Product Specifications
| Parameter |
Details |
| Model NO. |
6311 |
| Separated |
Unseparated |
| Rows Number |
Single |
| Load Direction |
Radial Bearing |
| Material |
Bearing Steel |
| Product Name |
Deep Groove Ball Bearing |
| Bore Size |
1-160 mm |
| Seals Type |
Zz 2RS Open |
| Lubrication |
Grease or Oil |
| Precision Rating |
P0 P6 P5 P4 |
| Vibration |
Z1V1 Z2V2 Z3V3 |
| Service |
OEM ODM |
| Transport Package |
Carton Pallet |
| Specification |
25*52*15 mm |
| Trademark |
BDL |
| Origin |
China |
| HS Code |
8482102000 |
| Production Capacity |
1000000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Equipment, Reducers |
| Automotive |
Wheel Hubs, Transmission Systems |
| Agriculture |
Harvesters, Tractors |
| Home Appliances |
Electric Motors, Pumps |
| New Energy |
Wind Turbines, Photovoltaic Equipment |
Minimize Downtime with Reliable Deep Groove Ball Bearing 6311 for Industrial Machinery
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. When a critical component like a Deep Groove Ball Bearing 6311 fails prematurely, production stops, maintenance costs rise, and deadlines are missed. Many face challenges with inconsistent quality from low-cost suppliers or long lead times for precision bearings, making it hard to keep operations running smoothly.
Precision Engineered Deep Groove Ball Bearing 6311 for Stable Performance
Our Deep Groove Ball Bearing 6311 is designed to address these pain points with reliable performance and flexible supply. With dimensions 25x52x15mm, it meets P0-P4 precision standards and Z2V2 noise grade requirements, ensuring smooth operation in industrial machinery. We support OEM/ODM customization to match specific equipment needs, and offer 1pc MOQ for standard items, allowing you to order exactly what you need without excess inventory. Samples are available in 3-5 days, so you can verify performance before full-scale deployment.
Optimal Performance in Key Industrial Applications
This 6311 Ball Bearing excels in radial load applications, making it ideal for machine tools, printing presses, and reducers where consistent rotation and low noise are critical. Its single-row design and unseparated structure provide stability under continuous operation, while the choice of Zz, 2RS, or Open seals allows adaptation to different environmental conditions—from clean factory settings to dustier agricultural environments. Whether powering conveyor systems or precision machining equipment, this bearing delivers the reliability industrial operations demand.
Technical Features That Ensure Longevity and Efficiency
The performance of the Deep Groove Ball Bearing 6311 is defined by its key technical attributes. Precision ratings from P0 to P4 control dimensional accuracy and rotational precision, with higher grades (P5, P4) reducing vibration and improving machine tool accuracy. Vibration grades Z1V1 to Z3V3, including Z2V2, minimize noise and resonance, critical for noise-sensitive environments like printing facilities. Constructed from high-quality bearing steel, it balances hardness and toughness to withstand radial loads and maintain integrity over extended use. Lubrication flexibility—either grease or oil—allows optimization for operating speed and temperature, ensuring consistent performance across varying conditions.
Avoid Hidden Costs with Quality Bearings
Choosing a low-quality 6311 25x52x15mm Ball Bearing may seem cost-effective initially, but the hidden costs add up. Premature failures lead to unplanned downtime, expensive repairs, and potential damage to adjacent components. Our bearings, backed by ISO9001 and ISO14001 certifications, undergo rigorous quality control to ensure consistent performance. With a 12-month global warranty, we stand behind our products, reducing the risk of unexpected expenses. Investing in reliable bearings lowers total cost of ownership by extending service intervals and minimizing production disruptions.
Why Saifan Bearings is Your Trusted Partner
Since 2005, Jinan Saifan Bearing has served global buyers across Europe, America, Southeast Asia, and the Middle East, building a reputation for stability and quality. Our full R&D and QC lab ensure each bearing meets strict standards, from raw material inspection to final product testing. We offer defect replacement and refund policies, providing peace of mind for your investment. With bulk delivery times of 5-15 days and flexible payment options including T/T, credit card, and Alibaba trade assurance, we make the procurement process efficient and secure. Our technical team provides free guidance to help you select the right bearing for your application, ensuring optimal performance from day one.
Packaging & Shipping
- Carton and pallet packaging for secure transportation
- 3-5 days sample lead time for testing and validation
- 5-15 days bulk delivery to meet production schedules
- Multiple shipping options available to global destinations
- 1pc MOQ for standard items, supporting small-batch and emergency orders
Get Your Deep Groove Ball Bearing 6311 Today
Don’t let bearing issues slow down your operations. Whether you need a single replacement or bulk order, our Deep Groove Ball Bearing 6311 is ready to ship. Contact us with your requirements, and we’ll help you get the right bearing for your equipment—fast. The sooner you order, the sooner you can restore reliability to your machinery.
Frequently Asked Questions
Q: Is this Deep Groove Ball Bearing 6311 authentic?
A: Yes, we manufacture our own bearings to strict quality standards and supply authentic NSK/INA bearings. Each product is traceable through our quality control process.
Q: How do I confirm if the 6311 25x52x15mm Ball Bearing fits my equipment?
A: Provide your equipment model or specific technical requirements, and our technical team will assist with free选型确认 to ensure compatibility.
Q: What is the warranty policy for this bearing?
A: We offer a 12-month global warranty. Manufacturing defects are covered by free replacement or refund.
Q: What is the minimum order quantity?
A: The minimum order quantity for standard items is 1pc, supporting both emergency repairs and small-batch purchases.
Q: How long does shipping take?
A: Samples are delivered in 3-5 days, and bulk orders take 5-15 days. We offer flexible shipping options to meet your timeline.
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