H-315-E adapter sleeve: complete specifications & mounting data
The H-315-E is an adapter sleeve sized 75 x 98 x 55 mm (tapered bore x sleeve OD x width) for a plain 65 mm metric shaft with M 75x2 thread supplied with the KMFE 15 lock nut at 820 g per ISO 2982-1. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 75 mm |
| Outer diameter D | 98 mm |
| Width B | 55 mm |
| Fits shaft diameter | 65 mm |
| Sleeve thread G | M 75x2 |
| Included lock nut | KMFE 15 |
| Associated hydraulic nut | HMV 15 E |
| Material | Carbon_Steel |
| Mass | 820 g |
| Manufacturer designation | H 315 E |
| 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 & H3-series range
| Bore d | 2.953 in |
|---|---|
| Outer diameter D | 3.858 in |
| Width B | 2.165 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 11.5 mm |
| Smallest bore in H3-series | 20 mm |
| Largest outer diameter in H3-series | 145 mm |
| Width range across H3-series | 28–77 mm |
| Bore position in H3-series (smallest first) | 12 of 18 |
| Bore above smallest H3-series size | 55 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-315-E model number is decoded
this sleeve mounts a bearing with a 75 mm tapered bore onto a plain 65 mm shaft; the 98 mm outside diameter and 55 mm width define the tapered seat the bearing is driven onto the OD-to-bore ratio is 1.31: the 98 mm sleeve OD is only 11.5 mm of section beyond the 75 mm seat, leaving room for the bearing outer ring without enlarging the housing bore the 10 mm difference between the 65 mm shaft and the 75 mm nominal seat diameter is bridged by taper contraction as the slit sleeve closes during drive-up, rather than by machining the shaft 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 KMFE 15 nut on the M 75x2 thread advances 2 mm and takes out roughly 0.167 mm of clearance the sleeve wall is 11.5 mm thick at the small end — 15.3% of the 75 mm bore — thin enough to contract evenly onto the 65 mm shaft while keeping the seat round under the clamping load the 65 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 the E suffix marks the variant supplied with the KMFE 15 nut, which carries an integral locking screw — no separate locking washer is needed, and the nut locks itself on the M 75x2 thread dimensionally this sleeve belongs to 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; the 98 mm OD and 55 mm width follow the ISO 2982-1 boundary plan for that series the delivery includes the KMFE 15 lock nut, and the HMV 15 E hydraulic nut is the associated drive-up tool typical applications include conveyor pulley and drum bearing seats, pump shafts in water and process plants and industrial fan and blower impeller shafts adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 75 mm bore bearing on a 65 mm shaft in industrial fan and blower impeller shafts the sleeve lets the designer use a plain, unstepped shaft and still locate the bearing positively; only one shoulder is needed, opposite the KMFE 15 nut full specification chain for H 315 E reads 65 mm shaft / 75 mm seat / 98 mm OD / 55 mm width / M 75x2 / KMFE 15 self-locking nut, drive-up tool HMV 15 E / 820 g
Typical equipment & failure modes
Common applications
- woodworking saw and planer spindles
- conveyor pulley and drum bearing seats
- marine winch and deck machinery shafts
- cement plant kiln and mill trunnion drives
Known failure patterns
- 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
- reusing a stretched locking washer tab invites fatigue failure; the bent tab snaps off and the nut backs off undetected
- 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 without a fixed abutment lets the bearing walk axially; the sleeve needs a shaft shoulder opposite the lock nut
Selection pitfalls — read before you substitute
- 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
- reusing a stretched locking washer tab invites fatigue failure; the bent tab snaps off and the nut backs off undetected
- neglecting the catalogue axial displacement value leaves the bearing either loose on the taper or preloaded hot in service
Frequently asked questions
What shaft size does the H-315-E adapter sleeve fit?
the fit is 65 mm shaft to 75 mm bearing bore via the 1:12 taper; H-315-E has a 98 mm outside diameter and a 55 mm overall width.
What does the H 315 E designation mean?
the letters give the execution and the digits give the bore: H 315 E belongs to H3, fits 75 mm tapered-bore bearings, and the E marks the KMFE self-locking nut execution.
What is supplied with the H-315-E?
You receive the sleeve plus KMFE 15 lock nut. One nut turn on the M 75x2 thread advances 2 mm along the 1:12 taper.
How much does the H-315-E adapter sleeve weigh?
820 g for the 55 mm-long slit bush — the equivalent of 10.9 g per millimetre of the 75 mm bore.
How is the H-315-E mounted on the shaft?
Mount dry and clean: drive the bearing up the 1:12 taper by turning KMFE 15 on the M 75x2 thread, using the HMV 15 E hydraulic nut for force, verify clearance with feeler gauges, then apply the nut-integrated lock.
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.