Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 for High Load Industrial Machinery

Product Specifications

Application Industries

Prevent Costly Downtime with NNU4952 B-K/Sp W33 Double Row Cylindrical Roller Bearing

Industrial machinery operators know the frustration of unexpected bearing failures—especially in high-load applications where downtime can cost thousands per hour. Sourcing reliable replacements often means juggling multiple suppliers, facing long lead times, or risking counterfeit products that fail prematurely. For maintenance teams and OEMs managing heavy-duty equipment, finding a trustworthy source for critical components like double row cylindrical roller bearings remains a persistent challenge.

High Load Performance You Can Rely On, When You Need It

Our NNU4952 B-K/Sp W33 Double Row Cylindrical Roller Bearing is engineered to handle the demands of industrial machinery under heavy axial and radial loads. As an official authorized distributor of SKF & NTN, we maintain sufficient hot-selling stock to ensure quick delivery, eliminating the delays that plague procurement from single-brand suppliers. Whether your application involves gearboxes, large motors, or machine tool spindles, this bearing delivers the stability and durability required for continuous operation.

Engineered for Extreme Industrial Conditions

This double row cylindrical roller bearing excels in high-load environments where precision and reliability are non-negotiable. Its separated design allows for easy mounting and dismounting, a critical feature during maintenance shutdowns. With a hardness rating of 60-64 HRC, the bearing withstands heavy shock loads and maintains dimensional stability even under fluctuating temperatures. The W33 designation indicates a lubrication groove and three oil holes in the outer ring, ensuring efficient lubricant distribution for extended service life in continuous operation scenarios.

Key Technical Features That Maximize Performance

The bearing’s clearance options (C0, C2, C3, C4, C5) allow customization to specific operating conditions—tighter clearances for precision applications or larger clearances for thermal expansion in high-temperature environments. Available with brass or steel cages, the design optimizes load distribution and minimizes friction: brass cages offer superior strength for heavy loads, while steel cages provide cost-effective performance in standard industrial settings. Vibration grades Z1V1 to Z3V3 ensure smooth operation, reducing noise and energy consumption in high-speed machinery. These technical attributes work together to deliver consistent performance in the most demanding industrial applications.

Why Genuine Bearings Matter for Your Bottom Line

Counterfeit bearings may offer lower upfront costs, but they often lack the material quality and manufacturing precision of genuine components. A single premature failure can lead to unplanned downtime, expensive repairs, and potential damage to adjacent machinery. Our bearings adhere to ISO 9001 quality control standards, ensuring each unit meets strict performance criteria. By choosing authorized distribution, you avoid the hidden costs of counterfeits—such as frequent replacements, production losses, and safety risks—and instead invest in a total cost of ownership that protects your equipment and your business.

Your Trusted Partner for Industrial Bearing Solutions

Packaging & Shipping

• Secure carton pallet packaging with protective internal cushioning
• 现货 available for 3-7 business day delivery
• Flexible shipping options: DHL, FedEx, UPS, air freight, or sea freight
• Real-time logistics tracking provided for all shipments
• Minimum order quantity: 1 unit, supporting emergency maintenance needs

Get Your NNU4952 Bearing Shipped Today

Don’t let equipment downtime erode your productivity. Whether you’re replacing a failed bearing or stocking spares for planned maintenance, our NNU4952 B-K/Sp W33 Double Row Cylindrical Roller Bearing is ready to ship. The sooner you place your order, the sooner you can restore your machinery to full operation and avoid further production losses.

Frequently Asked Questions