Needle Roller Bearing NK45/20 45x55x20mm Radial Bearing P0-P4 Precision for Industrial Machinery

Product Specifications

Application Industries

Reduce Downtime with Precision NK45/20 Needle Roller Bearings for Industrial Machinery

Industrial machinery operators know the cost of unexpected downtime—hours lost to bearing failures, production delays, and emergency repairs. Many face challenges with generic bearings that fail prematurely under heavy loads or fail to meet precision requirements, leading to increased maintenance cycles and operational costs.

Engineered for Reliable Performance in Critical Applications

The NK45/20 Needle Roller Bearing addresses these pain points with its robust design and high-precision manufacturing. As a radial bearing with dimensions 45×55×20mm, it is optimized for industrial machinery where space is limited but performance cannot be compromised. Our production capabilities ensure consistent quality, with precision grades from P0 to P4 and noise grades up to Z4, meeting the demands of high-speed and heavy-load applications.

Optimal Performance in Demanding Industrial Environments

This needle roller bearing excels in applications requiring high radial load capacity and rigidity, such as machine tool spindles, gearboxes, and printing machinery. Its closed type design and bearing steel construction provide durability, while options for grease or oil lubrication allow adaptability to different operating conditions. Whether in continuous production lines or intermittent heavy-duty cycles, the NK45/20 delivers stable performance to keep your machinery running efficiently.

Key Technical Features That Drive Performance

Precision rating is critical for minimizing vibration and ensuring smooth operation—our P0 to P4 grades meet strict dimensional tolerances, reducing noise and extending service life. Clearance options (C0, C3, C4) allow customization for thermal expansion and preload requirements, ensuring optimal fit in various assemblies. The bearing’s compact size (45×55×20mm) makes it ideal for space-constrained industrial equipment, while its closed design protects internal components from contamination, reducing maintenance needs.

Why Genuine Quality Matters for Total Cost of Ownership

Choosing genuine bearings over counterfeit alternatives directly impacts your bottom line. Counterfeit bearings often fail prematurely, leading to unplanned downtime, costly repairs, and potential damage to关联设备. Our NK45/20 bearings adhere to ISO, ABMA, and DIN international standards, ensuring reliability and compliance with industrial regulations. With a 12-month warranty and strict quality control processes—including incoming material inspections and full-process production supervision—we stand behind every product, reducing the risk of unexpected failures and lowering long-term operational costs.

Your Trusted Partner for Bearing Solutions

Packaging & Shipping

• Secure packaging with carton and pallet to prevent damage during transit
• Sample orders shipped within 3-5 working days; bulk orders within 5-15 working days
• Multiple logistics options available, including express (DHL, FedEx) and sea/air freight
• Real-time tracking provided for all shipments
• 1 piece MOQ for standard bearings, with customized order quantities negotiable

Get Your NK45/20 Bearings Today

Don’t let bearing issues disrupt your production schedule. Whether you need a single replacement or bulk order, our NK45/20 Needle Roller Bearings are ready to ship. Contact us with your requirements, and our team will assist with选型 and provide a competitive quote within 24 hours.

Frequently Asked Questions