NUKRE72 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (HR1 2026-09-25) · extracted 2026-09-30

Parameters extracted from the official FAG Rolling Bearings catalogue (HR1 2026-09-25); FAG® is a trademark of Schaeffler Technologies AG & Co. KG, used here for identification only — mpnbase is not an authorized FAG/Schaeffler distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at schaeffler.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 NUKRE72 model number is decoded

envelope 24×72×80 mm: the 72 mm outside diameter is the track-running surface — a thick-walled outer ring over a 24 mm stud — and the 80 mm overall stud-and-roller length sets the required bracket clearance the catalogue lists C 45 kN and C0 66 kN for the NUKRE double-row full-complement stud-type track roller with eccentric locking collar; the C/C0 ratio of 0.68 reflects a rolling-element pack sized for heavy static track loading, and the 24.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 8.9 kN at 24 mm stud, equivalent to 1.88 kN of dynamic rating per millimetre — the limiting speed is 2,600 r/min and, as for HR1 track rollers, no thermal reference speed is published the 24 mm threaded stud clamps directly into the machine bracket; over the roller running width the dynamic rating works out to 0.56 kN per millimetre of rolling-element complement within the 80 mm overall stud length mass is 1.05 kg (1050 g), or 0.18 g per mm² of the 72×80 mm track envelope — inertia that the drive must accelerate on every index of the cam the 24 mm stud shank falls in the small band, the workhorse size for gearbox planetary positions, hydraulic pumps and general cam and linkage duty Reading the designation: the trailing E marks the eccentric locking collar — turning the collar shifts the roller centre to take up clearance or preload against the track, with labyrinth-style protection at the faces NUKRE is a double-row full-complement stud-type track roller: two cylindrical roller rows run on a heavy-section threaded stud, ready to bolt straight into a bracket Typical applications include woodworking machine feed tracks, cam drives and indexing tables and packaging machine timing mechanisms, where the 72 mm track diameter and 45 kN dynamic rating match the duty. In woodworking machine feed tracks the threaded stud bolts directly to the frame, and in cam drives and indexing tables the 1.05 kg mass is part of the rotor inertia calculation. Designers also specify it for packaging machine timing mechanisms, relying on the 80 mm stud length and the published 66 kN static rating. Use a washer under the nut and a flat square bracket face; the stud head alone cannot spread the clamp load of the heavy double-row executions. The eccentric collar throw is small (typically around 1 mm); it removes clearance, it cannot repair a grossly misplaced bracket.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Use a washer under the nut and a flat square bracket face; the stud head alone cannot spread the clamp load of the heavy double-row executions.
• The eccentric collar throw is small (typically around 1 mm); it removes clearance, it cannot repair a grossly misplaced bracket.
• The stud must be fully supported and the nut torqued to the catalogue value; a loose follower wears the bracket hole oval and loosens further.