Description
Product Specifications
| Parameter | Details |
|---|---|
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separated | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| Specification | As Your Request |
| Origin | Jiangsu China |
| HS Code | 8482800000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Air Compressor |
Need Reliable NUP311/NUP312 Double Row Cylindrical Roller Bearings for Your Air Compressor?
Air compressor downtime due to bearing failure can disrupt production schedules and increase maintenance costs. Selecting the wrong bearing clearance or material often leads to premature wear, especially in high-pressure compressor environments. Sourcing specific models like NUP311 and NUP312 with C3 clearance can be challenging when dealing with limited supplier inventories.
Engineered for Air Compressor Performance
Our Double Row Cylindrical Roller Bearing NUP311/NUP312 with C3 clearance is designed to address these challenges. As a professional bearing supplier with comprehensive product coverage, we offer access to a wide range of models, including hard-to-find specifications like C3 clearance bearings. This bearing is specifically suited for air compressor applications, where its separated design allows for easy installation and maintenance in tight mechanical spaces.
Optimal Performance in Compressor Environments
This Double Row Cylindrical Roller Bearing performs best in air compressors operating under moderate to high axial loads. The C3 clearance variant accommodates thermal expansion during continuous operation, reducing friction and preventing overheating. With a hardness of 60-64 HRC, it withstands the repetitive stresses of compressor cycles, ensuring stable performance in industrial settings.
Key Engineering Features Explained
The separated design of this bearing simplifies mounting and dismounting, a critical advantage during compressor maintenance. The brass or steel cage options provide durability—brass cages offer better heat dissipation for high-temperature compressor environments, while steel cages provide higher load capacity for heavy-duty applications. The Z1V1 to Z3V3 vibration classes allow selection based on noise and precision requirements, ensuring compatibility with different compressor models. Additionally, the C3 clearance specification is particularly important for air compressors, as it allows for thermal expansion without compromising bearing integrity.
Why Proper Bearing Selection Lowers Total Costs
Choosing the right Cylindrical Roller Bearing for Air Compressor applications directly impacts total operational costs. A bearing with incorrect clearance can lead to excessive vibration, increasing wear on adjacent components and requiring frequent replacements. Our NUP311 C3 Clearance Bearing and NUP312 C3 Bearing for Compressor applications are manufactured to precise tolerances, reducing the risk of premature failure. By minimizing downtime and maintenance needs, these bearings help lower long-term costs compared to lower-quality alternatives that may initially cost less but fail quickly.
Quality You Can Rely On
Our bearings undergo strict quality control processes, including material inspection and成品尺寸检测, ensuring compliance with industry standards. We maintain ISO 9001认证生产流程, from raw material selection to final packaging. Each bearing is tested for hardness (60-64 HRC) and vibration levels, providing consistent performance you can trust. We offer a warranty against manufacturing defects, giving you confidence in your purchase. With our extensive network, we can source both standard and custom bearings to meet your specific requirements.
Packaging & Shipping
- Packaged in carton pallets to ensure safe transportation
- Available for现货发货 to meet urgent needs
- Flexible shipping options including express, air, and sea freight
- Low minimum order quantity supported, suitable for both small and large purchases
Request a Quote for NUP311/NUP312 C3 Bearings
Whether you need NUP311, NUP312, or other C3 clearance bearings for air compressors, we can provide the right solution. Contact us with your specific model, quantity, and delivery requirements, and we’ll respond promptly with pricing and availability. Our extensive inventory and global supply chain ensure you get the bearings you need when you need them.
Frequently Asked Questions
Q: Do you support procurement of other bearing brands or models?
A: Yes, we offer comprehensive procurement services covering a wide range of international and domestic brands, and can source bearings according to your specified brand or model requirements.
Q: How can I confirm if this bearing fits my air compressor?
A: Provide your equipment model or the required bearing dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the NUP311/NUP312 C3 bearing specifications.
Q: What is your warranty policy for these bearings?
A: We provide a warranty against manufacturing defects. Specific terms and duration are outlined in the purchase contract, ensuring coverage for any quality issues arising from production.
Q: What is the minimum order quantity for NUP311/NUP312 bearings?
A: We support low minimum order quantities, allowing you to place small trial orders before committing to larger purchases, depending on current inventory levels.
Q: How long does shipping take, and what logistics options are available?
A: In-stock bearings are shipped immediately. We offer express delivery for urgent needs, air freight for faster international shipping, and sea freight for cost-effective bulk orders, with transit times varying by destination.
Q: Can you provide OEM/ODM custom bearings?
A: Yes, we support custom bearing manufacturing according to your technical drawings or specifications, including special dimensions, clearances, and materials.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.







