H-310-E adapter sleeve: complete specifications & mounting data

The H-310-E is an adapter sleeve sized 50 x 70 x 42 mm (tapered bore x sleeve OD x width) for a plain 45 mm metric shaft with M 50x1,5 thread supplied with the KMFE 10 lock nut at 300 g per ISO 2982-1. Verify dimensions against the official catalog before ordering.

Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 70 mm d = 50 B = 42 mm side section front view
Principal dimensions: bore d 50 mm, outer diameter D 70 mm, width B 42 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand SKF
Bore diameter d 50 mm
Outer diameter D 70 mm
Width B 42 mm
Fits shaft diameter 45 mm
Sleeve thread G M 50x1,5
Included lock nut KMFE 10
Associated hydraulic nut HMV 10 E
Material Carbon_Steel
Mass 300 g
Manufacturer designation H 310 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 d1.969 in
Outer diameter D2.756 in
Width B1.654 in
ISO bore code—
Radial section height (D−d)/210 mm
Smallest bore in H3-series20 mm
Largest outer diameter in H3-series145 mm
Width range across H3-series28–77 mm
Bore position in H3-series (smallest first)7 of 18
Bore above smallest H3-series size30 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
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-310-E model number is decoded

for controlled drive-up the catalogue pairs this seat with the HMV 10 E hydraulic nut (size 10); at 300 g the sleeve and bearing together are too heavy to seat reliably with a hook spanner alone a width-to-bore ratio of 0.84 gives a 42 mm tapered contact length; the longitudinal slit lets the sleeve close down radially, so the grip on the 45 mm shaft is purely frictional the M 50x1,5 thread spans about 28.0 nut turns across the 42 mm width; each indexed turn is a measurable drive-up step when setting the bearing clearance on the 50 mm seat this sleeve mounts a bearing with a 50 mm tapered bore onto a plain 45 mm shaft; the 70 mm outside diameter and 42 mm width define the tapered seat the bearing is driven onto 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 10 nut on the M 50x1,5 thread advances 1.5 mm and takes out roughly 0.125 mm of clearance the 45 mm size is the volume tier of the range; the KMFE 10 nut and its locking element suit routine field replacement without special tooling the E-suffix sleeve is paired with the KMFE 10 nut — its integral locking screw clamps the nut to the thread, a cleaner solution than a bent washer tab where the 50 mm seat is remounted often the H3 block is one of the ISO 2982-1 dimension plans; at this seat it means a 70 mm sleeve OD and the M 50x1,5 thread shared with the adjacent bore steps the catalogue row bundles the KMFE 10 lock nut and references the HMV 10 E hydraulic nut for the 50 mm seat typical applications include gearbox input and output shafts, food processing line drive shafts and agricultural machinery axle and PTO shafts adapter sleeves earn their place wherever a tapered-bore bearing must sit at any axial position on a plain shaft — here a 50 mm bore bearing on a 45 mm shaft in agricultural machinery axle and PTO 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 10 nut kit identity for this seat: sleeve H 310 E for a 45 mm shaft, 50x70x42 mm taper, M 50x1,5 thread, KMFE 10 self-locking nut, drive-up tool HMV 10 E, catalogue mass 300 g

Typical equipment & failure modes

Common applications

  • paper machine roll and cylinder journals
  • gearbox input and output shafts
  • mining crusher and screen exciter shafts
  • electric motor and generator shafts

Known failure patterns

  • neglecting the catalogue axial displacement value leaves the bearing either loose on the taper or preloaded hot in service
  • over-driving the taper eliminates bearing internal clearance entirely; clearance reduction must be measured with feeler gauges, not estimated from nut torque
  • 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
  • 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
  • the integral locking screw must be set to the catalogue torque; over-setting galls the M 50x1,5 thread and makes removal difficult

Selection pitfalls — read before you substitute

  • neglecting the catalogue axial displacement value leaves the bearing either loose on the taper or preloaded hot in service
  • 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
  • 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

Frequently asked questions

What shaft size does the H-310-E adapter sleeve fit?

H-310-E (H 310 E) mounts on a plain metric shaft of 45 mm and carries a bearing with a 50 mm tapered (K) bore; sleeve OD is 70 mm and width 42 mm.

What does the H 310 E designation mean?

H identifies a standard metric adapter sleeve in the H3 series; the size code encodes the 50 mm tapered bore (bore code × 5 mm). The E suffix means a KMFE lock nut with integral locking device is supplied.

What is supplied with the H-310-E?

The kit contains the KMFE 10 lock nut. The HMV 10 E hydraulic nut is the associated mounting tool.

How much does the H-310-E adapter sleeve weigh?

The listed mass is 300 g for the sleeve assembly at 50x70x42 mm — about 7.1 g per millimetre of sleeve width.

How is the H-310-E mounted on the shaft?

Lubricate the M 50x1,5 thread lightly, screw the KMFE 10 home, then tighten to the catalogue axial displacement while measuring clearance reduction on the 50 mm bearing, and finally bend set the integral locking screw.

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.