Product Specifications
| Parameter |
Details |
| Model Designation |
3304-TN9 |
| Type |
Double Row Angular Contact Ball Bearing |
| Rows Number |
Double |
| Load Direction |
Radial |
| Material |
Bearing Steel |
| Precision Rating |
P0, P2, P4, P5, P6 |
| Structure |
Angular Contact |
| Cage Material |
Nylon Cage (TN9) |
| Lubrication |
Oil Grease |
| Separated Design |
Separated |
Application Industries
| Industry |
Typical Equipment |
| Machine Tool Manufacturing |
CNC Lathes, Machining Centers, Grinding Machines |
| Industrial Machinery |
Spindles, Gearboxes, Precision Rotating Components |
| Automotive Parts Production |
Transmission Assembly Equipment, Robotic Arms |
| New Energy Equipment |
Solar Panel Rotation Systems, Precision Conveyors |
Eliminate Machine Tool Downtime with 3304-TN9 Double Row Angular Contact Ball Bearing
Machine tool operators know the frustration of unexpected spindle failures—costing hours of production and thousands in repairs. Many face the dilemma of choosing between overpriced original bearings with long lead times or cheap alternatives that fail prematurely. The 3304-TN9 Double Row Angular Contact Ball Bearing addresses these pain points directly, combining precision engineering with reliable supply.
Precision Engineered for Machine Tool Stability
Our 3304-TN9 Double Row Angular Contact Ball Bearing is designed to deliver consistent performance in high-speed machine tool applications. With P0 to P4 precision grades and a nylon cage (TN9) that reduces friction and heat buildup, this bearing maintains accuracy even under continuous operation. As a professional bearing manufacturer with decades of experience, we ensure each unit meets strict ISO standards, eliminating the risks of dimensional inconsistencies that plague generic alternatives.
Optimal Performance in Critical Machining Conditions
This bearing excels in scenarios requiring simultaneous radial and axial load handling—common in CNC machine spindles and precision rotary tables. The double row design provides higher rigidity compared to single row bearings, while the separated structure allows for easy mounting and dismounting during maintenance. Whether operating at high speeds or under variable loads, the 3304-TN9 maintains stable rotation, critical for achieving tight tolerance machining.
Key Technical Features That Matter
The nylon cage (TN9) is a standout feature, offering superior lubrication retention and reduced noise compared to metal cages—essential for precision machining environments where quiet operation is valued. Precision grades from P0 to P4 ensure compatibility with applications ranging from general machinery to high-precision tooling, with tighter tolerances minimizing vibration and improving surface finish quality. The bearing steel construction provides excellent durability, while the separated design simplifies installation, reducing maintenance time and labor costs.
Why Compromising on Bearings Costs More in the Long Run
Choosing non-genuine or low-quality bearings may seem cost-effective initially, but the hidden expenses add up quickly. A failed bearing can cause spindle damage, leading to repair costs 10 times the bearing price and weeks of production loss. Our 3304-TN9 meets ISO, ABMA, and DIN standards, backed by a 12-month warranty, ensuring reliable performance and reducing total cost of ownership. With strict incoming material inspections and full-process quality control, we eliminate the risks of premature failure.
Your Trusted Partner for Bearing Solutions
With over 18 years of manufacturing and export experience, Jinan Saifan Bearing serves customers in Europe, North America, Southeast Asia, and the Middle East. Our ISO 9001:2015 and ISO 14001 certifications validate our commitment to quality and environmental responsibility. We offer flexible order policies, including 1 piece MOQ for standard bearings and 3-5 day delivery for samples, ensuring you get the bearings you need when you need them. Our technical team provides free guidance on selection, installation, and maintenance, helping you optimize bearing performance and lifespan.
Packaging & Shipping
- Carton packaging with pallet reinforcement for secure transport
- 3-5 working days delivery for sample orders, 5-15 days for bulk orders
- Multiple logistics options: DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking provided for all shipments
- 1 piece MOQ for standard bearings, ideal for emergency repairs or small-batch needs
Get Your 3304-TN9 Bearing Today
Don’t let bearing issues disrupt your production schedule. Whether you need a single unit for emergency repair or bulk orders for manufacturing, we ensure prompt delivery and reliable performance. Send us your requirements, and our team will provide a detailed quote within 24 hours.
Frequently Asked Questions
Q: Is this a genuine Saifan bearing?
A: Yes, all our bearings are manufactured in-house under strict quality control, with full traceability from raw materials to finished products. We provide certification of compliance with ISO standards upon request.
Q: How do I confirm if the 3304-TN9 is suitable for my machine tool?
A: Our technical team can assist with选型 based on your equipment model, operating speed, load requirements, and precision needs. Provide these details, and we’ll recommend the optimal bearing solution.
Q: What is the warranty period for this bearing?
A: We offer a 12-month warranty from the date of delivery, covering manufacturing defects. Defective products can be replaced or refunded according to our after-sales policy.
Q: What is the minimum order quantity?
A: The minimum order quantity for standard bearings like the 3304-TN9 is 1 piece, supporting both small repairs and large-scale production needs.
Q: How long does shipping take to Europe/North America?
A: Sample orders typically arrive in 3-5 working days via express courier (DHL/FedEx/UPS). Bulk orders take 5-15 working days depending on quantity and shipping method.
Q: How can I verify the authenticity of the bearing?
A: Each bearing is marked with our brand identifier and batch number. We also provide a certificate of conformity with each order, and our technical team can assist with verification if needed.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
