 | 26 | 0.3 | 8 | 20 | 30,000 | 4550 | 1960 |
| Product | Models/Type | Bore Diameter (d) (mm) | Outer Diameter (D) (mm | Chamfer Dimension (r) (mm) | Width (B) (mm) | Weight (g) | Limiting Speed (rpm) | Dynamic Load Rating (Cr) (N) | Static Load Rating (Cor) (N) |
| 634 | Open | 4 | 16 | 0.3 | 5 | 5.1 | 44,000 | 1760 | 680 |
| 634 | ZZ/Metal Shields | 4 | 16 | 0.3 | 5 | 5.1 | 37,000 | 1760 | 680 |
| 635 | Open | 5 | 19 | 0.3 | 6 | 8 | 40,000 | 2340 | 885 |
| 635 | ZZ/Metal Shields | 5 | 19 | 0.3 | 6 | 8 | 34,000 | 2340 | 885 |
| Product | Models/Type | Bore Diameter (d) (mm) | Outer Diameter (D) (mm | Chamfer Dimension (r) (mm) | Width (B) (mm) | Weight (g) | Limiting Speed (rpm) | Dynamic Load Rating (Cr) (N) | Static Load Rating (Cor) (N) |
| 673 | ZZ/Metal Shields | 3 | 6 | 0.08 | 2.5 | 0.2 | 60,000 | 242 | 94 |
| 674 | Open | 4 | 7 | 0.08 | 2 | 0.28 | 63,000 | 269 | 117 |
| 675 | Open | 5 | 8 | 0.08 | 2 | 0.32 | 57,000 | 292 | 142 |
| 676 | ZZ/Metal Shields | 5 | 8 | 0.08 | 2.5 | 0.32 | 49,000 | 292 | 142 |
| 677 | ZZ/Metal Shields | 7 | 11 | 0.1 | 3 | 0.67 | 40,000 | 555 | 269 |
| 678 | 2RS/Rubber Seals | 8 | 12 | 0.1 | 3.5 | 0.75 | 38,000 | 575 | 298 |
| 679 | ZZ/Metal Shields | 8 | 12 | 0.1 | 3.5 | 0.75 | 38,000 | 575 | 298 |
| Product | Models/Type | Bore Diameter (d) (mm) | Outer Diameter (D) (mm | Chamfer Dimension (r) (mm) | Width (B) (mm) | Weight (g) | Limiting Speed (rpm) | Dynamic Load Rating (Cr) (N) | Static Load Rating (Cor) (N) |
| 683 | Open | 3 | 7 | 0.1 | 2 | 0.33 | 68,000 | 390 | 130 |
| 684 | ZZ/Metal Shields | 4 | 9 | 0.1 | 4 | 0.67 | 49,000 | 640 | 224 |
| 685 | Open | 5 | 11 | 0.15 | 3 | 1.1 | 51,000 | 715 | 282 |
| 686 | 2RS/Rubber Seals | 6 | 13 | 0.15 | 5 | 1.9 | 39,000 | 1080 | 440 |
| 687 | 2RS/Rubber Seals | 7 | 14 | 0.15 | 5 | 2.1 | 37,000 | 1170 | 510 |
| 688 | Open | 8 | 16 | 0.2 | 4 | 3.1 | 41,000 | 1260 | 585 |
| 688 | 2RS/Rubber Seals | 8 | 16 | 0.2 | 4 | 3.1 | 41,000 | 1260 | 585 |
| 689 | 2RS/Rubber Seals | 9 | 17 | 0.2 | 5 | 3.2 | 33,000 | 1720 | 820 |
| 689 | ZZ/Metal Shields | 9 | 17 | 0.2 | 5 | 3.2 | 33,000 | 1720 | 820 |
| Product | Models/Type | Bore Diameter (d) (mm) | Outer Diameter (D) (mm） | Chamfer Dimension (r) (mm) | Width (B) (mm) | Weight (g) | Limiting Speed (rpm) | Dynamic Load Rating (Cr) (N) | Static Load Rating (Cor) (N) |
| 693 | ZZ/Metal Shields | 3 | 8 | 0.15 | 4 | 0.61 | 54,000 | 560 | 180 |
| 694 | Open | 4 | 11 | 0.15 | 4 | 1.8 | 52,000 | 715 | 276 |
| 695 | ZZ/Metal Shields | 5 | 13 | 0.2 | 4 | 2.4 | 40,000 | 1080 | 430 |
| 696 | ZZ/Metal Shields | 6 | 15 | 0.2
| 5
| 3.8 | 37,000 | 1350 | 530 |
| 697 | 2RS/Rubber Seals | 7 | 17 | 0.3 | 5 | 5.2 | 35,000 | 1610 | 715 |
| 698 | 2RS/Rubber Seals | 8 | 19 | 0.3
| 6 | 7.3 | 33,000 | 1990 | 865 |
698
| ZZ/Metal Shields | 8 | 19 | 0.3 | 6 | 7.3 | 33,000 | 1990 | 865 |
| 699 | 2RS/Rubber Seals | 9 | 20 | 0.3 | 6 | 8.2 | 32,000 | 2480 | 1090 |
| 699 | ZZ/Metal Shields | 9 | 20 | 0.3 | 6 | 8.2 | 32,000 | 2480 | 1090 |
