KRE-47-PPA bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 15 support rollers / ch. 16 cam followers) · extracted 2026-09-30

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 15 support rollers / ch. 16 cam followers); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.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 KRE-47-PPA model number is decoded

the 47 mm outside diameter runs on the track while the 24 mm stud shank takes the pin or shaft; the 66 mm overall width spreads the Hertzian contact over the outer ring published ratings C 14.7 kN and C0 24.5 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.60 is typical for cam follower with eccentric collar executions fatigue load limit Pu 2.9 kN at 24 mm stud gives a specific load of 0.61 kN per mm; the limiting speed is 3,000 r/min the 66 mm width carries the load at 0.22 kN per mm of roller complement; section height 11.5 mm between stud and track surface determines the outer-ring bending stiffness mass 400 g over a 47x66 mm envelope works out to 0.129 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty at 24 mm stud this size balances load capacity and envelope compactness — a frequent pick for packaging machines and printing press linkages reading KRE: cam follower with eccentric adjustment collar; the collar seat on the 24 mm stud is offset so a spanner turn re-centres the roller on the cam reading the PPA suffix: crowned outer ring — the track contact is barrel-shaped to tolerate angular misalignment between the roller axis and the track typical applications include agricultural equipment cam followers, packaging machine timing cams and glass processing line conveyors this size is commonly specified for agricultural equipment cam followers and packaging machine timing cams, where the 47 mm track diameter and 24 mm stud fit standard cam and rail geometries in glass processing line conveyors the 47 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 400 g mass is low enough for rapid indexing cycles after adjusting the eccentric collar, re-torque the stud nut; the collar setting changes the stud engagement length the eccentric adjustment range is limited; if the required offset exceeds the collar throw, the bracket must be re-machined

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• do not use the eccentric collar to compensate for gross track misalignment; the adjustment range is typically only 0.5–1.0 mm
• after adjusting the eccentric collar, re-torque the stud nut; the collar setting changes the stud engagement length
• mark the collar position before disassembly; reassembly without the original setting loses the preload calibration