NSK HR 30308 C tapered roller bearing

NSK HR 30308 C 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 HR 30308 C and any equivalents.

Tapered roller bearings in the NSK HR line are built to carry radial and axial loads at the same time, in a single direction. The tapered raceway and guided rollers create linear contact that spreads the load across the raceway. Gearboxes, wheel hubs and machine tool spindles are common homes for these bearings. MR Industrial Accessories supplies this line to customers throughout the United States and Latin America, and can help you match the right designation to your equipment.

Reading an HR series code happens in blocks. The letters HR mark the NSK tapered roller family. The digits that follow identify the series type, and when a slash shows up, the number after it gives the bore in millimeters. Take HR 302/22 C: 302 is the single row tapered roller series, 22 is the bore in millimeters, and the trailing C points to an internal design variant. With HR 30205 C, the five digit number 30205 is itself a series code that already carries the bore size per the standard. Suffixes can cover tolerances, contact angles or special treatments, so the series table is the reliable place to confirm them.

These bearings show up in metalworking, food processing, mining and agricultural operations. You will find them in gearboxes, machine tool spindles, conveyor rollers, wheel hubs and earthmoving equipment. Because they take combined loads, they suit assemblies where the shaft sees radial and axial forces at the same time. Maintenance teams and production plants pick them for rigidity and durability in tough working conditions.

Selection comes down to the radial and axial load, the rotation speed and the space you have. During assembly, the internal clearance has to be set: too much clearance brings vibration and wear, too little pushes the temperature up. Grease or oil, whichever the application calls for, plus sealing against contaminants, helps the bearing reach its full service life. Shaft alignment and raceway support matter just as much. When bearings run in pairs, follow the arrangement and adjustment method specified by the manufacturer.

Dimensional standards make tapered roller bearings interchangeable between brands. Bring us a part number from another maker and we can identify the NSK HR equivalent. The HR series keeps the main dimensions per standard, which simplifies replacement. To confirm interchangeability, verify the bore diameter, outer diameter, width and raceway angle. With those figures, we give you the matching NSK reference.