Deep Groove Ball Bearing
High Quality NU420EM NU421EM NU422EM Cylindrical Roller Bearing
ISO 9001 TS 16949
Genuine SKF
50+ Countries
24h Response

-- SKF Authorized Engineering Partner

High Quality NU420EM NU421EM NU422EM Cylindrical Roller Bearing

Ensure smooth, reliable operation in your machinery with our precision-engineered NU420EM Cylindrical Roller Bearing, designed to handle radial loads with minimal friction for extended equipment lifespan. Crafted from high-quality Bearing Steel, this single-row bearing maintains optimal performance under heavy duty, making it ideal for industrial applications where durability can’t be compromised.

  • 0° contact angle ensures efficient radial load distribution, reducing wear on shafts and housings
  • Precise 240*300*28mm specification fits standard industrial setups, simplifying replacement and maintenance
  • Trusted BDL trademark guarantees consistent quality from our China-based production facility, backed by a 1,000,000 unit annual capacity for reliable supply

Technical Specifications
Product Name
High Quality NU420EM NU421EM NU422EM Cylindrical Roller Bearing
Category
Deep Groove Ball Bearing
Quality Standard
ISO 9001 / TS 16949
Lead Time
8-12 Weeks Custom
Minimum Order
Negotiable
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15+ Certified Engineers On-Call

Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.

Especificações do Produto

Parâmetro

Detalhes

Número do Modelo

Número de Linhas

Individual

Direção de Carga

Rolamento Radial

Material

Aço para rolamentos

Ângulo de contato

0°

Especificação

Marca Registrada

BDL

Origem

China

Código HS

8482102000

6848 6948
240*300*28mm

Adequação da Aplicação

Indústria

Aplicações Típicas

Maquinário industrial

Sistemas de transporte, bombas hidráulicas, caixas de engrenagens

Equipamentos para laminadores, sistemas de manuseio de materiais

Automação

Steel & Metallurgy
Precision drive mechanisms, rotary tables

Need Reliable Cylindrical Roller Bearings? NU420EM, NU421EM, NU422EM Models Explained

Many buyers struggle with bearing selection—either receiving incorrect dimensions that delay installation, or low-quality units that wear prematurely under radial loads. Finding a single supplier who can handle both standard and hard-to-find models often means multiple quotes and longer lead times. This is especially true for cylindrical roller bearings, where precision in contact angle and load capacity directly impacts equipment uptime.

Projetado para desempenho sob carga radial

The High Quality NU420EM, NU421EM, and NU422EM cylindrical roller bearings address these challenges through ISO 9001-certified manufacturing processes. Built with bearing steel, they deliver reliable performance in single-row radial applications, from industrial conveyors to steel mill machinery. Our extensive inventory ensures quick access to these models, alongside a full range of international and domestic brands, eliminating the need for multi-supplier sourcing.

Optimal Conditions for These Bearings

These cylindrical roller bearings excel in applications with pure radial loads and moderate speeds. With a contact angle of 0°, they are designed to handle axial displacement while maintaining stability. The 240*300*28mm specification (for model 6848/6948) makes them suitable for large rotating equipment where dimensional accuracy and material strength are critical. Proper selection here prevents common issues like bearing creep and premature fatigue.

Principais características de engenharia para maior durabilidade

Bearing steel construction provides the hardness needed to resist wear under heavy loads—essential for machinery in mining or冶金 operations. The single-row design simplifies installation while ensuring optimal load distribution across the rollers. The 0° contact angle minimizes axial thrust, making these bearings ideal for applications where shaft alignment is critical. Each unit undergoes dimensional and hardness testing during production, ensuring compatibility with major international standards for seamless replacement.

Why Precision Bearings Reduce Total Costs

Choosing the right cylindrical roller bearing directly affects operational costs. Inferior bearings with subpar material hardness often fail early, causing unplanned downtime and costly repairs to adjacent components. These NU-series bearings, however, are manufactured to strict tolerances, reducing vibration and extending equipment life. By selecting bearings that match your load requirements and operating conditions, you avoid the hidden costs of frequent replacements and maintenance.

Garantia de Qualidade em Que Você Pode Confiar

Our production and inspection processes are ISO 9001 certified, covering raw material verification through to final dimensional and surface treatment checks. All bearings come with a warranty against manufacturing defects, ensuring peace of mind for critical applications. We maintain a broad inventory of both our BDL brand and other major labels, allowing us to fulfill orders of any size—from small batches to large-scale industrial requirements.

Packaging & Shipping

    Embalagem industrial padrão para garantir a proteção do produto durante o transporte

    Estoque disponível para envio imediato

    Opções flexíveis de envio, incluindo correio expresso, frete aéreo e transporte marítimo

  • Low minimum order quantities to support small-scale maintenance and large production runs

Get Pricing for NU420EM, NU421EM, NU422EM Bearings

Whether you need these specific cylindrical roller bearings or require assistance finding alternatives, provide your model number, dimensions, and quantity. Our team will confirm availability and deliver a competitive quote quickly. Early inquiry ensures faster processing and helps avoid production delays.

Perguntas frequentes

P: Você fornece outras marcas e modelos de rolamentos?

A: Yes, we offer a complete range of bearings including major international and domestic brands. We can source and supply bearings according to your specific model or dimensional requirements.

P: Como posso verificar se este rolamento é compatível com o meu equipamento?

A: Provide your equipment model or the required dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the NU420EM/NU421EM/NU422EM series.

Q: Qual é a sua política de garantia?

A: We provide a warranty against manufacturing defects. Specific terms are outlined in each order contract, covering replacement or refund for qualifying issues.

Q: Qual é a quantidade mínima de pedido?

A: We support low minimum order quantities, making it feasible for both small maintenance orders and large-scale production requirements.

Q: Quanto tempo leva o envio?

A: In-stock items ship immediately. Delivery time depends on your location and chosen shipping method—express options are available for urgent needs.

P: Vocês oferecem soluções de rolamentos personalizadas?

A: Yes, we support OEM/ODM customization based on drawings, specifications, or sample requirements for specialized applications.

Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
Contact us via email or inquiry form for prompt assistance.

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01

Authorized SKF Engineering Partner

Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.

02

15+ Certified Engineers On-Staff

In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.

03

ISO 9001 & TS 16949 Certified QC

Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.

04

Global Logistics to 50+ Countries

Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.

Performance Metrics

35%

Failures Prevented

70%

Downtime Reduction

25+

Years Experience

24h

Quote Response

78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.

Application Design

Engineering

Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.

Failure Analysis

Diagnostics

Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.

Predictive Maintenance

IIoT

IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.

Custom Modification

Custom

Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.

On-Site Installation

Support

Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.

Lifecycle Support

Lifecycle

Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.

Free samples available for orders over $50K

Validated against your KPIs before full production commitment.

Contact Engineering Team

-- Get In Touch

Request a Technical Consultation & Quote

Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.

Address

No. 377 Bansongyuan Road, Huangpu District, Shanghai, China

Free Sample Program

Orders over $50K qualify for free product samples

Test against your KPIs before full production commitment. Ask our engineers for details.

Product Inquiry Form

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ISO 9001 · TS 16949 · Authorized SKF Partner · Since 1998

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