HH224349-310 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 HH224349-310 model number is decoded

With C 619 kN and C0 830 kN, the HH224349 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 3,000 r/min. Fit selection follows the rotating ring — interference on a rotating cone — and two HH224349 units are required to take reversing thrust; keep the induced axial load inside the rated capacity when calculating the pair. Cross-section geometry: the 48.9 mm half-section ((212.725−114.975)/2) of this HH200-series unit places the roller large-end pitch diameter at roughly 163 mm, and the 66.675 mm axial width is split between cone (37 mm) and cup rib (30 mm) — a geometry that sets the contact angle and, with the 10000 g rotating cone mass, the critical speed at which cage-roller imbalance begins. Cone versus cup responsibility in HH224349: the HH 224349 cone carries the 114.975 mm bore, rollers and pressed-steel cage; the 310 cup carries the 212.725 mm OD raceway, the roller-seating rib and the outer press-fit surface. The two references are not interchangeable halves.HH224349 is a single-row tapered roller bearing in the HH224300-series inch series: a separable cone-and-cup design for combined radial and one-direction axial load, listed by SKF in SKF catalogue PUB BU/P1 17000.The HH224300-series series assigns 114.975 mm bore, 212.725 mm OD and 66.675 mm width to HH224349; 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. SKF lists the plain number as the basic execution; letter suffixes such as B denote a steeper contact angle and are different order numbers.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 114.975 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 HH224300-series inch series at 114.975 mm bore (212.725×66.675 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.
• Setting is a design value, not an assembly feel: excessive preload in the HH224349 pair raises operating temperature and can trigger thermal runaway, while too little lets the rollers skid and smear the raceway under light load.
• When the outer ring rotates, reverse the fit logic and provide cup location; the tapered contact of HH224349 pushes the rings apart under load, so a non-located cup walks its seat even when the shaft is fixed.
• 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 212.725 mm cup race release as noise within the first running hours.
• The 619/830 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 HH224349 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF HH 224349/310 designation when purchasing and match the execution to the mounting arrangement.