Product Specifications
| Parameter |
Details |
| Model NO. |
RNA4922 |
| Product Name |
Needle Roller Bearing |
| Load Direction |
Radial Bearing |
| Style |
Without Outer Ring, Without Inner Ring |
| Type |
Closed |
| Material |
Bearing Steel |
| Specification |
125×150×40 mm |
| Precision Rating |
P0, P6, P5, P4, P2 |
| Clearance |
C0, C3, C4 |
| Lubrication |
Grease or Oil |
| Service |
OEM, ODM |
| Delivery Time |
3-7 days |
| Transport Package |
Carton, Pallet |
| Origin |
China |
| HS Code |
8482102000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Gearboxes, Printing Machines, Reducers, Conveyors |
| Automotive |
Transmission Systems, Wheel Hubs, Axle Assemblies |
| Agricultural Machinery |
Tractors, Harvesters, Tillers |
| Engineering Equipment |
Excavators, Loaders, Construction Machinery |
| Manufacturing |
CNC Machines, Spindles, Presses |
Prevent Costly Downtime with RNA4922 Needle Roller Bearing for Industrial Machinery
Industrial machinery operators know the frustration of unexpected bearing failures—downtime that halts production, inflates maintenance costs, and erodes profits. When standard bearings fail prematurely under radial loads, the ripple effect disrupts entire workflows. As a manufacturer with decades of experience supplying bearings to industrial buyers worldwide, we’ve seen how the right precision bearing transforms reliability.
RNA4922: Engineered for Heavy-Duty Industrial Performance
The RNA4922 Needle Roller Bearing addresses these challenges with its robust design and versatile performance. As a radial bearing without inner or outer rings, it delivers high load capacity in compact spaces—ideal for gearboxes, reducers, and printing machines where space is limited. Our 125×150×40 mm closed-type bearing, crafted from premium bearing steel, ensures stable operation even in demanding industrial environments. With 1 piece MOQ for standard products and 3-7 day delivery, we eliminate the barriers of bulk ordering and long lead times.
Optimal Performance in Critical Industrial Workflows
This needle roller bearing excels in applications requiring precise radial load handling, such as conveyor systems and CNC machine spindles. Its closed-type construction minimizes contamination risks, while compatibility with both grease and oil lubrication allows adaptation to varying operating conditions. Whether your machinery operates at moderate speeds or under heavy loads, the RNA4922’s design ensures consistent performance, reducing the need for frequent replacements and unplanned maintenance.
Technical Precision That Drives Machinery Efficiency
The RNA4922’s technical specifications directly impact operational efficiency. Its precision ratings (P0-P4) cater to applications from general industrial use (P0) to high-precision machinery (P4), controlling vibration and ensuring smooth rotation. Clearance options (C0, C3, C4) allow customization for thermal expansion and preload requirements—critical for maintaining accuracy in temperature-fluctuating environments. The use of high-grade bearing steel enhances durability, withstanding wear and extending service life in high-stress operations. These features combine to reduce energy consumption and improve overall machinery performance.
Why Cutting Corners on Bearings Costs More in the Long Run
Choosing low-quality bearings may seem cost-effective initially, but the hidden expenses add up. Premature failures lead to production stoppages, emergency repair costs, and potential damage to adjacent components. Our RNA4922 complies with ISO industrial standards, backed by strict in-house quality control—including dimensional detection and performance testing. Unlike counterfeit bearings, our products come with a 12-month warranty, ensuring you’re protected against manufacturing defects. Investing in genuine, precision-engineered bearings lowers total cost of ownership by minimizing downtime and extending maintenance intervals.
Decades of Expertise You Can Trust
Jinan Saifan Bearing Co., Ltd, founded in 2005, brings decades of manufacturing and export experience to every order. Our integrated capabilities—from independent R&D to global sales—ensure consistent quality and reliability. We hold ISO 9001:2015 and ISO 14001 certifications, with a professional technical team offering free guidance on selection, installation, and maintenance. With production capacity exceeding 1,000,000 units annually and a track record serving markets across Europe, North America, and Southeast Asia, we’ve built a reputation as a trusted partner for industrial bearing solutions.
Packaging & Shipping
- Secure carton packaging with pallet reinforcement for bulk orders, ensuring product integrity during transit
- 3-7 day delivery for standard orders, with expedited options available for urgent requirements
- Flexible shipping via DHL, FedEx, UPS, air, or sea freight to match your timeline and budget
- Real-time logistics tracking provided once shipment is dispatched
- 1 piece MOQ supported for standard bearings, ideal for emergency repairs or small-batch needs
Get Your RNA4922 Bearing Today
Don’t let bearing issues disrupt your production schedule. The RNA4922 Needle Roller Bearing is in stock and ready to ship, with the technical support to ensure optimal performance. Whether you need a single unit for maintenance or bulk orders for manufacturing, we streamline the process from inquiry to delivery.
Frequently Asked Questions
Q: Is the RNA4922 bearing genuine and traceable?
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 RNA4922 fits my equipment?
A: Our technical team can assist with选型 based on your equipment model, load requirements, and operating conditions. Provide details about your application, and we’ll verify compatibility.
Q: What is the warranty period for the RNA4922?
A: We offer a 12-month warranty from the date of delivery, covering manufacturing defects. Defective products can be replaced free of charge or refunded according to our after-sales policy.
Q: What is the minimum order quantity for the RNA4922?
A: The minimum order quantity for standard RNA4922 bearings is 1 piece, allowing flexibility for emergency repairs or small-scale projects.
Q: Can I request custom specifications for the RNA4922?
A: Yes, we support OEM/ODM customization, including adjustments to structure, size, and clearance. Contact us with your drawings or specific requirements for a tailored solution.
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Quality Assurance
100% Inspection
High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.
Delivery
3-15 Days
Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).
Customization
Full OEM/ODM
P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.
After-Sales
12-Month Warranty
Professional technical guidance and failure solutions from our R&D team.
