NNU4956B/SPW33 SKF Cylindrical Roller Bearing 280mm ID for Construction Machinery Precision Applications

Product Specifications

Application Industries

Minimize Downtime with Genuine NNU4956B/SPW33 SKF Cylindrical Roller Bearing

Construction machinery operators know the cost of unexpected downtime—every hour of halted work eats into project deadlines and profits. Sourcing reliable replacement bearings often means navigating inconsistent quality from uncertified suppliers or facing long lead times for genuine parts. When your equipment relies on precision components like the NNU4956B/SPW33 SKF bearing, choosing the wrong supplier can lead to premature failures and costly repairs.

Genuine SKF Bearings in Stock for Immediate Delivery

As an official SKF distributor, we eliminate these frustrations by maintaining sufficient stock of high-precision bearings like the NNU4956B/SPW33. This double row cylindrical roller bearing, with its 280mm inner diameter, is engineered for the heavy radial loads and high rigidity required in construction machinery applications. Our ISO 9001 and DIN compliant inspection system ensures every bearing meets SKF’s strict quality standards before it leaves our warehouse, so you can install with confidence.

Engineered for Demanding Construction Environments

The NNU4956B/SPW33 SKF bearing thrives in the harsh conditions of construction sites, where heavy loads, shock impacts, and variable speeds are the norm. Its double row design provides exceptional radial load capacity, while the cylindrical structure allows for thermal expansion, a critical feature in equipment operating under fluctuating temperatures. Whether used in excavator swing mechanisms or loader gearboxes, this bearing delivers the consistent performance needed to keep your machinery running.

Key Technical Features That Matter

The open seal design of the NNU4956B/SPW33 makes it ideal for applications where frequent lubrication is required, ensuring optimal performance in dusty or debris-prone environments. Its 280mm inner diameter accommodates large shafts common in heavy construction equipment, while the double row configuration distributes load evenly across the bearing, extending service life. As a SKF product, it benefits from the brand’s decades of engineering expertise in materials and manufacturing, resulting in a component that balances durability with precision movement.

Why Authenticity Translates to Lower Total Cost

Opting for counterfeit bearings may seem like a cost-saving measure, but the hidden expenses quickly add up. Unauthorized replicas often fail prematurely due to substandard materials and poor manufacturing tolerances, leading to unplanned downtime, expensive repairs, and potential damage to surrounding components. Genuine SKF bearings like the NNU4956B/SPW33, backed by full certification documents, offer predictable performance and longer service intervals, reducing your total cost of ownership over time.

Your Trusted Partner for Precision Bearings

Packaging & Shipping

• Original SKF packaging with product authenticity labels
• Protective outer packaging to prevent damage during transit
• Global shipping via DHL, FedEx, UPS, air, or sea freight
• Real-time logistics tracking provided for all orders
• Minimum order quantity of 1 piece, supporting emergency maintenance needs

Get Your NNU4956B/SPW33 Bearing Shipped Today

Don’t let equipment downtime derail your project schedule. Send us your NNU4956B/SPW33 SKF bearing requirements, including quantity and application details, and our team will provide a unified quotation within one working day. With our sufficient stock, you can have this critical component delivered quickly to minimize operational disruptions.

Frequently Asked Questions