H-3026-E adapter sleeve: complete specifications & mounting data
The H-3026-E is an adapter sleeve sized 130 x 165 x 80 mm (tapered bore x sleeve OD x width) for a plain 115 mm metric shaft with M 130x2 thread supplied with the KMFE 26 lock nut at 2,900 g per ISO 2982-1. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 130 mm |
| Outer diameter D | 165 mm |
| Width B | 80 mm |
| Fits shaft diameter | 115 mm |
| Sleeve thread G | M 130x2 |
| Included lock nut | KMFE 26 |
| Associated hydraulic nut | HMV 26 E |
| Material | Carbon_Steel |
| Mass | 2900 g |
| Manufacturer designation | H 3026 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 | 5.118 in |
|---|---|
| Outer diameter D | 6.496 in |
| Width B | 3.15 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) | 2 of 7 |
| Bore above smallest H30-series size | 10 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-3026-E model number is decoded
the KMFE 26 lock nut carries size index 26, matching the bore-code family of the 130 mm seat; the nut engages the M 130x2 sleeve thread over its full width the M 130x2 thread spans about 40.0 nut turns across the 80 mm width; each indexed turn is a measurable drive-up step when setting the bearing clearance on the 130 mm seat mounting and dismounting stay purely mechanical: the KMFE 26 nut drives the taper home, and backing the nut off releases the 130 mm seat without oil-injection tooling for controlled drive-up the catalogue pairs this seat with the HMV 26 E hydraulic nut (size 26); at 2,900 g the sleeve and bearing together are too heavy to seat reliably with a hook spanner alone this sleeve mounts a bearing with a 130 mm tapered bore onto a plain 115 mm shaft; the 165 mm outside diameter and 80 mm width define the tapered seat the bearing is driven onto with a 115 mm shaft this sleeve serves heavy machinery seats; the plain-shaft design saves the considerable machining cost of a stepped shaft at this diameter E on this catalogue number signals self-locking hardware — the KMFE 26 nut is tightened to the seat, then its integral screw is set against the M 130x2 thread as the final step the H30 designation block places it in the large-size H 30 range for 230..K spherical roller bearings — every sleeve in the block uses the same bore-code logic, and here the 130 mm tapered bore matches the K-suffix bearing it is ordered for the KMFE 26 lock nut ship in the kit; controlled drive-up uses the HMV 26 E hydraulic nut rather than a spanner typical applications include quarry conveyor head and tail drums, cement plant kiln and mill trunnion drives and printing press cylinder journals adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 130 mm bore bearing on a 115 mm shaft in printing press 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 26 nut kit identity for this seat: sleeve H 3026 E for a 115 mm shaft, 130x165x80 mm taper, M 130x2 thread, KMFE 26 self-locking nut, drive-up tool HMV 26 E, catalogue mass 2,900 g
Typical equipment & failure modes
Common applications
- agricultural machinery axle and PTO shafts
- quarry conveyor head and tail drums
- paper machine roll and cylinder journals
- mining crusher and screen exciter shafts
Known failure patterns
- neglecting the catalogue axial displacement value leaves the bearing either loose on the taper or preloaded hot in service
- a fretted or corroded shaft seat cannot be rescued by a new sleeve — the thin wall conforms to the damage and clamping force collapses
- driving the bearing via the outer ring during mounting loads the rolling elements; force is always applied through the lock nut on the inner ring
- the integral locking screw must be set to the catalogue torque; over-setting galls the M 130x2 thread and makes removal difficult
- with no washer as a back-up, a slack locking screw is the only way the KMFE 26 nut can unwind — verify it after the first run
Selection pitfalls — read before you substitute
- neglecting the catalogue axial displacement value leaves the bearing either loose on the taper or preloaded hot in service
- a fretted or corroded shaft seat cannot be rescued by a new sleeve — the thin wall conforms to the damage and clamping force collapses
- reusing a stretched locking washer tab invites fatigue failure; the bent tab snaps off and the nut backs off undetected
Frequently asked questions
What shaft size does the H-3026-E adapter sleeve fit?
H-3026-E (H 3026 E) mounts on a plain metric shaft of 115 mm and carries a bearing with a 130 mm tapered (K) bore; sleeve OD is 165 mm and width 80 mm.
What does the H 3026 E designation mean?
H identifies a standard metric adapter sleeve in the H30 series; the size code encodes the 130 mm tapered bore (bore code × 5 mm). The E suffix means a KMFE lock nut with integral locking device is supplied.
What is supplied with the H-3026-E?
The kit contains the KMFE 26 lock nut. The HMV 26 E hydraulic nut is the associated mounting tool.
How much does the H-3026-E adapter sleeve weigh?
The listed mass is 2,900 g for the sleeve assembly at 130x165x80 mm — about 36.3 g per millimetre of sleeve width.
How is the H-3026-E mounted on the shaft?
Lubricate the M 130x2 thread lightly, screw the KMFE 26 home, then tighten to the catalogue axial displacement while measuring clearance reduction on the 130 mm bearing, and finally bend set the integral locking screw.
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.