SKF HE 309 adapter sleeve

SKF HE 309 belongs to adapter sleeve, part of our Bushings and sleeves range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for HE 309 and any equivalents.

The SKF HE series adapter sleeve allows a bearing with a tapered bore to be fitted onto a cylindrical shaft. The assembly includes an externally threaded sleeve plus a lock nut and lock washer; tightening the nut produces the interference that holds the bearing in place. Typical uses include gearboxes, pumps, fans and conveyors, where a secure connection that can still be removed is needed.

Reading the HE code is straightforward. The letters HE are followed by four digits. The first pair tells you which bearing series the sleeve fits: HE 23 goes with series 23 bearings, HE 31 with series 31. The second pair reflects shaft size, so a higher number means a larger shaft. For instance, HE 2306 suits a series 23 bearing on a smaller shaft, while HE 2328 is for a larger shaft. Suffixes can point to differences in thread pitch or nut style, so it pays to confirm the full part number.

These sleeves appear in many industries, including food processing, chemical, petrochemical, cement, steel and aggregate operations. They are common on conveyor belts, mills, mixers, centrifugal pumps, industrial fans and machine tools. Their role is to let a tapered-bore bearing be mounted on a cylindrical shaft, which simplifies adjustment and removal without harming the shaft or the bearing. They also suit applications that call for accurate axial fixing and good concentricity.

When choosing a sleeve, consider the shaft diameter, the bearing series and the thread type. The sleeve must match the bearing exactly, because interference and internal clearance depend on it. Before mounting, clean the shaft and the bearing bore, apply a thin film of lubricant, and tighten the nut with a suitable wrench until the recommended radial clearance is reached. The lock washer keeps the nut from backing off. Check alignment and tightening against the manufacturer's specifications.

For equivalents, SKF HE series sleeves can be interchanged with other brands that use the same standardized designation, such as FAG, NSK or NTN, provided the part number and dimensions agree. Since nomenclature is not identical across every maker, compare dimensions and thread before substituting. If anything is unclear, send us the original part number and we will help you sort it out.

To request a quote for the SKF HE series adapter sleeve you need, send the complete part number by WhatsApp or email to MR Industrial Accessories. We help you identify the right part for your application and reply promptly.