Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 for Heavy-Duty Machinery with Brass Cage

Product Specifications

Application Suitability

Need Reliable NNU4952 B-K/Sp W33 Double Row Cylindrical Roller Bearing for Heavy Machinery?

Finding the right bearing for heavy-duty applications often means balancing precision, durability, and availability. Many buyers struggle with mismatched dimensions causing installation delays, or bearings failing prematurely due to substandard materials—costing valuable production time and maintenance resources.

Engineered for Heavy-Duty Performance

This Double Row Cylindrical Roller Bearing is designed to address these challenges, with interchangeable dimensions following international standards to ensure compatibility with existing equipment. Our ISO 9001 certified production processes include rigorous material testing and finished product inspections, ensuring each bearing meets the required hardness and precision levels. With a separated design, it simplifies installation and maintenance in critical machinery like steel mill rolling stands and mining crushers.

Optimal Performance in Demanding Conditions

This bearing excels in applications with high radial loads and moderate axial loads, operating efficiently within typical industrial temperature ranges. The brass cage option provides enhanced heat dissipation and stability at higher speeds compared to steel alternatives, making it suitable for continuous operation in heavy machinery where reliability is non-negotiable.

Key Engineering Features Explained

The bearing's 60-64 HRC surface hardness ensures resistance to wear and indentation under heavy loads, extending service life in abrasive environments. Available internal clearances (C0 to C5) allow customization based on thermal expansion requirements—critical for applications with temperature fluctuations. The non-aligning design requires precise shaft alignment but delivers superior load-carrying capacity, while the separated inner and outer rings facilitate easier mounting and dismounting during maintenance.

Total Cost of Ownership Matters

Choosing a quality heavy-duty machinery bearing directly impacts operational costs. Inferior bearings with inconsistent hardness or poor clearance control often lead to premature failure, causing unplanned downtime and replacement expenses. This bearing's adherence to strict manufacturing standards reduces the risk of unexpected failures, lowering long-term maintenance costs compared to cheaper alternatives.

Quality You Can Trust

Packaging & Shipping

• Packaged in cartons with pallet options for bulk orders
• Stock availability supports prompt shipping for urgent requirements
• Flexible logistics options including express courier, air, and sea freight
• Low minimum order quantity available, suitable for both trial and regular purchases

Get Your Bearing Quote Today

Whether you need the NNU4952 B-K/Sp W33 or another heavy-duty machinery bearing, provide us with your required model, dimensions, and quantity. Our team will confirm availability and deliver a competitive quote, ensuring you get the right bearing when you need it.

Frequently Asked Questions