Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | 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 |
| Transport Package | Carton Pallet |
| HS Code | 8482800000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Air Compressor |
Looking for Reliable Double Row Cylindrical Roller Bearings NUP311/NUP312 with C3 Clearance for Air Compressors?
Air compressor operators know the frustration of bearing failures—unplanned downtime, costly repairs, and the struggle to find exact replacements. When dealing with critical components like Double Row Cylindrical Roller Bearings, getting the right clearance (C3) and dimensions is non-negotiable. Many suppliers offer limited models, forcing you to compromise on specifications or wait weeks for delivery.
Built for Air Compressor Reliability
Our Double Row Cylindrical Roller Bearing NUP311/NUP312 with C3 Clearance addresses these challenges directly. As a supplier with extensive experience in industrial bearings, we maintain a comprehensive inventory covering major international standards, ensuring you get the exact C3 Clearance Bearing your air compressor requires. The separated design allows for easy installation and maintenance, a critical feature in compressed air systems where downtime must be minimized.
Optimized Performance in Air Compressor Environments
This Air Compressor Bearing thrives in the high-load, moderate-speed conditions typical of air compressors. The C3 clearance provides extra space to accommodate thermal expansion during operation, preventing premature wear and overheating. With a hardness rating of 60-64 HRC, the bearing steel construction delivers exceptional durability, even under the continuous stress of compressed air generation.
Key Engineering Features for Longevity
The NUP311 and NUP312 Cylindrical Roller Bearings incorporate design elements that directly impact performance. The brass or steel cage options ensure stable roller guidance, reducing friction and extending service life. Vibration class options (Z1V1 to Z3V3) allow customization based on your compressor’s precision requirements, with higher grades minimizing operational noise and vibration. The separated inner and outer rings facilitate quick replacement, a crucial advantage during maintenance cycles.
Why Proper Bearing Selection Lowers Total Cost
Choosing the right C3 Clearance Double Row Bearing isn’t just about avoiding immediate failures—it’s about reducing long-term costs. A bearing with incorrect clearance can cause excessive heat buildup, leading to seal degradation and oil breakdown in your air compressor. Our precision-engineered bearings, manufactured to strict quality standards, help prevent these issues, lowering maintenance frequency and extending intervals between overhauls. This focus on reliability translates to lower total cost of ownership compared to cheaper, less precise alternatives.
Quality You Can Rely On
Every bearing undergoes thorough inspection, including dimensional checks and hardness testing, to ensure compliance with industry specifications. We source materials from verified suppliers and maintain a rigorous quality control process throughout production. All bearings come with a standard warranty covering manufacturing defects, providing peace of mind for your critical applications. Our global supply chain ensures consistent availability, so you can secure the NUP311 C3 Air Compressor Bearing or NUP312 C3 Cylindrical Roller Bearing when you need it.
Packaging & Shipping
- Packaged in carton pallets for secure transportation
- Available for immediate shipment from stock
- Flexible shipping options including express, air, and sea freight
- Low minimum order quantity to support both small and large-scale requirements
Request a Quote for NUP311/NUP312 C3 Bearings
Need the Double Row Cylindrical Roller Bearing NUP311/NUP312 with C3 Clearance for your air compressor? Provide us with the specific model, quantity, and delivery location, and we’ll promptly send you a competitive quote. We handle all major bearing brands and models, so even if you need additional components, we can consolidate your order for efficient shipping.
Frequently Asked Questions
Q: Do you support procurement of other bearing brands or models?
A: Yes, we offer comprehensive procurement services covering all major international and domestic bearing brands. Simply provide the required brand, model, or dimensions, and we can source it for you.
Q: How can I confirm if this bearing is compatible with my air compressor?
A: Share your air compressor model or the bearing’s dimensional requirements (bore diameter, outer diameter, width), and our technical team will verify compatibility with the NUP311/NUP312 C3 bearings.
Q: What is your warranty policy for these bearings?
A: We provide a warranty against manufacturing defects. The specific duration and terms will be detailed in your order confirmation, with coverage for replacement or refund in case of verified defects.
Q: What is the minimum order quantity for NUP311/NUP312 C3 bearings?
A: We offer low minimum order quantities to accommodate both small maintenance needs and large-scale production requirements. Contact us for specific quantity pricing.
Q: How quickly can you ship the bearings after order placement?
A: Stock items like the NUP311 and NUP312 C3 bearings are shipped within 1-2 business days. Shipping time depends on your location and chosen delivery method.
Q: Do you offer OEM/ODM customization for bearings?
A: Yes, we support custom bearing manufacturing based on your detailed specifications, drawings, or samples. Contact our technical team to discuss your customization requirements.
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.







