RSTO6-TV 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 RSTO6-TV model number is decoded

envelope 10×19×9.8 mm: the 19 mm outside diameter is the track-running surface — a thick-walled outer ring over a 10 mm bore — and the 9.8 mm width sets the contact width on the mating track the catalogue lists C 3.75 kN and C0 4.6 kN for the RSTO yoke-type track roller without inner ring, without axial guidance; the C/C0 ratio of 0.82 reflects a rolling-element pack sized for heavy static track loading, and the 4.5 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 0.66 kN at 10 mm bore, equivalent to 0.38 kN of dynamic rating per millimetre — the limiting speed is 10,000 r/min and, as for HR1 track rollers, no thermal reference speed is published the 10 mm bore takes the mounting pin or shaft; across the 9.8 mm contact width the dynamic rating works out to 0.38 kN per millimetre of rolling-element complement mass is 12.5 g, or 0.07 g per mm² of the 19×9.8 mm track envelope — inertia that the drive must accelerate on every index of the cam 10 mm pin bore and only 12.5 g: the smallest sizes demand accurate shaft geometry, because the 4.5 mm section leaves no tolerance for a soft or tapered seat With C 3.75 kN and C0 4.6 kN the roller accepts track loads directly; the 10,000 r/min limiting speed is the only speed figure HR1 publishes for track rollers The thick-walled outer ring is the running element — 19 mm outside diameter over a 10 mm pin seat — and is made to roll flat on a mating track rather than inside a housing Reading -TV: an injection-moulded polyamide cage guides the rolling elements — the lightweight choice that keeps the mass at 12.5 g in the 19 mm envelope. Typical applications include agricultural and textile cam followers, packaging machine timing mechanisms and robotic arm linear axes, where the 19 mm track diameter and 3.75 kN dynamic rating match the duty. In agricultural and textile cam followers the unit fits a compact 10 mm seat, and in packaging machine timing mechanisms the 12.5 g mass keeps follower kinetics light. Designers also specify it for robotic arm linear axes, relying on the 9.8 mm width and the published 4.6 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 19 mm outer ring does.