-- SKF Authorized Engineering Partner
Ensure smooth, reliable operation for your automobile rolling mill with the NSK HR30303-06DJ Roller Bearing, designed to deliver consistent performance under heavy radial loads. Crafted from high-grade bearing steel, this single-row cylindrical roller bearing minimizes downtime by maintaining precision alignment—even in demanding industrial environments.
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
| Parameter | Details |
|---|---|
| Bearing Type | Cylindrical Roller Bearing |
| Model Number | NJ321, NJ326, NJ328, NJ338, NJ340EM |
| Outer Dimension | Large (200-430mm) |
| Specification | 105×225×49 mm |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Spherical | Non-Aligning Bearings |
| Structure | Cylindrical |
| Seals Type | Open |
| Lubricate | Oil, Grease, Dry |
| Precision Rating | P0, P6, P5, P4, P2 |
| Number of Row | Single Row |
| Separated | Separated |
| Trademark | BDL |
| Origin | China |
| HS Code | 8482500090 |
| Industry | Typical Applications |
|---|---|
| Automobile | Transmission systems, drivetrain components |
| Rolling Mill | Roller assemblies, steel processing equipment |
| Industrial Machinery | Heavy-duty gearboxes, power transmission units |
Finding the right roller bearing for high-load applications like automobile rolling mills can be challenging. Mismatched dimensions lead to installation delays, while poor material quality results in premature wear and unexpected downtime. With countless models and brands available, sourcing the exact replacement often requires contacting multiple suppliers—wasting valuable time that could be spent on production.
Our cylindrical roller bearings address these challenges with precision-engineered solutions designed for automobile rolling mills and other high-stress industrial applications. As a专业轴承供应商 with ISO 9001 certified production processes, we ensure each bearing meets strict quality standards. With access to a comprehensive range of models—including the NJ321, NJ326, NJ328, NJ338, and NJ340EM series—we can quickly match your requirements, whether you need standard sizes or specific configurations.
This cylindrical roller bearing excels in applications where radial loads are the primary force, such as rolling mill roller shafts and automobile transmission systems. The single-row design with a separated structure allows for easy mounting and dismounting, simplifying maintenance. Operating efficiently with oil, grease, or dry lubrication, it accommodates large outer dimensions (200-430mm) and maintains stability even under heavy loads, making it a reliable choice for continuous-duty machinery.
The bearing steel construction provides exceptional hardness and wear resistance, critical for withstanding the abrasive conditions of rolling mills. Precision ratings from P0 to P2 allow for customization based on application requirements—higher precision grades (P4, P2) reduce vibration in high-speed operations, while standard grades (P0, P6) offer cost-effective solutions for general use. The open seal design facilitates lubrication replenishment, ensuring consistent performance over time, while the cylindrical structure ensures uniform load distribution across the rollers, minimizing stress concentrations.
Selecting a high-quality cylindrical roller bearing directly impacts your equipment’s total cost of ownership. Inferior bearings with substandard materials or imprecise dimensions often fail prematurely, leading to unplanned shutdowns, replacement costs, and lost productivity. Our bearings, manufactured to strict tolerances (105×225×49 mm specification), ensure proper fit and alignment, reducing wear on adjacent components. By investing in a reliable bearing, you minimize maintenance frequency and extend equipment lifespan, ultimately lowering long-term operational expenses.
We stand behind our products with a comprehensive quality assurance process. Each bearing undergoes rigorous testing, including原材料 inspection, dimensional accuracy checks, and hardness testing, to ensure compliance with industry standards. Our ISO 9001 certified production and检验流程 guarantee consistent quality, while our warranty covers manufacturing defects for added peace of mind. Whether you need bearings under our BDL trademark or specific international brands, our extensive supply chain allows us to source and deliver the right product when you need it.
Ready to secure the right cylindrical roller bearing for your automobile rolling mill or industrial application? Provide us with the model number, dimensions, and quantity, and our team will promptly deliver a competitive quote. With our extensive inventory and global sourcing capabilities, we can fulfill orders of any size, ensuring you get the bearings you need without unnecessary delays.
Q: Do you supply bearings from other brands besides BDL?
A: Yes, we offer a full range of轴承 from international brands such as NSK, SKF, NTN, Koyo, NACHI, IKO, FAG, Timken, and domestic优质品牌. We can source and supply bearings according to your specific brand or model requirements.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment’s bearing dimensions (d x D x B) or the original model number, and our technical team will verify compatibility with the NJ series cylindrical roller bearings.
Q: What is your warranty policy for these bearings?
A: We provide a质保期 for all bearings, covering manufacturing defects. Specific terms and duration are detailed in the purchase contract, and defective products can be replaced or refunded as per agreement.
Q: What is the minimum order quantity for this bearing?
A: We offer low minimum order quantities to accommodate both small-scale maintenance needs and large production runs. Contact us for details based on your specific requirements.
Q: How long does shipping take, and what methods are available?
A: For in-stock items, we ship within 1-3 business days. Shipping methods include快递 for urgent orders, 空运 for international deliveries, and 海运 for large bulk shipments, with transit times varying by destination.
Q: Can you provide OEM or ODM services for custom bearings?
A: Yes, we support OEM and ODM定制 according to your specific drawings, specifications, or performance requirements. Our engineering team can assist in developing tailored solutions for unique applications.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
[Contact Information]
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
24h
Quote Response
78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
-- Get In Touch
Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
Address
No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Regarding: NSK HR30303-06DJ Roller Bearing for Automobile Rolling Mill
-- Related Products
SKF Authorized Engineering Partner
Need technical support or a custom solution?
15+ certified engineers ready to help. Response within 24 hours.
