Product Specifications
| Parameter |
Details |
| Model NO. |
21306 |
| Feature |
Long Life, High Speed, Low Noise |
| Specification |
30x72x19mm |
| HS Code |
8482300000 |
Application Industries
| Industry |
Typical Equipment |
| Automotive |
Gearboxes, Transmission Systems |
| Industrial Manufacturing |
Electric Motors, Fans |
Reduce Downtime with Reliable Spherical Roller Bearing 21306
Gearbox failures often stem from substandard bearings that wear prematurely, causing costly production halts and emergency repairs. Many buyers struggle with inconsistent supply chains, where minimum order quantities force overstocking or long lead times delay maintenance. Mismatched bearing specifications further shorten service life, turning a simple replacement into a recurring problem.
Spherical Roller Bearing 21306: Engineered for Gearbox Performance
Our 21306 Spherical Roller Bearing addresses these challenges with precision engineering and flexible supply. Designed for gearboxes, this 30x72x19mm bearing combines long life, high speed, and low noise operation—critical for maintaining smooth power transmission. With 15+ years of bearing manufacturing experience, we ensure each unit meets strict quality standards, supported by a 12-month warranty and responsive technical support.
Optimal Performance in Demanding Gearbox Conditions
Spherical roller bearings excel in applications with heavy radial loads and moderate axial loads, making them ideal for gearboxes in automotive and industrial machinery. The 21306 model’s robust design accommodates misalignment, reducing stress on shafts and extending equipment life. Whether used in car transmissions or industrial fans, its high-speed capability ensures efficient operation without compromising durability.
Key Features That Deliver Long-Term Value
The 21306 Spherical Roller Bearing’s 30mm bore diameter, 72mm outer diameter, and 19mm width are precision-machined to fit standard gearbox configurations. Its low noise特性 minimizes operational disruptions, while the long-life design reduces replacement frequency. Customizable options allow adaptation to specific application requirements, ensuring optimal performance in diverse operating conditions.
Why Genuine Bearings Matter for Your Bottom Line
Counterfeit bearings may offer lower upfront costs, but they often fail within months, leading to unplanned downtime and expensive repairs. Our bearings adhere to ISO industrial standards, ensuring consistent quality and reliability. By investing in genuine 21306 bearings, you avoid hidden costs associated with premature failure, including production losses and secondary equipment damage.
Your Trusted Bearing Partner Since 2005
Jinan Saifan Bearing Co., Ltd brings decades of manufacturing and export experience to every order. Our ISO 9001:2015 and ISO 14001 certifications validate our commitment to quality and environmental responsibility. We offer flexible ordering with 1 piece MOQ for standard bearings, 3-5 day sample delivery, and 5-15 day bulk production lead times. Our professional R&D and QC teams ensure each bearing meets P0-P4 precision grades, supported by free technical guidance on selection and maintenance.
Packaging & Shipping
- Carton pallet packaging for secure transport
- Sample orders shipped within 3-5 working days
- Bulk orders delivered in 5-15 working days
- Multiple logistics options available to global destinations
- 1 piece MOQ for standard bearings, sample orders without MOQ
Get Your 21306 Bearing Today
Don’t let gearbox downtime impact your productivity. Contact us with your bearing requirements, and our team will provide a tailored quote within 24 hours. With fast delivery and reliable performance, the Spherical Roller Bearing 21306 is the smart choice for minimizing maintenance costs and maximizing equipment uptime.
Frequently Asked Questions
Q: Is this a genuine bearing?
A: Yes, we supply genuine bearings and ensure full traceability through our certified supply chain.
Q: How do I confirm if the 21306 bearing fits my gearbox?
A: Provide your equipment model or technical specifications, and our technical team will verify compatibility.
Q: What is the warranty period for this bearing?
A: We offer a 12-month warranty from the date of delivery, covering manufacturing defects.
Q: What is the minimum order quantity?
A: Standard bearings have a 1 piece MOQ; sample orders are available without MOQ.
Q: How long does shipping take?
A: Sample orders ship in 3-5 working days, bulk orders in 5-15 working days, with global logistics options.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
