Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | 30302 |
| Lubrication | Grease or Oil |
| Precision Rating | P0 P6 P5 P4 P2 |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Service | OEM ODM |
| Transport Package | Carton Pallet |
| Specification | 15*42*13 mm |
| Trademark | NTN |
| Origin | Japan |
| HS Code | 8482200000 |
| Production Capacity | 1000000 |
| Package Size | 6.20cm * 6.20cm * 3.30cm |
| Package Gross Weight | 0.095kg |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Automotive | Transmissions, Differentials, Axle Systems |
| General Machinery | Reduction Gearboxes, Pumps, Compressors |
| Industrial Manufacturing | Conveyor Systems, Machine Tool Spindles |
| Heavy Machinery | Construction Equipment, Agricultural Machinery |
Stop Production Delays with Genuine NTN 30302 Tapered Roller Bearings
Counterfeit tapered roller bearings often fail prematurely under radial and axial loads, causing unexpected machinery downtime and production line shutdowns. Multi-tier distribution channels stretch delivery times by 30-50%, making it difficult to align with maintenance schedules. Without proper traceability documentation, customs clearance delays and quality disputes become recurring headaches for manufacturers.
Genuine NTN Tapered Roller Bearings: In Stock and Traceable
As an official NTN distributor, we supply 100% genuine 30302, 30303, and 30304 tapered roller bearings with complete traceability. Our WMS real-time inventory system ensures these 15x42x13mm bearings are ready for immediate dispatch, eliminating the long lead times of traditional supply chains. Each unit undergoes our ISO 9001 compliant three-level quality inspection, guaranteeing batch consistency for critical automotive and machinery applications.
Engineered for Radial and Axial Load Performance
NTN 30302 tapered roller bearings excel in applications with combined radial and axial loads, such as automotive transmissions and machinery gearboxes. The precision-tapered raceways distribute load evenly across rolling elements, reducing friction and extending service life under high-torque conditions. Available in precision ratings from P0 to P2, these bearings maintain dimensional stability even at operating temperatures up to 120°C, making them suitable for continuous-duty industrial equipment.
Technical Specifications That Matter
The 15mm bore diameter (d), 42mm outer diameter (D), and 13mm width (B) of the NTN 30302 bearing provide optimal load capacity for medium-duty applications. Precision ratings (P0-P2) control dimensional tolerances and runout, with P5 and P4 grades recommended for high-speed machinery where vibration control is critical. Vibration classes Z1V1 to Z3V3 allow selection based on noise sensitivity—Z3V3 bearings minimize vibration in precision equipment like CNC machine tool spindles. Grease or oil lubrication flexibility ensures compatibility with existing maintenance protocols, while the robust steel cage design maintains roller alignment under shock loads.
Why Genuine NTN Bearings Reduce Total Cost of Ownership
Gray-market bearings may offer lower upfront prices, but their inconsistent material quality and manufacturing defects often lead to premature failure. A single bearing failure in automotive production can cause line shutdowns costing $10,000+ per hour. Genuine NTN 30304 machinery bearings, by contrast, provide predictable service life and reduce unplanned maintenance. Our ISO 9001 quality system and full product traceability eliminate customs clearance issues and liability risks, while our 10+ years technical team helps optimize bearing selection to avoid costly application mismatches.
Why Global Manufacturers Trust Our NTN Supply
We’ve served clients across 50+ countries for over a decade, maintaining direct access to NTN’s OEM supply chain. Our three-level inspection process includes incoming material verification, dimensional testing, and performance sampling before shipment. As an authorized distributor, we provide complete export documentation—including certificate of origin, material test reports, and NTN authorization letters—to ensure smooth customs clearance. Our dedicated account managers track orders from warehouse to delivery, with real-time visibility for production planning. For technical support, our engineers offer application-specific guidance on installation, lubrication, and failure analysis to maximize bearing performance.
Packaging & Shipping
- Original NTN packaging with product批号 and traceability labels, outer carton reinforcement for international shipping
- Stock items dispatched within 3-7 business days from Shanghai warehouse
- Global door-to-door logistics via DHL, FedEx, UPS, or sea/air freight as needed
- Real-time tracking number provided upon shipment for full supply chain visibility
- Minimum order quantity of 1 unit supported for emergency maintenance needs
Get Your NTN Tapered Roller Bearings Shipped Today
Whether you need 30302 automotive bearings for production lines or 30304 machinery bearings for maintenance, our authorized supply chain ensures genuine products with fast delivery. Send your model list, application parameters, and order volume to receive a formal quotation within 24 hours—including brand authorization and traceability documentation.
Frequently Asked Questions
Q: Are these genuine NTN bearings?
A: Yes, we are an official NTN distributor. Every bearing comes with complete traceability documentation and NTN brand authorization to verify authenticity.
Q: How do I confirm if the 30302 bearing fits my equipment?
A: Provide your equipment model or working condition parameters (load, speed, temperature), and our technical team will verify compatibility at no cost.
Q: What is your warranty policy?
A: We follow NTN’s original warranty standards, covering manufacturing defects with unconditional replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit to support both emergency repairs and bulk production needs.
Q: How long does shipping take to [my country]?
A: Stock items ship within 3-7 business days. Transit time depends on destination—typically 3-5 days via express, 2-4 weeks via sea freight.
Q: How can I verify the bearing’s authenticity upon receipt?
A: Check the NTN laser marking on the inner ring, original packaging with holographic labels, and use the traceability code provided to confirm via NTN’s official channels.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
