NTN NACHI 6860 6864 6868 Deep Groove Engine Ball Bearing

Product Specifications

Application Suitability

Struggling with Deep Groove Ball Bearing Reliability? 6860, 6864, 6868 Models Deliver Consistent Performance

Many buyers face the frustration of bearing failures due to incorrect precision ratings or poor material quality, leading to unexpected downtime. Sourcing multiple brands and models from different suppliers only adds complexity to procurement. When dealing with large-diameter bearings like 6860, 6864, and 6868, finding a supplier that balances inventory availability with engineering support becomes critical.

Engineered for Long Life in Heavy-Duty Applications

Our deep groove ball bearings address these challenges with ISO 9001-certified production processes and strict material testing. The 6860 (300x380x38mm), 6864 (320x400x38mm), and 6868 (340x420x38mm) models feature bearing steel construction that ensures high load capacity and resistance to wear. With precision ratings from P0 to P4, these bearings meet the demands of both general industrial machinery and precision equipment, supported by rich stock availability for quick delivery.

Optimal Performance in High-Speed, Low-Noise Environments

Designed for radial load applications, these single-row deep groove ball bearings excel in high-speed operations where low noise is essential. The 0° contact angle and non-aligning design make them ideal for rotating shafts with minimal misalignment, such as those found in industrial fans and gearboxes. Their unseparated structure ensures easy installation and maintenance, while clearance options (C0/C2/C3) allow customization for specific operating conditions—whether tight tolerance for precision machines or increased clearance for thermal expansion in steel mills.

Key Engineering Features That Impact Performance

The bearing steel material provides a surface hardness that resists deformation under heavy loads, directly contributing to the long life specified in their design. Precision rating options cater to different application needs: P0 for general use balances cost and performance, while P4 is suitable for high-precision equipment where rotational accuracy is critical. Lubrication flexibility (grease or oil) allows adaptation to operating temperatures and speeds, with grease being preferred for reduced maintenance in enclosed systems and oil for high-speed applications requiring continuous lubrication. The clearances (C2 for tight fits, C3 for thermal expansion) prevent premature failure by accommodating shaft and housing tolerances.

Why Choosing the Right Bearing Reduces Total Cost

Selecting a low-quality bearing may save initial costs but often leads to higher expenses from frequent replacements, downtime, and potential damage to adjacent components. These deep groove ball bearings, with their long life and high-speed capability, minimize maintenance intervals and extend equipment uptime. Following ISO 281 fatigue life standards, they are engineered to withstand rated loads over extended periods, reducing the total cost of ownership compared to inferior alternatives. Proper clearance selection further prevents overheating and premature wear, ensuring optimal performance throughout the bearing’s lifespan.

Quality You Can Rely On

Packaging & Shipping

• Packaged in cartons on pallets to ensure safe transportation
• Ready for immediate shipment from stock
• Flexible shipping options including express courier, air freight, and sea freight
• Low minimum order quantity supported, accommodating both small and large volume purchases

Get a Quote for 6860, 6864, 6868 Deep Groove Ball Bearings

Whether you need a specific model, brand, or custom specifications, provide us with the bearing model, dimensions (d x D x B), quantity, and destination. Our team will promptly confirm availability and pricing, helping you secure the bearings you need without unnecessary delays. We handle all major brands and can source hard-to-find models, ensuring a single point of contact for your bearing procurement.

Frequently Asked Questions