M802048-011 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 M802048-011 model number is decoded

SKF lists the plain number as the basic execution; letter suffixes such as B denote a steeper contact angle and are different order numbers. With C 91.2 kN and C0 91.5 kN, the M802048 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 8,000 r/min. Because the contact line is tapered, one M802048 reacts thrust in a single direction; bidirectional shafts need an O or X pair, and a rotating cone on a 41.275 mm shaft typically takes a k5 seat with an H7 housing bore. Load system: the 91.2 kN basic dynamic rating C and 91.5 kN static rating C0 give a C0/C balance of 1.00, and dividing C by the 41.275 mm bore yields 2.21 kN per millimetre of journal — a density metric that compares across families; the 10.6 kN fatigue limit Pu is the floor beneath which the adjusted-life calculation drops below acceptable L10 hours for a 41.275 mm shaft carrying variable duty. The cup reference 011 is structural, not a suffix: it identifies the outer ring that, combined with the M 802048 cone, produces the 41.275/82.55/26.543 mm envelope catalogue-listed as M802048. Quote the cup number in full when ordering — the M802000-series tables contain other cups that fit the same cone but change the bearing.SKF M802048 (SKF M 802048/011) is the M802000-series tapered roller choice for a 41.275 mm shaft — one row of tapered rollers on an asymmetric raceway inside the 82.55×26.543 mm envelope.The M802000-series series assigns 41.275 mm bore, 82.55 mm OD and 26.543 mm width to M802048; the cone and cup references are not interchangeable with other inch-series pairs even when the bore matches, because the cup profile and rib geometry are series-specific.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• On this 41.275 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 M802048 pair heats, loses setting control and smears the roller-rib contact.
• The M802000-series inch series at 41.275 mm bore (82.55×26.543 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.
• When the outer ring rotates, reverse the fit logic and provide cup location; the tapered contact of M802048 pushes the rings apart under load, so a non-located cup walks its seat even when the shaft is fixed.
• Do not mix brands or executions inside one M802048 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.
• 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 82.55 mm cup race release as noise within the first running hours.
• The 91.2/91.5 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 M802048 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF M 802048/011 designation when purchasing and match the execution to the mounting arrangement.