Authorized SKF Distributor Ball, roller, needle, thrust and mounted bearings for industrial buyers worldwide
Buying for several machines? Add this model to one inquiry with the other SKF bearings, housings and accessories on your list. Each line keeps its own designation, quantity and specification.
Send Your Full List| Parameter | Details |
|---|---|
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Outer Dimension Range | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Alignment Type | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separable Design | Separated |
| Radial Clearance | C0, C2, C3, C4, C5 |
| Cage Material | Brass, Steel |
| Vibration Class | Z1V1, Z2V2, Z3V3 |
| Surface Hardness | 60-64 HRC |
| Origin | Jiangsu China |
| HS Code | 8482800000 |
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Heavy-duty gearboxes, rolling mill stands, large motors |
| Steel Mills | Continuous casting machines, rolling equipment |
| Mechanical Engineering | Presses, extruders, industrial fans |
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. When a critical bearing fails prematurely, it disrupts production schedules, increases maintenance costs, and creates safety risks. Many struggle with sourcing bearings that offer both precise dimensions and durable performance—especially for medium to large industrial equipment where replacement parts are not easily interchangeable.
The NNU4920 B/Sp C3 W33 Double Row Cylindrical Roller Bearing addresses these challenges with its robust design and industrial-grade materials. As a specialized bearing supplier with access to a comprehensive range of international standards, we ensure this bearing meets the exacting requirements of modern industrial machinery. Its separated structure allows for easy installation and maintenance, while the medium to large outer dimension range (120-190mm) makes it suitable for heavy-load applications in steel mills, mechanical engineering, and other industrial sectors where reliability is non-negotiable.
This double row cylindrical roller bearing excels in applications where high radial loads and moderate axial loads are present. With a surface hardness of 60-64 HRC, it provides excellent wear resistance even in continuous operation. The C3 clearance classification ensures optimal performance in environments where temperature variations may cause expansion, making it ideal for industrial machinery operating in fluctuating thermal conditions. Whether used in rolling mill stands or heavy-duty gearboxes, this W33 bearing maintains consistent performance under pressure.
The bearing's brass cage offers superior thermal conductivity and stability compared to standard steel cages, reducing friction and extending service life in high-temperature applications. Its separable design allows for quick disassembly during maintenance, minimizing equipment downtime. The non-aligning configuration ensures precise operation where shaft alignment is critical, while vibration classes Z1V1 to Z3V3 provide options for varying noise and smoothness requirements. These features combine to create a bearing that not only meets but exceeds the demands of industrial machinery applications.
Choosing the right bearing directly impacts your equipment's total cost of ownership. A low-quality bearing may save money upfront but often leads to frequent replacements, unplanned downtime, and potential damage to adjacent components. The NNU4920 B/Sp C3 W33 bearing's robust construction and precision manufacturing reduce these risks significantly. By meeting ISO standards for dimensional accuracy and material quality, it delivers predictable performance and longer service intervals—ultimately lowering maintenance costs and improving overall equipment efficiency for industrial machinery operators.
Our bearings undergo rigorous quality control processes, including material verification and dimensional inspections, to ensure consistent performance. We maintain a comprehensive inventory of industrial bearings, supporting quick delivery for urgent replacement needs. All products come with a warranty against manufacturing defects, providing additional peace of mind. As a supplier with access to multiple international standards, we can also source or produce bearings to your exact specifications, ensuring compatibility with your existing equipment.
Whether you need a direct replacement for existing equipment or are specifying bearings for new machinery, we can help. Provide us with your equipment details, required quantity, and delivery location, and our technical team will confirm compatibility and provide a competitive quote. With our extensive range of industrial bearings and commitment to quality, we ensure you get the right component when you need it.
Q: Can you supply other brands or models of cylindrical roller bearings?
A: Yes, we offer a comprehensive range of bearings following international standards, including various brands and models to meet specific application requirements.
Q: How do I confirm if this bearing will fit my equipment?
A: Provide your equipment model or existing bearing dimensions (bore, outer diameter, width), and our technical team will verify compatibility with the NNU4920 B/Sp C3 W33 specification.
Q: What is your warranty policy for this bearing?
A: We provide a warranty against manufacturing defects. Specific terms and duration are detailed in our sales agreement, with support for replacement or refund in case of verified quality issues.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum order quantities, including single units for emergency replacements, with volume pricing available for larger orders.
Q: How long does shipping take for this bearing?
A: In-stock bearings ship within 1-3 business days. Delivery time depends on your location, with express options available for urgent requirements.
Q: Do you offer custom bearing solutions?
A: Yes, we support OEM/ODM requirements, including custom dimensions, materials, and cage designs, based on your technical drawings and specifications.
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.
Electrical Equipment is an Authorized SKF Distributor that turns mixed equipment lists into itemised, comparable quotes and consolidated supply for industrial plants, maintenance contractors and distributors worldwide.
Ball, roller, needle, thrust, mounted and precision bearings handled in a single industrial order.
One inquiry covers parts for different machines, with designations and internal stock codes matched line by line.
Routine replacement bearings and special-specification models are labelled separately on your quote.
Identification gaps are closed before quoting; any alternative is listed separately for your approval.
These SKF models share the category of Double Row Cylindrical Roller Bearing NNU4920 B/Sp C3 W33 Brass Cage for Industrial Machinery and can be quoted on the same inquiry.
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04 Double Row Cylindrical Roller Bearing NNU4920 B/Sp C3 W33 Brass Cage for Industrial Machinery is specified in the applications below. Open an application to see the matching SKF bearing categories.
Industrial buyers in the USA, Mexico, Oman, France, New Zealand and Brazil source genuine SKF bearings and mixed lists through Electrical Equipment.
"When a critical piece of rotating equipment failed, we needed a mixed SKF list urgently. The supplier consolidated the order, shipped same-day, and the parts were on our plant floor in two days. The equipment was back online before the end of the shift."
Ahmed Al-FarsiFarsi Industrial Services · Oman "We had a bad experience with counterfeit SKF bearings from another supplier. The bearings from skfus.com are genuine, traceable, and the packaging matches SKF's current format. Our reliability team verified the first batch and we now use them as our primary source."
Luis HernandezHernandez Manufacturing · Mexico "The SKF mounted units and insert bearings we ordered for a conveyor upgrade were supplied with the correct housing and locking arrangement. Our maintenance team installed them without modification. No noise, no leaks, no call-backs."
Graham McLeodMcLeod Fabrication · New Zealand These guides cover selection, identification and replacement points relevant to Double Row Cylindrical Roller Bearing NNU4920 B/Sp C3 W33 Brass Cage for Industrial Machinery.
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Read the guideShort answers on identification, mixed orders, quote terms and substitutions at Electrical Equipment.
Send a clear photo of the bearing markings and note which details still need confirming. We close identification gaps, including the exact specification and complete assembly, before you accept a quote. Nothing is substituted to fill a gap.
Yes. Standard, precision and mounted units can sit in one itemised inquiry, with each line keeping its own designation, quantity and specification. Housings and mounting accessories are added when they are part of your supply scope.
Each quote lists the designation, quantity, price and currency, stock availability, estimated lead time and quote validity. Applicable freight or tax terms are stated, and the product documents available for your order are confirmed.
Only with your approval. Any alternative is marked separately on the quote, and every technical change needs sign-off from the buyer before an order is placed.
Send this model alone or with your full SKF list. We verify the identification details on every line first, then issue an itemised written quote with lead time and validity.
