OEM/ODM F634 ZZ Miniature Deep Groove Ball Bearing 4*16*5mm Double Metal Shields

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2/13/2026

About Us

Ningbo Zhouxin International Trade Co., Ltd. was established in 2025, headquartered in Ningbo, an open coastal city in eastern China, focusing on technology development and global sales in the field of bearings and hardware accessories. The company relies on the strong manufacturing foundation of its parent company ------ 12,000 ㎡ modern production plant, 70+ automated production lines, 100+ professional technical team, 10+ years of precision manufacturing experience, and ISO/RoHS/CE certification. Products are widely used in fields such as household appliances, food machinery, fitness equipment, power tools, motor vehicles, medical devices, and robotics.Core Corporate Advantages: ▸ Precision & Stability Genes: 22 full-chain quality inspection processes strictly control tolerances to ±0.01mm. ▸ Customized Services: ODM/OEM flexible production. ▸ Resource Synergy Network: Sharing parent company's large-scale intelligent production lines, ensuring delivery of tens of millions of orders.

F634 ZZ Miniature Deep Groove Ball Bearing 4165mm Double Metal Shields

10 - 999 pieces $0.30
1000 - 4999 pieces $0.25
>=5000 pieces $0.20

The F634 ZZ bearing is a miniature deep groove ball bearing primarily used in precision instruments, small motors, office automation equipment, medical devices, model toys, optical equipment, measuring instruments, and various small drive systems. Its compact design and reliable performance make it an ideal choice for miniaturized equipment requiring high precision and low-noise operation.

Model: F634 ZZ

Size: 4*16*5

Material: GCr15

Precision Rating: P5

Lubrication: Contact Customer Service

Customization Available: True

Lead Time: standard models shipped within 10 business days.

Payment Terms: 100% T/T, or 30% T/T in advance, 70% before delivery

Product structure:

This bearing features a standard miniature deep groove ball bearing structure with a bore diameter of 4mm, outer diameter of 16mm, and width (thickness) of 5mm. It is manufactured from high-quality high-carbon chromium steel (GCr15) and equipped with double-sided metal shields (indicated by the ZZ suffix), effectively preventing the ingress of dust and contaminants while retaining the pre-filled internal grease. The cage, typically made of steel or engineered plastic, ensures even ball distribution and stable operation.

Key performance features:

The F634 ZZ bearing offers high-speed rotation capability, low starting torque, and low operational friction, delivering smooth and quiet performance. The double metal shields provide good protection in non-extreme contamination environments, extending service life. The bearing can withstand moderate radial and axial loads, making it suitable for medium-duty applications. Its miniature size is ideal for space-constrained designs, and its standardized construction ensures interchangeability and ease of procurement.

Main application scenarios:

It is commonly used in small DC motors, fan motors, micro gearboxes, printer/scanner roller shafts, drone gimbal motors, precision speed governors, model car/aircraft drive components, laboratory instrument rotating parts, medical pump mechanisms, and camera focus mechanisms. It is suitable for precision mechatronic applications that require compact structure, light weight, low noise, and minimal maintenance.

Technical Specifications and Requirements:

Dimensional Standards: Conforms to ISO 15:2011 (Radial bearing dimensions) and relevant miniature bearing standards such as JIS B 1512.
Precision Class: Typically ABEC-1 (Normal class), with ABEC-3 (P6 class) precision available as an option.
Clearance: Standard is CN (Normal radial clearance). Options include C2 (Smaller clearance) or C3 (Larger clearance) upon request.
Lubrication: Pre-lubricated with lithium-based or synthetic grease suitable for general temperature ranges (-30℃ to +120℃). Lubricant can be customized for special requirements.
Load & Speed: Dynamic load rating approximately 1.2 kN, static load rating approximately 0.5 kN. Limiting speed (grease lubricated) can exceed 30,000 rpm, depending on operating conditions.
Installation & Maintenance: Installation via mechanical or heating methods is recommended; avoid direct hammering. The shielded design typically requires no relubrication in clean environments, but supplemental lubrication may be considered for extreme conditions.

Flange miniature series bearing inner diameter 2-12mm / 法兰微型系列轴承内径2-12mm

内径Inner Diameter	外径Outside Diameter	法兰外径 Flange Outside Diameter		高度 Height		法兰宽度 Flange Width		倒角 Chamfer		基本动负荷	基本静负荷	极限转速		型号 Model
		开放型	防尘盖型	开放型	防尘盖型	开放型	防尘盖型	(r)		基本动负荷	基本静负荷	Limiting Speed		(Reference)
		(D)	(B1)	(D)	(B1)	(D)	(B1)	开放型	防尘盖型	Cr(N)Basic Dynamic	Cor(N)Basic Static	润滑脂 (Grase )	润滑剂 (Oil)	开放型	防尘盖型
(D)	(D)	(Open)	(Shield)	(Open)	(Shield)	(Open)	(Shield)	(Open)	(Shield)	Cr(N)Basic Dynamic	Cor(N)Basic Static	*1000rpm		(Open)	(Shield)
2	5	6.1	6.1	1.5	2.3	0.5	0.6	0.08	0.08	169	50	85	100	F682	F682zz
	5	6.2	6.2	2	2.5	0.6	0.6	0.1	0.1	169	50	85	100	MF52	MF52zz
	6	7.5	7.5	2.3	3	0.6	0.8	0.15	0.15	330	99	75	90	F692	F692zz
	6	7.2	7.2	2.5	一	0.6		0.15		330	98	75	90	MF62	一
	7	8.2	8.2	2.5	3	0.6	0.6	0.15	0.15	385	127	63	75	MF72	MF72zz
	7	8.5	8.5	2.8	3.5	0.7	0.9	0.15	0.15	385	127	63	75	F602	F602zz
2.5	6	7.1	7.1	1.8	2.6	0.5	0.8	0.08	0.08	208	74	71	80	F682X	E682Xzz
	7	8.5	8.5	2.5	3.5	0.7	0.9	0.15	0.15	285	127	63	75	F692X	F692Xzz
	8	9.2	9.2	一	2.5	一	0.6	一	0.2	560	179	60	67	MF82X	一
	8	9.5	9.5	2.8	4	0.7	0.9	0.15	0.15	550	175	60	71	F602	F602Xzz
3	6	7.2	7.2	2	2.5	0.6	0.6	0.1	0.1	208	74	71	80	MF63	MF63zz
	7	8.1	8.1	2	3	0.5	0.8	0.1	0.1	310	111	63	75	F683	F683zz
	8	9.2	9.2	一	2.5	一	0.6		0.15	560	179	60	67	MF83	MF83zz
	8	9.5	9.5	3	4	0.7	0.9	0.15	0.15	560	179	60	67	F693	F693zz
	9	10.2	10.6	2.5	4	0.6	0.8	0.2	0.15	570	187	56	67	MF93	MF93zz
	9	10.5	10.5		3	一	0.7		0.15	570	187	56	67	F603	F603zz
	10	11.5	11.5	4	4	1	1	0.15	0.15	630	218	50	60	F623	F623zz
4	7	8.2	8.2	2	2.5	0.6	0.6	0.1	0.1	310	115	60	67	MF74	MF74zz
	8	9.2	9.2	2	3	0.6	0.6	0.15	0.1	395	139	56	67	MF84	MF84zz
	9	10.3	10.3	2.5	4	0.6	1	0.1	0.1	640	225	53	63	F684	F684zz
	10	11.2	11.6	3	4	0.6	0.8	0.2	0.15	585	204	48	56	MF104	MF104zz
	11	12.5	12.5	4	4	1	1	0.15	0.15	960	345	48	56	F694	F694zz
	12	13.5	13.5	4	4	1	1	0.2	0.2	960	345	48	56	F604	F604zz
	13	15	15	5	5	1	1	0.2	0.2	1300	485	40	48	F624	F624zz
	16	18	18	5	5	1	1	0.3	0.3	1730	670	36	43	F634	F634zz
5	8	9.2	9.2	2	2.5	0.6	0.6	0.1	0.1	310	120	53	63	MF85	MF85zz
	9	10.2	10.2	2.5	3	0.6	0.6	0.15	0.15	430	168	50	60	MF95	MF95zz
	10	11.2	11.6	3	4	0.6	0.8	0.15	0.15	430	168	b	60	MF105	MF105zz
	11	12.5	12.5		4	0.8	1	0.15	0.15	716	282	45	53	MF115	MF115zz
	11	12.5	12.5	3	5	0.8	1	0.15	0.15	715	281	45	53	F685	F685zz
	13	15	15	4	4	1	1	0.2	0.2	1080	430	43	50	F695	F695zz
	14	16	16	5	5	1	1	0.2	0.2	1330	505	40	50	F605	F605zz
	16	18	18	5	5	1	1	0.3	0.3	1730	670	36	43	F625	F625zz
	19	22	22	6	6	1.5	1.5	0.3	0.3	2340	885	32	40	F635	F635zz
6	10	11.2	11.2	2.5	3	0.6	0.6	0.15	0.1	495	218	45	53	MF106	MF106zz
	12	13.2	13.6	3	4	0.6	0.8	0.2	0.15	715	292	43	50	MF126	MF126zz
	13	15	15	3.5	5	1	1.1	0.15	0.15	1080	440	40	50	F686	F686zz
	15	17	17	5	5	1.2	1.2	0.2	0.2	1730	670	40	45	F696	F696zz
	17	19	19	6	6	1.2	1.2	0.3	0.3	2260	835	38	45	F606	F606zz
	19	22	22	6	6	1.5	1.5	0.3	0.3	2340	885	32	40	F626	F626zz
7	11	12.2	12.2	2.5	3	0.6	0.6	0.15	0.1	455	201	43	50	MF117	MF117zz
	13	14.2	14.6	3	4	0.6	0.8	0.2	0.15	540	276	40	48	MF137	MF137zz
	14	16	16	3.5	5	1	1.1	0.15	0.15	1170	510	40	50	F687	F687zz
	17	19	19	5	5	1.2	1.2	0.3	0.3	1610	715	36	43	F697	F697zz
	19	22	22	6	6	1.5	1.5	0.3	0.3	2340	885	36	43	F607	F607zz
	22	25	25	7		1.5	1.5	0.3	0.3	3300	1370	30	36	F627	F627zz
8	12	13.2	13.6	2.5	3.5	0.6	0.8	0.15	0.1	545	275	40	48	MF128	MF128zz
	14	15.6	15.6	3.5	4	0.8	0.8	0.2	0.15	820	385	38	45	MF148	MF148zz
	16	18	18	4	5	1	1.1	0.2	0.2	1260	590	36	43	F688	F688zz
	19	22	22	6	6	1.5	1.5	0.3	0.3	2240	910	36	43	F698	F698zz
	22	25	25	7	7	1.5	1.5	0.3	0.3	3300	1370	34	40	F608	F608zz
9	17	19	19	4	5	1	1.1	0.2	0.2	1330	665	36	43	F689	F689zz
9	20	23	23	6	6	1.5	1.5	0.3	0.3	1720	840	34	40	F699	F699zz
10	15	16.5	16.5	3	4	0.8	0.8	0.3	0.3	850	430	14	16	F6700	F6700zz
	19	21	21	5	5	1	1	0.3	0.3	1700	800	35	42	F6800	F6800zz
	22	25	25	6	6	1.5	1.5	0.3	0.3	2611	1223	31	40	F6900	F6900zz
12	18	19.5	19.5	4	4	0.8	0.8	0.3	0.3	922	512	12	14	F6701	F6701zz
	21	23	23	5	5	0.8	1	0.3	0.3	1911	1041	33	39	F6801	F6801zz
	24	26.5	26.5	6	6	1	1.5	0.3	0.3	2831	1411	31	36	F6901	F6901zz

Obtain Certificate / 证书:

About US / 关于我们

> Precision & Stability Genes: 22 full-chain quality inspection processes strictly control tolerances to ±0.01mm.

> Customized Services: ODM/OEM flexible production.

> Resource Synergy Network: Sharing parent company's large-scale intelligent production lines, ensuring delivery of tens of millions of orders.

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：

> 精密稳定基因：22道全链质检工序严控公差±0.01mm

> 定制化服务：ODM/OEM柔性

> 资源协同网络：共享母公司规模化智能产线，保障千万级

Contact 立即联系

Model（型号 / Modelo）:	F634
Shield（防尘盖 / Tampa de Proteção / Tampa Antipó）:	ZZ
Precision Rating（精度等级 / Classe de Precisão / Grau de Precisão）:	P5
Z standard（国标振动噪音 / Ruído e Vibração - Padrão Nacional (GB) ）:	Z2
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）:	16
B1（高B1 / Altura / Espessura）:	5
Material（材料 / Material）:	GCr15铬钢
Lubrication（润滑方式定制 / Personalização do Método de Lubrificação）:	联系客服Contact Customer Service
Flange Outside Diameter B1（法兰外径B1 / Diâmetro Externo do Flange）:	18
Flange Width B1（法兰宽度B1 / Largura do Flange）:	1
r（倒角 / Chanfro / Arredondamento ）:	0.3
Cr (N) Basic Dynamic（基本动负荷 / Capacidade de Carga Dinâmica Básica）:	1730
Cor (N) Basic Staticc（基本静负荷 / Capacidade de Carga Estática Básica）:	670
Limiting Speed Grase（极限转速润滑脂 / Velocidade Limite (Graxa)）*1000rpm:	36
Limiting Speed Oil（极限转速润滑剂 / Velocidade Limite (Lubrificante) ）*1000rpm:	43
Standard Type:	Standard parts