NTN bearing NTN 688 Miniature Sealed Deep Groove Ball Bearing 688ZZ
- Samples:
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$0.75/Piece | 1 Piece (Min. Order) |
- Lead Time If you finish the payment today, your order will ship out within the delivery date.
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Quantity(Pieces) 1 – 1000 >1000 Est. Time(days) 3 To be negotiated
- Customization:
- Customized logo(Min. Order: 100 Pieces)Customized packaging(Min. Order: 100 Pieces)
Miniature Sealed Deep Groove Ball Bearing NTN 688ZZ Bearing
Deep groove ball bearings are the most common type of rolling bearings.
The deep groove ball bearing of deep groove ball bearings comprises an outer ring, an inner ring, a set of steel balls, and a group of retaining structures. There are two types of deep groove ball bearings, single and double row; deep groove ball structure is also divided into two kinds of sealing and opening; the open type is the bearing without sealing structure, sealed type is deep groove ball is divided into dustproof seal and oil proof seal. The material of the dustproof sealing cover is steel stamping, and it only plays a simple way in preventing dust from entering the bearing raceway. The oil-proof type is the contact type oil seal, which can effectively prevent the grease overflow in the bearing.
| Bearing No. | Boundary dimensions | Mass | ||
| mm | g | |||
| d | D | B | ≈ | |
| 602 | 2 | 7 | 2.8 | 0.54 |
| 603 | 3 | 9 | 3 | 0.92 |
| 604 | 4 | 12 | 4 | 2.1 |
| 605 | 5 | 14 | 5 | 3.5 |
| 606 | 6 | 17 | 6 | 6 |
| 607 | 7 | 19 | 6 | 8 |
| 609 | 9 | 24 | 7 | 14 |
| 623 | 3 | 10 | 4 | 1.6 |
| 624 | 4 | 13 | 5 | 3.2 |
| 626 | 6 | 19 | 6 | 8.1 |
| 627 | 7 | 22 | 7 | 13 |
| 628 | 8 | 24 | 8 | 17 |
| 629 | 9 | 26 | 8 | 20 |
| 67/2.5 | 2.5 | 5 | 1.5 | 0.11 |
| 673 | 3 | 6 | 2 | 0.2 |
| 674 | 4 | 7 | 2 | 0.28 |
| 675 | 5 | 8 | 2 | 0.32 |
| 676 | 6 | 10 | 2.5 | 0.65 |
| 677 | 7 | 11 | 2.5 | 0.67 |
| 678 | 8 | 12 | 2.5 | 0.75 |
| 679 | 9 | 14 | 3 | 1.4 |
| 681 | 1 | 3 | 1 | 0.05 |
| 68/1.5 | 1.5 | 4 | 1.2 | 0.07 |
| 682 | 2 | 5 | 1.5 | 0.13 |
| 683 | 3 | 7 | 2 | 0.33 |
| 684 | 4 | 9 | 2.5 | 0.67 |
| 685 | 5 | 11 | 3 | 1.1 |
| 686 | 6 | 13 | 3.5 | 1.9 |
| 687 | 7 | 14 | 3.5 | 2.1 |
| 688 | 8 | 16 | 4 | 3.1 |
| 689 | 9 | 17 | 4 | 3.2 |
| 691 | 1 | 4 | 1.6 | 0.11 |
| 69/1.5 | 1.5 | 5 | 2 | 0.18 |
| 692 | 2 | 6 | 2.3 | 0.31 |
| 69/2.5 | 2.5 | 7 | 2.5 | 0.43 |
| 693 | 3 | 8 | 3 | 0.61 |
| 694 | 4 | 11 | 4 | 1.8 |
| 695 | 5 | 13 | 4 | 2.4 |
| 696 | 6 | 15 | 5 | 3.8 |
| 697 | 7 | 17 | 5 | 5.2 |
| 698 | 8 | 19 | 6 | 7.3 |
| 699 | 9 | 20 | 6 | 8.2 |
