H-307-E adapter sleeve: complete specifications & mounting data
The H-307-E is an adapter sleeve sized 35 x 52 x 35 mm (tapered bore x sleeve OD x width) for a plain 30 mm metric shaft with M 35x1,5 thread supplied with the KMFE 7 lock nut at 150 g per ISO 2982-1. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 35 mm |
| Outer diameter D | 52 mm |
| Width B | 35 mm |
| Fits shaft diameter | 30 mm |
| Sleeve thread G | M 35x1,5 |
| Included lock nut | KMFE 7 |
| Material | Carbon_Steel |
| Mass | 150 g |
| Manufacturer designation | H 307 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 & H3-series range
| Bore d | 1.378 in |
|---|---|
| Outer diameter D | 2.047 in |
| Width B | 1.378 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 8.5 mm |
| Smallest bore in H3-series | 20 mm |
| Largest outer diameter in H3-series | 145 mm |
| Width range across H3-series | 28–77 mm |
| Bore position in H3-series (smallest first) | 4 of 18 |
| Bore above smallest H3-series size | 15 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-307-E model number is decoded
the annular envelope between 35 mm bore and 52 mm OD is about 1,162 mm² in cross section, which sets the 150 g mass at steel density for the 35 mm-long slit bush the M 35x1,5 thread spans about 23.3 nut turns across the 35 mm width; each indexed turn is a measurable drive-up step when setting the bearing clearance on the 35 mm seat the OD-to-bore ratio is 1.49: the 52 mm sleeve OD is only 8.5 mm of section beyond the 35 mm seat, leaving room for the bearing outer ring without enlarging the housing bore mounting and dismounting stay purely mechanical: the KMFE 7 nut drives the taper home, and backing the nut off releases the 35 mm seat without oil-injection tooling the KMFE 7 lock nut carries size index 7, matching the bore-code family of the 35 mm seat; the nut engages the M 35x1,5 sleeve thread over its full width the 30 mm size is the volume tier of the range; the KMFE 7 nut and its locking element suit routine field replacement without special tooling H 307 E keeps the same 35x52x35 mm sleeve geometry as the plain H size; only the locking concept changes to the integrated device inside the KMFE 7 nut as part of the medium-section H 3 range, the default seat for 13..K and 22..K self-aligning ball bearings and 222..K spherical roller bearings, this size keeps series-standard proportions: 35 mm width on a 35 mm bore, so the bearing lands at the catalogue axial position the row bundles the KMFE 7 lock nut; dismounting means backing the nut off and drifting the 35 mm sleeve loose along the taper typical applications include printing press cylinder journals, paper machine roll and cylinder journals and conveyor pulley and drum bearing seats adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 35 mm bore bearing on a 30 mm shaft in conveyor pulley and drum bearing seats the sleeve lets the designer use a plain, unstepped shaft and still locate the bearing positively; only one shoulder is needed, opposite the KMFE 7 nut ordering digest — H 307 E: 30 mm plain shaft to 35 mm tapered bore, sleeve 52 mm OD and 35 mm wide, thread M 35x1,5, supplied with KMFE 7 self-locking nut; listed mass is 150 g
Typical equipment & failure modes
Common applications
- food processing line drive shafts
- printing press cylinder journals
- quarry conveyor head and tail drums
- conveyor pulley and drum bearing seats
Known failure patterns
- 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
- misaligning the slit with the load zone or belt-pull direction concentrates stress on the split; orient the slit away from the main load
- 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
- the integral locking screw must be set to the catalogue torque; over-setting galls the M 35x1,5 thread and makes removal difficult
- with no washer as a back-up, a slack locking screw is the only way the KMFE 7 nut can unwind — verify it after the first run
Selection pitfalls — read before you substitute
- 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
- 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 7 nut can unwind — verify it after the first run
Frequently asked questions
What shaft size does the H-307-E adapter sleeve fit?
H 307 E is listed for a 30 mm plain shaft; its tapered bore accepts 35 mm K-suffix bearings, the sleeve measures 52 mm OD and 35 mm wide.
What does the H 307 E designation mean?
H 307 E: H-series metric adapter sleeve in the H3 dimension plan; the code resolves to a 35 mm tapered bore and a 30 mm shaft.
What is supplied with the H-307-E?
Supplied hardware is the KMFE 7 lock nut. No hydraulic tooling is listed for the 30 mm shaft size.
How much does the H-307-E adapter sleeve weigh?
It weighs 150 g; the figure is the sleeve-only catalogue mass, with the KMFE 7 nut counted on the same product row but the hydraulic tool ordered separately.
How is the H-307-E mounted on the shaft?
Slide the sleeve onto the 30 mm plain shaft against the abutment, fit the bearing, turn the KMFE 7 nut with a hook spanner until the measured clearance drop matches the table, and lock it via its integral 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.