M86647-610 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 M86647-610 model number is decoded

The M86600-series series assigns 28.575 mm bore, 64.292 mm OD and 21.433 mm width to M86647; 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. 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. With C 60.4 kN and C0 61 kN, the M86647 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 11,000 r/min. A single M86647 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. Dimensional interchange map: within the M8600 series at 28.575 mm bore, the 64.292 mm OD and 21.433 mm width are fixed by the ISO 355 plan, so any same-code bearing from another brand shares the mounting envelope; the 17.9 mm section height distinguishes this family from a 302 or 322 of the same bore, and the 350 g mass is the minimum—sealed or snap-ring executions add rotating weight above that catalogue baseline. Cone versus cup responsibility in M86647: the M 86647 cone carries the 28.575 mm bore, rollers and pressed-steel cage; the 610 cup carries the 64.292 mm OD raceway, the roller-seating rib and the outer press-fit surface. The two references are not interchangeable halves.SKF M 86647/610 belongs to the SKF single-row tapered roller range — the 28.575 mm bore entry in the inch M86600-series, dimensioned 64.292 mm OD and 21.433 mm wide.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• On this 28.575 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 M86647 pair heats, loses setting control and smears the roller-rib contact.
• The M86600-series inch series at 28.575 mm bore (64.292×21.433 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 M86647 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its rollers.
• O (back-to-back) pairs are stiffer against moments, X (face-to-face) pairs tolerate misalignment and thermal growth better; choosing the arrangement from the 2D drawing rather than the actual shaft thermal expansion is a common M86647 mounting error.
• 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 64.292 mm cup race release as noise within the first running hours.
• The 60.4/61 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 M86647 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF M 86647/610 designation when purchasing and match the execution to the mounting arrangement.