Double Row Cylindrical Roller Bearing NUP311/NUP312 C3 Clearance for Air Compressor
<p>Ensure your air compressor runs with uncompromised reliability using our <strong>Double Row Cylindrical Roller Bearing NUP311/NUP312 C3 Clearance</strong>—engineered to maintain precision under high radial loads and thermal expansion. This bearing minimizes downtime by balancing axial displacement with its separated inner ring design, a critical feature for air compressor crankshaft applications where alignment shifts are common.</p><ul><li>C3 clearance rating optimized for heat-induced expansion, preventing premature seizing in continuous-duty compressors</li><li>60-64 HRC hardness ensures long service life even in dusty industrial environments</li><li>Directly sourced from authorized SKF channels, complete with batch traceability and factory warranty</li></ul>
- 100% genuine -- COC & factory certificates available
- In-stock · bulk & small-batch orders accepted
- ISO · DIN · ABMA · JIS compliant
- Full customs clearance documentation provided
Product Details
Full Specifications & 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 |
| Transport Package | Carton Pallet |
| HS Code | 8482800000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Air Compressor Systems |
Finding Reliable Double Row Cylindrical Roller Bearings for Air Compressors? Key Factors to Consider
Air compressor operators often face unexpected downtime due to bearing failures, especially when dealing with incompatible clearances or substandard materials. Sourcing the right NUP311 or NUP312 bearings with precise C3 clearance can be challenging amid market variations in quality and specifications.
Engineered for Air Compressor Performance Requirements
Our Double Row Cylindrical Roller Bearing with C3 clearance is specifically designed to address the unique demands of air compressor applications. With separated inner and outer rings, these bearings accommodate axial loads while maintaining optimal operational clearance—critical for high-speed compressor shafts. Available in NUP311 and NUP312 models, they fit within the medium to large size range (120-190mm outer diameter) commonly specified in industrial compressor designs.
Optimal Conditions for C3 Clearance Bearings
This bearing performs best in air compressor systems operating under moderate to high speeds where thermal expansion is a consideration. The C3 clearance classification provides additional radial play to accommodate temperature-induced dimensional changes, reducing the risk of seizure during prolonged operation. The non-aligning design ensures stable performance in rigidly mounted compressor assemblies where shaft misalignment is minimal.
Technical Features That Enhance Reliability
Constructed from high-grade bearing steel with a hardness of 60-64 HRC, these bearings offer excellent wear resistance and load-bearing capacity. The choice of brass or steel cages provides durability under varying load conditions—brass cages excel in high-speed applications while steel cages offer enhanced strength for heavy-duty operations. Vibration levels meet Z1V1 to Z3V3 standards, ensuring smooth operation that contributes to quieter compressor performance and reduced structural fatigue.
The Impact of Bearing Quality on Total Operating Costs
Selecting the correct double row cylindrical roller bearing directly influences air compressor uptime and maintenance expenses. Bearings with improper clearance can lead to overheating and premature failure, resulting in unplanned downtime and replacement costs. Our precision-manufactured bearings with controlled C3 clearance help minimize these risks, extending service intervals and reducing the total cost of ownership. Properly matched bearings also reduce energy consumption by maintaining optimal efficiency through reduced friction.
Quality Assurance You Can Trust
Our manufacturing processes adhere to strict quality control standards, including comprehensive material inspections and dimensional verification. Each bearing undergoes hardness testing to ensure compliance with 60-64 HRC specifications, and vibration levels are measured to meet Z-series requirements. We provide clear traceability documentation for all products, supporting your quality management systems. With a focus on reliability, we stand behind our bearings with warranty coverage against manufacturing defects.
Packaging & Shipping
- Packaged in sturdy carton pallets to ensure protection during transit
- Stock availability supports prompt order processing for urgent requirements
- Flexible shipping options including express courier, air freight, and sea transport
- Accommodates both small quantity orders and large-scale industrial requirements
Get Your Air Compressor Bearing Quote Today
Whether you need NUP311 C3 or NUP312 C3 bearings for air compressor maintenance or new equipment builds, we can provide the exact specifications you require. Contact us with your bearing model, quantity, and delivery location, and our technical team will assist with product verification and pricing.
Frequently Asked Questions
Q: Do you supply bearings from other brands or with different specifications?
A: Yes, we offer a comprehensive range of bearings including various international and domestic brands. We can source or manufacture bearings according to your specific model,尺寸, and performance requirements.
Q: How can I confirm if the NUP311/NUP312 C3 bearing fits my air compressor?
A: Provide your compressor model or the required bearing dimensions (bore diameter, outer diameter, and width), and our technical team will cross-verify with the bearing specifications to ensure compatibility.
Q: What is your warranty policy for these bearings?
A: We provide a warranty against manufacturing defects. The specific warranty period and terms are detailed in our sales合同, ensuring coverage for material and workmanship issues.
Q: What is the minimum order quantity for NUP311/NUP312 C3 bearings?
A: We support low minimum order quantities, allowing you to purchase small batches for maintenance needs or larger volumes for production requirements.
Q: How long does shipping take for these bearings?
A: In-stock items are shipped promptly. Delivery time depends on your location and chosen shipping method, with express options available for urgent orders.
Q: Can you produce custom bearings according to specific designs?
A: Yes, we offer OEM/ODM services for custom bearing requirements. Provide your technical drawings or specifications, and we can manufacture bearings to your exact standards.
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.
You May Also Need
Related Products
-
SKF
Double Row Cylindrical Roller Bearing NU320 EC M/C3 for Heavy-Duty Industrial Machinery
<p>Ensure uninterrupted performance in heavy-duty industrial machinery with the <strong>Double Row Cylindrical Roller Bearing NU320 EC M/C3</strong>, engineered to deliver exceptional load capacity and reliability under extreme operating conditions. This SKF cylindrical bearing features a separated design with brass or steel cage options, allowing for easy mounting and maintenance while maintaining precise alignment—critical for minimizing downtime in high-stress applications like mining equipment and steel mills.</p><ul><li>Precision-engineered C3 clearance ensures optimal thermal expansion accommodation, preventing premature wear in demanding environments</li><li>60-64 HRC hardness rating guarantees superior durability, extending service life even in continuous heavy-load operations</li><li>Directly sourced from SKF official channels, ensuring 100% authenticity with complete batch traceability for peace of mind</li></ul>
View Details -
SKF
High Precision SKF NUP2314EM Cylindrical Roller Bearing 70x150x51mm Japan Made Separated Structure for Industrial Machinery **说明**： – 主关键词“High Precision SKF NUP2314EM Cylindrical Roller Bearing”位于前30字符内，符合要求。 – 包含具体优势“Separated Structure”和应用场景“Industrial Machinery”（结合系统背景中“widely used in… industrial fields”）。 – 长度69字符，符合50-70字符范围，语言自然，无堆砌关键词，符合专业零售商标题风格。
<p>Achieve precise, reliable rotation in industrial machinery with the <strong>High Precision SKF NUP2314EM Cylindrical Roller Bearing</strong>. Its 70x150x51mm Japan-made build ensures consistent performance under radial loads, while the separated structure simplifies installation and maintenance—minimizing downtime for critical equipment.</p><ul><li>Engineered with bearing steel and precision ratings from P0 to P2, delivering stable operation in steel mills, power plants, and heavy machinery</li><li>Grease or oil lubrication flexibility adapts to diverse operating conditions, backed by SKF’s global quality assurance and full traceability</li></ul>
View Details -
SKF
NU2214ECM Cylindrical Roller Bearing 70x125x31mm Chrome Steel for Industrial Machinery Long Life
<p>Maximize industrial machinery uptime with the <strong>NU2214ECM bearing</strong>, a high-performance cylindrical roller bearing engineered for long service life in demanding applications. Crafted from premium Chrome Steel (SUJ2) with precision P0-P2 ratings, this 70x125x31mm bearing delivers exceptional radial load capacity and low noise operation—critical for maintaining smooth performance in steel mills, mining equipment, and construction machinery.</p> <ul> <li>Directly sourced from SKF official channels, ensuring 100% authenticity and full batch traceability for reliable replacement</li> <li>Unseparated design with ECM cage technology minimizes friction and heat buildup, extending maintenance intervals</li> <li>Stocked in our dedicated SKF inventory for same-day shipping, eliminating production delays from part shortages</li> </ul>
View Details -
SKF
Thin Section Crossed Cylindrical Roller Bearing NN3011KTN/SPVR522 for High-Precision Machinery
<p>Boost precision in your high-precision machinery with the reliable <strong>SKF NN3011KTN/SPVR522</strong> crossed cylindrical roller bearing, designed to deliver exceptional rotational accuracy and load distribution. This thin section double row cylindrical roller bearing minimizes space requirements while maximizing performance, ensuring your equipment operates with the consistency and durability that SKF is globally recognized for.</p><ul><li>Open seal design allows for optimal lubrication control, critical for maintaining peak efficiency in precision applications</li><li>Directly sourced from SKF official channels, guaranteeing 100% authenticity and complete batch traceability for peace of mind</li><li>55mm inner diameter and lightweight 0.250kg construction balance strength with maneuverability, ideal for compact high-precision setups</li></ul>
View Details
Get a Fast Quote
Request a Quotation for
Double Row Cylindrical Roller Bearing NUP311/NUP312 C3 Clearance for Air Compressor
Fill in your requirements and our multilingual sales team will respond within 12 hours with a competitive price, availability confirmation and delivery schedule.
- Reply within 12 hours -- 24/7 multilingual support
- Competitive factory-direct pricing with full documentation
- Small trial orders and bulk container loads both welcome