ISO Certified 674 Miniature Thin Section Ball Bearing for Precision Instruments

Name: ISO Certified 674 Miniature Thin Section Ball Bearing for Precision Instruments
Brand: Xiamen Dreampower Intelligent Technology Co., Ltd.
SKU: 2280165115

Fujian, ChinaXiamen Dreampower Intelligent Technology Co., Ltd.

US$0.10-5.00

10 Pieces

Product specifications

6910

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Model Number

674 (Open: 4X7X2mm) / 674-Zz / 674-2RS

Material

Gcr15 Chrome Steel / Stainless Steel (Ss440c)

Model NO.

674

Precision Rating

P0(ABEC-1) / P6(ABEC-3) / P5(ABEC-5)

Clearance

C0 (Cn) / C2 / C3

Vibration & Noise

Z1V1 / Z2V2 / Z3V3 / Z4V4

Limiting Speed

Grease: ~50,000 Rpm Oil: ~60,000 Rpm

Dynamic Load Rating Cr

258 N

Static Load Rating Cor

89 N

Cage Material

Steel Stamping / Brass

Seal Type

Zz (Metal Shields) / 2RS (Rubber Seals) / Open

Application

Micro Motors, Medical Instruments, Drones

Transport Package

Industrial Packing

Specification

4MM*7MM*2.5MM

Trademark

Welink

Origin

Fujian, China

HS Code

84821020

Production Capacity

2000000/Monthly

Key features

Ultra-Compact 4x7x2.5mm Size: The micro thin-section design saves critical installation space, making it perfect for miniaturized robotics and precision instrumentation.

Up to 50,000 RPM Speed: Optimized internal geometry and premium low-friction grease allow ultra-high-speed operation, enhancing the efficiency of micro motors by 30%.

Zero-Defect Silent Operation: Stop worrying about motor jitter; our Z3V3 vibration-tested bearings ensure stable, whisper-quiet performance in sensitive medical devices.

Premium GCr15 Chrome Steel: Built with high-grade bearing steel (or optional Stainless Steel) to provide exceptional wear resistance, minimizing maintenance costs for your equipment.

ABEC-5 Superior Precision: Delivers significantly tighter tolerances than standard ABEC-1 bearings, guaranteeing unmatched rotational accuracy for high-end applications.

Company profile

Xiamen Dreampower Intelligent Technology Co., Ltd.

Fujian, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2010-12-01Nearest Port: Guangzhou, Xiamen, ShanghaiAverage Response Time: ≤3.70hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, DAP, DAT, FAS, CIP, CPT, FCA, Others

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier focused on bearings and power-transmission products. It offers broad customization and ODM services, but does not provide 3D software design, SDKs, or OEM services for popular brands, and reported no new products in the past year. ISO 9001 certification is stated. The supplier claims integrated R&D-production bases, automated equipment, measurement tools, and strict quality control, while finished products are checked by packing staff. Export activity is reported at 90% of sales, with self-operated import/export rights and one year of export experience. However, reported operating revenue, costs, gross profit, and operating profit for the stated periods are zero, and there is no overseas warehouse, overseas showroom, overseas agent or branch, or offline trade-show participation. After-sales capability is not sufficiently documented.

Supplier typeThe supplier is explicitly identified as a professional technical supplier and its business scope includes bearing manufacturing, bearing sales, and high-speed precision heavy-duty bearings. This supports classification as a specialized bearing and industrial power-transmission supplier.

CertificationsThe supplier states that it holds an ISO 9001 supplier management-system certification. The provided information does not include the certificate number, issuing body, or validity period, but it is explicit evidence of certification holding.

After-Sales capabilityThe supplier has no in-stock service capacity, overseas warehouse, overseas showroom, overseas agents or branches, and offers overseas services in zero countries. Service-capability assessment also lacks written procedures or followed records, so the available evidence does not demonstrate a robust after-sales network.

Financial creditThe stated financial records report zero operating revenue, operating costs, gross profit, and operating profit for the listed periods. These figures provide explicit negative evidence regarding reported financial performance and therefore raise a material financial-credibility concern.

Production capacityThe business scope explicitly includes bearing manufacturing, including high-speed precision heavy-duty bearings. The supplier also claims integrated R&D-production bases, automated equipment, precise measuring tools, skilled operators, and strict process quality control, although the provided information does not quantify production capacity.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. This is direct evidence of broad product customization capability, despite the absence of 3D software design services.

Product Q&A

Q:What makes the 674 miniature ball bearing suitable for instrumentation?

The 674 thin section bearing (4x7x2.5mm) is designed with an ultra-compact profile, low friction torque, and ABEC-5 high precision. This ensures smooth, vibration-free rotation, which is critical for precision medical instruments and aerospace devices.

Q:Can Welink Bearing customize the 674 bearing for high-speed micro motors?

Yes. As a direct manufacturer, we offer customized solutions for 674 bearings, including specific radial clearances (like C3), high-speed grease options (up to 50,000 RPM), and specialized cage materials to perfectly match your micro motor requirements.

Q:What are the differences between 674-ZZ, 674-2RS, and open type bearings?

The open 674 (4x7x2mm) is ideal for oil-lubricated enclosed spaces. The 674-ZZ (metal shields) offers low friction for high speeds, while the 674-2RS (rubber seals) provides maximum protection against dust and moisture. Both shielded and sealed versions have a 2.5mm width.

Q:Are your miniature deep groove ball bearings RoHS and REACH compliant?

Absolutely. All our bearings, including the 674 series, are manufactured from premium GCr15 steel or stainless steel and come with full ISO 9001:2015, RoHS, and REACH certifications, ensuring safe and compliant export to global markets.