Product Specifications
| Parameter |
Details |
| Model NO. |
NJ406, NJ413, NJ421, NJ430EM |
| Product Name |
Cylindrical Roller Bearing |
| Structure |
Cylindrical |
| Precision Rating |
P0, P6, P5, P4, P2 |
| Material |
Bearing Steel |
| Load Direction |
Radial Bearing |
| Separated |
Separated |
| Spherical |
Non-Aligning Bearings |
| Seals Type |
Open |
| Lubricate |
Oil, Grease, Dry |
| Number of Row |
Single Row |
| Outer Dimension |
Large (200-430mm) |
| Specification |
110*200*53 mm |
| Service |
OEM, ODM |
| Origin |
China |
| HS Code |
8482500090 |
Application Industries
| Industry |
Typical Equipment |
| Manufacturing |
CNC Machine Tools, Spindles, Gearboxes |
| Industrial Machinery |
Printing Presses, Reducers |
Eliminate Spindle Downtime with NJ406-NJ430EM High Precision P4 Cylindrical Roller Bearings
Machine tool operators know the frustration: unexpected spindle failure halts production, eats into profits, and delays deadlines. Low-precision bearings wobble under high speeds, causing poor surface finishes and frequent replacements. Sourcing reliable high-precision bearings often means long lead times or minimum orders that tie up capital. These challenges don’t just cost money—they erode your competitive edge.
Engineered for Machine Tool Spindles: Precision You Can Rely On
Our Cylindrical Roller Bearings NJ406, NJ413, NJ421, and NJ430EM are designed to solve these pain points. As an integrated bearing manufacturer with ISO9001 and ISO14001 certifications, we deliver P4 precision—critical for machine tool spindles where even microns matter. The separated inner and outer rings allow easy mounting, while the radial load capacity ensures stable performance in high-torque applications. Whether you’re running a small job shop or a large production facility, these bearings reduce vibration, extend spindle life, and maintain consistent machining accuracy.
Optimized for High-Speed, Heavy-Duty Machining
These Cylindrical Roller Bearings excel in the demanding conditions of machine tool spindles. Operating at high rotational speeds, they handle radial loads with minimal friction, thanks to their cylindrical roller design and open construction that allows efficient lubrication. The bearing steel material provides the strength needed to withstand continuous operation, while the single-row structure balances load capacity and precision. Whether cutting hard metals or finishing delicate parts, these bearings maintain stability, reducing tool wear and improving surface quality.
Technical Excellence That Drives Performance
Precision rating P4 is not just a label—it’s a guarantee of performance. P4 bearings have tighter tolerances for bore diameter, outer diameter, and width, ensuring minimal runout and vibration. This translates to smoother spindle rotation, which is essential for achieving tight part tolerances. The separated design simplifies installation and maintenance, allowing for quick replacements and reducing downtime. Additionally, the radial load direction capability makes these bearings ideal for spindle applications where radial forces dominate, such as in milling and drilling operations. With options for oil, grease, or dry lubrication, they adapt to various machining environments, providing versatility without compromising performance.
Why Compromising on Bearings Costs More in the Long Run
Choosing low-quality bearings to save upfront costs often leads to higher expenses later. Inferior materials wear quickly, causing premature spindle failure and costly repairs. Poor precision results in scrapped parts and rework, wasting time and materials. In contrast, our High Precision P4 Bearings offer long-term value through extended service life and consistent performance. Backed by a 12-month global warranty, they minimize the risk of unexpected failures. We stand behind our products, offering defect replacement and free technical guidance to ensure you get the most out of your investment. When you factor in reduced downtime, fewer replacements, and improved part quality, the choice for genuine, high-precision bearings becomes clear.
Your Trusted Partner for Bearing Solutions
Since 2005, Jinan Saifan Bearing has served global buyers across Europe, America, Southeast Asia, and the Middle East. Our full R&D and QC lab ensure every bearing meets strict quality standards. We offer flexible orders—1pc MOQ for standard items—so you can stock exactly what you need without excess inventory. With 3–5 days sample lead time and 5–15 days bulk delivery, we keep your production on schedule. Our team provides free technical guidance, helping you select the right bearings for your specific application. We support OEM/ODM customization, tailoring solutions to your unique requirements. When you work with us, you get more than a supplier—you get a reliable long-term partner committed to your success.
Packaging & Shipping
- Carton and pallet packaging for secure transport
- 3–5 days sample lead time for standard items
- 5–15 days bulk delivery to meet production deadlines
- Flexible shipping options including T/T, credit card, and Alibaba trade
- 1pc MOQ available for emergency repairs or small-batch needs
Get Your Spindles Running at Peak Performance
Don’t let subpar bearings slow down your production. Our NJ406, NJ413, NJ421, and NJ430EM High Precision P4 Cylindrical Roller Bearings are in stock and ready to ship. Send us your bearing designation, application details, and quantity today, and we’ll provide a quote within 24 hours. The sooner you upgrade, the sooner you’ll see improved efficiency, reduced downtime, and better machining results.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, we manufacture our bearings in-house with full quality control and provide ISO9001 & ISO14001 certifications. Each product can be traced through our production and QC processes.
Q: How do I confirm if the NJ430EM bearing fits my machine tool spindle?
A: Provide your spindle model or technical specifications (bore diameter, outer diameter, width, load requirements), and our technical team will verify compatibility for free.
Q: What is the warranty policy for these P4 precision bearings?
A: We offer a 12-month global warranty covering manufacturing defects. Defective products will be replaced or refunded at no cost.
Q: What is the minimum order quantity for NJ413 bearings?
A: We accept 1pc MOQ for standard items, making it easy to order for emergency repairs or small-scale production.
Q: How quickly can I receive my order of NJ421 bearings?
A: Sample lead time is 3–5 days, and bulk delivery takes 5–15 days, depending on quantity and location.
Tags:
Buy Cylindrical Roller Bearings P4
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Machine Tool Spindles Bearings
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NJ413 Bearing for Spindles
NJ421 High Precision Bearing
NJ430EM Machine Tool Bearing
