61821 Deep Groove Ball Bearing Long-Lived High Quality
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SKF
Deep Groove Ball Bearing
ISO 9001
TS 16949
Genuine SKF
50+ Countries
24h Response
-- SKF Authorized Engineering Partner
NTN N320em NJ320em NF320em NU320em NUP320em Cylindrical Roller Bearing
Ensure smooth, reliable performance in your machinery with this precision-engineered NTN Cylindrical Roller Bearing, designed to minimize downtime and maximize operational efficiency. Available in models N320em, NJ320em, NF320em, NU320em, and NUP320em, it handles radial loads with exceptional stability, making it ideal for high-speed applications.
- Rich stock availability ensures quick fulfillment, so you won’t face costly delays in maintenance or production
- Supports both grease and oil lubrication for flexible integration into various systems
- Precision tolerances and vibration grades (Z1V1-Z3V3) deliver consistent, quiet operation even under heavy loads
- Sample available for testing, backed by a 100% on-time delivery rate and responsive support
Technical Specifications
- Product Name
- NTN N320em NJ320em NF320em NU320em NUP320em Cylindrical Roller Bearing
- Category
- Deep Groove Ball Bearing
- Quality Standard
- ISO 9001 / TS 16949
- Lead Time
- 8-12 Weeks Custom
- Minimum Order
- Negotiable
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
Tipo de Rolamento
Rolamento de rolos cilíndricos
Especificação
Estoque
Ações Ricas
Tecnologia de graxas
Alto
Lubrificação
Graxas ou Óleo
Vibração
, Serviço
OEM, ODM
Entrega
por correio expresso, rodoviário, ferroviário, aéreo, marítimo
Amostra
Disponível
Taxa de entrega dentro do prazo
100,0%
Tempo de resposta
Menos de 0,5 h
Pacote de transporte
Caixa, Palete
Marca Registrada
Origem
China
Código HS
8482102000
Capacidade de produção
20.000.000 unidades/ano
Adequação da Aplicação
Indústria
Aplicações Típicas
Equipamentos de automação
Sistemas de transporte, braços robóticos
Engenharia Mecânica
Bombas hidráulicas, caixas de engrenagens
Maquinário industrial
Está com dificuldades para escolher rolamentos de rolos cilíndricos? Concentre-se nestes fatores essenciais
Finding the right cylindrical roller bearing for your equipment often means sifting through dozens of models and brands, only to face compatibility issues or long lead times. When dimensions like 30*47*9mm don’t match, or low-quality bearings fail prematurely, production downtime becomes unavoidable. This cylindrical roller bearing addresses common industry challenges with its precise 30*47*9mm dimensions and compatibility with international standards. Backed by ISO 9001-certified production processes, it ensures reliable operation in automation equipment and mechanical engineering applications. With rich stocks available, we eliminate the wait for critical replacements, supporting both OEM and ODM requirements. Engineered to handle high radial loads, this bearing excels in machinery where rotational precision is key—such as conveyor systems and hydraulic pumps. Its Z1V1 to Z3V3 vibration grades allow customization based on noise and smoothness requirements, ensuring stable performance even in continuous operation. The choice between grease or oil lubrication further adapts to specific working conditions, from clean industrial settings to heavy-duty environments. Principais características de engenharia que afetam a confiabilidade
The 30mm bore diameter (d), 47mm outer diameter (D), and 9mm width (B) follow standardized dimensions, ensuring interchangeability with major brands. High-grade grease technology reduces friction and wear, extending service life compared to generic alternatives. Surface hardness and precision machining minimize vibration, critical for maintaining alignment in high-speed applications. For maintenance teams, the dual lubrication option offers flexibility—grease for sealed systems and oil for high-temperature operations. Investing in a quality cylindrical roller bearing prevents hidden expenses associated with frequent replacements. Early bearing failure can damage adjacent components like shafts or housings, leading to costly repairs. This bearing’s robust construction and 100% on-time delivery rate reduce unplanned downtime, while its compatibility with multiple brands simplifies inventory management. By focusing on long-term performance rather than initial cost, you optimize your equipment’s total operational efficiency. Our production follows ISO 9001 standards, with rigorous testing for dimensional accuracy, surface hardness, and vibration levels. Raw materials are inspected before manufacturing, and finished products undergo thorough quality checks to meet specifications. We provide a warranty against manufacturing defects, ensuring peace of mind for your critical applications. With access to both international brands (NTN, NSK, Koyo) and domestic options, we deliver bearings that match your exact requirements. Embalado em caixas com opções de paletes para pedidos em grande quantidade
Solicite hoje mesmo sua cotação de rolamentos de rolos cilíndricos
Whether you need the 61906 series or other cylindrical roller bearings, provide your model, dimensions, and quantity, and we’ll respond within 0.5 hours with pricing and availability. Our extensive inventory ensures fast delivery, so you can keep your operations running without delay. Perguntas frequentes
Q: Can you source other bearing brands or models? A: Yes, we support inquiries for all bearing brands and models, including both international (NTN, NSK, Koyo) and domestic options, supplied to your specified standards. P: Como posso verificar se este rolamento é compatível com o meu equipamento?
A: Provide your equipment’s required dimensions (d x D x B) or model number, and our technical team will verify compatibility with the 30*47*9mm specification. Q: Qual é a sua política de garantia?
A: We offer a warranty against manufacturing defects; specific terms are detailed in the purchase contract, covering replacement or refund for verified issues. Q: Qual é a quantidade mínima de pedido?
A: We accept low minimum orders, supporting small-batch purchases for testing or urgent replacements, as well as large-volume production needs. P: Em quanto tempo vocês conseguem enviar o produto após o pedido?
A: In-stock bearings ship immediately; delivery time depends on your location and chosen shipping method (Express, Air, Sea, etc.). Q: Você oferece soluções de rolamentos personalizadas (OEM/ODM)?
A: Yes, we provide OEM/ODM services, manufacturing bearings to your drawings, specifications, or brand requirements. Ready to order or need a quote?
61906, 61906-2RS1, 61906-2RZ
30*47*9mm
BDL/NTN/NSK/NMB/Koyo/NACHI/Timken
Electric motors, machine tools
Designed for Consistent Performance in Demanding Environments
Optimal Performance Under Radial Loads
Why Choosing the Right Cylindrical Roller Bearing Lowers Total Costs
Quality You Can Verify Through Transparent Processes
Packaging & Shipping
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
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Wind Power
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Mining & Heavy Industry
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Steel & Metallurgy
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Automotive & EV
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Precision Machinery
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
General Industrial
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
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
EngineeringCustom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Failure Analysis
DiagnosticsRoot-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
Predictive Maintenance
IIoTIIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Custom Modification
CustomModified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
On-Site Installation
SupportCertified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Lifecycle Support
LifecycleLong-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.
-- 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
Regarding: NTN N320em NJ320em NF320em NU320em NUP320em Cylindrical Roller Bearing
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SKF Authorized Engineering Partner
Need technical support or a custom solution?
15+ certified engineers ready to help. Response within 24 hours.