Double Row Cylindrical Roller Bearing for Air Compressor NUP311 NUP312 C3 Clearance

Product Specifications

Application Industries

Minimize Downtime with Reliable NUP311 and NUP312 Double Row Cylindrical Roller Bearings for Air Compressors

Air compressor operators often face unexpected shutdowns due to bearing failures, leading to production losses and costly repairs. Sourcing genuine replacement bearings with the correct clearance can be challenging, especially when dealing with multiple suppliers who offer inconsistent quality and extended lead times. This is particularly critical for air compressors, where precision and durability directly impact operational efficiency.

Genuine Double Row Cylindrical Roller Bearings, In Stock for Immediate Delivery

Our Double Row Cylindrical Roller Bearings for Air Compressors, including models NUP311 and NUP312 with C3 clearance, are designed to address these challenges. As an officially authorized distributor, we guarantee 100% authentic products that meet strict ISO 9001 and DIN standards. With sufficient ready stock of P4/P2 precision grade bearings, we ensure rapid delivery to minimize your equipment downtime. These bearings are specifically engineered for the demanding conditions of air compressors, providing reliable performance under heavy loads and high speeds.

Optimal Performance in Air Compressor Applications

Double Row Cylindrical Roller Bearings are ideal for air compressors due to their ability to handle both radial and axial loads. The separated design allows for easy installation and maintenance, while the C3 clearance ensures proper operation even at elevated temperatures, a common scenario in compressor systems. Whether in reciprocating or rotary air compressors, these bearings provide the stability and longevity required to keep your equipment running smoothly.

Key Technical Features That Ensure Longevity

The performance of our NUP311 and NUP312 C3 Clearance Bearings is defined by several critical technical attributes. The bearing steel material, with a hardness of 60-64 HRC, provides exceptional wear resistance and load-carrying capacity. The cage options, brass or steel, offer durability and stability during high-speed rotation. Vibration levels rated at Z1V1, Z2V2, or Z3V3 ensure smooth operation, reducing noise and extending bearing life. The C3 clearance is particularly important for air compressors, as it accommodates thermal expansion and ensures proper lubrication distribution under operating conditions.

Why Authentic Bearings Matter for Your Bottom Line

Choosing genuine Double Row Cylindrical Roller Bearings over counterfeit alternatives directly impacts your total cost of ownership. Counterfeit bearings often fail prematurely, leading to unplanned downtime, increased maintenance costs, and potential damage to other compressor components. Our bearings, backed by official brand authorization and full-process quality traceability, eliminate these risks. By investing in authentic bearings, you ensure consistent performance, reduce repair expenses, and protect your production schedule from costly interruptions.

Our Commitment to Reliability and Service

Packaging & Shipping

• Carton pallet packaging for secure transportation
• Ready stock available for prompt delivery
• Flexible shipping options including DHL, FedEx, UPS, air, and sea freight
• Real-time logistics tracking provided for all shipments
• Minimum order quantity of 1 piece, supporting both emergency repairs and small-scale procurement

Get Your Air Compressor Bearings Today

Don’t let bearing issues disrupt your air compressor operation. Contact us now with your specific bearing requirements, including model (NUP311 or NUP312), quantity, and application details. Our team will provide a unified quotation within one working day, along with full authorization certificates and quality inspection documents. The sooner you place your order, the sooner you can restore your equipment to full functionality.

Frequently Asked Questions