Needle Roller Bearing NA6911 NA6912 NA6913 for Precision Mechanical Applications 55x80x45mm
Ensure smooth, precise rotation in your precision mechanical applications with our Needle Roller Bearing NA6911, designed to deliver reliable performance under radial loads. Crafted from high-grade bearing steel with P0-P4 precision ratings, this 55x80x45mm radial bearing minimizes vibration and extends equipment service life—ideal for machinery where space and accuracy are critical.
- Closed design with C0/C3/C4 clearance options ensures consistent operation in demanding conditions
- Supports both grease and oil lubrication for flexible maintenance
- Backed by our ISO 9001-certified manufacturing process for stable quality you can trust
- Available for OEM/ODM customization to match your exact specifications, with 3-7 day delivery on standard orders
Technical Details & Description
Produktdaten
Equipment failures caused by substandard bearings cost manufacturers thousands in lost production each year. Many buyers struggle with unreliable suppliers offering inconsistent quality, long lead times for custom sizes, and limited technical support when selecting the right bearing for precision applications. These challenges often lead to premature wear, increased maintenance costs, and unexpected downtime. Our Needle Roller Bearing NA6911, NA6912, and NA6913 series are engineered to solve these pain points with dimensions of 55x80x45mm, ideal for precision mechanical applications requiring high radial load capacity in compact spaces. As a professional bearing manufacturer with ISO 9001:2015 and ISO 14001 certifications, we ensure each bearing meets strict quality standards, from raw material inspection to final performance testing. Whether used in machine tools, automotive transmissions, or agricultural equipment, these bearings deliver consistent performance and durability. Needle roller bearings excel in applications with high radial loads and limited axial space, making them perfect for precision mechanical systems such as gearboxes, printing machines, and reducers. The NA6911, NA6912, and NA6913 models, with their closed design and bearing steel construction, provide reliable operation under varying speeds and temperatures. Their ability to handle heavy loads while maintaining precision makes them a critical component in industrial machinery where accuracy and uptime are essential. The precision rating of P0 to P4 ensures minimal runout and vibration, critical for high-speed applications like CNC machine spindles. Clearance options (C0, C3, C4) allow customization based on thermal expansion and operating conditions—C3 clearance, for example, is ideal for applications with significant temperature variations. The closed design protects internal components from contaminants, extending service life in dusty or moist environments. Lubrication flexibility (grease or oil) further adapts these bearings to diverse operational requirements, from low-speed heavy loads to high-speed continuous operation. Choosing genuine needle roller bearings over counterfeit products eliminates hidden costs associated with frequent replacements, equipment damage, and unplanned downtime. Our bearings adhere to ISO, ABMA, and DIN international standards, ensuring compatibility with original equipment specifications. A 12-month warranty covers manufacturing defects, providing peace of mind and reducing long-term maintenance expenses. For industrial buyers, investing in quality bearings translates to lower total cost of ownership through improved reliability and longer service intervals. With over 18 years of manufacturing and export experience, we serve customers in Europe, North America, Southeast Asia, and the Middle East. Our one-stop service includes independent R&D, mass production, and global sales, supported by a professional technical team offering free guidance on selection, installation, and maintenance. We maintain flexible order policies—1 piece MOQ for standard bearings and 3-5 day delivery for samples—ensuring responsive support for both small repairs and large-scale production needs. All products undergo strict incoming material inspection and full-process supervision, with in-house laboratory testing for dimensional accuracy, noise, vibration, and service life. Don’t let equipment downtime affect your production schedule. Whether you need NA6911, NA6912, or NA6913 bearings for immediate replacement or upcoming projects, we ensure fast delivery and reliable performance. Contact us with your specific requirements, and our technical team will help confirm the right bearing for your application. Q: Are these needle roller bearings genuine and traceable? A: Yes, all our bearings are manufactured in our ISO 9001:2015 certified facility and come with complete traceability documentation, ensuring authenticity and quality. Q: How can I confirm if the NA6911 bearing fits my equipment? A: Provide your equipment model or specific dimensional requirements (bore diameter, outer diameter, width), and our technical team will verify compatibility free of charge. Q: What warranty do you offer on these bearings? A: We provide a 12-month warranty from the date of delivery, covering manufacturing defects with free replacement or refund for qualified issues. Q: What is the minimum order quantity for the NA6911 bearing? A: The minimum order quantity for standard bearings is 1 piece, supporting both small repairs and bulk purchases. Q: How long does it take to ship an order? A: Sample orders ship within 3-5 working days, and bulk orders within 5-15 working days, with multiple logistics options to meet your timeline. Q: Can you customize bearings according to specific requirements? A: Yes, we support OEM and ODM customization, including adjustments to structure, size, housing, and packaging based on customer drawings and demands. Ready to order or need a quote?
Parameter
Details
Model NO.
NA6911
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
3-7 days
Service
OEM ODM
Transport Package
Carton Pallet
Specification
55*80*45 mm
Origin
China
HS Code
8482102000
Application Industries
Industry
Typical Equipment
Industrial Machinery
Machine Tools, Spindles, Gearboxes
Automotive
Transmission Systems, Drivetrains
Agricultural Machinery
Tractors, Harvesters, Implements
Manufacturing
Printing Machines, Reducers, Conveyors
New Energy
Wind Turbines, Solar Equipment
Prevent Equipment Downtime with Precision Needle Roller Bearings NA6911 NA6912 NA6913
High-Precision Needle Roller Bearings for Critical Mechanical Applications
Optimal Performance in Demanding Conditions
Key Technical Features That Ensure Reliability
Why Genuine Bearings Reduce Total Cost of Ownership
Our Commitment to Quality and Service
Packaging & Shipping
Secure Your Bearings Today
Frequently Asked Questions
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
Free samples available for distributors. 3–5 days production lead time.
5–15 days for bulk orders. T/T, L/C and Alibaba payments accepted.
ISO 9001:2015, ISO 14001 certified. ABMA / DIN compliant.
12-month warranty plus dedicated technical failure analysis support.
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Needle Roller Bearings HK4520 45x52x20mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NA4906 NA4907 NA4908 30x47x17mm for Industrial Machinery with P0-P4 Precision
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