KRE-26-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-26-PPA model number is decoded

the 26 mm outside diameter runs on the track while the 13 mm stud shank takes the pin or shaft; the 36 mm overall width spreads the Hertzian contact over the outer ring published ratings C 4.84 kN and C0 6 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.81 is typical for cam follower with eccentric collar executions fatigue load limit Pu 0.655 kN at 13 mm stud gives a specific load of 0.37 kN per mm; the limiting speed is 5,300 r/min the 36 mm width carries the load at 0.13 kN per mm of roller complement; section height 6.5 mm between stud and track surface determines the outer-ring bending stiffness mass 62 g over a 26x36 mm envelope works out to 0.066 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-high-speed cam duty the 13 mm stud shank puts this in the small-to-medium transition where the roller complement is still needle-type but the outer ring is thick enough for moderate shock loads the KRE prefix marks the adjustable cam follower — the eccentric collar on the stud gives a quick, reversible way to set preload or correct alignment during assembly the PPA variant has a crowned track surface: the 26 mm OD is finished with a large-radius crown that compensates for minor track misalignment and reduces edge stress concentration typical applications include linear guide and track systems, robotic arm track guidance and paper mill web guide rollers this size is commonly specified for linear guide and track systems and robotic arm track guidance, where the 26 mm track diameter and 13 mm stud fit standard cam and rail geometries in paper mill web guide rollers the 26 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 62 g mass is low enough for rapid indexing cycles do not use the eccentric collar to compensate for gross track misalignment; the adjustment range is typically only 0.5–1.0 mm mark the collar position before disassembly; reassembly without the original setting loses the preload calibration

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• mark the collar position before disassembly; reassembly without the original setting loses the preload calibration
• do not use the eccentric collar to compensate for gross track misalignment; the adjustment range is typically only 0.5–1.0 mm
• the eccentric collar is a friction fit on the stud — do not hammer it; use the correct spanner to rotate it to the preload setting