KRV80-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 KRV80-PP model number is decoded

envelope 30×80×100 mm: the 80 mm outside diameter is the track-running surface — a thick-walled outer ring over a 30 mm stud — and the 100 mm overall stud-and-roller length sets the required bracket clearance the catalogue lists C 48.5 kN and C0 118 kN for the KRV full-complement stud-type cam follower; the C/C0 ratio of 0.41 reflects a rolling-element pack sized for heavy static track loading, and the 25.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 17.6 kN at 30 mm stud, equivalent to 1.62 kN of dynamic rating per millimetre — the limiting speed is 850 r/min and, as for HR1 track rollers, no thermal reference speed is published the 30 mm threaded stud clamps directly into the machine bracket; over the roller running width the dynamic rating works out to 0.48 kN per millimetre of rolling-element complement within the 100 mm overall stud length mass is 1.636 kg (1636 g), or 0.20 g per mm² of the 80×100 mm track envelope — inertia that the drive must accelerate on every index of the cam the 30 mm stud shank falls in the small band, the workhorse size for gearbox planetary positions, hydraulic pumps and general cam and linkage duty The full complement raises static capacity but lowers the speed ceiling and generates more friction torque — slow, heavily loaded cams are its duty The standard stud axis fixes the roller centre; shimming the bracket faces is the way to adjust track preload -PP means sealed both sides with elastomer lips — the roller is greased for life and needs no relubrication fitting in the 100 mm width. Typical applications include conveyor transfer and diverting stations, robotic arm linear axes and automotive welding jig rollers, where the 80 mm track diameter and 48.5 kN dynamic rating match the duty. In conveyor transfer and diverting stations the threaded stud bolts directly to the frame, and in robotic arm linear axes the 1.636 kg mass is part of the rotor inertia calculation. Designers also specify it for automotive welding jig rollers, relying on the 100 mm stud length and the published 118 kN static rating. The stud must be fully supported and the nut torqued to the catalogue value; a loose follower wears the bracket hole oval and loosens further. Sealed PP/2RS followers are life-lubricated; open KR/NUKR executions need the stud greaseway serviced on a fixed interval.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The stud must be fully supported and the nut torqued to the catalogue value; a loose follower wears the bracket hole oval and loosens further.
• Sealed PP/2RS followers are life-lubricated; open KR/NUKR executions need the stud greaseway serviced on a fixed interval.
• Use a washer under the nut and a flat square bracket face; the stud head alone cannot spread the clamp load of the heavy double-row executions.