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High Precision Deep Groove Ball Bearing 634 634-2Z 634-2RS for Industrial Machinery
ISO 9001:2015 P0-P4 Precision Factory Direct
Ball Bearing
Product Detail

High Precision Deep Groove Ball Bearing 634 634-2Z 634-2RS for Industrial Machinery

Ensure smooth, precise rotation in your industrial machinery with our High Precision Deep Groove Ball Bearing—engineered to eliminate downtime and enhance operational reliability. Available in 634, 634-2Z, and 634-2RS variants, this 4x16x5mm bearing delivers consistent performance even under radial loads, making it ideal for machine tools, conveyors, and precision equipment.

  • Single-row design with 0° contact angle ensures optimal load distribution and reduced vibration, critical for maintaining production accuracy
  • Constructed from premium bearing steel for extended service life, addressing the need for durable components in high-cycle industrial environments
  • Choose 2Z (metal shielded) or 2RS (rubber sealed) options to protect against contaminants, keeping maintenance costs low and machinery running longer

MOQ

1 Piece

Sample Lead Time

3-5 Days

Bulk Lead Time

5-15 Days

Warranty

12 Months

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Product Description

Especificaciones del producto

Parámetro

Detalles

Modelo NO.

Número de Filas

Único

Dirección de Carga

Rodamiento radial

Material

Acero para rodamientos

Ángulo de contacto

0°

Especificación

Marca registrada

Origen

Alemania, Suecia, Japón

Código HS

8482102000

634, 634-2Z, 634-2RS
4×16×5mm
NSK

Industrias de Aplicación

Industria

Equipo Típico

Fabricación Industrial

Herramientas de Máquina CNC, Husillos, Cajas de Engranajes, Motores Eléctricos

Electrodomésticos

Herramientas eléctricas

Washing Machines, Air Conditioners, Refrigeration Compressors
Drills, Grinders, Small Pneumatic Equipment
Office Machinery Printers, Copiers, Conveyors

Stop Equipment Downtime with High Precision Deep Groove Ball Bearing 634 Series

Nothing halts production faster than a bearing failure in critical machinery. Industrial operators know the cost of unexpected downtime—lost productivity, emergency repairs, and missed deadlines. When sourcing bearings like the 634, 634-2Z, or 634-2RS, the challenge often lies in finding reliable suppliers who can deliver genuine, high-precision parts without excessive minimum order requirements or long lead times.

Genuine High Precision 634 Bearings, Ready for Immediate Shipment

Our High Precision Deep Groove Ball Bearing 634 series solves these pain points by combining authentic NSK quality with flexible supply. As a trusted bearing supplier with decades of export experience, we maintain stock of standard bearings like the 4x16x5mm 634 variants, supporting MOQ as low as 1 piece for emergency repairs. Whether you need the open-type 634, shielded 634-2Z, or sealed 634-2RS, each unit meets NSK’s strict manufacturing standards, ensuring compatibility with industrial machinery, home appliances, and power tools.

Diseñado para un rendimiento confiable en aplicaciones exigentes

The 634 series deep groove ball bearings excel in radial load applications where precision and durability matter. With a contact angle of 0°, they handle pure radial loads efficiently, making them ideal for high-speed rotating components in CNC machine tools, electric motors, and small gearboxes. The 634-2Z features metal shields to protect against dust and debris, while the 634-2RS uses rubber seals to retain lubrication and prevent contamination—critical for equipment operating in manufacturing environments or outdoor settings.

Key Technical Features That Ensure Long Service Life

Crafted from high-grade bearing steel, the 634 series delivers stable performance across industrial conditions. The single-row design balances load capacity and compact size (4mm bore, 16mm outer diameter, 5mm width), fitting into space-constrained assemblies. For applications requiring maintenance-free operation, the 634-2RS seal design reduces the need for frequent lubrication, while the 634-2Z offers lower friction for high-speed scenarios. All variants adhere to international standards, ensuring consistent fit and function with existing equipment.

Avoid Hidden Costs: Why Genuine NSK Bearings Matter

Choosing counterfeit bearings may seem cost-effective initially, but the risks far outweigh the savings. Non-genuine 634 bearings often fail prematurely due to substandard materials and poor manufacturing, leading to equipment damage, unplanned downtime, and safety hazards. Genuine NSK 634-2RS and 634-2Z bearings, by contrast, undergo rigorous testing to meet ISO industrial standards, ensuring longer service life and reducing total cost of ownership. Our strict quality control—from incoming material inspection to full-process production supervision—guarantees that every bearing performs as expected.

Why Global Buyers Choose Saifan for Bearing Supply

With over 18 years in the industry, Saifan Bearings has built a reputation for reliability across Europe, North America, and Southeast Asia. We hold ISO 9001:2015 and ISO 14001 certifications, and our in-house laboratory conducts dimensional, noise, and vibration tests to ensure each bearing meets precision grade P0-P4 standards. As an authorized supplier of genuine NSK bearings, we provide full traceability for every unit. Our technical team offers free guidance on selection and installation, and our 12-month warranty covers manufacturing defects, with replacement or refund options available for qualified issues.

Packaging & Shipping

  • Original NSK packaging with protective inner boxes and outer carton reinforcement

    • Los pedidos de muestra se envían dentro de 3-5 días hábiles; los pedidos al por mayor dentro de 5-15 días hábiles

  • Multiple logistics options: DHL, FedEx, UPS, air freight, or sea freight based on urgency
  • Real-time tracking number provided once shipped for full supply chain visibility
  • Flexible order quantities: 1 piece MOQ for standard bearings, ideal for emergency repairs

Secure Your 634 Bearings Today

Don’t let bearing issues disrupt your operations. Whether you need a single 634-2RS for a broken machine or bulk 634-2Z units for production lines, we have the inventory and expertise to meet your needs. Send us your bearing型号, application details, and quantity, and our team will provide a competitive quote within 24 hours—so you can get back to productive work faster.

Preguntas Frecuentes

P: ¿Son estos rodamientos genuinos ?

A: Yes, we are an authorized supplier of genuine NSK bearings. Each unit is sourced directly from NSK and comes with full traceability documentation to verify authenticity.

Q: How do I confirm if the 634 series is compatible with my equipment?

A: Provide your equipment model or technical specifications (load, speed, operating conditions), and our technical team will confirm the correct bearing type and specifications for your application.

P: ¿Cuál es la política de garantía para estos rodamientos?

A: We offer a 12-month warranty from the date of receipt. Manufacturing defects are covered by free replacement or refund, with support provided for qualified issues.

Q: What is the minimum order quantity for the 634 series?

A: The minimum order quantity is 1 piece for standard bearings, allowing flexibility for emergency repairs or small-scale projects.

P: ¿Qué tan rápido puedo recibir mi pedido?

A: Sample orders are shipped within 3-5 working days, and bulk orders within 5-15 working days. We offer express shipping options for urgent requirements.

Q: ¿Cómo puedo verificar la autenticidad de los rodamientos al recibirlos?

A: Genuine NSK bearings feature laser-etched markings, original packaging with security labels, and serial numbers that can be verified through NSK’s official channels. We also provide detailed traceability documents with each order.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.

Tags

4x16x5mm Ball Bearing 634 Bearing 634-2RS Bearing 634-2Z Bearing Deep Groove Ball Bearing for Industrial Use High Precision 634-2RS Bearing High Precision Deep Groove Ball Bearing Industrial Machinery Bearing
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