KRE72-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 KRE72-PP model number is decoded

envelope 24×72×80 mm: the 72 mm outside diameter is the track-running surface — a thick-walled outer ring over a 24 mm stud — and the 80 mm overall stud-and-roller length sets the required bracket clearance the catalogue lists C 28 kN and C0 53 kN for the KRE stud-type cam follower with eccentric locking collar; the C/C0 ratio of 0.53 reflects a rolling-element pack sized for heavy static track loading, and the 24.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 7.3 kN at 24 mm stud, equivalent to 1.17 kN of dynamic rating per millimetre — the limiting speed is 1,900 r/min and, as for HR1 track rollers, no thermal reference speed is published the 24 mm threaded stud clamps directly into the machine bracket; over the roller running width the dynamic rating works out to 0.35 kN per millimetre of rolling-element complement within the 80 mm overall stud length mass is 1.038 kg (1038 g), or 0.18 g per mm² of the 72×80 mm track envelope — inertia that the drive must accelerate on every index of the cam at 24 mm stud shank this size balances the 72 mm outside diameter against machineability of the adjacent parts — the most frequently specified band in the HR1 range The caged pack keeps friction and inertia low — at 1038 g this is the follower for fast indexing drives and high-cycle linkages The crowned outer-ring profile is the standard form: it distributes edge stress when the cam track is not perfectly parallel, and a cylindrical-profile variant would be ordered separately -PP means sealed both sides with elastomer lips — the roller is greased for life and needs no relubrication fitting in the 80 mm width. Typical applications include printing press sheet-transfer grippers, glass and ceramic line conveyors and cam drives and indexing tables, where the 72 mm track diameter and 28 kN dynamic rating match the duty. In printing press sheet-transfer grippers the threaded stud bolts directly to the frame, and in glass and ceramic line conveyors the 1.038 kg mass is part of the rotor inertia calculation. Designers also specify it for cam drives and indexing tables, relying on the 80 mm stud length and the published 53 kN static rating. The eccentric collar throw is small (typically around 1 mm); it removes clearance, it cannot repair a grossly misplaced bracket. 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 eccentric collar throw is small (typically around 1 mm); it removes clearance, it cannot repair a grossly misplaced bracket.
• Sealed PP/2RS followers are life-lubricated; open KR/NUKR executions need the stud greaseway serviced on a fixed interval.
• Full-complement followers trade speed for static capacity — apply the lower limiting speed and expect higher drive torque than a caged KR.