NATR8-PP bearing: complete specifications & equivalents

Specification table

Source: catalog reference (HR1 2026-09-25) · extracted 2026-09-30

Parameters extracted from the official FAG Rolling Bearings catalogue (HR1 2026-09-25); FAG® is a trademark of Schaeffler Technologies AG & Co. KG, used here for identification only — mpnbase is not an authorized FAG/Schaeffler distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at schaeffler.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 NATR8-PP model number is decoded

envelope 8×24×15 mm: the 24 mm outside diameter is the track-running surface — a thick-walled outer ring over a 8 mm bore — and the 15 mm width sets the contact width on the mating track the catalogue lists C 5.5 kN and C0 6.7 kN for the NATR yoke-type track roller with cage and axial guidance; the C/C0 ratio of 0.82 reflects a rolling-element pack sized for heavy static track loading, and the 8.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 0.94 kN at 8 mm bore, equivalent to 0.69 kN of dynamic rating per millimetre — the limiting speed is 7,500 r/min and, as for HR1 track rollers, no thermal reference speed is published the 8 mm bore takes the mounting pin or shaft; across the 15 mm contact width the dynamic rating works out to 0.37 kN per millimetre of rolling-element complement mass is 38 g, or 0.11 g per mm² of the 24×15 mm track envelope — inertia that the drive must accelerate on every index of the cam the 8 mm pin bore sits in the miniature band; at 15 mm wide the NATR8-PP is built into compact cam drives, indexing pawls and light linkages Reading NATR/NATV: yoke rollers with inner ring and integral axial guidance; the PP suffix adds lip seals on both sides and a life-long grease fill The outer-ring ribs give axial guidance, so the roller tolerates light thrust from skewed tracks without external flanges; the 15 mm width covers most standard cam geometries The -PP suffix fits contact lip seals on both sides, retaining the factory grease and excluding water and dust; seal friction is reflected in the 7,500 r/min limiting speed. Typical applications include cam drives and indexing tables, printing press sheet-transfer grippers and woodworking machine feed tracks, where the 24 mm track diameter and 5.5 kN dynamic rating match the duty. In cam drives and indexing tables the unit fits a compact 8 mm seat, and in printing press sheet-transfer grippers the 38 g mass keeps follower kinetics light. Designers also specify it for woodworking machine feed tracks, relying on the 15 mm width and the published 6.7 kN static rating. Flangeless STO/RSTO/RNA22/NA22 rollers need external axial location; circlips or shoulders must control end float or the roller walks off the track. Sealed PP/2RSR units are greased for life: never add a grease nipple, and respect the lower limiting speed imposed by the rubbing lips.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Flangeless STO/RSTO/RNA22/NA22 rollers need external axial location; circlips or shoulders must control end float or the roller walks off the track.
• Sealed PP/2RSR units are greased for life: never add a grease nipple, and respect the lower limiting speed imposed by the rubbing lips.
• Check the mating track hardness and flatness — a soft or scalloped rail fails before the 24 mm outer ring does.