688ZZ Miniature Ball Bearings 8x16x4mm
The 688ZZ bearing is a Deep groove ball bearings with an inner diameter of 8 mm , an outer diameter of 16 mm, a width of 4 mm. It typically uses ABEC-1, ABEC-3, ABEC-5 grade precision tolerances and features a steel cage, supreme bearing steel AISI 52100 balls, It primarily bears radial, Its dynamic radial rated load is approximately 1610N, its static radial rated load is approximately 715N. It uses C0,C2,C3 standard radial clearance, ZZ type, metal. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Application: automobiles, machine tools, motors, instruments, construction machines, railway vehicles, agricultural machines and various other special machines.
688ZZ deep groove ball bearing is made of supreme bearing steel AISI 52100. The bearing is covered with two metal shields on both sides. The radial clearance could be C0, C2, C3. The tolerance grade could be ABEC-1, ABEC-3, ABEC-5. The hardness is HRC58-62.
Besides, we could also supply the following items:
| Bearing No. | Boundary dimensions | Basic load ratings (kN) | Limiting speed | Mass | |||||
| mm | Dynamic | Static | rpm | g | |||||
| d | D | B | rs min | Cr | Cor | Grease | Oil | ≈ | |
| 60/1.5 | 1.5 | 6 | 2.5 | 0.15 | 274 | 86 | 71,000 | 84,000 | 0.350 |
| 602 | 2 | 7 | 2.8 | 0.15 | 380 | 125 | 62,000 | 73,000 | 0.540 |
| 60/2.5 | 2.5 | 8 | 2.8 | 0.15 | 550 | 174 | 56,000 | 66,000 | 0.720 |
| 603 | 3 | 9 | 3 | 0.15 | 635 | 219 | 50,000 | 59,000 | 0.920 |
| 604 | 4 | 12 | 4 | 0.2 | 970 | 360 | 43,000 | 51,000 | 2.100 |
| 605 | 5 | 14 | 5 | 0.2 | 1,330 | 505 | 39,000 | 46,000 | 3.500 |
| 606 | 6 | 17 | 6 | 0.3 | 2,190 | 865 | 35,000 | 42,000 | 6.000 |
| 607 | 7 | 19 | 6 | 0.3 | 2,240 | 910 | 34,000 | 40,000 | 8.000 |
| 608 | 8 | 22 | 7 | 0.3 | 3,350 | 1,400 | 32,000 | 37,000 | 12.000 |
| 609 | 9 | 24 | 7 | 0.3 | 3,400 | 1,450 | 31,000 | 36,000 | 14.000 |
| 623 | 3 | 10 | 4 | 0.15 | 640 | 224 | 50,000 | 58,000 | 1.600 |
| 624 | 4 | 13 | 5 | 0.2 | 1,310 | 490 | 42,000 | 49,000 | 3.200 |
| 625 | 5 | 16 | 5 | 0.3 | 1,760 | 680 | 37,000 | 44,000 | 4.800 |
| 626 | 6 | 19 | 6 | 0.3 | 2,340 | 885 | 34,000 | 40,000 | 8.100 |
| 627 | 7 | 22 | 7 | 0.3 | 3,350 | 1,400 | 32,000 | 37,000 | 13.000 |
| 628 | 8 | 24 | 8 | 0.3 | 4,000 | 1,590 | 31,000 | 36,000 | 17.000 |
| 629 | 9 | 26 | 8 | 0.6 | 4,550 | 1,960 | 30,000 | 35,000 | 20.000 |
| 67/2.5 | 2.5 | 5 | 1.5 | 0.08 | 153 | 59 | 70,000 | 82,000 | 0.110 |
| 673 | 3 | 6 | 2 | 0.08 | 242 | 94 | 60,000 | 71,000 | 0.200 |
| 674 | 4 | 7 | 2 | 0.08 | 222 | 88 | 54,000 | 63,000 | 0.280 |
| 675 | 5 | 8 | 2 | 0.08 | 217 | 91 | 49,000 | 57,000 | 0.320 |
| 676 | 6 | 10 | 2.5 | 0.1 | 465 | 196 | 43,000 | 51,000 | 0.650 |
| 677 | 7 | 11 | 2.5 | 0.1 | 555 | 269 | 40,000 | 47,000 | 0.670 |
| 678 | 8 | 12 | 2.5 | 0.1 | 515 | 252 | 38,000 | 45,000 | 0.750 |
| 679 | 9 | 14 | 3 | 0.1 | 920 | 465 | 36,000 | 42,000 | 1.400 |
| 681 | 1 | 3 | 1 | 0.05 | 80 | 22 | 120,000 | 140,000 | 0.050 |
| 68/1.5 | 1.5 | 4 | 1.2 | 0.15 | 102 | 29 | 88,000 | 100,000 | 0.070 |
| 682 | 2 | 5 | 1.5 | 0.08 | 171 | 51 | 74,000 | 87,000 | 0.130 |
| 68/2.5 | 2.5 | 6 | 1.8 | 0.08 | 209 | 73 | 65,000 | 76,000 | 0.220 |
| 683 | 3 | 7 | 2 | 0.1 | 390 | 130 | 58,000 | 68,000 | 0.330 |
| 684 | 4 | 9 | 2.5 | 0.15 | 640 | 224 | 49,000 | 57,000 | 0.670 |
| 685 | 5 | 11 | 3 | 0.15 | 715 | 282 | 43,000 | 51,000 | 1.100 |
| 686 | 6 | 13 | 3.5 | 0.15 | 1,080 | 440 | 39,000 | 46,000 | 1.900 |
| 687 | 7 | 14 | 3.5 | 0.15 | 1,170 | 505 | 37,000 | 44,000 | 2.100 |
| 688 | 8 | 16 | 4 | 0.2 | 1,610 | 715 | 35,000 | 41,000 | 3.100 |
| 689 | 9 | 17 | 4 | 0.2 | 1,720 | 820 | 33,000 | 39,000 | 3.200 |
| 691 | 1 | 4 | 1.6 | 0.1 | 157 | 43 | 96,000 | 110,000 | 0.110 |
| 69/1.5 | 1.5 | 5 | 2 | 0.15 | 171 | 51 | 79,000 | 93,000 | 0.180 |
| 692 | 2 | 6 | 2.3 | 0.15 | 279 | 89 | 67,000 | 79,000 | 0.310 |
| 69/2.5 | 2.5 | 7 | 2.5 | 0.15 | 284 | 96 | 59,000 | 70,000 | 0.430 |
| 693 | 3 | 8 | 3 | 0.15 | 560 | 180 | 54,000 | 63,000 | 0.610 |
| 694 | 4 | 11 | 4 | 0.15 | 715 | 276 | 45,000 | 52,000 | 1.800 |
| 695 | 5 | 13 | 4 | 0.2 | 1,080 | 430 | 40,000 | 47,000 | 2.400 |
| 696 | 6 | 15 | 5 | 0.2 | 1,350 | 530 | 37,000 | 44,000 | 3.800 |
| 697 | 7 | 17 | 5 | 0.3 | 1,610 | 715 | 35,000 | 41,000 | 5.200 |
| 698 | 8 | 19 | 6 | 0.3 | 1,990 | 865 | 33,000 | 39,000 | 7.300 |
| 699 | 9 | 20 | 6 | 0.3 | 2,480 | 1,090 | 32,000 | 38,000 | 8.200 |
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