Product Specifications
| Parameter |
Details |
| Model NO. |
NU228, NU230, NU428, NU430EM |
| Outer Dimension |
35mm-180mm |
| Material |
Bearing Steel |
| Spherical |
Non-Aligning Bearings |
| Load Direction |
Radial Bearing |
| Separated |
Separated |
| Product Name |
Cylindrical Roller Bearing |
| Structure |
Cylindrical |
| Seals Type |
Open |
| Lubricate |
Oil, Grease, Dry |
| Precision Rating |
P0, P6, P5, P4, P2 |
| Number of Row |
Single Row |
| Vibration |
V1, V2, V3, V4 |
| Service |
OEM, ODM |
| Transport Package |
Carton, Pallet |
| Specification |
140*250*42 mm |
| Origin |
China |
| HS Code |
8482500090 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Gearboxes, Printing Presses |
| Automotive |
Transmissions, Axles, Heavy-Duty Vehicles |
| Agriculture |
Harvesters, Tractors, Farm Machinery |
| Construction |
Excavators, Loaders, Heavy Equipment |
| New Energy |
Wind Turbines, Solar Equipment Drives |
Reduce Downtime with High Load Cylindrical Roller Bearings NU228 NU230 NU428 NU430EM
Industrial machinery operators know the cost of unexpected downtime—hours lost to bearing failures, replacement delays, and production halts. When standard bearings can’t handle heavy radial loads or variable operating conditions, equipment reliability suffers. Many face challenges with sourcing bearings that balance load capacity, precision, and fast delivery, especially for older or specialized machinery.
Engineered for Heavy-Duty Performance in Industrial Machinery
Our High Load Cylindrical Roller Bearing series (NU228, NU230, NU428, NU430EM) addresses these pain points with robust design and manufacturing expertise. As an integrated bearing manufacturer since 2005, we produce bearings with P0-P4 precision and Z2-Z4 noise grades, ensuring they meet the demands of industrial machinery like machine tools, gearboxes, and printing presses. The separated inner and outer rings allow for easy installation and maintenance, while the radial load capacity makes them ideal for heavy machinery applications.
Optimal Performance in Demanding Work Environments
These cylindrical roller bearings excel in environments with high radial loads and moderate speeds, common in industrial machinery. The open design allows for flexible lubrication options—oil, grease, or dry running—adapting to diverse operating conditions. Whether powering a CNC machine spindle or a conveyor system, the single-row structure and non-aligning design provide stable rotation under continuous stress, reducing the risk of premature failure.
Key Technical Features That Maximize Reliability
Precision rating is critical for machinery accuracy: our bearings are available in P0 to P2 grades, with tighter tolerances (P4/P2) minimizing vibration and ensuring smooth operation in high-precision equipment. Vibration levels (V1-V4) are controlled to reduce noise and extend bearing life, a vital factor in factory environments. The use of high-quality bearing steel enhances durability, while the separated design simplifies mounting, reducing installation time and labor costs.
Long-Term Value: Avoid the Hidden Costs of Substandard Bearings
Choosing low-quality bearings may save upfront costs but often leads to frequent replacements, unplanned downtime, and increased maintenance expenses. Our bearings, backed by ISO9001 and ISO14001 certifications, undergo rigorous quality control in our in-house lab, ensuring consistent performance. With a 12-month global warranty, we stand behind every product—defective bearings are replaced or refunded, protecting your investment and reducing total cost of ownership.
Why Global Buyers Choose Saifan Bearings
With over 18 years in the industry, we serve clients across Europe, America, Southeast Asia, and the Middle East. Our R&D capabilities support OEM/ODM customization, while flexible order terms—1pc MOQ for standard items, 3-5 day sample lead time, and 5-15 day bulk delivery—meet both small-scale repairs and large production runs. We provide free technical guidance to ensure proper bearing selection, and our defect replacement policy ensures peace of mind. Our commitment to stable supply and competitive pricing has made us a trusted partner for industrial machinery manufacturers worldwide.
Packaging & Shipping
- Secure carton packaging with pallet reinforcement for bulk orders
- Sample lead time: 3–5 days; bulk delivery: 5–15 days
- Global shipping via T/T, credit card, or Alibaba trade terms
- Free samples available (buyer covers freight)
- 1pc MOQ for standard items, supporting emergency maintenance needs
Get Your High Load Cylindrical Roller Bearings Today
Don’t let bearing issues disrupt your production schedule. Whether you need NU228, NU230, NU428, NU430EM, or custom specifications, our team can provide a tailored solution. Send us your bearing model, application details, and quantity, and we’ll deliver a quote within 24 hours—with fast shipping to get your machinery back to work.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, all our bearings are manufactured in-house under strict quality controls and come with full traceability. We also supply authentic NSK/INA bearings for specific requirements.
Q: How do I confirm the correct bearing model for my equipment?
A: Provide your equipment model or operating parameters (load, speed, temperature), and our technical team will help verify the right bearing specification for your application.
Q: What is your warranty policy?
A: We offer a 12-month global warranty. Manufacturing defects are covered by free replacement or refund, with responsive after-sales support.
Q: What is the minimum order quantity?
A: Standard items have a 1pc MOQ, ideal for emergency repairs or small-scale needs. Custom orders may have different requirements based on specifications.
Q: How quickly can I receive my order?
A: Samples ship in 3–5 days, and bulk orders in 5–15 days. We work with global logistics providers to ensure timely delivery to your location.
Q: Can you provide technical support for installation?
A: Yes, our team offers free technical guidance on installation, lubrication, and maintenance to maximize bearing performance and lifespan.
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