LM567949-910-HA1 bearing: complete specifications & equivalents
The LM567949-910-HA1 is a ISO 355 radial bearing sized 406.4 x 549.275 x 85.725 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 406.4 mm |
| Outer diameter D | 549.275 mm |
| Width B | 85.725 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1467 kN |
| Basic static load rating C0 | 3050 kN |
| Fatigue load limit Pu | 236 kN |
| Reference speed (thermal) | 700 rpm |
| Limiting speed (mechanical) | 950 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 53500 g |
| Manufacturer designation | SKF LM 567949/910/HA1 |
| 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 & LM567900-series range
| Bore d | 16 in |
|---|---|
| Outer diameter D | 21.625 in |
| Width B | 3.375 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 71.4 mm |
| Smallest bore in LM567900-series | 406.4 mm |
| Largest outer diameter in LM567900-series | 549.275 mm |
| Width range across LM567900-series | 85.725–85.725 mm |
| Bore position in LM567900-series (smallest first) | 1 of 1 |
| Bore above smallest LM567900-series size | 0 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| LM567949-910-HA1 | 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 LM567949-910-HA1 model number is decoded
From a specification standpoint the 910/HA1 cup is the controlling half of LM567949 for housing design — it sets the 549.275 mm OD and the outer abutment diameter — while the LM 567949 cone controls shaft fit at the 406.4 mm bore; the 85.725 mm width is the result of the two together.For a 406.4 mm shaft carrying combined load, SKF lists LM567949 under catalogue execution SKF LM 567949/910/HA1: one open single-row tapered roller bearing in the inch LM567900-series.The code breaks down as cone/cup: the numbers before and after the slash identify the inner and outer ring sets, and the series prefix (LM567900-series) ties the pair to a specific boundary plan. Dimensions 406.4×549.275×85.725 mm are the converted metric envelope. The SKF catalogue adds the ISO 355 dimension-series code after the bare number (e.g. ); it is the dimensional series, not a separate part number. At 700 r/min reference speed the 71.4 mm-section LM567949 is governed thermally by preload and lubricant flow; grease or oil selection should be made against that value, with 950 r/min as the mechanical ceiling. Specify pairs rather than single units wherever thrust reverses: the tapered contact of LM567949 generates an induced axial load under radial force, and an unpaired bearing on a reversing shaft will run slack and fret its seat. Dimensional interchange map: within the LM500 series at 406.4 mm bore, the 549.275 mm OD and 85.725 mm width are fixed by the ISO 355 plan, so any same-code bearing from another brand shares the mounting envelope; the 71.4 mm section height distinguishes this family from a 302 or 322 of the same bore, and the 53500 g mass is the minimum—sealed or snap-ring executions add rotating weight above that catalogue baseline.
Typical equipment & failure modes
Common applications
- heavy-duty rolling-mill gearboxes
- large crusher and mineral-processing drives
- wind-turbine main 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
- false brinelling on idle paired sets exposed to machine vibration
- roller large-end smearing against the cone rib after EP lubricant film failure
- 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 406.4 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 LM567900-series inch series at 406.4 mm bore (549.275×85.725 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.
- Do not mix brands or executions inside one LM567949 pair — matched sets are ground for a specific setting, and pairing a SKF basic unit with a different suffix variant will not share the setting evenly.
- When the outer ring rotates, reverse the fit logic and provide cup location; the tapered contact of LM567949 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 549.275 mm cup race release as noise within the first running hours.
- The 1467/3050 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 LM567949 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF LM 567949/910/HA1 designation when purchasing and match the execution to the mounting arrangement.
Frequently asked questions
Is LM567949 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 LM567949?
The SKF LM 567949/910/HA1 is a single-row tapered roller bearing with 406.4 mm bore, 549.275 mm outer diameter and 85.725 mm width (16 × 21.625 × 3.375 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 1467 kN, C0 3050 kN, fatigue load limit Pu 236 kN, reference speed 700 r/min, limiting speed 950 r/min, mass about 53500 g. It is an open, separable bearing with a pressed-steel cage.
How does the LM567949 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 LM567900-series code marks the dimensional series. The metric dimensions 406.4×549.275×85.725 mm are the converted equivalents of the original inch boundary dimensions.
What do the cone and cup numbers in LM567949 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 (LM567900-series) groups sizes that share the same boundary-dimension plan.
Can a single LM567949 take axial load in both directions?
No — one single-row tapered roller bearing reacts thrust in one direction only, and under radial load its contact angle induces an axial force. Use two bearings as a matched pair: O (back-to-back) for a rigid, moment-resisting arrangement, X (face-to-face) where thermal expansion must be tolerated, or tandem where one-direction thrust is shared.
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.