Roller Bearing

Cylindrical Roller Bearing NJ424 NSK Japan Generator 120x310x72mm P0-P4 Precision

SKU: add87d423c23 In Stock

Ensure smooth, reliable generator operation with the Cylindrical Roller Bearing NJ424 NSK—engineered to deliver consistent performance under heavy loads. This Japan-manufactured bearing (120x310x72mm) features P0-P4 precision grades, making it ideal for generators where even minor vibrations can disrupt power output.

  • Separated inner/outer ring design allows easy installation and maintenance, reducing downtime for industrial equipment
  • High-grade bearing steel construction ensures long service life, addressing the need for durable components in continuous-operation systems
  • Radial load capacity optimized for generator applications, with open seals facilitating efficient lubrication for extended reliability
Wholesale Price (FOB)
¥1.00
MOQ: 1 Piece • Bulk discounts available on inquiry
12-Month Warranty
Free Samples
Global Shipping
Product Specifications

Technical Details & Description

Product Specifications

Parameter Details
Model NO. Nj424
Outer Dimension 35mm-400mm
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
Service OEM ODM
Transport Package Carton Pallet
Specification 120*310*72mm
Trademark NSK
Origin Japan
HS Code 8482500090
Production Capacity 100000

Application Industries

Industry Typical Equipment
Energy & Power Generators, Wind Turbines, Compressors
Industrial Machinery Machine Tools, Gearboxes, Electric Motors
Automotive Transmission Systems, Engine Components
Manufacturing Printing Machines, Reducers, Conveyors

Prevent Generator Downtime with Genuine NSK NJ424 Cylindrical Roller Bearing

Generator operators know the frustration of unexpected shutdowns caused by bearing failures. A single hour of downtime can cost thousands in lost power generation, not to mention the expense of emergency repairs and replacement parts. Sourcing reliable, authentic bearings that meet exact specifications often means navigating long lead times or minimum order quantities that don’t fit urgent maintenance needs.

Genuine NSK NJ424 Bearings Delivered When You Need Them

Our NSK NJ424 Cylindrical Roller Bearing is designed to solve these challenges. As an integrated bearing manufacturer and exporter with over 15 years of experience, we supply authentic NSK bearings with the precision and reliability your generator demands. The 120x310x72mm dimension and P0-P4 precision ratings ensure a perfect fit for generator applications, where radial load capacity and stability under continuous operation are critical.

Optimal Performance in Generator Applications

Cylindrical roller bearings like the NJ424 excel in high-load, high-speed environments typical of generators. Their separated inner and outer rings allow for easy mounting and dismounting, simplifying maintenance procedures. The open design accommodates various lubrication methods—oil, grease, or dry—making it adaptable to different generator configurations. Whether your generator operates in a power plant, industrial facility, or renewable energy setup, this bearing delivers consistent performance under radial loads.

Key Technical Features That Matter

The NSK NJ424’s technical specifications directly impact generator performance. Its precision rating (P0-P4) ensures minimal vibration and noise, critical for maintaining generator efficiency and reducing wear on adjacent components. The single-row cylindrical structure provides high radial load capacity, while the bearing steel material offers durability and resistance to fatigue under continuous operation. The separated design allows for axial displacement, accommodating thermal expansion in generators during long run times—an essential feature for preventing premature failure.

Why Authenticity Matters for Total Cost of Ownership

Choosing genuine NSK bearings over counterfeit alternatives reduces long-term costs significantly. Counterfeit bearings often fail early due to substandard materials and manufacturing, leading to unplanned downtime, costly repairs, and potential damage to generator shafts or housings. Authentic NSK bearings, backed by ISO9001 and ISO14001 certifications, undergo rigorous quality control to ensure reliability. The initial investment in genuine parts is offset by extended bearing life, fewer replacements, and lower maintenance expenses over time.

Your Reliable Partner for Bearing Solutions

We stand behind the authenticity and quality of every NSK bearing we supply. Our full R&D and QC lab ensures each bearing meets international standards, and we offer a 12-month global warranty for added peace of mind. With flexible ordering—1pc MOQ for standard items—and sample lead times of 3–5 days, we support both emergency repairs and planned maintenance. Our technical team provides free guidance to help you select the right bearing for your generator, ensuring optimal performance and longevity.

Packaging & Shipping

  • Original NSK packaging with carton and pallet for secure transport
  • Sample lead time: 3–5 days; bulk delivery: 5–15 days
  • Global shipping via DHL, FedEx, UPS, air, or sea freight
  • Real-time tracking number provided for all shipments
  • 1pc minimum order quantity to support emergency repairs

Get Your NSK NJ424 Bearing Today

Don’t let bearing issues disrupt your generator operation. Send us your bearing model (NJ424), application details (generator type, load requirements), and quantity, and we’ll provide a quote within 24 hours. With our fast delivery and authentic NSK products, you can minimize downtime and keep your generator running smoothly.

Frequently Asked Questions

Q: Are these genuine NSK bearings?

A: Yes, we supply authentic NSK bearings sourced directly from authorized channels, with full traceability to ensure originality.

Q: How do I confirm if the NJ424 fits my generator?

A: Provide your generator model, shaft diameter, and load specifications, and our technical team will verify compatibility at no cost.

Q: What is the warranty policy?

A: We offer a 12-month global warranty covering manufacturing defects, with free replacement or refund available for qualified issues.

Q: What is the minimum order quantity?

A: Standard items like the NJ424 have a 1pc MOQ, ideal for emergency repairs or small-scale purchases.

Q: How long does shipping take?

A: Samples ship in 3–5 days, bulk orders in 5–15 days. We offer multiple shipping options to meet your timeline.

Q: How can I verify the bearing’s authenticity?

A: Authentic NSK bearings include original packaging with holographic labels and serial numbers. We provide documentation to confirm traceability.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.

Sample Policy

Free samples available for distributors. 3–5 days production lead time.

Bulk Delivery

5–15 days for bulk orders. T/T, L/C and Alibaba payments accepted.

Certifications

ISO 9001:2015, ISO 14001 certified. ABMA / DIN compliant.

After-Sales

12-month warranty plus dedicated technical failure analysis support.

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