NUKRE-47-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-47-A model number is decoded

the 47 mm outside diameter runs on the track while the 24 mm stud shank takes the pin or shaft; the 66 mm overall width spreads the Hertzian contact over the outer ring published ratings C 28.6 kN and C0 33.5 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.85 is typical for full-complement cylindrical-roller cam follower with eccentric collar executions fatigue load limit Pu 3.9 kN at 24 mm stud gives a specific load of 1.19 kN per mm; the limiting speed is 3,800 r/min the 66 mm width carries the load at 0.43 kN per mm of roller complement; section height 11.5 mm between stud and track surface determines the outer-ring bending stiffness mass 400 g over a 47x66 mm envelope works out to 0.129 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty at 24 mm stud this size balances load capacity and envelope compactness — a frequent pick for packaging machines and printing press linkages NUKR is the heavy-duty stud-type track roller: two full rows of cylindrical rollers without cage give the highest dynamic capacity of the cam follower range the NUKRE designation adds on-machine adjustability to the heavy twin-row cylindrical roller cam follower — the eccentric collar compensates for track wear and mounting tolerances typical applications include food processing line track rollers, printing press roller followers and automotive welding jig positioners this size is commonly specified for food processing line track rollers and printing press roller followers, where the 47 mm track diameter and 24 mm stud fit standard cam and rail geometries in automotive welding jig positioners the 47 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 400 g mass is low enough for rapid indexing cycles mounting on a worn or undersized pin reduces the effective clearance and can preload the roller hot the narrow width concentrates the Hertzian contact stress; verify the track material hardness is sufficient for the calculated contact pressure

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the open design has no integral sealing; in dusty environments contamination enters directly between the needle rollers and the raceway
• mounting on a worn or undersized pin reduces the effective clearance and can preload the roller hot
• the narrow width concentrates the Hertzian contact stress; verify the track material hardness is sufficient for the calculated contact pressure