H242649-610 bearing: complete specifications & equivalents
The H242649-610 is a ISO 355 radial bearing sized 206.375 x 336.55 x 98.425 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 206.375 mm |
| Outer diameter D | 336.55 mm |
| Width B | 98.425 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1230 kN |
| Basic static load rating C0 | 2160 kN |
| Fatigue load limit Pu | 190 kN |
| Reference speed (thermal) | 1300 rpm |
| Limiting speed (mechanical) | 1800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 34000 g |
| Manufacturer designation | SKF H 242649/610 |
| Standard | ISO 355 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB |
| Last verified | 2026-09-28 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB) · extracted 2026-09-28
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB); 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 & H242600-series range
| Bore d | 8.125 in |
|---|---|
| Outer diameter D | 13.25 in |
| Width B | 3.875 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 65.1 mm |
| Smallest bore in H242600-series | 206.375 mm |
| Largest outer diameter in H242600-series | 336.55 mm |
| Width range across H242600-series | 98.425–98.425 mm |
| Bore position in H242600-series (smallest first) | 1 of 1 |
| Bore above smallest H242600-series size | 0 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| H242649-610 | Timken | full Dimensions and internal design equivalent — standard interchange. | Same inch-series cone/cup boundary envelope (d/D/T); load ratings and speed limits are brand-specific and may differ. |
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 H242649-610 model number is decoded
Dimensional interchange map: within the H2400 series at 206.375 mm bore, the 336.55 mm OD and 98.425 mm width are fixed by the ISO 355 plan, so any same-code bearing from another brand shares the mounting envelope; the 65.1 mm section height distinguishes this family from a 302 or 322 of the same bore, and the 34000 g mass is the minimum—sealed or snap-ring executions add rotating weight above that catalogue baseline. A single-row inch tapered bearing is quoted as a cone/cup pair because the boundary dimensions belong to the combination, not to either half alone: in H242649 the H 242649 cone contributes the 206.375 mm bore and roller set, the 610 cup contributes the 336.55 mm OD raceway, and the assembled 98.425 mm width is the catalogue value.SKF H242649 (SKF H 242649/610) is the H242600-series tapered roller choice for a 206.375 mm shaft — one row of tapered rollers on an asymmetric raceway inside the 336.55×98.425 mm envelope.In SKF inch-series tables H242649 sits at 206.375 mm bore (8.125 in) with a 336.55 mm cup OD and 98.425 mm total width — dimensions that trace back to the original Timken boundary plan for the H242600-series family. In SKF suffix language a bare H242649 is the standard execution; B marks a larger contact angle and Q or J2 mark clearance/cage variants, all quoted separately. Selection arithmetic: the C0/C ratio is about 1.76 (static 2160 kN against dynamic 1230 kN), typical of a tapered roller sized for axial capacity, and the 190 kN fatigue load limit Pu is the equivalent-load floor used in the life calculation. Note the minimum-axial-load requirement: at light radial load and high speed the rollers of H242649 must still be held into the rib contact, which is another reason the catalogue recommends paired mounting with controlled setting.
Typical equipment & failure modes
Common applications
- wind-turbine main shafts
- marine propulsion gearboxes
- large industrial mixer shafts
- offshore winch and drawworks drums
Known failure patterns
- cup or cone misalignment when the separable rings are not seated square during mounting
- loose cup rotation in the housing when the specified press fit is not achieved
- uneven load sharing in a pair when spacer faces are not parallel to the bore
- uneven load sharing in a pair when spacer faces are not parallel to the bore
- pressed-steel cage wear or fracture after prolonged running above the limiting speed
- rib-roller contact scoring from loss of the EP additive film
Selection pitfalls — read before you substitute
- At 206.375 mm bore the cone mass is high enough that cocking during mounting damages the cage and rib; guide the ring square, confirm seat contact around the full circumference, and re-check setting after the first thermal cycle of the paired set.
- The H242600-series inch series at 206.375 mm bore (336.55×98.425 mm) follows the Timken cone/cup convention; substitutions must match both the cone and cup reference exactly — interchanging with another series or a metric 3xxxx bearing of the same bore changes OD, width and contact angle, so re-run the pair setting and shoulder-diameter checks before swapping.
- When the outer ring rotates, reverse the fit logic and provide cup location; the tapered contact of H242649 pushes the rings apart under load, so a non-located cup walks its seat even when the shaft is fixed.
- When the outer ring rotates, reverse the fit logic and provide cup location; the tapered contact of H242649 pushes the rings apart under load, so a non-located cup walks its seat even when the shaft is fixed.
- Never press both rings through the wrong element during fitting: force for an interference shaft seat goes through the cone only, or brinell marks on the 336.55 mm cup race release as noise within the first running hours.
- The 1230/2160 kN ratings are SKF catalogue 17000 values for the basic execution; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification and re-verify for critical drives.
- SKF lists several executions of H242649 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF H 242649/610 designation when purchasing and match the execution to the mounting arrangement.
Frequently asked questions
What shaft and housing fits suit H242649?
For a rotating shaft under normal load, seat the cone on a m6 shaft fit; the cup is usually a loose-to-transition fit in the housing so it can creep slightly and distribute wear. Chamfer and shoulder diameters must clear the bearing rings so the 98.425 mm-wide cup seats square; the mounting setting (end play or preload) is set by the axial position of the cup relative to the cone.
Is H242649 interchangeable with other brands?
Inch-series tapered roller bearings follow a long-standing industry boundary plan, so cones and cups of the same basic number are generally dimensionally interchangeable across manufacturers. However, internal geometry, cage design and load ratings differ by brand, so for paired or precision applications keep both halves of the set from one manufacturer — or re-verify ratings and setting when mixing.
What are the dimensions and catalogue data of H242649?
The SKF H 242649/610 is a single-row tapered roller bearing with 206.375 mm bore, 336.55 mm outer diameter and 98.425 mm width (8.125 × 13.25 × 3.875 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 1230 kN, C0 2160 kN, fatigue load limit Pu 190 kN, reference speed 1,300 r/min, limiting speed 1,800 r/min, mass about 34000 g. It is an open, separable bearing with a pressed-steel cage.
How does the H242649 inch-series designation work?
Inch-series tapered roller bearings use a Timken-style cone/cup convention: the number before the slash identifies the cone (inner ring with roller and cage assembly), the number after the slash identifies the cup (outer ring), and the H242600-series code marks the dimensional series. The metric dimensions 206.375×336.55×98.425 mm are the converted equivalents of the original inch boundary dimensions.
What do the cone and cup numbers in H242649 mean?
The cone number (before the slash) identifies the inner ring, rollers and cage; the cup number (after the slash) identifies the outer ring. Both are quoted together because a single-row tapered roller bearing is a matched separable pair — the cone and cup are ground to work together and are not interchangeable with arbitrary other parts. The series prefix (H242600-series) groups sizes that share the same boundary-dimension plan.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB on 2026-09-28. Read our editorial & correction policy.