KRE19-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 KRE19-PP model number is decoded

envelope 8×19×32 mm: the 19 mm outside diameter is the track-running surface — a thick-walled outer ring over a 8 mm stud — and the 32 mm overall stud-and-roller length sets the required bracket clearance the catalogue lists C 3.5 kN and C0 4.05 kN for the KRE stud-type cam follower with eccentric locking collar; the C/C0 ratio of 0.86 reflects a rolling-element pack sized for heavy static track loading, and the 5.5 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 0.55 kN at 8 mm stud, equivalent to 0.44 kN of dynamic rating per millimetre — the limiting speed is 11,000 r/min and, as for HR1 track rollers, no thermal reference speed is published the 8 mm threaded stud clamps directly into the machine bracket; over the roller running width the dynamic rating works out to 0.11 kN per millimetre of rolling-element complement within the 32 mm overall stud length mass is 32 g, or 0.05 g per mm² of the 19×32 mm track envelope — inertia that the drive must accelerate on every index of the cam 8 mm stud shank and only 32 g: the smallest sizes demand accurate shaft geometry, because the 5.5 mm section leaves no tolerance for a soft or tapered seat C 3.5 kN, C0 4.05 kN and Cur 0.55 kN are the cam-contact ratings; the limiting speed is 11,000 r/min with no reference speed published Reading KR/KRV/KRE: stud-type needle cam followers with PP lip seals on both sides and a 32 mm overall stud length 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 11,000 r/min limiting speed. Typical applications include robotic arm linear axes, agricultural and textile cam followers and conveyor transfer and diverting stations, where the 19 mm track diameter and 3.5 kN dynamic rating match the duty. In robotic arm linear axes the threaded stud bolts directly to the frame, and in agricultural and textile cam followers the 32 g mass keeps follower kinetics light. Designers also specify it for conveyor transfer and diverting stations, relying on the 32 mm stud length and the published 4.05 kN static rating. Sealed PP/2RS followers are life-lubricated; open KR/NUKR executions need the stud greaseway serviced on a fixed interval. On eccentric KRE/NUKRE/PWKRE units, re-torque after setting the collar — the adjustment changes the effective stud engagement.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Sealed PP/2RS followers are life-lubricated; open KR/NUKR executions need the stud greaseway serviced on a fixed interval.
• On eccentric KRE/NUKRE/PWKRE units, re-torque after setting the collar — the adjustment changes the effective stud engagement.
• The eccentric collar throw is small (typically around 1 mm); it removes clearance, it cannot repair a grossly misplaced bracket.