NTN 6307 Deep Groove Ball Bearing 35x80x21mm ZZ 2RS for Automotive Motors with Traceable OEM Supply

Product Specifications

Application Industries

Prevent Costly Downtime with Genuine NTN 6307 Deep Groove Ball Bearings

Industrial buyers know the frustration of unexpected equipment failure—especially when a counterfeit bearing causes motor breakdowns, halting production lines and eroding profits. Sourcing reliable bearings often means juggling multiple suppliers, each with inconsistent quality standards and delivery delays. For automotive motor manufacturers and maintenance teams, finding a 35x80x21mm bearing that balances performance and cost while meeting OEM specifications can feel like navigating a maze.

Genuine NTN 6307 Bearings: In Stock and Traceable

As an official NTN distributor, we eliminate these headaches by offering the NTN 6307 deep groove ball bearing with complete supply chain traceability. This 35x80x21mm bearing, available in ZZ (metal shielded) and 2RS (rubber sealed) variants, is engineered for automotive motors and general machinery where radial load capacity and high rotational precision are critical. Our ISO 9001 quality control system ensures every unit meets NTN’s strict standards, while our centralized inventory means hot-selling models like the NTN 6307 are ready for immediate dispatch.

Engineered for High-Performance Motor Applications

The NTN 6307 bearing excels in applications requiring smooth operation under moderate to high speeds, such as automotive electric motors, small pumps, and industrial fans. Its single-row deep groove design delivers reliable radial load handling, while options for ZZ or 2RS seals provide flexibility for environments with varying levels of dust and moisture. Whether used in continuous-duty OEM production or emergency maintenance, this bearing’s vibration class (Z1V1 to Z3V3) and precision ratings (P0 to P4) ensure consistent performance and extended service life.

Technical Details That Drive Reliability

Three key specifications define the NTN 6307’s performance: its precision rating, seal type, and vibration control. Precision classes from P0 (standard) to P4 (high precision) allow matching to application requirements—P5/P4 grades reduce runout for high-speed motors, minimizing noise and energy loss. The ZZ metal shields offer robust protection against contaminants while maintaining low friction, ideal for dry environments, while 2RS rubber seals provide superior moisture resistance for outdoor or humid applications. Vibration grades Z2V2 and Z3V3 further enhance stability in sensitive equipment, preventing premature wear and extending maintenance intervals.

Why Authenticity Matters: The Hidden Cost of Fakes

Counterfeit bearings may seem like a budget-friendly option, but they often fail within months, leading to motor damage, production downtime, and safety risks. A single bearing failure in an automotive assembly line can cost thousands in lost productivity, not to mention repair expenses. Authentic NTN 6307 bearings, by contrast, are manufactured with high-grade bearing steel and undergo rigorous testing, ensuring they meet dynamic load requirements and temperature tolerances. Our traceable supply chain—backed by NTN’s official authorization—guarantees you receive genuine components that deliver predictable performance and reduce total cost of ownership.

Why 1,100+ Clients Choose Our Bearing Solutions

Packaging & Shipping

• Original NTN packaging with product identification labels and batch traceability information
• Carton pallet packaging for bulk orders, ensuring secure transport and storage
• Expedited delivery options for urgent maintenance needs
• Global logistics partners including DHL, FedEx, and regional carriers for reliable door-to-door service
• 1 unit minimum order quantity, supporting both small-scale repairs and large OEM production runs

Get Your NTN 6307 Bearing Quote Today

Don’t let bearing issues slow down your operations. Whether you need ZZ or 2RS seals, P0 or P5 precision, we have the NTN 6307 bearing in stock and ready to ship. Send us your exact requirements—including quantity and application details—and our team will provide a comprehensive quote within 24 hours, complete with technical specifications and delivery timelines.

Frequently Asked Questions