Description
Product Specifications
| Parameter | Details |
|---|---|
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Spherical Type | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separated Design | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage Material | Brass, Steel |
| Vibration Level | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| HS Code | 8482800000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Heavy Duty Industrial Machinery | Industrial equipment requiring high axial load capacity and precision rotation |
Need a Reliable NNU4921 B/Sp W33 Double Row Cylindrical Roller Bearing? Here’s What Matters
Finding the right double row cylindrical roller bearing for heavy duty machinery can be challenging. Many buyers face issues with incorrect load capacity ratings, poor material quality leading to premature wear, or long lead times for specialized models. When your equipment depends on reliable bearings, these problems can cause costly downtime and maintenance delays.
Built for Heavy Duty Performance
The NNU4921 B/Sp W33 Double Row Cylindrical Roller Bearing with Brass Cage is engineered to address these challenges. As a supplier with access to a comprehensive range of bearing types and brands, we ensure this bearing meets industrial standards for heavy duty applications. Its separated design allows for easy installation and maintenance, while the brass cage provides durability in demanding operating conditions.
Optimal Performance in Heavy Load Applications
This bearing excels in industrial machinery where high axial loads and moderate radial loads are present. With a hardness rating of 60-64 HRC, it offers excellent wear resistance, making it suitable for continuous operation in steel mills, mining equipment, and construction machinery. The non-aligning design ensures stable performance where shaft misalignment is minimal, maintaining precision even under heavy loads.
Key Engineering Features Explained
The bearing’s separated structure allows for quick disassembly during maintenance, reducing downtime compared to non-separable designs. The brass cage provides superior heat dissipation and rigidity, critical for high-speed applications where steel cages might deform under stress. Available clearance options (C0 to C5) allow customization based on operating temperature and load conditions—tighter clearances for precision machinery, larger clearances for thermal expansion in high-temperature environments. The 120-190mm outer dimension range positions this bearing as a medium-to-large solution for heavy duty industrial needs.
Why Proper Bearing Selection Lowers Total Cost
Choosing the right double row cylindrical roller bearing directly impacts your equipment’s total cost of ownership. A bearing with insufficient load capacity or improper clearance can lead to early failure, requiring emergency replacements and unplanned downtime. This NNU4921 B/Sp W33 model, with its robust bearing steel construction and precision manufacturing, reduces the risk of premature wear. By matching the bearing’s specifications to your application requirements, you avoid the hidden costs of frequent replacements and maintain consistent equipment performance.
Quality You Can Rely On
Our bearings undergo rigorous quality control processes, including material inspection and dimensional accuracy checks, to ensure they meet industry standards. We maintain a wide inventory of standard and specialized bearings, supporting same-day shipping for in-stock items. With the ability to source from multiple reputable manufacturers, we provide flexibility in meeting your specific brand or certification requirements. Each bearing comes with basic quality documentation, and we offer warranty coverage for manufacturing defects.
Packaging & Shipping
- Packaged in cartons with pallet options for bulk orders
- Same-day shipping available for in-stock items
- Flexible delivery options including快递, air, and sea freight
- Low minimum order quantity supported for both trial and regular purchases
Request a Quote for NNU4921 B/Sp W33 Bearing
Whether you need this specific NNU4921 B/Sp W33 Double Row Cylindrical Roller Bearing or other industrial bearings, we can provide competitive pricing and availability. Contact us with your required quantity, delivery location, and any special packaging needs, and our team will respond promptly with a detailed quote.
Frequently Asked Questions
Q: Do you supply bearings from other brands or models?
A: Yes, we offer a full range of bearing types and can source from various international and domestic brands according to your specifications.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment model or existing bearing dimensions (inner diameter, outer diameter, width), and our technical team will verify compatibility.
Q: What warranty do you offer on bearings?
A: We provide a standard warranty against manufacturing defects. Specific terms and duration are outlined in each order confirmation.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum order quantities, including single-unit purchases for emergency replacements.
Q: How long does shipping take to my location?
A: In-stock items ship the same day. Delivery time depends on your location and chosen shipping method, typically 3-15 business days.
Q: Can you provide custom bearing solutions?
A: Yes, we support OEM/ODM services for custom bearing specifications based on drawings or sample requirements.
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.
