NTN 21307 Spherical Roller Bearing 35x80x21mm for Automotive Gearbox Long Life

Product Specifications

Application Industries

Stop Gearbox Downtime with Genuine NTN 21307 Spherical Roller Bearings

Automotive manufacturers and maintenance teams know the frustration of unexpected gearbox failures. A single bearing failure can halt production lines, delay vehicle deliveries, and create cascading maintenance costs. Sourcing reliable replacement bearings often means juggling multiple suppliers, facing long lead times for genuine parts, and struggling to verify product authenticity—especially for critical components like spherical roller bearings in high-stress gearbox applications.

Genuine NTN 21307 Bearings: In Stock and Quality-Assured

As an official NTN distributor, we stock the NTN 21307 spherical roller bearing (35x80x21mm) specifically engineered for automotive gearboxes. This bearing combines long life, high-speed performance, and low noise operation—key requirements for smooth gearbox function. Our ISO 9001 quality control system ensures every unit meets NTN's strict standards, with complete documentation for traceability. Whether you need a single unit for emergency repairs or bulk orders for production lines, we eliminate the hassle of multi-supplier coordination.

Engineered for Demanding Gearbox Environments

The NTN 21307 spherical roller bearing excels in the harsh conditions of automotive gearboxes, where it withstands heavy radial loads, moderate axial loads, and continuous high-speed rotation. Its design accommodates slight misalignment, reducing stress on adjacent components and extending overall gearbox life. This makes it ideal for passenger vehicles, commercial trucks, and industrial machinery requiring reliable power transmission—applications where bearing failure would lead to significant downtime and repair expenses.

Key Features That Deliver Performance

The 35x80x21mm dimensions of the NTN 21307 ensure precise fit in standard gearbox assemblies, eliminating the need for modifications during installation. Its long-life construction reduces replacement frequency, lowering maintenance costs over the equipment lifecycle. High-speed capability allows operation at the rotational velocities typical in automotive transmissions without compromising noise levels, a critical factor for driver comfort. The bearing's low-noise特性 also minimizes vibration, contributing to smoother gear shifts and extended component wear life.

Why Genuine NTN Beats Counterfeit Alternatives

Choosing genuine NTN bearings over counterfeit products protects your operations from hidden costs. Counterfeit bearings often fail prematurely due to substandard materials and imprecise manufacturing, leading to gearbox damage, unplanned downtime, and safety risks. A single counterfeit-related failure can cost thousands in repairs and lost production—far exceeding the initial savings on cheaper parts. Our authorized supply chain guarantees that every NTN 21307 bearing meets original equipment manufacturer (OEM) specifications, ensuring consistent performance and reliability.

Why 1,100+ Clients Trust Our Bearing Solutions

Packaging & Shipping

• Original NTN packaging with protective carton and pallet for secure transport
• Standard delivery: 3-7 business days for in-stock items
• Multiple logistics options: DHL, FedEx, UPS, air freight, or sea freight
• Real-time tracking provided for all shipments
• Minimum order quantity: 1 unit, supporting both emergency repairs and bulk orders

Get Your NTN 21307 Bearing Today

Don’t let gearbox downtime impact your operations. Whether you need to replace a failed bearing or stock up for planned maintenance, our genuine NTN 21307 spherical roller bearings are ready to ship. Send us your order details, including quantity and application requirements, and our team will provide a quote within one working day—helping you get back to production faster.

Frequently Asked Questions