NATR-30 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 NATR-30 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 22.9 kN and C0 37.5 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.61 is typical for support roller with flange rings, with inner ring executions fatigue load limit Pu 4.55 kN at 30 mm bore gives a specific load of 0.76 kN per mm; the limiting speed is 1,800 r/min the 29 mm width carries the load at 0.79 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 low-speed cam duty the 30 mm bore places this in the medium band, where cylindrical-roller full-complement designs become available for heavier radial loads reading NATR: needle roller support roller with integral flange rings; the 62 mm outer ring runs on the track while the flanges keep the roller centred without separate thrust washers 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 62 mm track diameter and 30 mm bore fit standard cam and rail geometries in material handling lift and lower tracks 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 pressed-on flange rings are not designed for continuous axial load — side thrust from a skewed track will eventually dislodge them the flanges reduce the available track width by their own thickness; check the cam channel width against the B dimension, not just the outer ring width

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the flange rings are a press fit on the inner ring; excessive axial preload during mounting can shift them and alter the internal clearance
• the pressed-on flange rings are not designed for continuous axial load — side thrust from a skewed track will eventually dislodge them
• do not use the flange faces as thrust surfaces for external components — the pressed joint is designed for guidance, not for transmitting axial force