NATV12 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 NATV12 model number is decoded

envelope 12×32×15 mm: the 32 mm outside diameter is the track-running surface — a thick-walled outer ring over a 12 mm bore — and the 15 mm width sets the contact width on the mating track the catalogue lists C 9.7 kN and C0 15.9 kN for the NATV full-complement yoke-type track roller with axial guidance; the C/C0 ratio of 0.61 reflects a rolling-element pack sized for heavy static track loading, and the 10.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 2.21 kN at 12 mm bore, equivalent to 0.81 kN of dynamic rating per millimetre — the limiting speed is 1,800 r/min and, as for HR1 track rollers, no thermal reference speed is published the 12 mm bore takes the mounting pin or shaft; across the 15 mm contact width the dynamic rating works out to 0.65 kN per millimetre of rolling-element complement mass is 72 g, or 0.15 g per mm² of the 32×15 mm track envelope — inertia that the drive must accelerate on every index of the cam the 12 mm pin bore sits in the miniature band; at 15 mm wide the NATV12 is built into compact cam drives, indexing pawls and light linkages Reading NATR/NATV: yoke rollers with inner ring and integral axial guidance; the open execution is relubricated through the inner ring or pin NATV is the full-complement yoke-type track roller: cageless needle rollers pack the 32 mm envelope for maximum C0 15.9 kN, guided axially by the outer-ring ribs Typical applications include automotive welding jig rollers, conveyor transfer and diverting stations and automatic assembly machine carriages, where the 32 mm track diameter and 9.7 kN dynamic rating match the duty. In automotive welding jig rollers the unit fits a compact 12 mm seat, and in conveyor transfer and diverting stations the 72 g mass keeps follower kinetics light. Designers also specify it for automatic assembly machine carriages, relying on the 15 mm width and the published 15.9 kN static rating. Check the mating track hardness and flatness — a soft or scalloped rail fails before the 32 mm outer ring does. 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

• Check the mating track hardness and flatness — a soft or scalloped rail fails before the 32 mm outer ring does.
• Sealed PP/2RSR units are greased for life: never add a grease nipple, and respect the lower limiting speed imposed by the rubbing lips.
• The pin or shaft is part of the bearing system: harden it for RSTO/RNA22 positions, and size its deflection because the roller cannot compensate for a bent pin.