-- SKF Authorized Engineering Partner
Keep your machinery running smoothly with reliable Timken Cylindrical Roller Bearings designed for consistent performance under radial loads. These NJ309em, NJ310em, and NJ311em models deliver the durability you need, whether lubricated with grease or oil, to minimize downtime and extend equipment life.
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Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
| Parameter | Details |
|---|---|
| Model Number | 6805 |
| Lubrication | Grease or Oil |
| Precision Rating | P0 P6 P5 P4 |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Service | OEM ODM |
| Aligning | Non-Aligning Bearing |
| Separated | Unseparated |
| Rows Number | Single |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Contact Angle | 0° |
| Specification | 20*47*14 mm |
| Origin | China |
| HS Code | 8482102000 |
| Industry | Typical Applications |
|---|---|
| Automation Equipment | Conveyor systems, linear motion guides |
| Mechanical Engineering | Machine tool spindles, gearboxes |
| Industrial Machinery | Hydraulic pumps, electric motors |
Finding the right cylindrical roller bearing for your equipment can be challenging. Mismatched dimensions lead to installation delays, while low-quality bearings often fail prematurely, causing costly downtime. Sourcing from multiple suppliers for different brands only adds complexity to your procurement process.
The Timken NJ309em, NJ310em, and NJ311em cylindrical roller bearings address these challenges with precision-engineered design. As a professional bearing supplier with ISO 9001 certified processes, we ensure each bearing meets strict quality standards. Our extensive inventory covers both自有 brands and international models, allowing you to source all required bearings from a single trusted partner.
These single-row cylindrical roller bearings are specifically designed for radial load applications, making them ideal for high-speed rotating machinery. With a contact angle of 0°, they excel in scenarios where axial movement is minimal but radial force is significant. The non-aligning design ensures stable operation in equipment with precise shaft alignment, such as electric motors and gearboxes.
The bearing steel construction provides excellent durability and wear resistance, critical for extending service life in industrial environments. Precision ratings from P0 to P4 allow customization based on application requirements—higher precision grades (P4) suit machine tools, while standard grades (P0) work well in general industrial settings. Vibration classes Z1V1 to Z3V3 further refine performance, with Z3V3 offering the lowest vibration levels for noise-sensitive applications. The unseparated design simplifies installation and maintenance, reducing assembly time.
Choosing the right cylindrical roller bearing directly impacts your equipment’s total cost of ownership. Inferior bearings with substandard material hardness or imprecise dimensions lead to early wear, increased vibration, and potential equipment damage. Our bearings undergo rigorous testing, including dimensional checks and surface hardness verification, ensuring they meet performance expectations. This attention to quality reduces replacement frequency and maintenance costs, delivering better long-term value than cheaper alternatives.
Our manufacturing and inspection processes comply with ISO 9001 standards, from raw material testing to final product verification. Each bearing undergoes dimensional accuracy, hardness, and surface treatment checks to ensure consistent quality. We provide a warranty period covering manufacturing defects, with clear terms for returns and replacements. Our comprehensive supply chain includes both standard and custom options, supporting OEM/ODM requirements to match your exact specifications.
Whether you need Timken NJ309em, NJ310em, NJ311em, or other cylindrical roller bearing models, we can assist. Provide your required model, dimensions, and quantity, and our team will quickly respond with pricing and availability. With our extensive brand coverage, you can consolidate your bearing采购 through a single supplier.
Q: Do you supply bearings from other brands besides those mentioned?
A: Yes, we support inquiries for all bearing brands and models, providing supply according to your specified brand or technical requirements.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment’s required bearing dimensions (bore, outer diameter, width) or existing model number, and our technical team will verify compatibility.
Q: What is your warranty policy for these bearings?
A: We offer a warranty period covering manufacturing defects. Specific terms are detailed in the sales contract, with options for returns or replacements as applicable.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum order quantities, including small batch orders suitable for testing or maintenance needs.
Q: How long does shipping take, and what methods are available?
A: In-stock bearings ship immediately. Shipping methods include express (3-5 days), air freight (7-10 days), or sea freight (varied by destination), with options tailored to your timeline.
Q: Can you produce custom bearings to specific designs?
A: Yes, we support OEM/ODM customization based on your drawings, specifications, or sample requirements.
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Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
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.
Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
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.
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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.
Regarding: Timken NJ309em NJ310em NJ311em Cylindrical Roller Bearing
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