LM545848-810 bearing: complete specifications & equivalents

Specification table

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.

Cross references & equivalents

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 LM545848-810 model number is decoded

With C 608 kN and C0 1000 kN, the LM545848 pair-sizing check is dominated by the axial share: keep the equivalent load P below the rating at the required L10, remembering one bearing alone cannot cover reversing thrust at 1,800 r/min. Because the contact line is tapered, one LM545848 reacts thrust in a single direction; bidirectional shafts need an O or X pair, and a rotating cone on a 234.848 mm shaft typically takes a m6 seat with an H7 housing bore. Load system: the 608 kN basic dynamic rating C and 1000 kN static rating C0 give a C0/C balance of 1.64, and dividing C by the 234.848 mm bore yields 2.59 kN per millimetre of journal — a density metric that compares across families; the 91.5 kN fatigue limit Pu is the floor beneath which the adjusted-life calculation drops below acceptable L10 hours for a 234.848 mm shaft carrying variable duty. Two catalogue entries share the LM 545848 cone but use different cups; this one, LM545848, takes the 810 cup and is ground for the resulting 314.325 mm OD / 49.212 mm width envelope. Selecting a sibling cup produces a different boundary plan and a different order number, so the full designation is required at purchase.In SKF catalogue PUB BU/P1 17000, LM545848 appears as SKF LM 545848/810: an open, single-row tapered roller bearing in the LM545800-series, supplied with a pressed-steel cage as standard.In SKF inch-series tables LM545848 sits at 234.848 mm bore (9.246 in) with a 314.325 mm cup OD and 49.212 mm total width — dimensions that trace back to the original Timken boundary plan for the LM545800-series family. 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.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 234.848 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 LM545800-series inch series at 234.848 mm bore (314.325×49.212 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.
• At the 608 kN rating of LM545848, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 1,800 r/min speed end and heavier preload only where moment stiffness dominates.
• The tapered contact angle creates an induced axial load under pure radial force; include it in the LM545848 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its rollers.
• The pressed-steel cage is rated for standard industrial service; sustained running above the limiting speed or with degraded lubricant wears the cage pockets — inspect the cage at every relubrication interval.
• The 608/1000 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 LM545848 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF LM 545848/810 designation when purchasing and match the execution to the mounting arrangement.