Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | NJ340EM |
| Outer Dimension | 35mm-180mm |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Radial Bearing |
| Separated | Separated |
| Product Name | Cylindrical Roller Bearing |
| Bore Size | 15-90 mm |
| Structure | Cylindrical |
| Lubrication | Grease or Oil |
| Precision Rating | P0 P6 P5 P4 P2 |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Service | OEM ODM |
| Transport Package | Carton Pallet |
| Specification | 200*420*80mm |
| Trademark | NTN |
| Origin | Japan |
| HS Code | 8482500090 |
| Production Capacity | 100000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Automotive | Transmissions, Axles, Engine Components |
| Motors | Electric Motor Rotors, Generator Shafts |
| General Machinery | Gearboxes, Pumps, Compressors |
| Rail Transit | Train Axle Systems, Locomotive Gearboxes |
Stop Equipment Downtime with Genuine NTN NJ340EM NJ344EM Cylindrical Roller Bearings
OEM manufacturers face critical procurement challenges: counterfeit bearings from gray markets cause early failures and customs clearance delays, while multi-layer distribution disrupts production schedules with unpredictable lead times. When a single bearing failure halts your automotive assembly line or motor production, the costs add up quickly—unplanned downtime, maintenance labor, and missed delivery deadlines.
Genuine NTN Bearings with Full Traceability and Stable Supply
As an official NTN distributor, we eliminate these risks by providing 100% genuine NJ340EM and NJ344EM cylindrical roller bearings directly from the authorized supply chain. Our ISO 9001 compliant three-level quality inspection ensures each bearing meets NTN’s strict standards, while WMS real-time inventory guarantees we can fulfill bulk orders without the delays of traditional distribution networks. These bearings, designed for automotive and machinery OEM applications, deliver the reliability needed to keep your production lines running.
Optimal Performance in Demanding Industrial Conditions
NTN cylindrical roller bearings excel in high-load, high-speed industrial environments. The separated design allows for easy mounting and dismounting, making them ideal for automotive transmissions and motor assemblies where maintenance efficiency is critical. With radial load capacity and precision ratings from P0 to P2, they handle the rigorous demands of continuous operation in general machinery and rail transit systems, ensuring minimal vibration and extended service life even under heavy loads.
Technical Specifications That Drive Reliability
The NJ340EM and NJ344EM bearings feature bearing steel construction, providing exceptional durability and resistance to wear. Their cylindrical structure and non-aligning design optimize load distribution, while precision ratings (P0-P2) ensure tight tolerances for smooth operation in high-precision applications. Vibration classes Z1V1 to Z3V3 allow customization based on noise and stability requirements, from standard industrial use to precision machinery. Lubrication flexibility—grease or oil—enables adaptation to diverse operating temperatures and speed conditions, enhancing versatility across automotive and machinery platforms.
Avoid Hidden Costs: The Value of Authentic NTN Bearings
Counterfeit bearings may offer lower upfront prices, but they come with significant hidden costs: premature failures that cause equipment damage, production line shutdowns, and potential safety risks. Authentic NTN bearings, by contrast, provide consistent performance and full traceability, reducing total cost of ownership through longer service life and minimized downtime. Our three-level quality inspection system further ensures batch consistency, critical for OEMs requiring uniform performance across production runs. When you choose authorized NTN supply, you invest in reliability that protects your production schedule and brand reputation.
Why Global OEMs Choose Our NTN Bearing Solutions
We serve clients in 50+ countries, including automotive OEM factories and machinery manufacturers, by delivering four core strengths: official NTN authorization with complete product traceability, WMS real-time inventory for on-demand supply, a 10+ year technical team providing application-specific support, and global door-to-door logistics. Our standardized OEM process includes 24-hour quotation with authorization certificates, sample testing for quality verification, dedicated inventory reservation, and full-cycle account management. This commitment to transparency and service has made us a preferred partner for production-oriented enterprises worldwide.
Packaging & Shipping
- Original NTN packaging with product traceability labels, secured in carton pallets for protection during transit
- Package Size: 44.00cm * 44.00cm * 10.00cm
- Package Gross Weight: 57.000kg
- Global door-to-door logistics via DHL, FedEx, UPS, air, or sea freight
- Real-time shipment tracking provided from warehouse to delivery
- Flexible order quantities, from small-batch trials to bulk OEM supply
Get Your NTN Bearings Shipped Within 24 Hours of Confirmation
Don’t let bearing procurement delays disrupt your production. Send us your model list (including NJ340EM and NJ344EM), operating conditions, and order volume, and we’ll issue a formal quotation with authorization certificates within 24 hours. Our dedicated account manager will guide you through sample testing, inventory reservation, and logistics, ensuring your bearings arrive when you need them.
Frequently Asked Questions
Q: Are these NTN bearings 100% genuine?
A: Yes, we are an official NTN authorized distributor. Every bearing comes with complete traceability documentation and brand authorization certificates to verify authenticity.
Q: How can I confirm if the NJ340EM is suitable for my equipment?
A: Our technical team with 10+ years of experience can assist with model selection. Provide your equipment type, operating speed, load conditions, and installation requirements for a free compatibility check.
Q: What is your warranty policy for NTN bearings?
A: We adhere to NTN’s official warranty standards, covering manufacturing defects with unconditional replacement or refund. Full after-sales support is provided for any quality-related issues.
Q: What is the minimum order quantity for NJ340EM bearings?
A: We accept orders starting from 1 unit, supporting both emergency maintenance needs and large-scale OEM production requirements.
Q: How long does shipping take to [my country]?
A: With WMS real-time inventory, we ship within 3-7 business days. Delivery time depends on your location: typically 3-5 days via express (DHL/FedEx/UPS), 7-15 days by air, or 30-45 days by sea.
