Cylindrical Roller Bearings NJ406 NJ413 NJ421 NJ430EM for Machine Tool Spindles High Precision P4
Roller Bearing

ISO

Certified

P0-P4

Precision

1 PC

Min. Order

Roller Bearing Single-Row Cylindrical Roller Bearings

Cylindrical Roller Bearings NJ406 NJ413 NJ421 NJ430EM for Machine Tool Spindles High Precision P4

Ensure smooth, high-precision rotation for your machine tool spindles with our Cylindrical Roller Bearings NJ406, NJ413, NJ421, NJ430EM. Engineered to P4 precision grade, these bearings deliver exceptional radial load capacity and stability, minimizing vibration and extending spindle service life even under heavy-duty operation.

  • Separated structure design allows easy mounting and dismounting, simplifying maintenance and reducing downtime
  • Constructed with high-grade bearing steel for reliable performance in continuous industrial use
  • Available in open type with 110*200*53 mm specification, perfect for high-speed machining applications
  • Backed by our ISO 9001-certified quality control and 12-month warranty for your peace of mind

MOQ

1 Piece

Lead Time

5-15 Days

Warranty

12 Mo.

Precision

P0-P4

Noise Grade

Z2-Z4

Customization

OEM/ODM

  • High-grade chrome steel for long service life
  • Strict raw material inspection & full process monitoring
  • ISO 9001:2015 & ISO 14001 certified
  • ABMA & DIN standards compliant
  • Free samples for qualified distributors
  • T/T, Credit Card & Alibaba payment accepted

Product Details

Especificaciones del Producto

Parámetro

Detalles

Número de modelo

Nombre del producto

Clasificación de Precisión

P0, P6, P5, P4, P2

Material

Acero para rodamientos

Dirección de Carga

Rodamiento Radial

Separado

Separado

Esférico

Tipo de Sellos

Especificación

Servicio

OEM, ODM

Origen

China

Código HS

NJ406, NJ413, NJ421, NJ430EM
Cylindrical Roller Bearing
Structure Cylindrical
Non-Aligning Bearings
Open
Lubricate Oil, Grease, Dry
Number of Row Single Row
Outer Dimension Large (200-430mm)
110*200*53 mm
8482500090

Industrias de Aplicación

Industria

Equipo Típico

Fabricación

Maquinaria Industrial

CNC Machine Tools, Spindles, Gearboxes
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.

Excelencia técnica que impulsa el rendimiento

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.

Su Socio de Confianza para Soluciones de Rodamientos

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

    Embalaje en cartón y palets para un transporte seguro

  • 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 disponible para reparaciones de emergencia o necesidades de pequeñas cantidades

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.

Preguntas Frecuentes

P: ¿Son estos rodamientos genuinos y trazables?

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 Cylindrical Roller Bearings High Precision P4 Bearings Machine Tool Spindles Bearings NJ406 Cylindrical Bearing NJ413 Bearing for Spindles NJ421 High Precision Bearing NJ430EM Machine Tool Bearing
Fast Response · Within 24 Hours

Request a Quote for
This Product

Tell us your requirements -- quantity, specifications, or customization needs. Our team will respond with a competitive quote within 24 hours.

01

Submit Inquiry

Fill in your product requirements and contact details.

02

Confirm Parameters

Our team confirms specs, quantity, and arranges samples.

03

Receive Quotation

Get a detailed PI with competitive pricing and trade terms.

04

Place Order

Complete payment and we arrange production & delivery.

Product Inquiry Form

By submitting, you agree to be contacted by our sales team. We respect your privacy.

Related Products

More products from the same category

View All
High Precision Tapered Roller Bearings HR30303DJ HR33205J P0-P4 for Industrial Machinery

Roller Bearing

High Precision Tapered Roller Bearings HR30303DJ HR33205J P0-P4 for Industrial Machinery

<p>Ensure smooth, precise rotation for your industrial machinery with our <strong>High Precision Tapered Roller Bearings</strong>, designed to minimize downtime and boost operational efficiency. Crafted from premium bearing steel with P0-P4 precision grades and Z1V1-Z3V3 vibration control, these HR30303DJ and HR33205J models deliver long life and low noise even under heavy loads.</p> <ul> <li>Perfect for industrial equipment requiring reliable radial load handling and consistent performance</li> <li>15*42*14.25mm specification ensures seamless integration with standard machinery setups</li> <li>Backed by our ISO 9001-certified manufacturing process for quality you can trust, with flexible MOQ and fast 3-5 day sample delivery</li> </ul>

View Details
Needle Roller Bearing RNA4922 125x150x40mm P0-P4 Precision for Industrial Machinery

Needle Roller Bearings

Needle Roller Bearing RNA4922 125x150x40mm P0-P4 Precision for Industrial Machinery

<p>Ensure smooth, precise rotation in your industrial machinery with the <strong>Needle Roller Bearing RNA4922</strong>, engineered to deliver reliable performance even under heavy radial loads. This 125x150x40mm closed-type bearing, crafted from high-grade bearing steel, maintains P0-P4 precision to minimize vibration and extend equipment lifespan—perfect for manufacturers seeking consistent quality without compromising on durability.</p><ul><li>Radial load design with no inner/outer ring allows direct integration with machine shafts, reducing assembly complexity and saving valuable installation time</li><li>Grease or oil lubrication flexibility adapts to diverse operating conditions, from high-speed textile machinery to heavy-duty printing equipment</li><li>Backed by our ISO 9001-certified production process, ensuring each unit meets strict dimensional and performance standards for long-term operational stability</li></ul>

View Details
Rodamiento de rodillos autoalineante 22316MBK W33 P0-P4 precisión para maquinaria industrial

Roller Bearing

Rodamiento de rodillos autoalineante 22316MBK W33 P0-P4 precisión para maquinaria industrial

<p>Ensure smooth, reliable rotation in your industrial machinery with the <strong>Self-Aligning Roller Bearing 22316MBK W33</strong>, engineered to minimize downtime and boost operational efficiency. This precision roller bearing (80x170x58mm) adapts to misalignment, reducing stress on shafts and extending equipment lifespan—critical for maintaining consistent production in demanding environments.</p><ul><li>P0-P4 precision grades available to match your machinery’s exact performance needs, ensuring optimal load distribution and low vibration</li><li>Double-row roller design with W33 lubrication groove for enhanced durability, ideal for heavy-duty applications like conveyors and presses</li><li>Constructed from high-grade bearing steel for long service life, backed by our expertise in OEM/ODM customization to fit unique specifications</li></ul>

View Details
Conical Roller Bearing 32005 25x47x15mm P0-P4 Precision Long Life for Industrial Machinery

Roller Bearing

Conical Roller Bearing 32005 25x47x15mm P0-P4 Precision Long Life for Industrial Machinery

<p>Minimize downtime and maximize machinery efficiency with this <strong>Conical Roller Bearing 32005</strong>, engineered to deliver long-lasting performance in industrial applications. With precision grades from P0 to P4 and dimensions 25x47x15mm, it ensures smooth, reliable rotation under heavy loads—exactly what you need to keep production lines running without interruptions.</p><ul><li>High-speed, low-noise operation (Z1V1 to Z3V3 vibration grades) reduces operational disruptions and extends equipment lifespan</li><li>Flexible lubrication options (grease or oil) adapt to your specific machinery requirements, enhancing versatility in installation</li><li>Rich stock availability means quick fulfillment, so you won’t wait on critical replacements—backed by Saifan’s decades of manufacturing expertise</li></ul>

View Details