HM262749-710 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 HM262749-710 model number is decoded

SKF HM262749 (SKF HM 262749/710) is the HM262700-series tapered roller choice for a 346.075 mm shaft — one row of tapered rollers on an asymmetric raceway inside the 488.95×95.25 mm envelope.Reading the designation: HM262749 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 HM262700-series code identifies the dimensional series. The 346.075 mm bore, 488.95 mm OD and 95.25 mm width are the metric equivalents of the inch boundary dimensions. SKF lists the plain number as the basic execution; letter suffixes such as B denote a steeper contact angle and are different order numbers. At 850 r/min reference speed the 71.4 mm-section HM262749 is governed thermally by preload and lubricant flow; grease or oil selection should be made against that value, with 1,100 r/min as the mechanical ceiling. A single HM262749 locates the shaft in one axial direction only; mount it against a second bearing in O (back-to-back) or X (face-to-face) arrangement, and set the running clearance by the mounting procedure — not by feel. Cross-section geometry: the 71.4 mm half-section ((488.95−346.075)/2) of this HM200-series unit places the roller large-end pitch diameter at roughly 417 mm, and the 95.25 mm axial width is split between cone (52 mm) and cup rib (43 mm) — a geometry that sets the contact angle and, with the 55000 g rotating cone mass, the critical speed at which cage-roller imbalance begins. Why the cup reference matters here: in the HM262700-series tables the HM 262749 cone appears against several cup options. HM262749 is the pairing with 710, and that choice — not the cone — fixes the 488.95 mm OD, the raceway track position and the 95.25 mm assembled width.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 346.075 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 HM262700-series inch series at 346.075 mm bore (488.95×95.25 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 HM262749 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its rollers.
• The tapered contact angle creates an induced axial load under pure radial force; include it in the HM262749 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 1533/3150 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 HM262749 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF HM 262749/710 designation when purchasing and match the execution to the mounting arrangement.