Product Specifications
| Parameter |
Details |
| Model NO. |
Double Row Cylindrical Roller Bearing |
| Outer Dimension |
Medium and Large(120-190mm) |
| Material |
Bearing Steel |
| Spherical |
Non-Aligning Bearings |
| Load Direction |
Axial Bearing |
| Separated |
Separated |
| Clearance |
C0 C2 C3 C4 C5 |
| Cage |
Brass, Steel |
| Vibration |
Z1V1 Z2V2 Z3V3 |
| Hardness |
60-64 HRC |
| HS Code |
8482800000 |
Application Industries
| Industry |
Typical Equipment |
| Heavy Engineering |
Excavators, Loaders, Bulldozers |
| Industrial Machinery |
Rolling Mills, Crushers, Conveyors |
Reduce Downtime with Reliable NN3038 K/SP W33 Cylindrical Roller Bearings for Heavy Equipment
Heavy engineering equipment operators know the cost of unexpected downtime—hours of lost productivity, expensive repairs, and missed project deadlines. When bearings fail prematurely in excavators or crushers, the root cause often traces back to substandard components that can’t handle heavy loads and continuous operation. Sourcing bearings that balance durability, precision, and availability is a constant challenge for maintenance teams and equipment manufacturers.
Engineered for Heavy-Duty Performance: Double Row Cylindrical Roller Bearing NN3038 K/SP W33
Our NN3038 K/SP W33 double row cylindrical roller bearing is designed to address these challenges head-on. As a professional bearing manufacturer with decades of export experience, we produce this bearing to meet P0-P4 precision grades and Z2-Z4 noise standards, ensuring it withstands the rigors of heavy engineering applications. The separated design allows for easy installation and maintenance, while the brass or steel cage provides stability under high loads—critical for equipment like excavator swing mechanisms and conveyor drives.
Optimal Performance in Demanding Work Conditions
This double row cylindrical roller bearing excels in heavy-duty environments where radial loads are high and alignment accuracy is essential. With a hardness of 60-64 HRC, it delivers exceptional wear resistance, making it ideal for continuous operation in construction sites, mining operations, and industrial processing plants. The bearing’s clearance options (C0 to C5) allow customization to specific operating temperatures and load conditions, ensuring minimal vibration and extended service life even under variable stress.
Technical Features That Maximize Equipment Uptime
The NN3038 K/SP W33 bearing’s design incorporates critical features that directly impact performance. Its separated inner and outer rings simplify mounting and dismounting, reducing maintenance time and labor costs. The choice of brass or steel cage material enhances durability—brass cages offer superior heat dissipation for high-speed applications, while steel cages provide added strength for extreme heavy loads. Vibration grades Z1V1 to Z3V3 ensure smooth operation, minimizing noise and reducing stress on connected components, which is especially important for precision machinery in industrial settings.
Why Cutting Corners on Bearings Costs More in the Long Run
Choosing low-quality cylindrical roller bearings may seem like a cost-saving measure, but the hidden expenses add up quickly. Premature failures lead to unplanned downtime, often requiring emergency part replacements and overtime labor. Inferior materials and imprecise manufacturing can also cause excessive vibration, leading to wear on gears, shafts, and other critical components. Our bearings meet ISO international standards and undergo strict quality control, from raw material inspection to full-process production supervision, ensuring consistent performance and reducing the total cost of ownership over time.
Your Trusted Partner for Bearing Solutions
Since 2005, Jinan Saifan Bearing Co., Ltd has served global clients across Europe, North America, Southeast Asia, and the Middle East. Our ISO 9001:2015 and ISO 14001 certifications underscore our commitment to quality and environmental responsibility. We offer flexible order policies, including a 1-piece MOQ for standard bearings and sample orders with 3-5 working day delivery, making it easy to secure the parts you need when you need them. Our professional technical team provides free guidance on selection, installation, and maintenance, ensuring you get the most out of every bearing.
Packaging & Shipping
- Carton pallet packaging for secure transport and storage
- Sample orders shipped within 3-5 working days
- Bulk orders delivered in 5-15 working days
- Multiple logistics options available to match your timeline
- 1 piece MOQ for standard bearings, ideal for emergency repairs
Get the Bearings Your Equipment Needs Today
Don’t let bearing failures slow down your operations. Whether you need a single replacement or bulk order for production, our NN3038 K/SP W33 double row cylindrical roller bearing is ready to ship. Contact us with your application details, and our team will confirm specifications and provide a quote—helping you get back to work with minimal delay.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, all our products undergo strict quality control and meet international standards. We can provide documentation to trace the manufacturing process and material sources upon request.
Q: How do I confirm if this bearing fits my equipment?
A: Provide your equipment model, application load, and operating conditions. Our technical team will verify compatibility and recommend the appropriate clearance and cage material.
Q: What is the warranty policy?
A: We offer a 12-month warranty from the date of delivery. Defective products due to manufacturing issues will be replaced free of charge or refunded.
Q: What is the minimum order quantity?
A: Standard bearings have a 1-piece MOQ, allowing for emergency repairs or small-scale testing.
Q: How long does shipping take?
A: Sample orders ship in 3-5 working days, while bulk orders take 5-15 working days depending on quantity and customization requirements.
Q: How can I ensure the bearing is installed correctly?
A: Our technical team provides free installation guidance, including torque specifications and lubrication recommendations, to ensure optimal performance and service life.
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