SKF bearings by designation · Itemized written quotes for mixed project lists
State the exact execution (designation suffix), whether you need the complete assembly, and which housings or mounting accessories belong on the same line. Keep precision items separate, with accuracy class and arrangement.
Technical data
Listed data for this SKF designation; confirm the execution and dimensions against your drawing or application before ordering.
| 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 |
| Transport Package | Carton Pallet |
| Specification | As Your Request |
| Origin | Jiangsu China |
| HS Code | 8482800000 |
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Heavy-duty gearboxes, large-scale conveyors, industrial pumps |
| Steel Mills | Rolling mill equipment, continuous casting machines |
| Mining Equipment | Crushers, excavator drivetrains |
| Construction Machinery | Concrete mixers, bulldozer transmissions |
Industrial machinery operators often face challenges with bearing selection—size mismatches leading to installation delays, unclear clearance requirements causing premature wear, and limited supplier options forcing compromise on quality. When critical equipment relies on precise bearing performance, these issues can result in costly downtime and maintenance.
This Double Row Cylindrical Roller Bearing with brass cage addresses common industrial pain points through its robust design and versatile specifications. With ISO 9001 certified production processes, our bearings meet strict quality standards, ensuring compatibility with industrial machinery across sectors like steel mills and mining equipment. The separated structure allows for easy mounting and dismounting, simplifying maintenance procedures in heavy-duty applications.
Designed for axial load handling in medium to large machinery (120-190mm outer dimension), this bearing excels in high-torque environments where precision and durability are critical. Its non-aligning design makes it suitable for applications with minimal shaft misalignment, while the C3 clearance option provides flexibility for thermal expansion in high-temperature operating conditions common in steel production and industrial processing.
The brass cage construction offers superior strength and heat dissipation compared to standard steel cages, reducing friction and extending service life in continuous operation. Bearing steel material with 60-64 HRC hardness ensures excellent wear resistance, critical for handling heavy loads in mining and construction equipment. The availability of multiple clearance grades (C0-C5) allows precise matching to specific application requirements, from tight tolerance machinery to those needing thermal expansion allowance. Vibration grades Z1V1 to Z3V3 provide options for noise-sensitive environments, ensuring smooth operation in precision industrial settings.
Selecting a properly specified bearing directly impacts machinery uptime and maintenance expenses. A bearing with incorrect clearance can lead to overheating and early failure, while substandard materials result in frequent replacements. This Industrial Machinery Bearing, with its brass cage and precise manufacturing, minimizes these risks by maintaining consistent performance under load. By following ISO 281 fatigue life standards, it reduces the likelihood of unplanned downtime, lowering long-term operational costs compared to cheaper alternatives that compromise on material quality or dimensional accuracy.
Our production processes adhere to ISO 9001 standards, with rigorous testing of raw materials and finished products for dimensional accuracy, hardness, and surface quality. Each bearing undergoes inspection to ensure it meets specified parameters, providing reliable performance in critical applications. We offer a warranty against manufacturing defects, with clear documentation and support for returns or replacements when needed. With access to a wide range of brands and models, we can source or supply bearings according to your exact specifications, ensuring compatibility with existing machinery.
Whether you need a single replacement or bulk order of the Double Row Cylindrical Roller Bearing NNU4920 B/Sp, provide your specific requirements including quantity and delivery location. Our team will promptly confirm availability and provide a competitive quote, ensuring you get the right bearing when you need it.
Q: Can you supply other brands or models of cylindrical roller bearings?
A: Yes, we support inquiries for all brands and models, providing bearings according to your specified standards and requirements.
Q: How do I confirm if this bearing fits my equipment?
A: Provide your equipment's bearing dimensions (d x D x B) or original model number, and our technical team will verify compatibility.
Q: What is your warranty policy for this bearing?
A: We offer a warranty against manufacturing defects; specific terms are detailed in the sales contract, covering replacement or refund for qualifying issues.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum order quantities, including small-scale trial orders to meet maintenance or testing needs.
Q: How long does shipping take, and what methods are available?
A: In-stock items ship immediately; delivery time depends on location, with options for express (2-5 days), air (5-10 days), or sea (20-40 days) freight.
Q: Do you offer custom (OEM/ODM) bearing solutions?
A: Yes, we can produce bearings according to your technical drawings or specific performance requirements, including custom cage materials and clearance settings.
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.
Project buyers
"We submitted a long SKF list for a new project, mixing ball, roller, needle and thrust bearings. This supplier came back with itemized pricing, lead times and alternatives for two long-lead references. We could plan the procurement timeline without surprises."
Daniel KimKim Engineering Project · South Korea"When our project timeline shifted and we needed to split the delivery into three batches, the supplier worked with us on the schedule. Each batch arrived complete and on the agreed date. No holding costs, no rush shipping fees."
Mohammed Al-AminAl-Amin Contracting · Saudi ArabiaSame series
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Typical equipment and duty conditions this SKF bearing type is specified for.
Standard and precision lines listed separately, each with model, stock, lead time and validity — so your comparison is line by line, not guesswork.
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Read the selection guideFAQ
Send the selected SKF model, quantity per line, accuracy requirement, mounting accessories, destination country and postcode, and the date you need the goods. Confirm the exact execution and whether you need the complete assembly. With that, Project Purchasing Company returns a written itemized quote.
List precision bearings on separate lines with their accuracy class and arrangement or configuration. Keeping them apart from standard bearings prevents wrong pricing and wrong shipments on mixed project lists.
Yes. Send a photo of the nameplate or bearing markings, and we list the information that still needs confirming. Any technical change or alternative model is clearly marked and requires your approval.
Yes. Shipping method and delivery schedule are confirmed before dispatch, so batches can follow your installation timeline. On receipt, check labels, quantity and condition; any mismatch is handled with your order number and photos.
Request a quote
Project Purchasing Company quotes every line by SKF model, with price and currency, stock, estimated lead time, validity and freight or tax terms. Add related bearings and accessories to the same request.
