NTN HK0306FT2 needle roller bearing

NTN HK0306FT2 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 HK0306FT2 and any equivalents.

When radial space is tight, the NTN HK series needle roller bearing offers a compact solution. This single-row bearing uses a steel outer ring and a cage that guides the needles. Because it has no inner ring, it mounts directly on a hardened and ground shaft, which reduces the radial envelope and simplifies assembly. Typical uses include transmissions, power tools, textile machinery and automation equipment.

The HK code tells you the bearing type and size. HK means a needle roller bearing with a stamped outer ring and no inner ring. The numbers that follow give the bore and width in millimeters. For instance, HK0306FT2 has a 3 mm bore and a 6 mm width, while HK0408FT2 has a 4 mm bore and an 8 mm width. The FT2 suffix denotes a specific cage and seal design.

In US industrial settings, you will find HK series bearings in power transmission equipment, pumps, compressors, machine tools, textile machines, industrial printers and appliances. Their low profile suits compact gearboxes where radial space is limited. They also work in conveyor rollers, cams and joints that need oscillating motion with high rigidity.

Selecting the right HK bearing involves checking radial load, speed and environmental conditions. Since there is no inner ring, the shaft itself acts as the raceway and must have the correct hardness and a fine surface finish. The FT2 seal helps keep out dust and moisture, but lubrication still matters: these bearings often arrive pre-greased and may need relubrication depending on the application. Proper alignment between shaft and housing prevents side loads.

NTN HK series bearings interchange with other brands that use the same dimensional standards. If you have a code from another manufacturer, we can identify the equivalent. We can also quote the size you need if you provide the shaft diameter, outside diameter and width. Interchangeability is based on standardized dimensions, not on manufacturer-specific codes.

To request a quote for NTN HK series needle roller bearings, send us the complete code or dimensions via WhatsApp or email. We respond promptly with a quote and the best alternative for your equipment. If you need a specific variant, just send the model and we will take care of it.