OH-3144-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-3144-H model number is decoded

the annular envelope between 220 mm bore and 280 mm OD is about 23,562 mm² in cross section, which sets the 15,000 g mass at steel density for the 161 mm-long slit bush a width-to-bore ratio of 0.73 gives a 161 mm tapered contact length; the longitudinal slit lets the sleeve close down radially, so the grip on the 200 mm shaft is purely frictional the Tr 220x4 thread spans about 40.3 nut turns across the 161 mm width; each indexed turn is a measurable drive-up step when setting the bearing clearance on the 220 mm seat the OD-to-bore ratio is 1.27: the 280 mm sleeve OD is only 30 mm of section beyond the 220 mm seat, leaving room for the bearing outer ring without enlarging the housing bore oil reaches the interface through the M 6 duct connection into distribution grooves, so the 15,000 g sleeve can be floated off the 200 mm shaft instead of being pressed or pulled the 200 mm tier marks the point where the HM 44 T nut alone cannot generate the required axial force, so the HMV 44E becomes part of the standard procedure 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 200 mm shaft and the 220 mm bearing bore the OH31 block is one of the ISO 2982-1 dimension plans; at this seat it means a 280 mm sleeve OD and the Tr 220x4 thread shared with the adjacent bore steps the catalogue row bundles the HM 44 T lock nut and the MB 44 locking clip and references the HMV 44E hydraulic nut for the 220 mm seat typical applications include marine winch and deck machinery shafts, textile machine roller 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 220 mm bore bearing on a 200 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 44 T nut kit identity for this seat: sleeve OH 3144 H for a 200 mm shaft, 220x280x161 mm taper, Tr 220x4 thread, HM 44 T nut with MB 44 clip, drive-up tool HMV 44E, catalogue mass 15,000 g

Typical equipment & failure modes

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
• over-driving the taper eliminates bearing internal clearance entirely; clearance reduction must be measured with feeler gauges, not estimated from nut torque
• a fretted or corroded shaft seat cannot be rescued by a new sleeve — the thin wall conforms to the damage and clamping force collapses