H-3140 adapter sleeve: complete specifications & mounting data
The H-3140 is an adapter sleeve sized 200 x 250 x 150 mm (tapered bore x sleeve OD x width) for a plain 180 mm metric shaft with M 200x3 thread supplied with the KM 40 lock nut at 12,000 g per ISO 2982-1. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 200 mm |
| Outer diameter D | 250 mm |
| Width B | 150 mm |
| Fits shaft diameter | 180 mm |
| Sleeve thread G | M 200x3 |
| Included lock nut | KM 40 |
| Included locking device | MB 40 |
| Associated hydraulic nut | HMV 40 E |
| Material | Carbon_Steel |
| Mass | 12000 g |
| Manufacturer designation | H 3140 |
| 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 & H31-series range
| Bore d | 7.874 in |
|---|---|
| Outer diameter D | 9.843 in |
| Width B | 5.906 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 25 mm |
| Smallest bore in H31-series | 100 mm |
| Largest outer diameter in H31-series | 250 mm |
| Width range across H31-series | 76–150 mm |
| Bore position in H31-series (smallest first) | 11 of 11 |
| Bore above smallest H31-series size | 100 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-3140 model number is decoded
the annular envelope between 200 mm bore and 250 mm OD is about 17,671 mm² in cross section, which sets the 12,000 g mass at steel density for the 150 mm-long slit bush mass 12,000 g is 60.0 g per mm of bore; the sleeve with its KM 40 nut and MB 40 washer forms the complete 150 mm-wide mounting assembly the OD-to-bore ratio is 1.25: the 250 mm sleeve OD is only 25 mm of section beyond the 200 mm seat, leaving room for the bearing outer ring without enlarging the housing bore mounting and dismounting stay purely mechanical: the KM 40 nut drives the taper home, and backing the nut off releases the 200 mm seat without oil-injection tooling the KM 40 lock nut carries size index 40, matching the bore-code family of the 200 mm seat; the nut engages the M 200x3 sleeve thread over its full width the 180 mm tier marks the point where the KM 40 nut alone cannot generate the required axial force, so the HMV 40 E becomes part of the standard procedure H 3140 carries no hydraulic features — the slit sleeve, KM 40 nut and MB 40 washer do all the work mechanically, which keeps the kit simple for the 180 mm shaft size as part of the large-size H 31 range for 231..K spherical roller bearings, this size keeps series-standard proportions: 150 mm width on a 200 mm bore, so the bearing lands at the catalogue axial position the catalogue row bundles the KM 40 lock nut and the MB 40 locking washer and references the HMV 40 E hydraulic nut for the 200 mm seat typical applications include electric motor and generator shafts, food processing line drive shafts and rolling mill and steel plant roll seats adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 200 mm bore bearing on a 180 mm shaft in rolling mill and steel plant roll seats the sleeve lets the designer use a plain, unstepped shaft and still locate the bearing positively; only one shoulder is needed, opposite the KM 40 nut ordering digest — H 3140: 180 mm plain shaft to 200 mm tapered bore, sleeve 250 mm OD and 150 mm wide, thread M 200x3, supplied with KM 40 nut with MB 40 washer, drive-up tool HMV 40 E; listed mass is 12,000 g
Typical equipment & failure modes
Common applications
- paper machine roll and cylinder journals
- electric motor and generator shafts
- mining crusher and screen exciter shafts
- rolling mill and steel plant roll seats
Known failure patterns
- a plain KM nut used without its MB washer has no anti-rotation feature and will unthread under vibration
- 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
- interchanging nut families (KM vs KMFE, MB vs MS) across executions loses locking reliability even when the thread appears to fit
- hammering the sleeve directly instead of driving through the nut damages the 150 mm slit edge
- the shaft must be within h9 tolerance and free of scoring; an oversize or rough shaft stops the slit sleeve closing down and leaves the grip to the thread alone
Selection pitfalls — read before you substitute
- a plain KM nut used without its MB washer has no anti-rotation feature and will unthread under vibration
- interchanging nut families (KM vs KMFE, MB vs MS) across executions loses locking reliability even when the thread appears to fit
- 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-3140 adapter sleeve fit?
H 3140 is listed for a 180 mm plain shaft; its tapered bore accepts 200 mm K-suffix bearings, the sleeve measures 250 mm OD and 150 mm wide.
What does the H 3140 designation mean?
H 3140: H-series metric adapter sleeve in the H31 dimension plan; the code resolves to a 200 mm tapered bore and a 180 mm shaft.
What is supplied with the H-3140?
Supplied hardware is the KM 40 lock nut and MB 40 locking washer. Drive-up is done with the HMV 40 E hydraulic nut.
How much does the H-3140 adapter sleeve weigh?
It weighs 12,000 g; the figure is the sleeve-only catalogue mass, with the KM 40 nut counted on the same product row but the hydraulic tool ordered separately.
How is the H-3140 mounted on the shaft?
Slide the sleeve onto the 180 mm plain shaft against the abutment, fit the bearing, turn the KM 40 nut with a hook spanner until the measured clearance drop matches the table, and lock it with one MB 40 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.