Product Specifications
| Parameter |
Details |
| Model NO. |
RNA4909 |
| Load Direction |
Radial Bearing |
| Style |
Without Outer Ring, Without Inner Ring |
| Material |
Bearing Steel |
| Type |
Closed |
| Product Name |
Needle Roller Bearing |
| Lubrication |
Grease or Oil |
| Precision Rating |
P0 P6 P5 P4 P2 |
| Clearance |
C0 C3 C4 |
| Delivery Time |
3-7days |
| Service |
OEM ODM |
| Transport Package |
Carton Pallet |
| Specification |
52*68*22 mm |
| Origin |
China |
| HS Code |
8482102000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Gearboxes, Reducers, Printing Equipment |
| Automotive |
Transmission Systems, Auxiliary Equipment |
| Agricultural Machinery |
Tractors, Harvesters, Heavy-Duty Farming Equipment |
| Home Appliances |
Washing Machines, Air Conditioners, Power Tools |
Stop Production Delays with Precision Needle Roller Bearings RNA4909 RNA4910 RNA4911
Industrial machinery operators know the cost of unexpected downtime—missed deadlines, maintenance overtime, and disrupted workflows. When bearings fail prematurely due to poor precision or material quality, the impact ripples through entire production lines. Sourcing reliable needle roller bearings with consistent dimensions and performance can mean the difference between smooth operation and costly interruptions.
Engineered for Reliable Performance in Demanding Applications
Our Needle Roller Bearing RNA4909, RNA4910, and RNA4911 series are designed to address these challenges. With a specification of 52x68x22mm and precision grades from P0 to P4, these bearings deliver stable rotation and load capacity for industrial machinery. As a professional manufacturer with decades of experience, we ensure each bearing meets strict quality standards, supported by advanced production lines and in-house testing facilities that verify dimensional accuracy and noise levels.
Optimal Performance in High-Load, Compact Spaces
Needle roller bearings excel in applications where radial space is limited but high load capacity is required. The RNA4909, RNA4910, and RNA4911 models, with their closed design and bearing steel construction, are ideal for transmitting heavy radial loads in machine tools, gearboxes, and reducers. Their compact structure allows for integration into tight assemblies without compromising on durability, making them a trusted choice for industrial machinery manufacturers seeking reliable component performance.
Key Technical Features That Ensure Longevity
The precision rating of these needle roller bearings—ranging from P0 to P4—directly impacts operational stability. Higher precision grades (P4) minimize radial runout, reducing vibration and noise in high-speed applications, while standard grades (P0) offer cost-effective reliability for general industrial use. Clearance options (C0, C3, C4) allow customization based on thermal expansion needs, ensuring proper fit and reducing premature wear. The closed design protects internal components from contaminants, extending service life in dusty or humid environments common in manufacturing settings.
Why Compromising on Bearing Quality Costs More in the Long Run
Choosing low-quality needle roller bearings may seem like a budget-friendly decision, but the hidden costs add up. Bearings with inconsistent material density or imprecise rolling elements can lead to uneven load distribution, causing early failure and damaging connected components. Our bearings, made from high-grade bearing steel and manufactured under strict ISO 9001:2015 quality controls, reduce the risk of unexpected breakdowns. With a 12-month warranty and comprehensive after-sales support, we stand behind the performance of every bearing, ensuring lower total cost of ownership compared to inferior alternatives.
Your Trusted Partner for Precision Bearings Since 2005
Jinan Saifan Bearing Co., Ltd has served global clients across Europe, North America, and Southeast Asia since 2005, building a reputation for reliability and technical expertise. Our in-house R&D team and experienced QC staff ensure each bearing meets international standards (ISO, ABMA, DIN), while our flexible order policies—including 1 piece MOQ for standard bearings and 3-5 day sample delivery—support both small-scale repairs and large production runs. We offer free technical guidance on selection and installation, backed by remote troubleshooting to keep your machinery operating at peak efficiency.
Packaging & Shipping
- Secure carton and pallet packaging to prevent damage during transit
- 3-7 days delivery for standard orders, with expedited options available
- Global shipping via DHL, FedEx, UPS, air, or sea freight
- Real-time logistics tracking provided for all shipments
- 1 piece minimum order quantity to support emergency maintenance needs
Get Your Precision Needle Roller Bearings Today
Don’t let bearing-related downtime affect your productivity. Whether you need RNA4909, RNA4910, or RNA4911 bearings for machine tools, gearboxes, or industrial equipment, we have the inventory and expertise to meet your requirements. Contact us with your specific model, quantity, and application details to receive a tailored quote and fast delivery.
Frequently Asked Questions
Q: Are these needle roller bearings genuine and traceable?
A: Yes, all our bearings are manufactured in-house under strict quality controls and come with full traceability documentation. We are certified ISO 9001:2015 and ISO 14001, ensuring compliance with international standards.
Q: How do I confirm if the RNA4909 bearing fits my equipment?
A: Provide your equipment model, operating conditions (load, speed, temperature), and required dimensions. Our technical team will verify compatibility and recommend the appropriate precision grade and clearance.
Q: What is the warranty period for these bearings?
A: We offer a 12-month warranty from the date of delivery, covering manufacturing defects. Qualified defective products can be replaced or refunded.
Q: What is the minimum order quantity?
A: Standard bearings like RNA4909 have a 1 piece MOQ, supporting both small repairs and bulk orders. Customized orders have negotiable quantities.
Q: How quickly can I receive my order?
A: Sample orders ship within 3-5 working days, and bulk orders within 5-15 working days. We also offer expedited shipping options for urgent needs.
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