11163-11300 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 11163-11300 model number is decoded

Selection arithmetic: the C0/C ratio is about 1.01 (static 56 kN against dynamic 55.7 kN), typical of a tapered roller sized for axial capacity, and the 6.1 kN fatigue load limit Pu is the equivalent-load floor used in the life calculation. Specify pairs rather than single units wherever thrust reverses: the tapered contact of 11163 generates an induced axial load under radial force, and an unpaired bearing on a reversing shaft will run slack and fret its seat. Operating context for the 41.275 mm bore: a shaft of this diameter in the medium-bore band typically runs between 33020 and 49530 r/min in real machinery, and the 76.2 mm outside diameter places the housing shoulder at 84 mm outer abutment; the 18.009 mm width and 340 g mass together set the shaft critical speed and the housing resonance check for this 11100-series envelope. Inch tapered bearings are matched sets, not mix-and-match components: 11163 pairs the 11163 cone with the 11300 cup under the 11000-series boundary plan, and although the same cone shows up against other cups in the catalogue, each pairing yields a distinct assembled width and a distinct rating row.Ordering number SKF 11163/11300 in SKF catalogue PUB BU/P1 17000 denotes a single-row tapered roller bearing for a 41.275 mm shaft, inch series, with an open pressed-steel-cage execution and one-direction axial capacity.The code breaks down as cone/cup: the numbers before and after the slash identify the inner and outer ring sets, and the series prefix (11000-series) ties the pair to a specific boundary plan. Dimensions 41.275×76.2×18.009 mm are the converted metric envelope. 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

• 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 11163 pair heats, loses setting control and smears the roller-rib contact.
• The 11000-series inch series at 41.275 mm bore (76.2×18.009 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 11163 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its rollers.
• Do not mix brands or executions inside one 11163 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.
• Shaft and housing fillets must clear the bearing chamfer so the 18.009 mm-wide cup seats square; use an undercut or withdrawal groove rather than an oversized radius that locks on the ring face.
• The 55.7/56 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 11163 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 11163/11300 designation when purchasing and match the execution to the mounting arrangement.