Needle Roller Bearing NK29/20 SKF 29x38x20mm P4 Precision for CNC Machine Tools

Product Specifications

Application Industries

Minimize CNC Downtime with Genuine SKF NK29/20 Needle Roller Bearings

CNC machine operators know the frustration of unexpected spindle failures—hours of production lost, maintenance teams scrambling, and deadlines slipping. Too often, the root cause is substandard bearings that fail prematurely under high-speed radial loads. Sourcing authentic precision bearings from reliable suppliers can mean the difference between smooth operation and costly interruptions.

Authentic SKF P4 Precision Bearings, In Stock for Immediate Delivery

The SKF NK29/20 needle roller bearing delivers the performance CNC machine tools demand. As an officially authorized SKF distributor, we guarantee 100% genuine products with full traceability. Our ready stock of P4 precision grade bearings ensures 3-7 day delivery, so you can minimize downtime during emergency repairs or scheduled maintenance. This 29×38×20 mm radial bearing, designed without inner or outer rings, excels in compact spindle assemblies where space is critical.

Engineered for High-Precision CNC Applications

This needle roller bearing thrives in the demanding environment of CNC machine tool spindles, where radial loads and high rotational speeds are constant. Its closed design and bearing steel construction provide durability, while the P4 precision rating ensures minimal runout—critical for maintaining tight machining tolerances. Whether used in vertical or horizontal spindles, it delivers consistent performance under varying cutting forces, reducing vibration and improving surface finish quality.

Technical Features That Maximize Machine Performance

The NK29/20’s precision rating is a standout feature: P4 grade ensures dimensional accuracy within microns, essential for high-speed spindle applications where even minor deviations cause tool wear and part inaccuracies. Its clearance options (C0, C3, C4) allow customization to specific operating conditions—C3 clearance, for example, accommodates thermal expansion in high-temperature environments without compromising preload. The bearing’s lubrication flexibility (grease or oil) lets maintenance teams optimize for speed and load requirements, while its compact 29×38×20 mm size fits into space-constrained designs without sacrificing load capacity.

Why Genuine SKF Bearings Reduce Total Cost of Ownership

Counterfeit bearings may offer lower upfront costs, but they often fail within months, leading to unplanned downtime, damaged spindles, and expensive repairs. A single CNC machine outage can cost thousands in lost production—far exceeding the savings from cheap alternatives. Genuine SKF bearings, backed by decades of engineering expertise, deliver longer service life and predictable performance. Our ISO 9001 and DIN compliant quality control ensures every bearing meets SKF’s strict standards, minimizing the risk of premature failure and reducing long-term maintenance costs.

Why 800+ Global Clients Trust Our Bearing Solutions

Packaging & Shipping

• Original SKF packaging with protective inner casing and outer carton
• 3-7 days delivery for in-stock items
• Global shipping via DHL, FedEx, UPS, or freight carriers
• Real-time logistics tracking provided for all orders
• Minimum order quantity of 1 piece, ideal for emergency repairs

Get Your NK29/20 Bearing Shipped Today

Don’t let bearing issues slow your production. Whether you need a single NK29/20 for emergency repair or a bulk order for scheduled maintenance, we have you covered. Send us your bearing model, quantity, and application details, and our team will provide a quote within one working day—so you can get back to what matters: keeping your CNC machines running at peak performance.

Frequently Asked Questions