Deep Groove Ball Bearing
NSK N305em NJ305em NF305em High Precision Cylindrical Roller Bearing
ISO 9001 TS 16949
Genuine SKF
50+ Countries
24h Response

-- SKF Authorized Engineering Partner

NSK N305em NJ305em NF305em High Precision Cylindrical Roller Bearing

Ensure smooth, high-precision operation in your machinery with the NSK N305em Bearing, designed to deliver reliable performance even under demanding conditions. This cylindrical roller bearing minimizes vibration with Z1V1 to Z3V3 precision classes, reducing wear on connected components and extending your equipment’s lifespan.

  • Choose between grease or oil lubrication to match your specific application needs
  • Rich stock availability ensures quick delivery via express, road, train, air, or sea
  • 25*42*9mm specification fits standard industrial setups, with OEM/ODM services available for custom requirements

Technical Specifications
Product Name
NSK N305em NJ305em NF305em High Precision 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.

Product Specifications

Parameter Details
Model Number W61905-2RS1, W61905-2Z, W6205
Specification (d x D x B) 25*42*9mm
Stock Rich Stocks
Grease Technology High
Lubrication Grease or Oil
Vibration Z1V1, Z2V2, Z3V3
Service OEM, ODM
Delivery by Express, Road, Train, Air, Sea
Sample Available
on-Time Delivery Rate 100.0%
Response Time Less Than 0.5h
Transport Package Carton, Pallet
Trademark BDL, NTN, NSK, NMB, Koyo, NACHI, Timken
Origin China
HS Code 8482102000
Production Capacity 200000000 Pieces/Year

Application Suitability

Industry Typical Applications
Automation Equipment Conveyor systems, precision machinery
Automotive Wheel hubs, transmission components
General Machinery Pumps, motors, gearboxes

Finding the Right Cylindrical Roller Bearing? Avoid Common Selection Mistakes

Selecting the correct cylindrical roller bearing can be challenging with the variety of models and brands available. Many buyers face issues like mismatched dimensions causing installation delays or low-quality bearings leading to premature wear and equipment downtime. Sourcing from multiple suppliers to compare options further complicates the process, wasting valuable time.

NSK N305em Series: Engineered for Precision and Reliability

The NSK N305em, NJ305em, and NF305em high precision cylindrical roller bearings address these challenges with their strict manufacturing standards and versatile design. As a professional bearing supplier, we offer comprehensive access to both international brands like NSK and domestic alternatives, ensuring you find the exact match for your application. With rich stock availability, we can quickly fulfill orders for these bearings, which are ideal for high-speed rotating machinery in automation and automotive sectors.

Optimal Performance in Demanding Conditions

This cylindrical roller bearing series excels in applications requiring high radial load capacity and precision. With vibration grades Z1V1 to Z3V3, it maintains stable operation even in high-speed environments, reducing noise and extending equipment life. The 25x42x9mm dimensions make it suitable for compact machinery where space is limited, while its compatibility with both grease and oil lubrication allows adaptation to various operating conditions.

Key Engineering Features for Longevity

The NSK N305em series incorporates several critical design elements that enhance performance. The high-grade grease technology ensures effective lubrication retention, minimizing friction and wear under heavy loads. Precision manufacturing tolerances guarantee consistent dimensions, ensuring easy interchangeability with existing setups. The vibration control ratings (Z1V1 to Z3V3) are particularly important for precision equipment, as excessive vibration can lead to component fatigue and accuracy loss over time. Additionally, the bearing’s robust construction supports reliable operation across a range of industrial applications, from conveyors to automotive transmissions.

Total Cost of Ownership: Why Quality Matters

Choosing a high-precision cylindrical roller bearing like the NSK N305em series reduces long-term costs compared to lower-quality alternatives. Inferior bearings often fail prematurely due to substandard materials or imprecise manufacturing, leading to unplanned downtime, maintenance expenses, and potential damage to adjacent components. The NSK series, with its严格的 quality control and durability, minimizes these risks, ensuring longer service intervals and lower total ownership costs. By investing in a reliable bearing, you avoid the hidden expenses of frequent replacements and production interruptions.

Quality Assurance You Can Trust

Our commitment to quality is built on a foundation of ISO 9001 certified processes, from raw material inspection to finished product testing. Each bearing undergoes rigorous checks for dimensions, hardness, and surface treatment to ensure compliance with industry standards. We provide a warranty against manufacturing defects, offering peace of mind and support for your operations. With access to a wide range of brands and models, including the NSK N305em series, we can fulfill custom requirements and ensure you receive the exact bearings your application demands. Our ready stock and efficient delivery options further enhance reliability, ensuring you get the parts you need when you need them.

Packaging & Shipping

  • Packaged in cartons and pallets for secure transport
  • Available from rich stock for immediate dispatch
  • Multiple delivery options: Express, Road, Train, Air, and Sea
  • Low minimum order quantities supported, ideal for both small and large-scale requirements

Get Your Cylindrical Roller Bearing Quote Today

Whether you need the NSK N305em series or other cylindrical roller bearings, we can provide competitive pricing and fast delivery. Share your specific model, dimensions, and quantity requirements, and our team will respond within 0.5 hours to assist with your order. Early confirmation ensures prompt processing and dispatch, minimizing your equipment downtime.

Frequently Asked Questions

Q: Do you supply bearings from other brands or models?

A: Yes, we offer a comprehensive range of bearings from various international and domestic brands. We can source specific models as per your requirements.

Q: How can I confirm if this bearing fits my equipment?

A: Provide your equipment’s required bearing dimensions (d x D x B) or model number, and our technical team will verify compatibility with the NSK N305em series.

Q: What is your warranty policy for these bearings?

A: We provide a warranty against manufacturing defects.具体条款以合同约定为准.

Q: What is the minimum order quantity for the NSK N305em series?

A: We support low minimum order quantities, allowing for small batch purchases and trial orders.

Q: How long does shipping take for in-stock bearings?

A: In-stock bearings are dispatched promptly, with delivery times varying by location and chosen shipping method (Express, Air, Sea, etc.).

Q: Can you provide OEM or ODM services for bearings?

A: Yes, we offer OEM and ODM services to meet custom bearing requirements based on your specifications or drawings.

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.
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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

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

Regarding: NSK N305em NJ305em NF305em High Precision Cylindrical Roller Bearing

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

SKF Authorized Engineering Partner

Need technical support or a custom solution?

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