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Durable 627, 628, 629 Precision Bearings for Generators
US$0.10-0.80
10 Pieces
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableItem Model
627zz / 627-2RSBearing Material
Gcr15 Chrome SteelModel NO.
627Cage Material
Steel Stamping / NylonPrecision Rating
ABEC-5 (P5) / ABEC-3 (P6)Vibration & Noise
Z3V3 / Z2V2Internal Clearance
C3 / C0Limiting Speed
Grease: 30,000 Rpm / Oil: 36,000 RpmDynamic Load Rating (Cr)
3.3 kNStatic Load Rating (Cor)
1.37 kNApplication
Small Generators, Micro Motors, Power ToolsCertifications
ISO9001:2015, RoHS, CETransport Package
Bulk PackingSpecification
7mm*22mm*7mmTrademark
WelinkOrigin
Fujian, ChinaHS Code
848210Production Capacity
2000000pieces/YearKey features
Manufactured to rigorous Z3V3 vibration standards, ensuring stable operation at up to 36,000 RPM, which significantly reduces noise and friction in small generators.
Forged from high-hardness bearing steel (HRC 60-65) with superior load capacities (Cr: 3.3 kN), delivering a 30% longer operational life than standard carbon steel alternatives.
Engineered with strict ABEC-5 (P5) tolerances to ensure seamless integration and a perfect drop-in replacement for generators and power tools, minimizing assembly time.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2010-12-01Nearest Port: Guangzhou, Xiamen, ShanghaiAverage Response Time: ≤1.42hTerms 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 materials do you use for your 627ZZ small generator bearings, and can they be customized?
A:
As an integrated manufacturer (Welink Bearing), we standardly use high-grade GCr15 chrome steel for 627ZZ bearings to handle high rotational speeds. We fully support OEM customization, including C3 internal clearances for better heat dissipation, specialized high-temperature greases, and custom 2RS rubber seals to match your generator's exact specifications.
Q:What are your shipping options and lead times for bulk bearing orders to Europe or North America?
A:
We keep a robust inventory of standard 7x22x7mm 627 bearings to ensure fast processing within 3-7 days. For high-volume wholesale orders, our production lead time is 15-20 days. We provide flexible DDP, CIF, and FOB shipping terms to major ports across North America and the EU, optimizing both cost and delivery speed.
Q:Can we request 627 bearing samples to verify the ABEC-5 precision and Z3V3 noise levels before bulk purchase?
A:
Absolutely. We highly encourage sample testing. We provide free samples of our precision radial bearings so your engineering team can strictly verify the 7x22x7mm dimensions, load ratings (Cr: 3.3 kN), and the low-noise performance that is critical for high-efficiency small generators.
Send Inquiry
*To:
Xiamen Dreampower Intelligent Technology Co., Ltd.
Xiamen Dreampower Intelligent Technology Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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