Super Precision Double Row Cylindrical Roller Bearing SKF NN3018 TN3/SPW33 for Machine Tools

Product Specifications

Application Industries

Reduce Machine Downtime with Genuine SKF NN3018 TN3/SPW33 Super Precision Bearings

Machine tool operators know the frustration of unexpected downtime caused by bearing failures. When precision components like spindles fail, production stops, deadlines slip, and repair costs mount. Sourcing reliable replacements often means navigating multiple suppliers, inconsistent quality, and long lead times—especially for specialized super precision bearings.

Genuine SKF Super Precision Bearings, In Stock for Immediate Delivery

As an official SKF distributor, we stock the SKF NN3018 TN3/SPW33 Super Precision Double Row Cylindrical Roller Bearing to solve these challenges. This bearing is engineered for high-precision machine tool applications, where radial rigidity and rotational accuracy directly impact machining quality. Our ISO 9001 quality control system ensures every unit meets SKF's strict standards, and with 1,100+ clients across 50+ countries, we understand the critical need for on-time delivery.

Engineered for High-Precision Machine Tool Performance

The NN3018 TN3/SPW33 excels in applications requiring high radial load capacity and precise axial guidance, such as machine tool spindles operating at moderate to high speeds. Its double row cylindrical design distributes loads evenly, reducing stress on individual rollers and extending service life. The open seal configuration minimizes friction in clean, lubricated environments, making it ideal for precision grinding, milling, and turning operations where temperature control and vibration damping are essential.

Key Technical Features That Drive Reliability

The SPW33 precision class designation ensures tight dimensional tolerances, critical for maintaining spindle runout within microns. This level of precision directly reduces vibration, improving surface finish quality on machined parts. The TN3 cage design—typically a polyamide material—enhances lubricant retention and reduces noise at higher speeds compared to metal cages. With a single gross weight of 0.250kg, the bearing balances durability with lightweight construction, minimizing inertial forces during rapid spindle acceleration and deceleration.

Why Genuine SKF Bearings Lower Total Cost of Ownership

Counterfeit bearings may offer lower upfront prices, but they often fail prematurely due to substandard materials and manufacturing. A single spindle failure from a fake bearing can cost thousands in repairs, lost production, and rework. Genuine SKF bearings, like the NN3018 TN3/SPW33, are backed by decades of engineering expertise and undergo rigorous testing to ensure consistent performance. By investing in authentic components, machine shops reduce unplanned downtime and extend maintenance intervals, lowering long-term operational costs.

Your Trusted Partner for Multi-Brand Bearing Solutions

Packaging & Shipping

• Original SKF packaging with product certification and traceability documentation
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 0.300kg
• Shipping options: DHL, FedEx, UPS, air freight, and sea freight
• Real-time logistics tracking provided for all shipments
• Minimum order quantity: 1 piece, supporting emergency repairs and small-batch purchases

Get Your SKF NN3018 TN3/SPW33 Bearing Today

Don’t let bearing issues disrupt your production schedule. Whether you need a single replacement or bulk order, our team can confirm stock availability and provide a quotation within one working day. Send us your requirements, and we’ll handle the rest—from technical verification to consolidated shipping.

Frequently Asked Questions