OH-3080-H adapter sleeve: complete specifications & mounting data
The OH-3080-H is an adapter sleeve sized 400 x 470 x 210 mm (tapered bore x sleeve OD x width) for a plain 380 mm metric shaft with Tr 400x5 thread supplied with the HM 3080 lock nut at 40,000 g per ISO 2982-1. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 400 mm |
| Outer diameter D | 470 mm |
| Width B | 210 mm |
| Fits shaft diameter | 380 mm |
| Sleeve thread G | Tr 400x5 |
| Included lock nut | HM 3080 |
| Included locking device | MS 3080-76 |
| Associated hydraulic nut | HMV 80E |
| Material | Carbon_Steel |
| Mass | 40000 g |
| Manufacturer designation | OH 3080 H |
| 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 & OH30-series range
| Bore d | 15.748 in |
|---|---|
| Outer diameter D | 18.504 in |
| Width B | 8.268 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 35 mm |
| Smallest bore in OH30-series | 220 mm |
| Largest outer diameter in OH30-series | 630 mm |
| Width range across OH30-series | 126–265 mm |
| Bore position in OH30-series (smallest first) | 10 of 15 |
| Bore above smallest OH30-series size | 180 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| OH | 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 OH-3080-H model number is decoded
mass 40,000 g is 100.0 g per mm of bore; the sleeve with its HM 3080 nut and MS 3080-76 clip forms the complete 210 mm-wide mounting assembly the OD-to-bore ratio is 1.18: the 470 mm sleeve OD is only 35 mm of section beyond the 400 mm seat, leaving room for the bearing outer ring without enlarging the housing bore 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 HM 3080 nut on the Tr 400x5 thread advances 5 mm and takes out roughly 0.417 mm of clearance the 20 mm difference between the 380 mm shaft and the 400 mm nominal seat diameter is bridged by taper contraction as the slit sleeve closes during drive-up, rather than by machining the shaft the Tr 400x5 thread spans about 42.0 nut turns across the 210 mm width; each indexed turn is a measurable drive-up step when setting the bearing clearance on the 400 mm seat at 380 mm shaft diameter this sleeve sits in the extra-large band served by oil-injection execution: pressurised oil between the mating surfaces is the only practical way to mount and dismount at this size with OH 3080 H mounting is a hydraulic operation: connect the pump to the M 6 duct, inject oil between the mating surfaces, drive home with the HMV 80E nut, then lock with HM 3080 within the oil-injection OH 30 range for 230..K spherical roller bearings this is the 380 mm shaft step; neighbouring steps keep the same hardware concept while the taper seat grows to 400x470 mm here the delivery includes the HM 3080 lock nut and the MS 3080-76 locking clip, and the HMV 80E hydraulic nut is the associated drive-up tool typical applications include cement plant kiln and mill trunnion drives, woodworking saw and planer spindles and food processing line drive shafts adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 400 mm bore bearing on a 380 mm shaft in food processing line drive shafts the sleeve lets the designer use a plain, unstepped shaft and still locate the bearing positively; only one shoulder is needed, opposite the HM 3080 nut full specification chain for OH 3080 H reads 380 mm shaft / 400 mm seat / 470 mm OD / 210 mm width / Tr 400x5 / HM 3080 nut with MS 3080-76 clip, drive-up tool HMV 80E / 40,000 g
Typical equipment & failure modes
Common applications
- pump shafts in water and process plants
- cement plant kiln and mill trunnion drives
- gearbox input and output shafts
- agricultural machinery axle and PTO shafts
Known failure patterns
- exceeding the maximum injection pressure for the 400 mm seat can permanently expand the thin sleeve wall
- interchanging nut families (KM vs KMFE, MB vs MS) across executions loses locking reliability even when the thread appears to fit
- mounting with the HMV 80E hydraulic nut but without injecting oil first overloads the Tr 400x5 thread and can seize the nut
- 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
- over-driving the taper eliminates bearing internal clearance entirely; clearance reduction must be measured with feeler gauges, not estimated from nut torque
Selection pitfalls — read before you substitute
- exceeding the maximum injection pressure for the 400 mm seat can permanently expand the thin sleeve wall
- 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
- mounting with the HMV 80E hydraulic nut but without injecting oil first overloads the Tr 400x5 thread and can seize the nut
Frequently asked questions
What shaft size does the OH-3080-H adapter sleeve fit?
the fit is 380 mm shaft to 400 mm bearing bore via the 1:12 taper; OH-3080-H has a 470 mm outside diameter and a 210 mm overall width.
What does the OH 3080 H designation mean?
the letters give the execution and the digits give the bore: OH 3080 H belongs to OH30, fits 400 mm tapered-bore bearings, with oil-injection ducts marked by OH/H.
What is supplied with the OH-3080-H?
You receive the sleeve plus HM 3080 lock nut and MS 3080-76 locking clip. One nut turn on the Tr 400x5 thread advances 5 mm along the 1:12 taper.
How much does the OH-3080-H adapter sleeve weigh?
40,000 g for the 210 mm-long slit bush — the equivalent of 100.0 g per millimetre of the 400 mm bore.
How is the OH-3080-H mounted on the shaft?
Oil injection plus the HMV 80E: the oil film parts the 400 mm seat while the nut provides controlled force; release pressure and secure the HM 3080/MS 3080-76 lock at the final position.
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.