H-3024-E adapter sleeve: complete specifications & mounting data
The H-3024-E is an adapter sleeve sized 120 x 155 x 72 mm (tapered bore x sleeve OD x width) for a plain 110 mm metric shaft with M 120x2 thread supplied with the KMFE 24 lock nut at 1,850 g per ISO 2982-1. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 120 mm |
| Outer diameter D | 155 mm |
| Width B | 72 mm |
| Fits shaft diameter | 110 mm |
| Sleeve thread G | M 120x2 |
| Included lock nut | KMFE 24 |
| Associated hydraulic nut | HMV 24 E |
| Material | Carbon_Steel |
| Mass | 1850 g |
| Manufacturer designation | H 3024 E |
| Standard | ISO 2982-1 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 23.1 adapter sleeves for metric shafts |
| Last verified | 2026-09-30 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 23.1 adapter sleeves for metric shafts) · extracted 2026-09-30
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 23.1 adapter sleeves for metric shafts); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & H30-series range
| Bore d | 4.724 in |
|---|---|
| Outer diameter D | 6.102 in |
| Width B | 2.835 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 17.5 mm |
| Smallest bore in H30-series | 120 mm |
| Largest outer diameter in H30-series | 230 mm |
| Width range across H30-series | 72–109 mm |
| Bore position in H30-series (smallest first) | 1 of 7 |
| Bore above smallest H30-series size | 0 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| H | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; standard interchange — confirm clearance class and precision with the supplier. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the H-3024-E model number is decoded
mass 1,850 g is 15.4 g per mm of bore; the sleeve with its KMFE 24 nut forms the complete 72 mm-wide mounting assembly the OD-to-bore ratio is 1.29: the 155 mm sleeve OD is only 17.5 mm of section beyond the 120 mm seat, leaving room for the bearing outer ring without enlarging the housing bore for controlled drive-up the catalogue pairs this seat with the HMV 24 E hydraulic nut (size 24); at 1,850 g the sleeve and bearing together are too heavy to seat reliably with a hook spanner alone the 10 mm difference between the 110 mm shaft and the 120 mm nominal seat diameter is bridged by taper contraction as the slit sleeve closes during drive-up, rather than by machining the shaft the M 120x2 thread spans about 36.0 nut turns across the 72 mm width; each indexed turn is a measurable drive-up step when setting the bearing clearance on the 120 mm seat the 110 mm shaft diameter places this in the medium band, where adapter mounting starts to beat press fits because no heating or pressing equipment is needed on site with H 3024 E the locking device lives inside the KMFE 24 nut itself: a friction screw engages the M 120x2 thread, so the outer washer and its bent tab disappear from the assembly within the large-size H 30 range for 230..K spherical roller bearings this is the 110 mm shaft step; neighbouring steps keep the same hardware concept while the taper seat grows to 120x155 mm here the delivery includes the KMFE 24 lock nut, and the HMV 24 E hydraulic nut is the associated drive-up tool typical applications include agricultural machinery axle and PTO shafts, mining crusher and screen exciter shafts and paper machine roll and cylinder journals adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 120 mm bore bearing on a 110 mm shaft in paper machine roll and cylinder journals the sleeve lets the designer use a plain, unstepped shaft and still locate the bearing positively; only one shoulder is needed, opposite the KMFE 24 nut full specification chain for H 3024 E reads 110 mm shaft / 120 mm seat / 155 mm OD / 72 mm width / M 120x2 / KMFE 24 self-locking nut, drive-up tool HMV 24 E / 1,850 g
Typical equipment & failure modes
Common applications
- quarry conveyor head and tail drums
- agricultural machinery axle and PTO shafts
- printing press cylinder journals
- conveyor pulley and drum bearing seats
Known failure patterns
- the integral locking screw must be set to the catalogue torque; over-setting galls the M 120x2 thread and makes removal difficult
- over-driving the taper eliminates bearing internal clearance entirely; clearance reduction must be measured with feeler gauges, not estimated from nut torque
- greasing the tapered seat or shaft destroys the dry friction the joint relies on; a lubricated taper can let the whole sleeve spin under load
- with no washer as a back-up, a slack locking screw is the only way the KMFE 24 nut can unwind — verify it after the first run
- the KMFE 24 self-locking nut must not be replaced with a standard KM nut, which has no integral device to grip the thread
Selection pitfalls — read before you substitute
- the integral locking screw must be set to the catalogue torque; over-setting galls the M 120x2 thread and makes removal difficult
- greasing the tapered seat or shaft destroys the dry friction the joint relies on; a lubricated taper can let the whole sleeve spin under load
- a fretted or corroded shaft seat cannot be rescued by a new sleeve — the thin wall conforms to the damage and clamping force collapses
Frequently asked questions
What shaft size does the H-3024-E adapter sleeve fit?
the fit is 110 mm shaft to 120 mm bearing bore via the 1:12 taper; H-3024-E has a 155 mm outside diameter and a 72 mm overall width.
What does the H 3024 E designation mean?
the letters give the execution and the digits give the bore: H 3024 E belongs to H30, fits 120 mm tapered-bore bearings, and the E marks the KMFE self-locking nut execution.
What is supplied with the H-3024-E?
You receive the sleeve plus KMFE 24 lock nut. One nut turn on the M 120x2 thread advances 2 mm along the 1:12 taper.
How much does the H-3024-E adapter sleeve weigh?
1,850 g for the 72 mm-long slit bush — the equivalent of 15.4 g per millimetre of the 120 mm bore.
How is the H-3024-E mounted on the shaft?
Mount dry and clean: drive the bearing up the 1:12 taper by turning KMFE 24 on the M 120x2 thread, using the HMV 24 E hydraulic nut for force, verify clearance with feeler gauges, then apply the nut-integrated lock.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 23.1 adapter sleeves for metric shafts on 2026-09-30. Read our editorial & correction policy.