NSK UK309D1;HA2309 insert bearing

NSK UK309D1;HA2309 belongs to insert 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 UK309D1;HA2309 and any equivalents.

For drive shafts that need a secure, adjustable bearing mounting, the NSK UK series insert bearing offers a tapered bore and an extended inner ring. It mounts on an HA adapter sleeve, which lets you position it on plain shafts without shoulders and fine-tune the fit with a lock nut and lock washer. This assembly is common in split plummer block housings and bearing units.

The UK series code tells you the insert type and size. The letters UK indicate a tapered insert; the first digit after UK is the diameter series (UK2 for series 2, UK3 for series 3), and the last two digits give the shaft diameter in millimeters. A D1 suffix marks a design variant. The HA sleeve uses four digits: the first two for the sleeve series and the last two for the shaft diameter. So UK209D1 pairs with HA2309, and UK310D1 with HA2310. Reading the code this way speeds up identification of the correct insert-and-sleeve set.

You will find these bearings in conveyors, belt conveyors, agricultural machinery, packaging equipment, mixers, and drive systems across industrial plants. They suit food, cement, and mining operations as well as maintenance workshops. When used in bearing units, they simplify mounting on long shafts and help compensate for small misalignments inside split plummer block housings or take-up units.

To select the right assembly, confirm the shaft diameter, the diameter series (UK2 or UK3), and the matching HA sleeve. During mounting, clean the shaft and sleeve, inspect the taper, and tighten the nut with the lock washer. Lubrication and housing sealing have a direct effect on service life, and correct alignment avoids undue axial loads. If the shaft shows wear, a new sleeve can restore the fit.

Equivalent insert bearings from other brands are often interchangeable when the main dimensions and taper type match, but always verify tolerances and seal design. HA sleeves follow dimensional standards, which simplifies replacement. If you have a part number from another manufacturer, we can help you find the corresponding NSK item.

To request a quote, send the full part number or the shaft dimensions via WhatsApp or email. Our team responds promptly, suggests equivalents, and helps you choose the right combination for your application.