M88043-010 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 M88043-010 model number is decoded

Load system: the 67.1 kN basic dynamic rating C and 69.5 kN static rating C0 give a C0/C balance of 1.04, and dividing C by the 30.162 mm bore yields 2.22 kN per millimetre of journal — a density metric that compares across families; the 7.8 kN fatigue limit Pu is the floor beneath which the adjusted-life calculation drops below acceptable L10 hours for a 30.162 mm shaft carrying variable duty. The cup reference 010 is structural, not a suffix: it identifies the outer ring that, combined with the M 88043 cone, produces the 30.162/68.262/22.225 mm envelope catalogue-listed as M88043. Quote the cup number in full when ordering — the M88000-series tables contain other cups that fit the same cone but change the bearing.Ordering number SKF M 88043/010 in SKF catalogue PUB BU/P1 17000 denotes a single-row tapered roller bearing for a 30.162 mm shaft, inch series, with an open pressed-steel-cage execution and one-direction axial capacity.The M88000-series series assigns 30.162 mm bore, 68.262 mm OD and 22.225 mm width to M88043; 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. In SKF suffix language a bare M88043 is the standard execution; B marks a larger contact angle and Q or J2 mark clearance/cage variants, all quoted separately. The 7.8 kN Pu figure feeds the adjusted-life equation at contaminated or partial-film conditions, and the 1.04 C0/C balance shows this execution is tuned to thrust-heavy combined loads rather than pure radial running. Specify pairs rather than single units wherever thrust reverses: the tapered contact of M88043 generates an induced axial load under radial force, and an unpaired bearing on a reversing shaft will run slack and fret its seat.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• On this 30.162 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 M88043 pair heats, loses setting control and smears the roller-rib contact.
• The M88000-series inch series at 30.162 mm bore (68.262×22.225 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 M88043 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.
• Do not mix brands or executions inside one M88043 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.
• 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 67.1/69.5 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 M88043 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF M 88043/010 designation when purchasing and match the execution to the mounting arrangement.