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Selecting a TIMKEN adapter sleeve starts with two surfaces: machine shaft and tapered bearing bore. The sleeve forms their interface within the intended retaining arrangement. It is neither a nut nor a sliding bushing. Distinguish its position and retention from withdrawal sleeves, and do not assume hydraulic features from similar letters or numbers.
See all TIMKEN bushings and sleeves references →TIMKEN guide →Adapter sleeves from all brands →TIMKEN withdrawal sleeves →TIMKEN lock nuts →
The catalog records H305, HA306 and HE305 with shaft dimensions of 20 mm, 15/16 in and 3/4 in respectively. H, HA and HE are distinct groups before the numbers. Similar endings therefore do not establish equal bores or a common measurement system. Preserve code and original dimension units. Rounding a fraction to an approximate metric value can hide a mounting difference; the exact reference must match the associated bearing.
At a fan or conveyor support, the sleeve lies beneath the inner ring within the housing arrangement. Review threaded end, locking parts and distances to shaft shoulders. The drawing should show bearing position after adjustment. If an earlier repair changed the assembly, record added spacers and other parts instead of assuming the original machine arrangement remains intact.
Send MR Accesorios Industriales code, quantity, bearing designation and shaft measurements. Photograph the component sequence and nut reference where relevant. Define whether the sleeve alone or retaining parts are required. Without a drawing, sketch seat length and adjacent components. Explicitly label approximate values so they are not treated as confirmed dimensions when reviewing the request or comparing another series.
Recorded attributes differ; retain the exact reference.
Keep the original value and unit for identification.
State each component and quantity in the inquiry.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
The H series adapter sleeve is the component that allows mounting a bearing with a tapered bore onto a cylindrical shaft. It is placed between the shaft and the bearing, and with the corresponding lock nut and lock washer the necessary radial fit is achieved. MR Accesorios Industriales carries this TIMKEN line in Buenos Aires, Argentina.
The HA series adapter sleeve is a mounting component used to secure bearings with a tapered bore onto cylindrical shafts. It is manufactured with an external thread and a keyway, which allows axial adjustment by means of a lock nut. It is a key part in spherical roller bearing assemblies, since it guarantees a firm hold and easy removal. MR Accesorios Industriales sells the TIMKEN HA series, with standard sizes for different industrial applications.
The HE series adapter sleeve is a mounting component used to secure bearings with a tapered bore onto cylindrical shafts. It is combined with a lock nut and a lock washer to achieve a precise, removable fit. It is a common solution in rotating equipment where loads must be transmitted and maintenance made easier. MR Accesorios Industriales supplies the TIMKEN HE series.
Just the manufacturer part number is enough: we will quote it and provide dimensions and equivalents via WhatsApp or email.
