Product Specifications
| Parameter |
Details |
| Model NO. |
NA4860 |
| Load Direction |
Radial Bearing |
| Style |
Without Outer Ring, Without Inner Ring |
| Material |
Bearing Steel |
| Type |
Closed |
| Product Name |
Needle Roller Bearing |
| Lubrication |
Grease or Oil |
| Precision Rating |
P0 P6 P5 P4 P2 |
| Clearance |
C0 C3 C4 |
| Delivery Time |
3-7days |
| Service |
OEM ODM |
| Transport Package |
Carton Pallet |
| Specification |
300*380*80 mm |
| Origin |
China |
| HS Code |
8482102000 |
| Production Capacity |
1000000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Equipment, Reducers |
| Automotive |
Transmission Systems, Wheel Hubs |
| Agricultural Machinery |
Harvesters, Tractors |
| Construction |
Excavators, Heavy Load Machinery |
| New Energy |
Wind Turbines, Photovoltaic Equipment |
Stop Production Delays with High Precision NA4860 NA4864 NA4868 Needle Roller Bearings
Industrial machinery operators know the cost of bearing failure—unplanned downtime, missed deadlines, and costly repairs. When standard bearings can’t handle high radial loads or precise rotation, production lines suffer. Many suppliers force minimum orders that tie up capital, while others compromise on material quality, leading to premature wear. Finding a reliable source for precision needle roller bearings shouldn’t mean sacrificing flexibility or performance.
Engineered for Longevity: NA Series Needle Roller Bearings You Can Trust
Our Needle Roller Bearing NA4860, NA4864, and NA4868 address these challenges directly. As an integrated manufacturer with ISO9001 and ISO14001 certifications, we produce each bearing to P0-P4 precision standards, ensuring consistent performance in critical applications like machine tool spindles and reducer assemblies. With a 1pc MOQ for standard items and 3-7 day delivery, we eliminate the need for large inventory stockpiles, letting you order exactly what you need when you need it.
Built for Heavy-Duty Industrial Environments
These closed-type needle roller bearings excel in high-load, low-speed applications where space is limited. The 300*380*80 mm NA4860 model, constructed from premium bearing steel, delivers exceptional radial load capacity—ideal for agricultural machinery reducers and construction equipment gearboxes. Without inner or outer rings, they integrate seamlessly into existing component designs, reducing assembly complexity while maintaining structural integrity under continuous operation.
Precision Parameters That Maximize Machine Performance
The technical specifications of our needle roller bearings directly impact your equipment’s efficiency. Our P0-P4 precision ratings ensure minimal radial runout, critical for maintaining alignment in CNC machine tools. Clearance options (C0, C3, C4) allow customization for thermal expansion in high-temperature environments, preventing seizure during extended operation. The closed design retains lubrication (grease or oil) effectively, reducing maintenance intervals and extending service life in dusty industrial settings.
Why Cutting Corners on Bearings Costs More in the Long Run
Low-quality bearings may save money upfront, but they often fail within months, causing production halts that cost far more than the initial savings. A single downtime incident in a manufacturing plant can exceed $10,000 per hour. Our bearings, backed by a 12-month global warranty, undergo rigorous QC testing to ensure material purity and dimensional accuracy. We stand behind every unit—offering defect replacement or refund to protect your investment and keep your machinery running.
Decades of Expertise in Bearing Manufacturing
Since 2005, Jinan Saifan Bearing has served global buyers across Europe, America, and Southeast Asia, building a reputation for reliability. Our full R&D department and in-house QC lab ensure each bearing meets international standards, while OEM/ODM capabilities let us tailor solutions to your unique requirements. With free technical guidance and responsive after-sales support, we don’t just sell bearings—we partner with you to optimize your equipment performance.
Packaging & Shipping
- Secure packaging in carton pallets to prevent damage during transit
- 3-7 day delivery for standard items, with expedited options available
- Flexible shipping via DHL, FedEx, UPS, air, or sea freight
- Real-time tracking provided for all orders
- 1pc minimum order quantity to support emergency repairs and small-batch needs
Get Your Precision Needle Roller Bearings Today
Don’t let subpar bearings slow your production. Whether you need NA4860, NA4864, NA4868, or custom-engineered solutions, our team is ready to assist. Send us your bearing model, application details, and quantity, and we’ll provide a competitive quote within 24 hours. With our fast delivery and technical expertise, you can minimize downtime and maximize productivity.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, all our bearings are manufactured in-house under strict ISO standards, with full traceability from raw material to finished product.
Q: How do I confirm the right bearing for my equipment?
A: Provide your equipment model or application parameters (load, speed, temperature), and our technical team will verify compatibility at no cost.
Q: What is your warranty policy?
A: We offer a 12-month global warranty covering manufacturing defects, with free replacement or refund for non-conforming products.
Q: What is the minimum order quantity?
A: Standard items have a 1pc MOQ, supporting both emergency repairs and small-batch purchases.
Q: How quickly can you ship?
A: Most standard bearings ship within 3-7 days; custom orders depend on specifications, typically 5-15 days.
Q: Do you offer technical support for installation?
A: Yes, our engineers provide free technical guidance on installation, lubrication, and maintenance to optimize bearing performance.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
