Cylindrical Roller Bearing N221EM NJ221EM NF221EM for Lathe Spindle P0-P4 Precision

Product Specifications

Application Industries

Eliminate Lathe Downtime with Precision Cylindrical Roller Bearings N221EM NJ221EM NF221EM

Lathe operators know the frustration: unexpected spindle bearing failure halts production, leaving jobs unfinished and deadlines missed. Many face the dilemma of choosing between low-quality bearings that compromise precision or overpriced options with long lead times. Mismatched bearings not only reduce machining accuracy but also shorten equipment lifespan, creating hidden costs that eat into profits.

High Precision Cylindrical Roller Bearings for Lathe Spindles You Can Rely On

Our Cylindrical Roller Bearing N221EM NJ221EM NF221EM series solves these challenges with P0-P4 precision ratings, engineered specifically for lathe spindle applications. As an integrated manufacturer with ISO9001 and ISO14001 certifications, we ensure consistent quality through rigorous R&D and in-house QC lab testing. Whether you need standard sizes or custom specifications, our 1pc MOQ for standard items and 3-5 day sample lead time mean you get the right bearing when you need it.

Optimal Performance in Lathe Spindle Applications

Designed as radial bearings with a separated structure, these cylindrical roller bearings excel in high-speed lathe spindle environments where radial load capacity and precision are critical. The open seal type allows for flexible lubrication with oil, grease, or dry operation, adapting to various machining conditions. Their single-row design balances load distribution, making them ideal for continuous rotation in precision machining tasks where minimal runout is essential.

Technical Features That Enhance Lathe Performance

The precision rating (P0-P4) directly impacts machining accuracy—higher precision grades like P4 minimize axial and radial runout, ensuring consistent part quality even at high speeds. Constructed from high-grade bearing steel, these bearings offer exceptional wear resistance, extending service life under heavy loads. The separated structure allows for easy mounting and dismounting during maintenance, reducing downtime. With outer dimensions ranging from 35mm to 400mm and a specific specification of 105*190*36 mm, they fit standard lathe spindle configurations while supporting OEM/ODM customization for unique requirements.

Why Quality Bearings Reduce Total Cost of Ownership

Choosing substandard cylindrical roller bearings may seem cost-effective initially, but frequent replacements, production downtime, and poor part quality quickly erase those savings. Our bearings, backed by a 12-month global warranty, deliver reliable performance that lowers long-term costs. Defect replacement and refund policies ensure you’re protected against manufacturing issues, while our free technical guidance helps optimize installation and maintenance—further extending bearing life and maximizing your equipment investment.

Your Trusted Partner for Lathe Spindle Bearings

Packaging & Shipping

• Carton and pallet packaging for secure transportation
• 3-5 days sample lead time for testing and verification
• 5-15 days bulk delivery to meet production schedules
• Flexible shipping options via trusted logistics partners
• 1pc MOQ for standard items, supporting emergency repairs

Secure Your Lathe’s Performance Today

Don’t let bearing issues disrupt your production. Send us your exact model requirements (N221EM, NJ221EM, or NF221EM), lathe specifications, and quantity, and we’ll provide a competitive quote within 24 hours. With free samples available (buyer covers freight), you can test before committing to bulk orders—ensuring the perfect fit for your equipment.

Frequently Asked Questions