Cylindrical Roller Bearing NUP208EM 17x40x16mm P4 Precision for CNC Machine Tools

Product Specifications

Application Industries

CNC Machine Downtime Costs You Thousands — NUP208EM P4 Precision Bearings Keep Production Running

When a cylindrical roller bearing fails in your CNC machine spindle, the average production line loses 8–12 hours of runtime for replacement and calibration. For high-precision machining centers, this translates to $3,000–$8,000 in lost output per hour. Worse, generic bearings often fail prematurely due to inconsistent material quality and imprecise manufacturing, turning a simple repair into a recurring problem.

NUP208EM P4 Precision Bearings: In Stock and Ready to Ship

Our Cylindrical Roller Bearing NUP208EM with 17x40x16mm dimensions and P4 precision rating solves these challenges. As an official authorized distributor, we maintain sufficient stock of P4/P2 grade bearings, ensuring you get the exact component you need without waiting for manufacturer lead times. Each bearing undergoes precision testing procedures compliant with ISO 9001 and DIN standards before shipment, guaranteeing it meets the strict tolerance requirements of CNC machine tool spindles.

Engineered for High-Speed, High-Precision CNC Operations

The NUP208EM cylindrical roller bearing is specifically designed for radial load applications in high-speed rotating components like CNC machine spindles. Its separated inner and outer rings allow for easy mounting and dismounting, while the single-row cylindrical structure minimizes friction at speeds up to 12,000 rpm (depending on lubrication and cooling). In precision machining scenarios, where axial runout must be controlled to 2–3 μm, the P4 precision rating ensures consistent performance and extended tool life.

Technical Details That Define CNC Spindle Performance

The 17mm bore diameter (d), 40mm outer diameter (D), and 16mm width (B) of the NUP208EM align with common spindle designs in mid-sized CNC lathes and milling machines. Its precision rating (P4) guarantees dimensional accuracy within 5 μm for bore and outer diameter, critical for maintaining spindle concentricity. The open seal design allows for optimal lubricant flow in oil-mist lubrication systems, while the bearing steel construction provides hardness up to HRC 60–62, resisting wear during continuous operation. As a radial bearing, it efficiently handles radial loads up to 22 kN (dynamic load rating, typical for this size), making it suitable for heavy-duty cutting operations.

Why Genuine Precision Bearings Lower Your Total Cost of Ownership

Choosing a genuine NUP208EM P4 bearing over counterfeit alternatives reduces long-term costs significantly. Counterfeit bearings often use substandard steel with inconsistent hardness, leading to premature flaking or cage failure within 3–6 months of operation. A single spindle failure from a fake bearing can damage expensive motor windings or tool holders, costing $5,000–$15,000 in repairs. In contrast, our bearings, sourced through official channels, come with full certification documents and traceability, ensuring they meet original equipment manufacturer specifications for 20,000+ hours of reliable operation.

Why 800+ Industrial Clients Trust Our Bearing Solutions

Packaging & Shipping

• Original manufacturer packaging with product certification and batch traceability documentation
• Reinforced carton and pallet packaging for shock protection during transportation
• 3–7 business days delivery for in-stock items via DHL, FedEx, or UPS
• Real-time logistics tracking provided from warehouse dispatch to delivery
• Minimum order quantity of 1 piece, supporting emergency maintenance needs

Get Your NUP208EM P4 Bearing Shipped Today

Every hour your CNC machine is down costs money. Our NUP208EM P4 precision cylindrical roller bearings are in stock and ready to ship, with technical support available to confirm compatibility with your equipment. Send us your bearing designation, application details, and required quantity to receive a quote within one working day.

Frequently Asked Questions