NATV6 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 NATV6 model number is decoded

envelope 6×19×12 mm: the 19 mm outside diameter is the track-running surface — a thick-walled outer ring over a 6 mm bore — and the 12 mm width sets the contact width on the mating track the catalogue lists C 5.4 kN and C0 8.1 kN for the NATV full-complement yoke-type track roller with axial guidance; the C/C0 ratio of 0.67 reflects a rolling-element pack sized for heavy static track loading, and the 6.5 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 1.19 kN at 6 mm bore, equivalent to 0.90 kN of dynamic rating per millimetre — the limiting speed is 3,100 r/min and, as for HR1 track rollers, no thermal reference speed is published the 6 mm bore takes the mounting pin or shaft; across the 12 mm contact width the dynamic rating works out to 0.45 kN per millimetre of rolling-element complement mass is 21 g, or 0.09 g per mm² of the 19×12 mm track envelope — inertia that the drive must accelerate on every index of the cam 6 mm pin bore and only 21 g: the smallest sizes demand accurate shaft geometry, because the 6.5 mm section leaves no tolerance for a soft or tapered seat NATV is the full-complement yoke-type track roller: cageless needle rollers pack the 19 mm envelope for maximum C0 8.1 kN, guided axially by the outer-ring ribs The cageless rollers can brinell on very short oscillating strokes — the motion must rotate the full pack, not just rock it Typical applications include linear rail and profile track guidance, automatic assembly machine carriages and glass and ceramic line conveyors, where the 19 mm track diameter and 5.4 kN dynamic rating match the duty. In linear rail and profile track guidance the unit fits a compact 6 mm seat, and in automatic assembly machine carriages the 21 g mass keeps follower kinetics light. Designers also specify it for glass and ceramic line conveyors, relying on the 12 mm width and the published 8.1 kN static rating. 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.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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.
• Yoke lugs must support the pin on both sides over its full length — single-sided support turns the pin into a cantilever beam.