H-210 adapter sleeve: complete specifications & mounting data
The H-210 is an adapter sleeve sized 50 x 70 x 35 mm (tapered bore x sleeve OD x width) for a plain 45 mm metric shaft with M 50x1,5 thread supplied with the KM 10 lock nut at 240 g per ISO 2982-1. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 50 mm |
| Outer diameter D | 70 mm |
| Width B | 35 mm |
| Fits shaft diameter | 45 mm |
| Sleeve thread G | M 50x1,5 |
| Included lock nut | KM 10 |
| Included locking device | MB 10 |
| Associated hydraulic nut | HMV 10E |
| Material | Carbon_Steel |
| Mass | 240 g |
| Manufacturer designation | H 210 |
| 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 | 1.969 in |
|---|---|
| Outer diameter D | 2.756 in |
| Width B | 1.378 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 10 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) | 7 of 17 |
| Bore above smallest H2-series size | 30 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-210 model number is decoded
the sleeve wall is 10 mm thick at the small end — 20.0% of the 50 mm bore — thin enough to contract evenly onto the 45 mm shaft while keeping the seat round under the clamping load the KM 10 lock nut carries size index 10, matching the bore-code family of the 50 mm seat; the nut engages the M 50x1,5 sleeve thread over its full width for controlled drive-up the catalogue pairs this seat with the HMV 10E hydraulic nut (size 10); at 240 g the sleeve and bearing together are too heavy to seat reliably with a hook spanner alone a width-to-bore ratio of 0.70 gives a 35 mm tapered contact length; the longitudinal slit lets the sleeve close down radially, so the grip on the 45 mm shaft is purely frictional mass 240 g is 4.8 g per mm of bore; the sleeve with its KM 10 nut and MB 10 washer forms the complete 35 mm-wide mounting assembly with a 45 mm shaft this sleeve covers the most frequently replaced bearing seats, where using a plain shaft and sleeve avoids the cost of a stepped, ground shaft H 210 is the classic nut-and-washer sleeve — the KM 10 nut drives the bearing up the taper and the MB 10 washer, keyed to the sleeve thread, locks the nut once a tab is bent into place as part of the light-section H 2 range, commonly paired with 12..K self-aligning ball bearings, this size keeps series-standard proportions: 35 mm width on a 50 mm bore, so the bearing lands at the catalogue axial position the KM 10 lock nut and the MB 10 locking washer ship in the kit; controlled drive-up uses the HMV 10E hydraulic nut rather than a spanner typical applications include woodworking saw and planer spindles, cement plant kiln and mill trunnion drives and marine winch and deck machinery shafts adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 50 mm bore bearing on a 45 mm shaft in marine winch and deck machinery 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 10 nut ordering digest — H 210: 45 mm plain shaft to 50 mm tapered bore, sleeve 70 mm OD and 35 mm wide, thread M 50x1,5, supplied with KM 10 nut with MB 10 washer, drive-up tool HMV 10E; listed mass is 240 g
Typical equipment & failure modes
Common applications
- agricultural machinery axle and PTO shafts
- woodworking saw and planer spindles
- paper machine roll and cylinder journals
- mining crusher and screen exciter shafts
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
- mounting without a fixed abutment lets the bearing walk axially; the sleeve needs a shaft shoulder opposite the lock nut
- hammering the sleeve directly instead of driving through the nut damages the 35 mm slit edge
- bending more than one washer tab to force alignment work-hardens both tabs; choose the single closest slot only
- a plain KM nut used without its MB washer has no anti-rotation feature and will unthread under vibration
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
- hammering the sleeve directly instead of driving through the nut damages the 35 mm slit edge
- misaligning the slit with the load zone or belt-pull direction concentrates stress on the split; orient the slit away from the main load
Frequently asked questions
What shaft size does the H-210 adapter sleeve fit?
H 210 is listed for a 45 mm plain shaft; its tapered bore accepts 50 mm K-suffix bearings, the sleeve measures 70 mm OD and 35 mm wide.
What does the H 210 designation mean?
H 210: H-series metric adapter sleeve in the H2 dimension plan; the code resolves to a 50 mm tapered bore and a 45 mm shaft.
What is supplied with the H-210?
Supplied hardware is the KM 10 lock nut and MB 10 locking washer. Drive-up is done with the HMV 10E hydraulic nut.
How much does the H-210 adapter sleeve weigh?
It weighs 240 g; the figure is the sleeve-only catalogue mass, with the KM 10 nut counted on the same product row but the hydraulic tool ordered separately.
How is the H-210 mounted on the shaft?
Slide the sleeve onto the 45 mm plain shaft against the abutment, fit the bearing, turn the KM 10 nut with a hook spanner until the measured clearance drop matches the table, and lock it with one MB 10 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.