Product Overview
The 608RS deep groove ball bearing is engineered for compact mechanical systems requiring stable rotational performance and reliable operation within limited installation spaces. Featuring standard dimensions of an 8 mm bore, 22 mm outside diameter, and 7 mm width, this single-row bearing provides a standardized solution for various industrial and consumer applications.
The design incorporates a double rubber sealed structure that protects internal components from external particles while retaining internal lubricant. Precision-machined raceways and an optimized deep groove geometry support smooth rotation and balanced radial load handling under continuous working conditions.
Product Features
Double Rubber Sealed Structure: Utilizes contact rubber seals on both sides to enhance lubricant retention and protect against dust intrusion, supporting consistent operational reliability.
Deep Groove Raceway Design: Features optimized internal geometry to accommodate radial loads effectively while maintaining low friction and smooth movement.
Compact Standard Dimensions: Engineered to precise 8x22x7 mm dimensions for seamless integration into small equipment and straightforward replacement processes.
Stable Rotational Performance: Utilizes precision-ground raceways and matched rolling elements to minimize vibration and ensure consistent performance during operation.
Technical Specifications
|
Item |
Specification |
|
Bearing Type |
Deep Groove Ball Bearing |
|
Model |
608RS |
|
Sealing Type |
Double Rubber Seal |
|
Bore Diameter |
8 mm |
|
Outside Diameter |
22 mm |
|
Width |
7 mm |
|
Rolling Element |
Steel Ball |
|
Standard Material |
Chrome Steel AISI52100 |
|
Cage Material |
Steel / Alternative Options |
|
Lubrication |
Grease Lubricated |
|
Precision Grade |
Standard / Custom Grades |
Material & Configuration Options
Chrome Steel AISI52100: Selected for general industrial applications requiring balanced mechanical strength, wear resistance, and optimized production efficiency.
Stainless Steel Options: Supplied in material grades such as SS420, SS440, SS304, and SS316L for environments requiring enhanced corrosion resistance.
Ceramic Hybrid Configuration: Combines ceramic rolling elements with steel rings to reduce overall weight, lower friction coefficients, and suit specialized operating conditions.
Custom Sealing and Lubrication: Configured with alternative seal materials and specific grease fills tailored to operational temperature and environmental demands.
Applications
Motion Equipment: Integrated into small wheel assemblies, sliding mechanisms, and compact linear movement systems.
Industrial Equipment: Utilized within small electric motors, automation components, transmission assemblies, and compact machinery.
Consumer and Precision Products: Applied in sports equipment, household mechanism assemblies, small rotating devices, and precision instruments.
Manufacturing Process
Material Inspection: Raw bearing steel undergoes incoming checks to verify chemical composition and material integrity before production begins.
Precision Machining: Advanced CNC equipment processes bearing rings to achieve strict dimensional accuracy and geometric stability.
Heat Treatment: Controlled thermal processing enhances the structural strength and hardness characteristics of the steel components.
Grinding and Raceway Finishing: Precision grinding operations refine raceway surfaces to ensure optimal contact profiles with rolling elements.
Assembly and Lubrication: Components are assembled under controlled conditions, followed by precise grease application and seal installation.
Final Inspection: Completed bearings undergo thorough dimensional verification and operational checks prior to packaging.
Quality Control & Testing
Material Traceability: Raw material documentation is maintained to track batches from initial receipt through final assembly.
Dimensional Verification: Critical parameters including bore diameter, outer diameter, and width are measured using calibrated instruments.
Performance Evaluation: Finished units are tested for rotational smoothness, operational consistency, and noise levels.
Compliance Verification: Manufacturing systems operate in accordance with ISO9001 and IATF16949 standards, supported by documentation including CE, SGS, RoHS, and MSDS.
OEM & Customization Service
Brand and Packaging Support: Offers private label manufacturing, custom box designs, and specialized labeling tailored to client requirements.
Dimensional Customization: Accommodates non-standard dimensions, unique tolerances, and specific geometric modifications based on technical drawings.
Material and Seal Adaptation: Provides specialized material selections and custom seal configurations suited for unique operating environments.
Engineering Consultation: Technical support is available to assist with bearing selection, load calculations, and application-specific configurations.
Production Capacity & Supply Capability
Facility Infrastructure: Operates within a large manufacturing plant featuring extensive workshop space equipped for high-volume output.
Advanced Equipment: Utilizes automated CNC machining centers, high-speed grinding lines, and precision assembly equipment.
Supply Reliability: Structured production planning supports consistent delivery schedules for both standard volume orders and customized projects.
Packaging & Logistics
Flexible Packaging Options: Available in individual protective boxes, industrial bulk packaging, or customized cartons based on client preference.
Export Protection: Utilizes secure packaging materials designed to protect precision components from moisture and transit damage.
Global Shipping Support: Coordinates efficient international logistics and door-to-door delivery services to streamline destination customs clearance.

Certifications & Compliance
Quality Management Systems: Production facilities adhere to internationally recognized ISO9001 and IATF16949 quality standards.
Regulatory Compliance: Products meet international directives including CE, SGS, and RoHS environmental compliance requirements, with full MSDS documentation available.
FAQ
Q: What is the difference between 608RS and 608ZZ bearings?
A: The 608RS utilizes rubber contact seals on both sides for superior protection against dust and moisture while retaining internal grease effectively, whereas 608ZZ features non-contact metal shields designed primarily for higher speed limits with lower frictional resistance.
Q: Can these bearings be customized for non-standard applications?
A: Yes, customizations include alternative stainless steel or ceramic materials, specialized internal clearances, custom seal designs, and unique dimensions based on provided engineering drawings or sample specifications.
Q: What is the standard material used in production?
A: The standard material is high-grade chrome steel AISI52100, chosen for its excellent wear resistance, high load-bearing capacity, and consistent fatigue life in general industrial environments.
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