NUKRE-72-A bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 15 support rollers / ch. 16 cam followers) · extracted 2026-09-30

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 15 support rollers / ch. 16 cam followers); 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 NUKRE-72-A model number is decoded

the 72 mm outside diameter runs on the track while the 28 mm stud shank takes the pin or shaft; the 80 mm overall width spreads the Hertzian contact over the outer ring published ratings C 45.7 kN and C0 58.5 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.78 is typical for full-complement cylindrical-roller cam follower with eccentric collar executions fatigue load limit Pu 7.1 kN at 28 mm stud gives a specific load of 1.63 kN per mm; the limiting speed is 2,000 r/min the 80 mm width carries the load at 0.57 kN per mm of roller complement; section height 22.0 mm between stud and track surface determines the outer-ring bending stiffness mass 1050 g over a 72x80 mm envelope works out to 0.182 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty the 28 mm stud diameter places this in the medium band, where cylindrical-roller full-complement designs become available for heavier radial loads the NUKR designation marks the twin-row cylindrical roller cam follower — the catalogue choice for the heaviest radial loads and shock-dominated cam duty NUKRE provides the same heavy-section twin-row capacity as NUKR with the added benefit of radial adjustment via the eccentric collar on the stud typical applications include textile machine cam drives, agricultural equipment cam followers and packaging machine timing cams this size is commonly specified for textile machine cam drives and agricultural equipment cam followers, where the 72 mm track diameter and 28 mm stud fit standard cam and rail geometries in packaging machine timing cams the 72 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 1050 g mass is low enough for rapid indexing cycles without flange rings the roller needs lateral guidance from the housing shoulders — running without side support lets the roller walk off the track the open design has no integral sealing; in dusty environments contamination enters directly between the needle rollers and the raceway

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the narrow width concentrates the Hertzian contact stress; verify the track material hardness is sufficient for the calculated contact pressure
• without flange rings the roller needs lateral guidance from the housing shoulders — running without side support lets the roller walk off the track
• without integral flanges, axial float must be controlled by external washers or circlips — free axial movement causes edge loading on the outer ring