Product Specifications
| Parameter |
Details |
| Model NO. |
QJ252M |
| Separated |
Unseparated |
| Rows Number |
Single |
| Load Direction |
Radial Bearing |
| Material |
Bearing Steel |
| Product Name |
Angular Contact Ball Bearing |
| Application |
Automobile, Rolling Mill, Mine, Metallurgy |
| Lubrication |
Grease or Oil |
| Precision Rating |
P0 P6 P5 P4 P2 |
| Vibration |
Z1V1 Z2V2 Z3V3 |
| Stock |
in Stock |
| Service |
OEM ODM |
| Transport Package |
Carton Pallet |
| Trademark |
SKF/NTN/NSK/NMB/Koyo/NACHI/Timken |
| Origin |
China |
| HS Code |
8482102000 |
| Production Capacity |
1000000 |
Application Industries
| Industry |
Typical Equipment |
| Automobile |
Automotive drive systems, transmission components |
| Metallurgy |
Rolling Mills, continuous casting machines |
| Mine |
Mining machinery, ore processing equipment |
Minimize Downtime with High Precision Angular Contact Ball Bearings QJ252M QJ256M for Automobile Rolling Mill
Equipment failures due to bearing issues can halt production lines, leading to significant losses. Many manufacturers struggle with inconsistent quality from low-grade bearings or face long lead times when sourcing critical components. When precision and reliability are non-negotiable, choosing the right bearing becomes a critical decision for maintaining operational efficiency.
High Precision P4 Angular Contact Ball Bearings Ready for Immediate Shipment
Our Angular Contact Ball Bearing QJ252M and QJ256M are engineered to address these challenges directly. With P4 precision rating and Z2-Z4 noise grades, these bearings deliver the stability required for high-performance applications like automobile rolling mills. We maintain substantial inventory, ensuring standard items are available for immediate delivery with a 1pc MOQ, supporting both emergency repairs and planned production needs.
Optimal Performance in Demanding Industrial Environments
These angular contact ball bearings excel in environments requiring both radial and axial load handling. Designed for high-speed rotation with minimal vibration, they are ideal for automobile rolling mills where precision directly impacts product quality. The single-row, unseparated design ensures structural integrity under the heavy loads and continuous operation typical in mining and metallurgy applications, providing reliable performance even in harsh conditions.
Technical Specifications That Ensure Reliable Operation
The P4 precision rating of these bearings guarantees tight tolerances, reducing runout and improving rotational accuracy—critical factors for maintaining consistent product quality in rolling mill operations. Constructed from high-grade bearing steel, they offer exceptional durability and wear resistance, extending service life in high-stress applications. The Z2-Z4 vibration grades ensure smooth operation, minimizing noise and reducing stress on connected components. Available with grease or oil lubrication, these bearings can be tailored to specific operating conditions, optimizing performance and maintenance intervals.
Choosing Quality Bearings Reduces Long-Term Costs
Investing in genuine high-precision bearings eliminates the hidden costs associated with counterfeit or low-quality alternatives. Early bearing failure can lead to unplanned downtime, expensive repairs, and potential damage to expensive machinery. Our bearings, manufactured under ISO9001 and ISO14001 certifications, undergo rigorous quality control processes to ensure consistency and reliability. With a 12-month global warranty, we stand behind our products, providing peace of mind and reducing the total cost of ownership over time.
Why Global Buyers Partner with Saifan Bearings
With over 18 years of experience serving global markets across Europe, America, Southeast Asia, and the Middle East, we have established a reputation for reliability. Our integrated manufacturing and exporting capabilities ensure stable supply chains, while our full R&D and QC lab enable us to meet custom OEM/ODM requirements. We offer free technical guidance to help customers select the right bearings for their applications, and our defect replacement/refund policy ensures customer satisfaction. Our flexible order options, including 3–5 days sample lead time and 5–15 days bulk delivery, make us a preferred partner for time-sensitive projects.
Packaging & Shipping
- Secure packaging in carton and pallet to prevent damage during transit
- Sample lead time: 3–5 days for standard items
- Bulk delivery: 5–15 days after order confirmation
- Multiple shipping options including express, air, and sea freight
- 1pc MOQ available for standard items, supporting small quantity orders
Get Your High Precision Bearings Today
Don’t let bearing issues disrupt your production schedule. Whether you need QJ252M, QJ256M, or other high precision bearings, we have the inventory and expertise to meet your needs. Contact us with your specific requirements, and we’ll ensure you receive the right bearings quickly to keep your operations running smoothly.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, we supply authentic bearings and provide full traceability for all products, ensuring you receive genuine, high-quality components.
Q: How can I confirm if the QJ252M bearing is suitable for my rolling mill?
A: Provide your equipment specifications and operating conditions, and our technical team will assist in verifying the correct bearing型号 for your application.
Q: What is the warranty period for these bearings?
A: We offer a 12-month global warranty, covering manufacturing defects with free replacement or refund available.
Q: What is the minimum order quantity for standard bearings?
A: We accept 1pc MOQ for standard items, making it easy to source both small quantities for repairs and larger orders for production.
Q: How quickly can I expect my order to ship?
A: In-stock items ship within 3–5 days for samples and 5–15 days for bulk orders, with multiple shipping options to meet your timeline.
Q: Do you offer technical support for installation and maintenance?
A: Yes, we provide free technical guidance to help with installation, lubrication, and maintenance best practices for optimal bearing performance.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
