LM241147-110 bearing: complete specifications & equivalents
The LM241147-110 is a ISO 355 radial bearing sized 200.025 x 276.225 x 42.862 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 200.025 mm |
| Outer diameter D | 276.225 mm |
| Width B | 42.862 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 478 kN |
| Basic static load rating C0 | 780 kN |
| Fatigue load limit Pu | 72 kN |
| Reference speed (thermal) | 1700 rpm |
| Limiting speed (mechanical) | 2000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 7700 g |
| Manufacturer designation | SKF LM 241147/110 |
| 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 & LM241100-series range
| Bore d | 7.875 in |
|---|---|
| Outer diameter D | 10.875 in |
| Width B | 1.687 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 38.1 mm |
| Smallest bore in LM241100-series | 200.025 mm |
| Largest outer diameter in LM241100-series | 276.225 mm |
| Width range across LM241100-series | 42.862–42.862 mm |
| Bore position in LM241100-series (smallest first) | 1 of 2 |
| Bore above smallest LM241100-series size | 0 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| LM241147-110 | 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 LM241147-110 model number is decoded
Ordering number SKF LM 241147/110 in SKF catalogue PUB BU/P1 17000 denotes a single-row tapered roller bearing for a 200.025 mm shaft, inch series, with an open pressed-steel-cage execution and one-direction axial capacity.Reading the designation: LM241147 follows the Timken-style inch convention — the cone (inner ring with rollers) and cup (outer ring) are quoted as a pair separated by a slash, and the LM241100-series code identifies the dimensional series. The 200.025 mm bore, 276.225 mm OD and 42.862 mm width are the metric equivalents of the inch boundary dimensions. 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. Speed planning uses two different ceilings: 1,700 r/min thermal reference and 2,000 r/min mechanical limiting speed. Mounting practice for LM241147: the rotating cone takes the interference fit (m6 on a 200.025 mm shaft), the cup slides for axial location, and reversing-thrust duty demands a paired O/X set rather than one bearing. Material and manufacturing detail: the 7700 g catalogue mass reflects through-hardened bearing steel (density ~7.85 g/cm³) machined to the LM200 ISO envelope, with the pressed-steel cage contributing roughly 231 g of the total; the 200.025 mm bore is ground to IT5 roundness and the 276.225 mm OD to IT5 cylindricity, and the 42.862 mm width tolerance keeps the pair-setting scatter within the ISO preload class. The cup reference 110 is structural, not a suffix: it identifies the outer ring that, combined with the LM 241147 cone, produces the 200.025/276.225/42.862 mm envelope catalogue-listed as LM241147. Quote the cup number in full when ordering — the LM241100-series tables contain other cups that fit the same cone but change the bearing.
Typical equipment & failure modes
Common applications
- large crusher and mineral-processing drives
- wind-turbine main shafts
- marine propulsion gearboxes
- large crusher and mineral-processing drives
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
- thermal preload runaway in an O-arrangement pair when inner-ring heat expands the setting
- 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
- electrical pitting on VFD-driven shafts without grounding protection
Selection pitfalls — read before you substitute
- At 200.025 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 LM241100-series inch series at 200.025 mm bore (276.225×42.862 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.
- The tapered contact angle creates an induced axial load under pure radial force; include it in the LM241147 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its rollers.
- At the 478 kN rating of LM241147, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 2,000 r/min speed end and heavier preload only where moment stiffness dominates.
- 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 276.225 mm cup race release as noise within the first running hours.
- The 478/780 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 LM241147 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF LM 241147/110 designation when purchasing and match the execution to the mounting arrangement.
Frequently asked questions
What are the dimensions and catalogue data of LM241147?
The SKF LM 241147/110 is a single-row tapered roller bearing with 200.025 mm bore, 276.225 mm outer diameter and 42.862 mm width (7.875 × 10.875 × 1.687 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 478 kN, C0 780 kN, fatigue load limit Pu 72 kN, reference speed 1,700 r/min, limiting speed 2,000 r/min, mass about 7700 g. It is an open, separable bearing with a pressed-steel cage.
How does the LM241147 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 LM241100-series code marks the dimensional series. The metric dimensions 200.025×276.225×42.862 mm are the converted equivalents of the original inch boundary dimensions.
What do the cone and cup numbers in LM241147 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 (LM241100-series) groups sizes that share the same boundary-dimension plan.
Can a single LM241147 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.
How does LM241147 compare with a ball bearing of the same bore?
A tapered roller bearing has line contact and a steep contact angle: much higher combined axial-plus-radial capacity and shock resistance than a ball bearing of the same bore, at the cost of speed, one-direction thrust, mandatory pairing for reversing loads and a minimum axial load requirement. A ball bearing cannot be dropped into a combined-load LM241147 position and vice versa — verify load direction, Fa/Fr ratio and speed before substituting.
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.