H-216 adapter sleeve: complete specifications & mounting data
The H-216 is an adapter sleeve sized 80 x 105 x 46 mm (tapered bore x sleeve OD x width) for a plain 70 mm metric shaft with M 80x2 thread supplied with the KM 16 lock nut at 810 g per ISO 2982-1. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 80 mm |
| Outer diameter D | 105 mm |
| Width B | 46 mm |
| Fits shaft diameter | 70 mm |
| Sleeve thread G | M 80x2 |
| Included lock nut | KM 16 |
| Included locking device | MB 16 |
| Associated hydraulic nut | HMV 16E |
| Material | Carbon_Steel |
| Mass | 810 g |
| Manufacturer designation | H 216 |
| 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 & H2-series range
| Bore d | 3.15 in |
|---|---|
| Outer diameter D | 4.134 in |
| Width B | 1.811 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 12.5 mm |
| Smallest bore in H2-series | 20 mm |
| Largest outer diameter in H2-series | 145 mm |
| Width range across H2-series | 24–63 mm |
| Bore position in H2-series (smallest first) | 12 of 17 |
| Bore above smallest H2-series size | 60 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-216 model number is decoded
the OD-to-bore ratio is 1.31: the 105 mm sleeve OD is only 12.5 mm of section beyond the 80 mm seat, leaving room for the bearing outer ring without enlarging the housing bore mass 810 g is 10.1 g per mm of bore; the sleeve with its KM 16 nut and MB 16 washer forms the complete 46 mm-wide mounting assembly the seat taper is 1:12, so each millimetre of axial drive-up removes about 1/12 mm of radial clearance; one turn of the KM 16 nut on the M 80x2 thread advances 2 mm and takes out roughly 0.167 mm of clearance mounting and dismounting stay purely mechanical: the KM 16 nut drives the taper home, and backing the nut off releases the 80 mm seat without oil-injection tooling the KM 16 lock nut carries size index 16, matching the bore-code family of the 80 mm seat; the nut engages the M 80x2 sleeve thread over its full width the 70 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 the H prefix names the basic metric adapter sleeve: a slit 1:12-taper bush supplied complete with the KM 16 lock nut and MB 16 locking washer — bending one washer tab into a nut slot secures the assembly dimensionally this sleeve belongs to the light-section H 2 range, commonly paired with 12..K self-aligning ball bearings; the 105 mm OD and 46 mm width follow the ISO 2982-1 boundary plan for that series the delivery includes the KM 16 lock nut and the MB 16 locking washer, and the HMV 16E hydraulic nut is the associated drive-up tool typical applications include rolling mill and steel plant roll seats, mining crusher and screen exciter shafts and textile machine roller shafts adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 80 mm bore bearing on a 70 mm shaft in textile machine roller shafts the sleeve lets the designer use a plain, unstepped shaft and still locate the bearing positively; only one shoulder is needed, opposite the KM 16 nut ordering digest — H 216: 70 mm plain shaft to 80 mm tapered bore, sleeve 105 mm OD and 46 mm wide, thread M 80x2, supplied with KM 16 nut with MB 16 washer, drive-up tool HMV 16E; listed mass is 810 g
Typical equipment & failure modes
Common applications
- quarry conveyor head and tail drums
- rolling mill and steel plant roll seats
- printing press cylinder journals
- conveyor pulley and drum bearing seats
Known failure patterns
- mounting without a fixed abutment lets the bearing walk axially; the sleeve needs a shaft shoulder opposite the lock nut
- over-driving the taper eliminates bearing internal clearance entirely; clearance reduction must be measured with feeler gauges, not estimated from nut torque
- reusing a stretched locking washer tab invites fatigue failure; the bent tab snaps off and the nut backs off undetected
- a fretted or corroded shaft seat cannot be rescued by a new sleeve — the thin wall conforms to the damage and clamping force collapses
- misaligning the slit with the load zone or belt-pull direction concentrates stress on the split; orient the slit away from the main load
Selection pitfalls — read before you substitute
- mounting without a fixed abutment lets the bearing walk axially; the sleeve needs a shaft shoulder opposite the lock nut
- reusing a stretched locking washer tab invites fatigue failure; the bent tab snaps off and the nut backs off undetected
- 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-216 adapter sleeve fit?
H 216 is listed for a 70 mm plain shaft; its tapered bore accepts 80 mm K-suffix bearings, the sleeve measures 105 mm OD and 46 mm wide.
What does the H 216 designation mean?
H 216: H-series metric adapter sleeve in the H2 dimension plan; the code resolves to a 80 mm tapered bore and a 70 mm shaft.
What is supplied with the H-216?
Supplied hardware is the KM 16 lock nut and MB 16 locking washer. Drive-up is done with the HMV 16E hydraulic nut.
How much does the H-216 adapter sleeve weigh?
It weighs 810 g; the figure is the sleeve-only catalogue mass, with the KM 16 nut counted on the same product row but the hydraulic tool ordered separately.
How is the H-216 mounted on the shaft?
Slide the sleeve onto the 70 mm plain shaft against the abutment, fit the bearing, turn the KM 16 nut with a hook spanner until the measured clearance drop matches the table, and lock it with one MB 16 tab.
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.