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The SKF adapter sleeve lets you mount a tapered bore bearing on a plain shaft, with no shoulder or key. It is a slotted tapered sleeve supplied with its lock nut and locking washer. In the catalog, the H, HA and HE series cover different shafts for the same bearing sizes, which is why the number alone is not enough to order one.
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In H 205, the digits refer to the size of the bearing it receives: sleeve 205 matches tapered bore bearings of that size, not a direct shaft dimension. The H series is the one for metric shafts. HA 209 and HE 213 belong to series intended for inch shafts: the bearing they mount may be the same as in the H series, but the sleeve bore is different.
In H 311 E, the final E distinguishes an execution of the same size, and other letters play that role too. Copy the complete designation of the removed sleeve. If what you have is the bearing designation, check that it ends in K: that letter indicates the tapered bore the sleeve needs.
The sleeve grips the shaft by wedge action: as the nut is tightened, the bearing is driven up the taper and the assembly is locked. The shaft must be to size and clean; a worn or burred shaft prevents the sleeve from seating along its whole length. The fit is controlled by the reduction of the bearing clearance or by the tightening angle stated by the manufacturer, not by the force on the spanner.
An adapter sleeve is not a withdrawal sleeve. The withdrawal sleeve enters from the other side and needs an abutment on the shaft; it has its own line in the catalog. Lock nuts and locking washers are also ordered separately when only that part is damaged.
State the complete designation, the quantity and the actual shaft diameter measured with a caliper or micrometer. If you do not have the sleeve designation, send us the designation of the bearing mounted on it and the shaft diameter, in millimetres or inches: those two details identify the series. Saying whether you need the complete set or only the nut and washer shortens the enquiry. If the housing is a split plummer block, its designation helps confirm the assembly.
Do not derive it from the number: 205 is the bearing size. Confirm the shaft by measuring or with the manufacturer's catalog.
They mount the same bearing sizes on different shafts. They are not interchangeable without checking the shaft.
The adapter sleeve is supplied with both. They can also be ordered separately by their own designation.
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.
An adapter sleeve is a tapered element that allows a bearing with a tapered bore — such as 22 series spherical roller bearings or self-aligning ball bearings — to be mounted on a plain shaft, without the shaft needing a machined shoulder or a keyway.
The SKF adapter sleeve series HA is a mounting component that allows bearings with a tapered bore to be fixed onto cylindrical shafts. It consists of a split sleeve, a lock nut and a lock washer, and is used to position and secure the bearing in applications where a precise fit and easy disassembly are required. It is a common solution in power transmission equipment, gearboxes and industrial machinery.
The SKF HE series adapter sleeve is a key component for mounting bearings with a tapered bore on cylindrical shafts. It consists of a sleeve with an external thread and a lock nut with a lock washer that, when tightened, generates the necessary interference to secure the bearing. It is used in rotating equipment where a firm, removable connection is required, such as gearboxes, pumps, fans and conveyors.
Just the manufacturer part number is enough: we will quote it and provide dimensions and equivalents via WhatsApp or email.
