Call Now
This product is widely used in various miniature, precision, and high-speed equipment. Key applicable industries include: micro DC motors, stepper motors, household appliances (e.g., fans, juicers), office automation equipment (e.g., printers, scanners), precision instruments and meters, model toys (e.g., RC planes, cars), smart home devices, and low-power industrial transmission devices.
Product structure:
The 694 ZZ bearing is a miniature deep groove ball bearing with standard dimensions of 4mm inner diameter, 11mm outer diameter, and 4mm width. Structurally, it features a single row of deep groove balls and is equipped with metal shields on both sides (ZZ denotes double-sided metal shielding). The cage is typically made of stamped steel or engineering plastic. This design achieves a sealed, compact, and lightweight structure.
Key performance features:
Main performance characteristics include: 1) Low Friction & High Speed: Precision-ground balls and raceways ensure smooth operation, suitable for relatively high speeds. 2) Dust Protection: Double-sided metal shields (non-contact) effectively prevent the ingress of dust and larger particles while maintaining very low friction torque. 3) Low Noise & Smooth Operation: High-precision manufacturing results in low vibration and noise levels. 4) Maintenance-Free: Pre-lubricated with grease, requiring no additional lubrication under normal conditions. 5) Cost-Effective: Offers high value for money, suitable for high-volume applications.
Main application scenarios:
Primarily used in light to moderate load scenarios with strict limitations on space, weight, and operational noise. Typical applications include: shaft support in various micro motors (e.g., cooling fan motors, electric toothbrush motors), drive rollers in office equipment, rotating components in instruments and meters, axles or transmission parts in model toys, moving parts in smart home devices (e.g., gimbals, slides), and rotating mechanisms in small medical devices.
Technical Specifications & Requirements:
Dimensional Standards: Conforms to ISO or GB standards for 6-series miniature bearing dimensions.
Tolerance Class: Typically Normal Class (ABEC-1/P0), with higher precision grades available upon request.
Radial Clearance: Usually standard CN group clearance, ensuring stable operation under normal temperatures.
Lubrication: Standard products are pre-lubricated with general-purpose lithium-based grease. Other special greases can be supplied upon request.
Materials: Rings and balls are generally made of high-carbon chromium bearing steel (e.g., GCr15). Cages are made of steel or nylon.
Shields: Made of stainless steel, fixed by press-fit, providing effective dust protection.
Operating Environment: Suitable for normal temperature, dry to moderately humid environments. Not suitable for extreme high temperatures, corrosive environments, or applications requiring complete waterproofing/sealing.
Installation Requirements: Requires ensuring dimensional accuracy and concentricity of the shaft and housing to avoid improper installation stress.
| 内径 | 外径 | 高度 | 倒角(r) | 基本 | 基本 | 极限转速 | 型号 | ||||
| 动负荷 | 静负荷 | Limiting Speed | (Reference) | ||||||||
| (D) | (D) | 开放型 | 防尘盖型 | 开放型 | 防尘盖型 | Cr(N)Basic | Cor(N)Basic | 润滑脂 | 润滑剂 | 开放型 | 防尘盖型 |
|
(B) (Open) |
(B1) (Shield) |
(Open ) | (Shield) | Dynamic | Static | (Grase) | (Oil) | (Open) | (Shield) | ||
| 1 | 3 | 1 | 一 | 0.05 | - | 80 | 23 | 130 | 150 | 681 | - |
| 3 | 1.5 | 一 | 0.05 | - | |||||||
| 4 | 1.6 | 一 | 0.1 | - | 140 | 36 | 100 | 120 | 691 | - | |
| 1.5 | 4 | 1.2 | 2 | 0.05 | 0.05 | 112 | 33 | 100 | 120 | 681X | 681Xzz |
| 5 | 2 | 2.6 | 0.15 | 0.15 | 237 | 69 | 85 | 100 | 691X | 691Xzz | |
| 6 | 2.5 | 3 | 0.15 | 0.15 | 330 | 98 | 75 | 90 | 601X | 601Xzz | |
| 2 | 5 | 1.5 | 2.3 | 0.08 | 0.08 | 169 | 50 | 85 | 100 | 682 | 682zz |
| 5 | 2 | 2.5 | 0.1 | 0.1 | 169 | 50 | 85 | 100 | MR52 | MR52zz | |
| 6 | 2.3 | 3 | 0.15 | 0.15 | 330 | 98 | 75 | 90 | 692 | 692zz | |
| 6 | 2.5 | 2.5 | 0.15 | 0.15 | 330 | 98 | 75 | 90 | MR62 | MR62zz | |
| 7 | 2.5 | 3 | 0.15 | 0.15 | 385 | 127 | 63 | 75 | MR72 | MR72zz | |
| 7 | 2.8 | 3.5 | 0.15 | 0.15 | 385 | 127 | 63 | 75 | 602 | 602zz | |
| 2.5 | 6 | 1.8 | 2.6 | 0.08 | 0.08 | 208 | 74 | 71 | 80 | 682X | 682Xzz |
| 7 | 2.5 | 3.5 | 0.15 | 0.15 | 385 | 127 | 63 | 75 | 692X | 692Xzz | |
| 8 | 2.5 | - | 0.2 | - | 560 | 179 | 60 | 67 | MR82X | - | |
| 8 | 2.8 | 4 | 0.15 | 0.15 | 550 | 175 | 60 | 71 | 602X | 602Xzz | |
| 6 | 2 | 2.5 | 0.1 | 0.1 | 208 | 74 | 71 | 80 | MR63 | MR63zz | |
| 3 | 7 | 2 | 3 | 0.1 | 0.1 | 310 | 111 | 63 | 75 | 683 | 683zz |
| 8 | 2.5 | - | 0.15 | - | 560 | 179 | 60 | 67 | MR83 | MR83zz | |
| 8 | 3 | 4 | 0.15 | 0.15 | 560 | 179 | 60 | 67 | 693 | 693zz | |
| 9 | 2.5 | 4 | 0.2 | 0.15 | 570 | 187 | 56 | 67 | MR93 | MR93zz | |
| 9 | 3 | - | 0.15 | - | 570 | 187 | 56 | 67 | 603 | 603zz | |
| 10 | 4 | 4 | 0.15 | 0.15 | 630 | 218 | 50 | 60 | 623 | 623zz | |
| 13 | 5 | 5 | 0.2 | 0.2 | 1300 | 485 | 40 | 48 | 633 | 633zz | |
| 4 | 7 | 2 | 2.5 | 0.1 | 0.1 | 310 | 115 | 60 | 67 | MR74 | MR74zz |
| 8 | 2 | 3 | 0.15 | 0.1 | 395 | 139 | 56 | 67 | MR84 | MR84zz | |
| 9 | 2.5 | 4 | 0.1 | 0.1 | 640 | 225 | 53 | 63 | 684 | 684zz | |
| 10 | 3 | 4 | 0.2 | 0.15 | 585 | 204 | 48 | 56 | MR104 | MR104zz | |
| 11 | 4 | 4 | 0.15 | 0.15 | 960 | 345 | 48 | 56 | 694 | 694zz | |
| 12 | 4 | 4 | 0.2 | 0.2 | 960 | 345 | 48 | 56 | 604 | 604zz | |
| 13 | 5 | 5 | 0.2 | 0.2 | 1300 | 485 | 40 | 48 | 624 | 624zz | |
| 16 | 5 | 5 | 0.3 | 0.3 | 1730 | 670 | 36 | 43 | 634 | 634zz | |
| 5 | 8 | 2 | 2.5 | 0.1 | 0.1 | 310 | 120 | 56 | 63 | MR85 | MR85zz |
| 9 | 2.5 | 3 | 0.15 | 0.15 | 430 | 168 | 50 | 60 | MR95 | MR95zz | |
| 10 | 3 | 4 | 0.15 | 0.15 | 430 | 168 | 50 | 60 | MR105 | MR105zz | |
| 11 | - | 4 | 0.15 | 0.15 | 716 | 282 | 45 | 53 | MR115 | MR115zz | |
| 11 | 3 | 5 | 0.15 | 0.15 | 715 | 281 | 45 | 53 | 685 | 685zz | |
| 13 | 4 | 4 | 0.2 | 0.2 | 1080 | 430 | 43 | 50 | 695 | 695zz | |
| 14 | 5 | 5 | 0.2 | 0.2 | 1330 | 505 | 40 | 50 | 605 | 605zz | |
| 16 | 5 | 5 | 0.3 | 0.3 | 1730 | 670 | 36 | 43 | 625 | 625zz | |
| 19 | 6 | 6 | 0.3 | 0.3 | 2340 | 885 | 32 | 40 | 635 | 635zz | |
| 6 | 10 | 2.5 | 3 | 0.15 | 0.1 | 495 | 218 | 45 | 53 | MR106 | MR106zz |
| 12 | 3 | 4 | 0.2 | 0.15 | 715 | 292 | 43 | 50 | MR126 | MR126zz | |
| 13 | 3.5 | 5 | 0.15 | 0.15 | 1080 | 440 | 40 | 50 | 686 | 686zz | |
| 15 | 5 | 5 | 0.2 | 0.2 | 1730 | 670 | 40 | 45 | 696 | 696zz | |
| 17 | 6 | 6 | 0.3 | 0.3 | 2260 | 835 | 38 | 45 | 606 | 606zz | |
| 19 | 6 | 6 | 0.3 | 0.3 | 2340 | 885 | 32 | 40 | 626 | 626zz | |
| 22 | 7 | 7 | 0.3 | 0.3 | 3300 | 1370 | 30 | 36 | 636 | 636zz | |
| 7 | 11 | 2.5 | 3 | 0.15 | 0.1 | 455 | 201 | 43 | 50 | MR117 | MR117zz |
| 13 | 3 | 4 | 0.2 | 0.15 | 540 | 276 | 40 | 48 | MR137 | MR137zz | |
| 14 | 3.5 | 5 | 0.15 | 0.15 | 1170 | 510 | 40 | 50 | 687 | 687zz | |
| 17 | 5 | 5 | 0.3 | 0.3 | 1610 | 710 | 36 | 43 | 697 | 697zz | |
| 19 | 6 | 6 | 0.3 | 0.3 | 2340 | 885 | 36 | 43 | 607 | 607zz | |
| 22 | 7 | 7 | 0.3 | 0.3 | 3300 | 1370 | 30 | 36 | 627 | 627zz | |
| 26 | 9 | 9 | 0.3 | 0.3 | 4050 | 1620 | 28 | 34 | 637 | 637zz | |
| 8 | 12 | 2.5 | 3.5 | 0.15 | 0.1 | 545 | 275 | 40 | 48 | MR128 | MR128zz |
| 14 | 3.5 | 4 | 0.2 | 0.15 | 820 | 385 | 38 | 45 | MR148 | MR | |
| 16 | 4 | 5 | 0.2 | 0.2 | 1260 | 590 | 36 | 43 | 688 | 688zz | |
| 19 | 6 | 6 | 0.3 | 0.3 | 2240 | 910 | 36 | 43 | 698 | 698zz | |
| 22 | 7 | 7 | 0.3 | 0.3 | 3300 | 1370 | 34 | 40 | 608 | 608zz | |
| 24 | 8 | 8 | 0.3 | 0.3 | 3350 | 1430 | 28 | 34 | 628 | 628zz | |
| 28 | 9 | 9 | 0.3 | 0.3 | 4550 | 1970 | 28 | 34 | 638 | 638zz | |
| 9 | 14 | 3 | 4.5 | 0.3 | 0.3 | 919 | 468 | 36 | 42 | 679 | 679zz |
| 17 | 4 | 5 | 0.2 | 0.2 | 1330 | 665 | 36 | 43 | 689 | 689zz | |
| 20 | 6 | 6 | 0.3 | 0.3 | 1720 | 840 | 34 | 40 | 699 | 699zz | |
| 24 | 7 | 7 | 0.3 | 0.3 | 3350 | 1430 | 32 | 38 | 609 | 609zz | |
| 26 | 8 | 8 | 0.3 | 0.3 | 4550 | 1970 | 28 | 34 | 629 | 629zz | |
| 30 | 10 | 10 | 0.6 | 0.6 | 5100 | 2390 | 24 | 30 | 639 | 639zz | |
Obtain Certificate / 证书:
About US / 关于我们

宁波轴心国际贸易有限公司成立于2025年,总部位于中国东部沿海开放城市宁波,专注轴承及五金配件领域的技术开发与全球销售。依托母公司雄厚的制造基础——12000㎡现代化生产厂房、70+自动化产线、100+专业技术团队,10+年精密制造经验,并通过ISO/RoHS/CE认证,产品广泛应用于家电、食品机械、健身器材、电动工具、机动车辆、医用器械 企业核心优势:
| Model(型号 / Modelo): | 694 |
| Shield(防尘盖 / Tampa de Proteção / Tampa Antipó): | ZZ |
| Precision Rating(精度等级 / Classe de Precisão / Grau de Precisão): | P6 |
| Z standard(国标振动噪音 / Ruído e Vibração - Padrão Nacional (GB) ): | Z3 |
| V standard(行标振动噪音 / Ruído e Vibração - Padrão Setorial (JB) ): | V1 |
| Clearance(游隙 / Folga Interna / Jogo Radial): | C0 |
| d(内径 / Diâmetro Interno): | 4 |
| D(外径 / Diâmetro Externo): | 11 |
| B(高 / Altura / Espessura): | 4 |
| Material(材料 / Material): | GCr15SiMn高碳铬钢 |
| Lubrication(润滑方式定制 / Personalização do Método de Lubrificação): | 联系客服Contact Customer Service |
| r(倒角 / Chanfro / Arredondamento ): | 0.15 |
| Cr (N) Basic Dynamic(基本动负荷 / Capacidade de Carga Dinâmica Básica): | 960 |
| Cor (N) Basic Dynamic(基本静负荷 / Capacidade de Carga Estática Básica): | 345 |
| Limiting Speed Grase(极限转速润滑脂 / Velocidade Limite (Graxa))*1000rpm: | 48 |
| Limiting Speed Oil(极限转速润滑剂 / Velocidade Limite (Lubrificante) )*1000rpm: | 56 |
| Patents: | True |
| Standard Type: | Standard parts |