Ensure smooth, precise lathe spindle operation with our Cylindrical Roller Bearing N221EM NJ221EM NF221EM, engineered to deliver P0-P4 precision for optimal machining accuracy. Crafted from high-grade bearing steel, this separated-type radial bearing minimizes vibration and extends spindle life, addressing the need for consistent performance in industrial environments.
Especificaciones del Producto
| NUP221EM |
| 105*190*36 mm |
Industrias de Aplicación
| Lathe Spindles, Machine Tools, CNC Equipment |
| Printing Machinery, Reducers |
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.
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.
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.
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.
Por qué los rodamientos de calidad reducen el costo total de propiedad
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.
With over 18 years of experience serving global buyers across Europe, America, Southeast Asia, and the Middle East, Jinan Saifan Bearing has built a reputation for stability and reliability. Our full R&D capabilities and production capacity of 100,000 units ensure consistent supply, even for large orders. We offer flexible payment options including T/T, credit card, and Alibaba trade assurance, giving you financial security. Every bearing undergoes strict quality control before shipment, and our responsive after-sales team provides technical support whenever you need it.
Embalaje y Envío
Embalaje en cartón y palets para un transporte seguro
Entrega a granel de 5 a 15 días para cumplir con los cronogramas de producción
1pc MOQ para artículos estándar, apoyando reparaciones de emergencia
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.
Preguntas Frecuentes
P: ¿Son estos rodamientos genuinos y trazables?
A: Yes, we are an integrated manufacturer with strict quality control processes. Each bearing meets ISO standards and can be traced through our production records.
Q: How do I confirm the right bearing for my lathe spindle?
A: Provide your lathe model, spindle specifications, or existing bearing dimensions, and our technical team will verify compatibility at no cost.
P: ¿Qué cobertura de garantía ofrecen?
A: Ofrecemos una garantía global de 12 meses, que incluye reemplazo gratuito o reembolso por defectos de fabricación.
P: ¿Cuál es la cantidad mínima de pedido?
A: Standard items have a 1pc MOQ, ideal for emergency repairs or small-scale production needs.
P: ¿Qué tan rápido puedo recibir mi pedido?
A: Samples ship in 3-5 days, and bulk orders are delivered within 5-15 days depending on quantity.
P: ¿Ofrecen soporte técnico para la instalación?
A: Sí, nuestro equipo proporciona orientación técnica gratuita para garantizar una instalación adecuada y un rendimiento óptimo de los rodamientos.
¿Listo para hacer un pedido o necesita una cotización?
Envíe su designación de rodamiento, detalles de la aplicación y cantidad — responderemos dentro de 24 horas.
High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.
Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).
P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.
Professional technical guidance and failure solutions from our R&D team.
Master Sweden import duty thrust ball bearing costs by understanding that zero percent EU tariffs still incur twenty-five percent VAT. Avoid costly customs delays at Gothenburg port through accurate HS code 8482.50 classification and complete origin documentation to protect your distribution margins.
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Read ArticleOur R&D team supports full OEM/ODM customization with technical drawings. Contact us for stable factory pricing and reliable supply.
