Cylindrical Roller Bearing NUP218EM 90x160x30mm High Precision P4 for Precision Grinder

Product Specifications

Application Industries

Eliminate Grinding Machine Downtime with NUP218EM High Precision P4 Cylindrical Roller Bearings

Precision grinder operators know the frustration of unexpected downtime caused by bearing failure. When a substandard bearing vibrates excessively or fails prematurely, it not only halts production but also risks damaging expensive grinding components. Sourcing reliable high-precision bearings often means navigating minimum order quantities that delay urgent repairs or settling for unclear quality standards that compromise finished product accuracy.

Engineered for Precision Grinders: NUP218EM 90x160x30mm P4 Cylindrical Roller Bearing

Our NUP218EM Cylindrical Roller Bearing addresses these challenges with P4 precision rating—critical for maintaining the tight tolerances required in precision grinding applications. As an integrated manufacturer with ISO9001 certification, we control production from raw material selection to final inspection, ensuring each bearing meets consistent quality standards. With 1pc MOQ for standard items and 3–5 days sample lead time, we support both emergency repairs and scheduled maintenance needs without forcing excessive inventory purchases.

Optimized Performance in High-Precision Grinding Environments

This NUP218EM bearing excels in the radial load-dominant conditions of precision grinders, where stable rotation and minimal runout directly impact surface finish quality. The separated design allows for easy mounting and dismounting during maintenance, while the open seal configuration accommodates specialized lubrication requirements in high-speed grinding spindles. Whether used in cylindrical grinders, surface grinders, or tool and cutter grinders, this bearing delivers the reliability needed for continuous production cycles.

Technical Features That Drive Grinding Precision

The P4 precision rating of this cylindrical roller bearing ensures minimal radial and axial runout, critical for achieving the sub-micron tolerances demanded in precision grinding. Constructed from high-grade bearing steel, it maintains dimensional stability even under the thermal loads generated during extended grinding operations. The single-row design balances load capacity with rotational efficiency, while the separated inner and outer rings allow for optimal clearance adjustment—essential for preventing vibration-induced workpiece chatter. These features collectively contribute to consistent grinding results and extended bearing service life.

Why Precision Matters: The Cost of Compromised Bearings in Grinding

Using non-precision bearings in grinders creates hidden costs that far exceed initial savings. Excessive runout leads to poor surface finishes, requiring rework or scrapped parts. Premature failure causes unplanned downtime, with each hour of grinder inactivity potentially costing thousands in lost production. In contrast, our P4 precision NUP218EM bearing reduces maintenance intervals, improves workpiece quality, and extends equipment lifespan—delivering lower total cost of ownership over time. As global demand for high-precision components grows, the reliability of your grinding equipment directly impacts your competitive edge.

Our Commitment to Your Grinding Operation’s Success

Packaging & Shipping

• Carton and pallet packaging for secure transportation
• 3–5 days sample lead time for urgent evaluation
• 5–15 days bulk delivery for scheduled production needs
• Multiple shipping options including express, air, and sea freight
• 1pc MOQ available for emergency repair requirements

Get Your Precision Grinder Back to Optimal Performance

Don’t let bearing issues compromise your grinding precision or production schedule. Whether you need a single NUP218EM bearing for an emergency repair or are planning a maintenance program, our team is ready to support your needs. The sooner you secure reliable bearings, the sooner you can return to producing high-quality parts with minimal downtime.

Frequently Asked Questions