| Customization: | Available |
|---|---|
| Contact Angle: | 60° |
| Aligning: | Non-Aligning Bearing |
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UJK Precision Miniature Ball Bearings: Engineered for Micro-Performance & Reliability
UJK specializes in manufacturing high-precision Miniature Ball Bearings for demanding applications where space is limited, yet uncompromising performance is critical. Our bearings are meticulously engineered to exacting tolerances (including ABEC ratings) using premium materials like high-carbon chrome steel (GCr15/SUJ2) and corrosion-resistant stainless steel (AISI 440C/304/316).
Key Advantages:
Ultra-Precise: Consistent dimensional accuracy and smooth operation essential for sensitive equipment.
Robust & Durable: Hardened races and balls ensure extended service life under load.
Low Noise & Vibration: Optimized design delivers quiet, friction-minimized rotation.
High-Speed Capable: Engineered for stable performance at elevated RPMs.
Versatile Solutions: Available in open, shielded (ZZ), or sealed (2RS) configurations in metric and inch series (1mm ID+).
| New Modle | Old Model | Same Model | d | D | B |
| 618/1 | 1000481 | 681 | 1 | 3 | 1 |
| 618/1.5 | 100008/1.5 | 681X | 1.5 | 4 | 1.2 |
| 618/2 | 1000082 | 682 | 2 | 5 | 1.5 |
| 618/2.5 | 100008/2.5 | 682X | 2.5 | 6 | 1.8 |
| 618/3 | 1000083 | 683 | 3 | 7 | 2 |
| 618/4 | 1000084 | 684 | 4 | 9 | 2.5 |
| 618/5 | 1000085 | 685 | 5 | 11 | 3 |
| 618/6 | 1000086 | 686 | 6 | 13 | 3.5 |
| 618/7 | 1000087 | 687 | 7 | 14 | 3.5 |
| 618/8 | 1000088 | 688 | 8 | 16 | 4 |
| 618/9 | 1000089 | 689 | 9 | 17 | 4 |
| 619/1 | 1000091 | 691 | 1 | 4 | 1.6 |
| 619/1.5 | 100009/1.5 | 691X | 1.5 | 5 | 2 |
| 619/2 | 1000092 | 692 | 2 | 6 | 2.3 |
| 619/2.5 | 100009/2.5 | 692X | 2.5 | 7 | 2.5 |
| 619/3 | 1000093 | 693 | 3 | 8 | 3 |
| 619/4 | 1000094 | 694 | 4 | 11 | 3 |
| 619/5 | 1000095 | 695 | 5 | 13 | 4 |
| 619/6 | 1000096 | 696 | 6 | 15 | 5 |
| 619/7 | 1000097 | 697 | 7 | 17 | 5 |
| 619/8 | 1000098 | 698 | 8 | 19 | 6 |
| 619/9 | 1000099 | 699 | 9 | 20 | 6 |
| 60/1.5 | 1/1.5 | 601X | 1.5 | 6 | 2.5 |
| 602 | 12 | 602 | 2 | 7 | 2.8 |
| 60/2.5 | 1/2.5 | 602X | 2.5 | 8 | 2.8 |
| 603 | 13 | 603 | 3 | 9 | 3 |
| 604 | 14 | 604 | 4 | 12 | 4 |
| 605 | 15 | 605 | 5 | 14 | 5 |
| 606 | 16 | 606 | 6 | 17 | 6 |
| 607 | 17 | 607 | 7 | 19 | 6 |
| 608 | 18 | 608 | 8 | 22 | 7 |
| 609 | 19 | 609 | 9 | 24 | 7 |
| 623 | 23 | 623 | 3 | 10 | 4 |
| 624 | 24 | 624 | 4 | 13 | 5 |
| 625 | 25 | 625 | 5 | 16 | 5 |
| 626 | 26 | 626 | 6 | 19 | 6 |
| 627 | 27 | 627 | 7 | 22 | 7 |
| 628 | 28 | 628 | 8 | 24 | 8 |
| 629 | 29 | 629 | 9 | 26 | 8 |
| 633 | 33 | 633 | 3 | 13 | 5 |
| 634 | 34 | 634 | 4 | 16 | 5 |
| 635 | 35 | 635 | 5 | 19 | 6 |
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