H-317 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 H-317 model number is decoded

this sleeve mounts a bearing with a 85 mm tapered bore onto a plain 75 mm shaft; the 110 mm outside diameter and 63 mm width define the tapered seat the bearing is driven onto the OD-to-bore ratio is 1.29: the 110 mm sleeve OD is only 12.5 mm of section beyond the 85 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 KM 17 nut on the M 85x2 thread advances 2 mm and takes out roughly 0.167 mm of clearance the sleeve wall is 12.5 mm thick at the small end — 14.7% of the 85 mm bore — thin enough to contract evenly onto the 75 mm shaft while keeping the seat round under the clamping load a width-to-bore ratio of 0.74 gives a 63 mm tapered contact length; the longitudinal slit lets the sleeve close down radially, so the grip on the 75 mm shaft is purely frictional the 75 mm shaft diameter places this in the medium band, where adapter mounting starts to beat press fits because no heating or pressing equipment is needed on site with the H execution the KM 17 lock nut and MB 17 washer are delivered together — the washer is a single-use element that should be renewed whenever the 85 mm seat is remounted within the medium-section H 3 range, the default seat for 13..K and 22..K self-aligning ball bearings and 222..K spherical roller bearings this is the 75 mm shaft step; neighbouring steps keep the same hardware concept while the taper seat grows to 85x110 mm here the delivery includes the KM 17 lock nut and the MB 17 locking washer, and the HMV 17 E hydraulic nut is the associated drive-up tool typical applications include agricultural machinery axle and PTO shafts, pump shafts in water and process plants and paper machine roll and cylinder journals adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 85 mm bore bearing on a 75 mm shaft in paper machine roll and cylinder journals the sleeve lets the designer use a plain, unstepped shaft and still locate the bearing positively; only one shoulder is needed, opposite the KM 17 nut full specification chain for H 317 reads 75 mm shaft / 85 mm seat / 110 mm OD / 63 mm width / M 85x2 / KM 17 nut with MB 17 washer, drive-up tool HMV 17 E / 1,100 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
• reusing a stretched locking washer tab invites fatigue failure; the bent tab snaps off and the nut backs off undetected
• a fretted or corroded shaft seat cannot be rescued by a new sleeve — the thin wall conforms to the damage and clamping force collapses