Product Specifications
| Parameter |
Details |
| Model NO. |
RNA4922 |
| 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 |
125*150*40 mm |
| Origin |
China |
| HS Code |
8482102000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Machinery, Reducers |
| Automotive |
Transmission Systems, Gearboxes |
| Agricultural Machinery |
Harvesters, Tractors |
| Construction |
Excavators, Heavy Load Equipment |
Reduce Downtime with Precision Needle Roller Bearing RNA49 Series for Industrial Machinery
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. When low-quality bearings fail prematurely, production lines stop, maintenance costs rise, and deadlines are missed. Sourcing reliable bearings with flexible order options and quick delivery can be a constant challenge for maintenance teams and procurement managers alike.
Precision Needle Roller Bearings Engineered for Reliable Performance
Our RNA4922, RNA4924, and RNA4926 Needle Roller Bearings address these challenges with P0-P4 precision ratings and robust construction. As an integrated manufacturer with full R&D capabilities and ISO9001 certification, we ensure consistent quality across every bearing. Whether you need standard components for machine tools or custom solutions for specialized equipment, our 1pc MOQ and 3-7 day delivery time support both scheduled maintenance and urgent repairs.
Optimal Performance in Demanding Industrial Environments
These needle roller bearings excel in applications requiring high radial load capacity in limited installation space. The closed design without inner and outer rings allows for direct mounting on shafts and housings, making them ideal for compact gearboxes, printing presses, and conveyor systems. With proper lubrication (grease or oil), they maintain performance in continuous operation, supporting the heavy loads and precise motion control critical to industrial machinery efficiency.
Key Technical Features That Ensure Longevity
The precision rating (P0-P4) directly impacts operational accuracy – higher precision grades like P4 minimize runout, reducing vibration and noise in high-speed applications. Clearance options (C0, C3, C4) allow customization for thermal expansion needs; C3 and C4 clearances are particularly valuable in equipment operating at elevated temperatures. Constructed from high-quality bearing steel, these bearings offer excellent wear resistance, while the closed design protects internal components from contaminants, extending service life in harsh industrial settings.
Why Quality Bearings Lower Total Operating Costs
Choosing genuine precision needle roller bearings reduces the hidden costs associated with counterfeit or low-quality alternatives. Early bearing failure can damage adjacent components, leading to expensive repairs and unplanned downtime. Our bearings, backed by a 12-month global warranty, provide predictable performance and longer service intervals, lowering maintenance frequency and total lifecycle costs. For industrial machinery makers, this reliability translates to better equipment uptime and enhanced customer satisfaction.
Your Trusted Partner for Bearing Solutions Since 2005
With over 18 years of experience serving global buyers across Europe, America, and Southeast Asia, Jinan Saifan Bearing combines manufacturing expertise with customer-focused service. Our QC lab conducts rigorous testing to ensure each bearing meets specifications, while our technical team provides free guidance on selection and application. We offer full OEM/ODM customization to meet unique requirements, and our defect replacement policy ensures peace of mind. Supported by stable production capacity and competitive pricing, we aim to build long-term partnerships with industrial equipment manufacturers and distributors worldwide.
Packaging & Shipping
- Secure carton and pallet packaging to prevent damage during transit
- 3-7 days delivery time for standard items
- Multiple shipping options including express, air, and sea freight
- Real-time logistics tracking provided for all orders
- 1pc minimum order quantity available for standard bearings
Get Your Precision Needle Roller Bearings Today
Don’t let bearing issues disrupt your production schedule. Whether you need RNA4922, RNA4924, RNA4926, or other precision bearings, our team is ready to fulfill your order quickly. Contact us with your specific requirements, and we’ll ensure you receive the right bearings for your industrial machinery applications.
Frequently Asked Questions
Q: Are these needle roller bearings genuine and traceable?
A: Yes, all our bearings are manufactured in our ISO9001 and ISO14001 certified facility, with full production traceability. We provide documentation to verify authenticity and quality standards.
Q: How can I confirm the RNA49 series is suitable for my equipment?
A: Provide your equipment model, operating conditions (load, speed, temperature), and required dimensions. Our technical team will analyze your needs and confirm compatibility or recommend alternatives.
Q: What is the warranty coverage for these bearings?
A: We offer a 12-month global warranty covering manufacturing defects. If a bearing fails under normal operating conditions within the warranty period, we provide free replacement or refund.
Q: What is the minimum order quantity for RNA4922, RNA4924, or RNA4926 bearings?
A: Standard items have a 1pc MOQ, allowing you to order small quantities for maintenance or prototyping. Bulk orders receive volume pricing and priority production scheduling.
Q: How quickly can I receive my order?
A: Standard bearings are typically shipped within 3-7 days. For urgent requirements, contact us to discuss expedited production and shipping options.
Q: Do you offer custom designs for needle roller bearings?
A: Yes, we provide full OEM/ODM customization services. Our engineering team can modify dimensions, precision grades, materials, and lubrication to meet your specific application needs.
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