NUTR-35-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-35-A model number is decoded

the 72 mm outside diameter runs on the track while the 35 mm bore takes the pin or shaft; the 29 mm overall width spreads the Hertzian contact over the outer ring published ratings C 45.7 kN and C0 57 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.80 is typical for double-row full-complement support roller, no integral flange executions fatigue load limit Pu 6.95 kN at 35 mm bore gives a specific load of 1.31 kN per mm; the limiting speed is 2,000 r/min the 29 mm width carries the load at 1.58 kN per mm of roller complement; section height 18.5 mm between bore and track surface determines the outer-ring bending stiffness mass 630 g over a 72x29 mm envelope works out to 0.302 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty at 35 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 is the heavy-duty support roller: two full rows of cylindrical rollers without a cage give the maximum dynamic capacity for the 72 mm envelope, but the outer ring relies entirely on the pressed-on flanges for axial location 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 cam mechanisms and indexing drives, material handling lift and lower tracks and sheet-metal forming press feeds this size is commonly specified for cam mechanisms and indexing drives and material handling lift and lower tracks, where the 72 mm track diameter and 35 mm bore fit standard cam and rail geometries in sheet-metal forming press feeds the 72 mm outer ring provides the rolling contact while the inner ring bore simplifies mounting; the 630 g mass is low enough for rapid indexing cycles the double-row full complement is sensitive to misalignment; a bent shaft or angled track creates uneven load between the rows and early spalling relubrication is difficult because the roller rows are packed; follow the greasing interval strictly

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the heavy section and full complement make this the stiffest support roller — any shaft deflection directly increases edge stress
• 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 double-row construction is the widest in the support roller range; verify the track channel width accommodates the full B dimension