Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | 604, 605, 606, 607, 608 |
| Separated | Unseparated |
| Rows Number | Single |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Product Name | Deep Groove Ball Bearing |
| Bore Size | 1-500mm |
| Seals Type | Zz, 2RS, Open |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Service | OEM, ODM |
| Transport Package | Carton, Pallet |
| Specification | 50*80*16mm |
| Trademark | NTN |
| Origin | Japan |
| HS Code | 8482102000 |
| Production Capacity | 1000000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Motors | Electric Motors, Motor Spindles, Fan Motors, Compressor Motors |
| General Machinery | Pumps, Conveyors, Machine Tools, Gearboxes |
| Automotive | Power Window Motors, Blower Motors, Accessory Drives |
Prevent Costly Motor Downtime with Genuine NTN 604-608 Deep Groove Ball Bearings
Motor manufacturers and maintenance teams know the frustration: bearings failing prematurely due to counterfeit parts, causing unplanned production stops and repair costs. Multi-tier distribution channels often mean long lead times that disrupt production schedules, while incomplete traceability documents create customs clearance delays and quality disputes.
High-Speed Performance You Can Rely On
Our High Rpm NTN Deep Groove Ball Bearings 604-608 Inch Size are engineered to meet the demands of motor applications, delivering stable performance even at elevated rotational speeds. As an official NTN distributor with WMS real-time inventory, we ensure batch consistency and rapid availability, eliminating the risks of counterfeit products and supply chain delays. These inch-size bearings are ideal for compact motor designs where precision and durability are critical.
Optimal Performance in Motor Applications
NTN 604-608 Bearings excel in high-rpm motor environments, where they承受 radial loads and moderate axial loads with minimal friction. Their single-row design and unseparated construction provide reliable operation in continuous-duty scenarios, such as industrial motor drives and automotive auxiliary motors. The combination of bearing steel material and precision manufacturing ensures consistent performance across temperature variations and operating conditions.
Key Technical Features for Motor Reliability
The performance of these Inch Size Deep Groove Bearings for Motors is defined by critical technical attributes. Precision ratings from P0 to P4 ensure minimal runout and vibration, directly impacting motor efficiency and noise levels—higher precision grades like P5 and P4 are recommended for high-speed motor spindles where accuracy is paramount. Seal options (Zz, 2RS, Open) address different environmental needs: 2RS seals provide effective protection against contaminants in dusty or humid motor enclosures, while open designs suit applications requiring frequent lubrication. Vibration classes Z1V1 to Z3V3 further refine performance, with Z3V3 offering the lowest vibration levels for sensitive motor applications.
Why Genuine NTN Bearings Reduce Total Cost of Ownership
Choosing authentic NTN 604-608 Bearings over gray-market alternatives minimizes long-term costs. Counterfeit bearings often fail early due to substandard materials and manufacturing, leading to motor damage, production downtime, and replacement expenses. Our ISO 9001 compliant three-level quality inspection system ensures each bearing meets NTN’s strict standards, while full product traceability documentation prevents customs issues and liability disputes. The durability of genuine NTN bearings extends motor service life, reducing maintenance frequency and associated labor costs.
Our Commitment to Your Supply Chain Security
As an official authorized NTN distributor, we guarantee 100% genuine products with complete traceability—each bearing can be tracked through our authorized supply chain. With over 10 years of technical expertise, our team provides application-specific guidance, from model selection to installation best practices. We maintain centralized inventory with real-time WMS visibility, supporting flexible order quantities from small batches to bulk OEM supply. Serving clients in 50+ countries, we offer global door-to-door logistics and dedicated account managers who oversee every step from order placement to after-sales support.
Packaging & Shipping
- Original NTN packaging with product identification and traceability labels, secured in cartons and palletized for bulk orders
- Stock items shipped within 3-7 business days from order confirmation
- Global delivery options including DHL, FedEx, UPS, air freight, and sea freight to match your urgency and budget
- Real-time tracking numbers provided once shipment is dispatched
- Minimum order quantity of 1 piece, accommodating emergency repairs and small-batch requirements
Secure Your Motor Bearings Today
Don’t let bearing issues disrupt your production schedule. Send us your required model numbers (604-608), motor specifications, and order quantity, and we’ll provide a formal quotation with traceability certificates within 24 hours. Our team can also support sample testing to verify performance before full-scale orders.
Frequently Asked Questions
Q: Are these NTN bearings genuine?
A: Yes, we are an official authorized NTN distributor. Every bearing comes with complete traceability documentation to confirm authenticity, and we can provide brand authorization certificates upon request.
Q: How do I confirm the right bearing model for my motor?
A: Share your motor’s model number, operating speed, load requirements, and environmental conditions with our technical team. We’ll verify the correct 604-608 series bearing specifications for your application.
Q: What is the warranty policy?
A: All NTN bearings are covered by the manufacturer’s warranty against manufacturing defects. We provide full support for warranty claims and replacements.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 piece, making us suitable for both emergency repairs and large-scale OEM production.
Q: How long does shipping take?
A: In-stock bearings are shipped within 3-7 business days. Delivery time depends on your location—express options like DHL typically take 3-5 days globally, while sea freight is available for cost-effective bulk orders.
Q: How can I verify the authenticity of the bearings?
A: Each bearing includes NTN’s original packaging with holographic labels and serial numbers. We also provide traceability documents linking the product to NTN’s official supply chain, and you can cross-verify details through NTN’s official channels.







