Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | 21307 |
| Feature | Long Life, High Speed, Low Noise |
| Specification | 35x80x21mm |
| Trademark | NTN |
| Origin | Japan |
| HS Code | 8482300000 |
| Customerized | Customizable |
| Sample | Available |
| Transport Package | Carton Pallet |
| Package Size | 5.50cm * 10.00cm * 4.50cm |
| Package Gross Weight | 0.550kg |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Automotive | Gearboxes, Transmission Systems |
| General Machinery | Industrial Fans, Conveyors |
| Manufacturing | Motor Assemblies, Precision Gear Drives |
Stop Gearbox Failures – NTN 21307 Spherical Roller Bearings Deliver Reliable Performance
Gearbox downtime costs manufacturers thousands in lost production daily. Many face counterfeit bearings that fail prematurely, or multi-tier suppliers with 30–50% longer lead times that disrupt scheduling. When precision matters, choosing the wrong bearing isn’t just a part replacement issue—it’s a risk to your entire operation.
Genuine NTN 21307 Bearings: In Stock and Engineered for Gearbox Demands
As an official NTN distributor, we supply the High Precision NTN Spherical Roller Bearing 21307 (35x80x21mm) directly from authorized channels. This bearing combines high speed capability with low noise operation, making it ideal for gearboxes where smooth power transmission and extended service life are critical. Our WMS real-time inventory ensures you get the bearings you need without unnecessary delays.
Engineered for High-Stress Gearbox Environments
The NTN 21307 spherical roller bearing excels in applications with heavy radial loads and moderate axial loads—common in automotive and industrial gearboxes. Its design accommodates misalignment, reducing stress on shafts and housings during operation. Whether in continuous duty automotive transmissions or variable-speed industrial gear drives, this bearing maintains performance under fluctuating loads and speeds.
Technical Features That Maximize Gearbox Efficiency
The 21307’s 35mm bore, 80mm outer diameter, and 21mm width balance compact size with load-bearing capacity. Its low noise特性 minimizes operational sound in noise-sensitive environments like manufacturing plants. The long life design reduces maintenance intervals, while high speed capability ensures compatibility with modern gearbox designs running at elevated RPMs. For OEMs, customizable options allow tailoring to specific gearbox requirements without compromising NTN’s strict quality standards.
Avoid the Hidden Costs of Counterfeit Gearbox Bearings
Non-genuine bearings often cut corners on material quality and precision, leading to 50% shorter service life in gearbox applications. This means more frequent replacements, unplanned downtime, and potential damage to adjacent components like gears and shafts. Our ISO 9001 compliant three-level inspection ensures every NTN 21307 bearing meets原厂 specifications, eliminating the risk of counterfeit-related failures and their associated costs.
Why Global Manufacturers Trust Our NTN Bearings
With over 10 years serving 50+ countries, we deliver more than just bearings—we provide supply chain reliability. As an official NTN distributor, every 21307 bearing comes with full traceability documentation, ensuring compliance with export and quality standards. Our technical team offers pre-purchase model selection support and post-delivery installation guidance, while global door-to-door logistics ensures on-time delivery to your production line. We reserve dedicated inventory for long-term partners, so you never face unexpected stockouts.
Packaging & Shipping
- Original NTN packaging with protective carton pallet for secure transport
- Sample available for quality verification before mass orders
- 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—supports both emergency repairs and bulk OEM production
Get Your NTN 21307 Bearings Shipped Today
Don’t let gearbox downtime impact your production schedule. Send us your order quantity and gearbox specifications, and we’ll issue a formal quotation with brand authorization within 24 hours. With our ready inventory, you can have genuine NTN 21307 bearings delivered to your facility in days, not weeks.
Frequently Asked Questions
Q: Are these genuine NTN bearings?
A: Yes, we are an official NTN authorized distributor. Every bearing comes with full traceability documentation and brand authorization certificates to verify authenticity.
Q: How do I confirm if the 21307 fits my gearbox?
A: Provide your gearbox model or operating parameters (load, speed, temperature), and our technical team will verify compatibility and provide选型 recommendations at no cost.
Q: What is your warranty policy?
A: We stand by NTN’s原厂 warranty standards. Any manufacturing defects will be replaced unconditionally with proper documentation of failure.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 piece, supporting both emergency maintenance and large-scale OEM production requirements.
Q: How long does shipping take?
A: In-stock bearings ship within 3–7 business days via your choice of DHL, FedEx, UPS, air, or sea freight, with tracking provided.
Q: How can I verify the bearing’s authenticity upon receipt?
A: Check the NTN laser marking on the bearing, verify the packaging’s anti-counterfeit 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.
