NTN 33218U tapered roller bearing

NTN 33218U belongs to tapered 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 33218U and any equivalents.

NTN U series tapered roller bearings handle radial and axial forces in one direction. The tapered geometry creates linear contact between rollers and raceways, which helps distribute combined loads. You will find them in gearboxes, wheel axles, agricultural machinery and other industrial equipment that demands rigidity and load capacity. MR Industrial Accessories supplies this series and helps you match the right size to your application.

The part number tells you the bore. For instance, 30218U has a 90 mm bore, and 30220U has a 100 mm bore. The U suffix is an NTN design variant that can involve changes to the roller profile or surface treatment. When selecting a bearing, start with the shaft diameter and the load conditions. If you need help reading the nomenclature, our team can assist.

These bearings appear in gearboxes, power transmissions, road machinery, mining equipment and agricultural implements. They also show up in milling machine spindles, conveyor rollers and lifting systems. Because they accommodate combined loads, they suit demanding environments where precision and durability matter. We supply workshops, plants and machinery builders across the United States and several Latin American countries.

Proper mounting calls for attention to sealing and lubrication. Tapered roller bearings are often installed in facing pairs to manage axial loads in both directions. Shaft and housing alignment must be precise to avoid extra stress and to support service life. Internal clearance should match the application: a tighter clearance increases rigidity but needs sufficient lubrication. Follow the manufacturer's instructions and use mounting tools that will not damage the raceways.

For equivalences, NTN U series bearings can be interchanged with other brands that use the same dimensional designation, such as SKF, FAG or Timken, provided tolerances and contact angle are respected. Always check the suffix and technical details before substituting a part. If you are unsure, our team can point you to a compatible alternative for your equipment.

To request a quote for an NTN U series tapered roller bearing, send the part number or size via WhatsApp or email. We will reply promptly and suggest a compatible alternative if needed. MR Industrial Accessories is your source for industrial spare parts.