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Low Noise Sealed Mini Bearing for Electric Toothbrushes 2.
US$0.20-20.00
10 Pieces
Product specifications
693
Sample price:US$10.00/piece.Request sample
Product profile
Customization
AvailableHigh Speed Spec
60,000 Rpm Limiting SpeedSealed 2RS Design
Maintenance-Free OperationModel NO.
693Silent & Compact
Z1-Z4 Low Noise Level, Ultra-Compact 3X8X4mmBearing Material
Chrome Steel SAE-52100Cage Material
Stamped Steel CageSeal Type
2RS (Double Rubber Sealed), Zz, Open AvailableRadial Clearance
Mc3 (Standard), C0/C3/C4/C5 AvailableDynamic Load Capacity
580n (107 Lbf)Static Load Capacity
180n (32 Lbf)Limiting Speed
60,000 Rpm (Grease Lubrication)Precision Grade
ABEC-1 (P0), P6, P5, P4 OptionalVibration Level
Z1, Z2, Z3, Z4Operating Temperature
-30°C to +110°CLubrication
Pre-Lubricated with Food Grade GreaseApplications
Electric Toothbrush, Beauty Equipment, Hair DryerTransport Package
Industrial PackingSpecification
3mm×8mm×4mmTrademark
WelinkOrigin
Fujian, ChinaHS Code
84821020Production Capacity
2000000/MonthlyKey features
Ultra-High Speed Performance: 60,000 RPM limiting speed ensures smooth operation in high-speed miniature motors, delivering 2x faster rotational capability compared to standard miniature bearings.
Precision Engineered for Quiet Operation: ABEC-1/P0 precision with Z1-Z4 vibration tolerance reduces noise by 40% in electric toothbrushes and beauty equipment, ensuring whisper-quiet user experience.
Premium Chrome Steel Construction: Made from SAE-52100 chrome steel with stamped steel cage, providing 580N dynamic load capacity and exceptional durability in compact 3x8x4mm design.
Double Rubber Seal Protection: 2RS sealed design effectively blocks dust and moisture while retaining lubrication, extending service life by 50% in portable vacuum cleaners and dental equipment.
Ultra-Compact Size for Space-Constrained Designs: At just 3mm bore and 8mm OD, this miniature bearing enables sleek product designs for smart devices, drones, and handheld beauty tools without comprom
Company profile
Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2010-12-01Nearest Port: Guangzhou, Xiamen, ShanghaiAverage Response Time: ≤2.30hTerms 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 are the exact specifications of 693-2RS bearing?
A:
The 693-2RS bearing measures 3mm (bore) * 8mm (outer diameter) * 4mm (width). It's made from premium chrome steel SAE-52100 with stamped steel cage, double rubber seals (2RS), and offers a limiting speed of 60,000 RPM. The dynamic load rating is 580N (107 lbf) and static load is 180N (32 lbf), making it ideal for electric toothbrushes and beauty equipment.
Q:What is the difference between 693-2RS, 693-ZZ, and 693 Open bearings?
A:
693-2RS features double rubber seals providing superior protection against dust, moisture, and contaminants. 693-ZZ uses metal shields which allow higher speeds but less contamination protection. 693 Open has no seals for maximum speed but requires external protection. All three share the same 3x8x4mm dimensions, with 2RS being the most versatile for consumer electronics.
Q:What applications are suitable for 693 miniature bearing?
A:
693-2RS bearings are widely used in electric toothbrushes, beauty equipment (hair dryers, facial cleansing devices), portable vacuum cleaners, dental handpieces, PC cooling fans, drones, RC models, small smart devices, precision instruments, and miniature motors where compact size and high-speed performance are critical.
Q:What precision grades and clearance options are available?
A:
We offer 693 bearings in multiple precision grades: ABEC-1 (ISO P0) as standard, with optional upgrades to ABEC-3 (P6), ABEC-5 (P5), and ABEC-7 (P4). Standard radial clearance is MC3, with C0, C3, C4, and C5 options available. Vibration levels range from Z1 to Z4 to meet different noise requirements.
Q:Do you provide certifications and quality assurance for 693 bearings?
A:
Yes, Welink Bearing is ISO 9001:2015 certified manufacturer. Our 693-2RS bearings comply with international standards and come with CE certification and RoHS compliance. We provide material certificates, inspection reports, and full traceability documentation for quality assurance and regulatory compliance.
Send Inquiry
*To:Xiamen Dreampower Intelligent Technology Co., Ltd.
Xiamen Dreampower Intelligent Technology Co., Ltd.*Content:
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