NUTR-2052-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 NUTR-2052-A model number is decoded

the 52 mm outside diameter runs on the track while the 20 mm bore takes the pin or shaft; the 25 mm overall width spreads the Hertzian contact over the outer ring published ratings C 31.9 kN and C0 39 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.82 is typical for double-row full-complement support roller, no integral flange executions fatigue load limit Pu 4.55 kN at 20 mm bore gives a specific load of 1.59 kN per mm; the limiting speed is 3,800 r/min the 25 mm width carries the load at 1.28 kN per mm of roller complement; section height 16.0 mm between bore and track surface determines the outer-ring bending stiffness mass 320 g over a 52x25 mm envelope works out to 0.246 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty the 20 mm bore falls in the small-size band, the most common choice for general-purpose cam followers and light conveyor transfer rollers NUTR names a double-row full-complement cylindrical roller support roller: two roller sets carry the radial load, giving the highest C 31.9 kN of the 52 mm sizes, but there is no integral flange between the rows the A suffix denotes the improved design: optimised internal geometry and surface finish raise the limiting speed and reduce friction compared with the earlier execution typical applications include woodworking machinery feed rollers, cam mechanisms and indexing drives and material handling lift and lower tracks this size is commonly specified for woodworking machinery feed rollers and cam mechanisms and indexing drives, where the 52 mm track diameter and 20 mm bore fit standard cam and rail geometries in material handling lift and lower tracks the 52 mm outer ring provides the rolling contact while the inner ring bore simplifies mounting; the 320 g mass is low enough for rapid indexing cycles the heavy section and full complement make this the stiffest support roller — any shaft deflection directly increases edge stress the double-row construction is the widest in the support roller range; verify the track channel width accommodates the full B dimension

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the two roller rows share the outer ring bending load; a misaligned track concentrates the load on one row and halves the life
• the heavy section and full complement make this the stiffest support roller — any shaft deflection directly increases edge stress
• the double-row construction is the widest in the support roller range; verify the track channel width accommodates the full B dimension