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NSK adapter sleeves connect a cylindrical shaft with the tapered bore of the bearing specified for an arrangement. The sleeve occupies the space between these surfaces and participates in establishing the fit. It is neither a sliding bushing nor the rolling bearing itself. Within the sleeve family, adapter sleeves are distinct from withdrawal sleeves and locknuts, even when these components appear around a similar bearing position.
See all NSK bushings and sleeves references →NSK guide →Adapter sleeves from all brands →NSK lock nuts →NSK withdrawal sleeves →
H 204X, H 205X and H 206X follow the NSK catalog pattern of initial H, space, numbers and final X. Their number groups identify different references. Copy the ending with the base: removing X from a search discards part of the identification. The designation should not become a formula for shaft diameter. Relating it to a particular bearing also requires that bearing's reference and the seat dimensions stated on the drawing.
In an industrial fan, the sleeve may be inside a bearing housing while the shaft continues toward the drive. Selection considers the bearing position relative to the shoulder, its axial retention and access for adjustment. When reviewing an earlier repair, record existing spacers and accessories as well. A visually similar sleeve may establish a different axial position or require another combination of parts, even if the shaft passes through its bore.
Prepare the inquiry with sleeve code, quantity and complete bearing designation. Add shaft diameter, seat length, photographs of the dismantled arrangement and nut reference where relevant. State whether you need the sleeve alone or several components so MR Accesorios Industriales can define the request. Without a drawing, distinguish verified measurements from approximate ones; an estimate must not silently become a selection dimension.
No, it is a mounting component between shaft and bearing.
Retain it because it belongs to the catalog references.
Identify the bearing and its seating arrangement as well.
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 NSK H series adapter sleeve is a cylindrical component used to secure bearings with a tapered bore onto cylindrical shafts. It is placed between the shaft and the bearing and secured with a lock nut and a lock washer. It is a practical solution for mounting bearings on shafts without machining a taper, widely used in industrial equipment. MR Accesorios Industriales sells this series in Buenos Aires, Argentina.
Just the manufacturer part number is enough: we will quote it and provide dimensions and equivalents via WhatsApp or email.
