Product Specifications
| Parameter |
Details |
| Model NO. |
618/670 |
| Rows Number |
Single |
| Load Direction |
Radial Bearing |
| Material |
Bearing Steel |
| Contact Angle |
0° |
| Specification |
670x820x69mm |
| Trademark |
NTN |
| Origin |
Germany Sweden Japan |
| HS Code |
8482102000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Gearboxes, Reducers |
| Heavy Manufacturing |
Rolling Mills, Extruders, Presses |
| Power Generation |
Generators, Turbines, Compressors |
| Mining & Construction |
Crushers, Conveyors, Excavator Components |
Minimize Downtime with Genuine 618/670 Deep Groove Ball Bearing
Equipment failures from substandard bearings cost manufacturers thousands in lost production each year. When critical machinery like gearboxes or rolling mills stop turning, every hour of downtime erodes profits. Sourcing reliable bearings with the right specifications and quick delivery has long been a challenge for maintenance teams and procurement managers alike.
NTN 618/670: Precision Engineered for Heavy-Duty Machinery
The Deep Groove Ball Bearing 618/670 from NTN delivers the performance your industrial equipment demands. With dimensions of 670x820x69mm and constructed from high-grade bearing steel, this single-row radial bearing is designed to handle heavy radial loads in continuous operation. As a professional bearing supplier with decades of export experience, we ensure every unit meets NTN’s strict quality standards, providing the reliability your production line needs.
Optimal Performance in Demanding Operating Conditions
This 618 series bearing excels in high-load, moderate-speed applications where precision and durability are non-negotiable. Its 0° contact angle optimizes radial load capacity, making it ideal for machinery subject to steady rotational forces. Whether installed in large-scale manufacturing equipment, power transmission systems, or heavy-duty industrial machinery, the 618/670 bearing maintains stable performance even under fluctuating load conditions.
Key Technical Features for Reliable Operation
The 618/670’s robust construction starts with premium bearing steel, selected for its fatigue resistance and mechanical strength—critical properties for extending bearing service life in industrial environments. The single-row design balances load capacity with installation flexibility, fitting seamlessly into standard machinery configurations. With its precise 670x820x69mm dimensions, this bearing ensures proper shaft alignment, reducing vibration and minimizing wear on adjacent components. The combination of high-quality materials and engineering precision results in a bearing that delivers consistent performance over extended operating cycles.
Why Genuine NTN Bearings Reduce Total Cost of Ownership
Choosing genuine NTN bearings over counterfeit alternatives eliminates the hidden costs of premature failure. Counterfeit bearings often use substandard materials and imprecise manufacturing, leading to early wear, increased noise, and unexpected breakdowns. A single bearing failure can cause secondary damage to expensive equipment, requiring costly repairs and extended downtime. Genuine NTN bearings, by contrast, are manufactured to international standards (ISO, ABMA, DIN) and undergo rigorous testing to ensure reliability, ultimately lowering your total cost of ownership through longer service intervals and reduced maintenance requirements.
Our Commitment to Reliable Bearing Supply
With over 18 years of experience serving global industrial buyers, we maintain strict quality control throughout our supply chain. As an ISO 9001:2015 certified company, we implement comprehensive incoming inspections and full-process production supervision for all bearings. Our technical team provides free guidance on bearing selection and installation, ensuring optimal performance in your specific application. We offer flexible order policies, including 1 piece MOQ for standard bearings and efficient delivery—3-5 working days for sample orders and 5-15 working days for bulk purchases. For distributors and wholesalers, we provide free samples (freight borne by customer) to verify quality before placing large orders.
Packaging & Shipping
- Original NTN packaging with protective inner wrapping and outer carton reinforcement
- Sample orders shipped within 3-5 working days; bulk orders within 5-15 working days
- Multiple logistics options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking number provided once shipment is dispatched
- Minimum order quantity of 1 piece supported for emergency maintenance needs
Get Your 618/670 Bearing Shipped Today
Don’t let equipment downtime impact your production schedule. The sooner you replace worn bearings with genuine NTN components, the faster you can restore full operational capacity. Whether you need a single replacement bearing or a bulk order for scheduled maintenance, we have the inventory and expertise to meet your requirements.
Frequently Asked Questions
Q: Are these genuine NTN bearings?
A: Yes, we supply genuine original NTN bearings sourced directly from authorized channels. Each product can be traced through our supply chain, and we can provide authorization documentation upon request.
Q: How do I confirm if the 618/670 is compatible with my equipment?
A: Our professional technical team can assist with compatibility checks. Please provide your equipment model, application details, and operating conditions, and we’ll verify the correct bearing specifications for your needs.
Q: What is your warranty policy for NTN bearings?
A: We offer an official 12-month warranty from the date of delivery. Qualified defective products are eligible for free replacement or direct refund according to our after-sales service terms.
Q: What is the minimum order quantity for the 618/670 bearing?
A: We accept orders for 1 piece of standard bearings, making it easy to source emergency replacement parts without excess inventory costs.
Q: How quickly can you ship the 618/670 bearing?
A: Sample orders are typically shipped within 3-5 working days. For bulk orders, delivery time is 5-15 working days depending on quantity and production schedule.
Q: How can I verify the authenticity of the bearings I receive?
A: Genuine NTN bearings feature precise laser markings, authentic packaging with security labels, and serial numbers that can be verified through official channels. We provide full traceability documentation with each order to confirm authenticity.
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