NUTR-30-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-30-A model number is decoded

the 62 mm outside diameter runs on the track while the 30 mm bore takes the pin or shaft; the 29 mm overall width spreads the Hertzian contact over the outer ring published ratings C 41.3 kN and C0 47.5 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.87 is typical for double-row full-complement support roller, no integral flange executions fatigue load limit Pu 5.85 kN at 30 mm bore gives a specific load of 1.38 kN per mm; the limiting speed is 2,600 r/min the 29 mm width carries the load at 1.42 kN per mm of roller complement; section height 16.0 mm between bore and track surface determines the outer-ring bending stiffness mass 470 g over a 62x29 mm envelope works out to 0.261 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty at 30 mm bore this size crosses into the range where double-row full-complement executions (NUTR/PWTR/NUKR) offer substantially higher C ratings than the single-row needle designs NUTR names a double-row full-complement cylindrical roller support roller: two roller sets carry the radial load, giving the highest C 41.3 kN of the 62 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 automotive welding jig positioners, conveyor transfer and diverting rollers and woodworking machinery feed rollers this size is commonly specified for automotive welding jig positioners and conveyor transfer and diverting rollers, where the 62 mm track diameter and 30 mm bore fit standard cam and rail geometries in woodworking machinery feed rollers the 62 mm outer ring provides the rolling contact while the inner ring bore simplifies mounting; the 470 g mass is low enough for rapid indexing cycles the outer ring has no integral flange between the two roller rows — axial guidance depends entirely on the pressed-on flange rings, which can shift under heavy side load the double-row full complement is sensitive to misalignment; a bent shaft or angled track creates uneven load between the rows and early spalling

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the double-row full complement is sensitive to misalignment; a bent shaft or angled track creates uneven load between the rows and early spalling
• the outer ring has no integral flange between the two roller rows — axial guidance depends entirely on the pressed-on flange rings, which can shift under heavy side load
• relubrication is difficult because the roller rows are packed; follow the greasing interval strictly