LM48548-510 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 LM48548-510 model number is decoded

Mounting practice for LM48548: the rotating cone takes the interference fit (k5 on a 34.925 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 250 g catalogue mass reflects through-hardened bearing steel (density ~7.85 g/cm³) machined to the LM400 ISO envelope, with the pressed-steel cage contributing roughly 8 g of the total; the 34.925 mm bore is ground to IT5 roundness and the 65.088 mm OD to IT5 cylindricity, and the 18.034 mm width tolerance keeps the pair-setting scatter within the ISO preload class. Cone-and-cup identity in LM48548: the leading LM 48548 reference identifies the inner ring, rollers and cage; the trailing 510 reference identifies the outer ring. The LM48500-series series lists alternative cups for the same cone, each producing a different 65.088 mm OD or 18.034 mm width — hence a different SKU even though the bore stays at 34.925 mm.Ordering number SKF LM 48548/510 in SKF catalogue PUB BU/P1 17000 denotes a single-row tapered roller bearing for a 34.925 mm shaft, inch series, with an open pressed-steel-cage execution and one-direction axial capacity.Reading the designation: LM48548 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 LM48500-series code identifies the dimensional series. The 34.925 mm bore, 65.088 mm OD and 18.034 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. At 8,500 r/min reference speed the 15.1 mm-section LM48548 is governed thermally by preload and lubricant flow; grease or oil selection should be made against that value, with 10,000 r/min as the mechanical ceiling.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• On this 34.925 mm bore, interference and temperature rise consume clearance inside a preloaded pair; calculate the residual clearance after mounting and at operating temperature — an over-tight LM48548 pair heats, loses setting control and smears the roller-rib contact.
• The LM48500-series inch series at 34.925 mm bore (65.088×18.034 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.
• A single LM48548 cannot locate the shaft axially in both directions; mounting it singly on a reversing-thrust shaft leaves one direction uncontrolled — always use an O or X matched pair for bidirectional location.
• At the 58 kN rating of LM48548, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 10,000 r/min speed end and heavier preload only where moment stiffness dominates.
• 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 58/57 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 LM48548 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF LM 48548/510 designation when purchasing and match the execution to the mounting arrangement.