SKF NKX 30 Z needle roller bearing

SKF NKX 30 Z belongs to needle roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for NKX 30 Z and any equivalents.

The SKF NKX Z is a combined needle roller bearing that pairs a radial needle roller and cage assembly with an axial ball washer in a single, space-saving unit. It handles radial and axial loads at the same time, which makes it a practical choice when the mounting area is tight. Typical installations include gearboxes, pumps and machine tools. MR Industrial Accessories supplies this SKF line and can help you match the right size to your application.

Reading the NKX Z designation is straightforward. NKX marks the series of combined needle roller bearings with an axial component, and the number that follows is the shaft diameter in millimeters. The Z suffix means the bearing includes a lateral shield plate that keeps contaminants out and helps hold lubricant in place. So an NKX 20 Z fits a 20 mm shaft, and an NKX 35 Z fits a 35 mm shaft. The series covers a range of sizes for different shaft diameters.

These bearings are found where radial space is limited and combined loads occur. Machine tools, pumps, compressors, gearboxes, transmission equipment and lifting systems are common examples. Their compact design can replace bulkier assemblies, which simplifies housing design and reduces assembly weight. They are widely used in metalworking, food processing and automotive operations, both on production lines and in maintenance work.

Selecting the right bearing starts with the radial and axial loads it will carry, along with the rotation speed and the environment. The Z shield works well where dust or dirt is moderate; for liquids or humidity, consider other protection options. During mounting, check shaft and housing alignment and confirm that internal clearance is adequate. Use the lubricant specified by the manufacturer and apply the correct amount to avoid overheating. An incorrect fit can shorten bearing service life.

Combined needle roller bearings with axial ball washers are offered by several brands under their own part numbering systems. If you are replacing an existing bearing, compare the main dimensions —shaft diameter, outer diameter and width— and the load capacities. Suffixes for protections or tolerances are not consistent across manufacturers. Before interchanging, have our technical team validate dimensional and functional compatibility.

If you already have your bearing part number, send it to us on WhatsApp and we will prepare your quote. MR Industrial Accessories works with SKF and other brands to help you find the part your equipment needs. Include the complete part number —for example, NKX 25 Z— and we will respond promptly.