OH-3188-H adapter sleeve: complete specifications & mounting data

Specification table

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.

Cross references & equivalents

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-3188-H model number is decoded

the annular envelope between 440 mm bore and 560 mm OD is about 94,248 mm² in cross section, which sets the 95,000 g mass at steel density for the 307 mm-long slit bush a width-to-bore ratio of 0.70 gives a 307 mm tapered contact length; the longitudinal slit lets the sleeve close down radially, so the grip on the 410 mm shaft is purely frictional the HM 3188 lock nut carries size index 3188, matching the bore-code family of the 440 mm seat; the nut engages the Tr 440x5 sleeve thread over its full width the OD-to-bore ratio is 1.27: the 560 mm sleeve OD is only 60 mm of section beyond the 440 mm seat, leaving room for the bearing outer ring without enlarging the housing bore oil reaches the interface through the M 8 duct connection into distribution grooves, so the 95,000 g sleeve can be floated off the 410 mm shaft instead of being pressed or pulled at 410 mm the 307 mm-wide seat and its HM 3188 nut are crane-handled components; injection pressure and drive-up distance are logged procedures rather than workshop judgement the OH design carries oil ducts and distribution grooves machined into the taper; with the oil film established the sleeve slides with almost no metallic contact, protecting both the 410 mm shaft and the 440 mm bearing bore the OH31 block is one of the ISO 2982-1 dimension plans; at this seat it means a 560 mm sleeve OD and the Tr 440x5 thread shared with the adjacent bore steps the catalogue row bundles the HM 3188 lock nut and the MS 3192-88 locking clip and references the HMV 88E hydraulic nut for the 440 mm seat typical applications include marine winch and deck machinery shafts, industrial fan and blower impeller shafts and cement plant kiln and mill trunnion drives adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 440 mm bore bearing on a 410 mm shaft in cement plant kiln and mill trunnion drives the sleeve lets the designer use a plain, unstepped shaft and still locate the bearing positively; only one shoulder is needed, opposite the HM 3188 nut kit identity for this seat: sleeve OH 3188 H for a 410 mm shaft, 440x560x307 mm taper, Tr 440x5 thread, HM 3188 nut with MS 3192-88 clip, drive-up tool HMV 88E, catalogue mass 95,000 g

Typical equipment & failure modes

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
• interchanging nut families (KM vs KMFE, MB vs MS) across executions loses locking reliability even when the thread appears to fit
• over-driving the taper eliminates bearing internal clearance entirely; clearance reduction must be measured with feeler gauges, not estimated from nut torque