KRV-72-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 KRV-72-PPA model number is decoded

the 72 mm outside diameter runs on the track while the 24 mm stud shank takes the pin or shaft; the 80 mm overall width spreads the Hertzian contact over the outer ring published ratings C 33 kN and C0 80 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.41 is typical for full-complement cam follower with needle rollers executions fatigue load limit Pu 9.8 kN at 24 mm stud gives a specific load of 1.38 kN per mm; the limiting speed is 1,700 r/min the 80 mm width carries the load at 0.41 kN per mm of roller complement; section height 24.0 mm between stud and track surface determines the outer-ring bending stiffness mass 1050 g over a 72x80 mm envelope works out to 0.182 g per mm² of projected area — a useful figure when sizing the drive inertia for low-speed cam duty the 24 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 KRV denotes the full-complement cam follower: no cage, the maximum number of needle rollers for the 72 mm envelope, raising C0 to 80 kN at the cost of the 1700 r/min speed limit the PPA suffix specifies a crowned (radius) outer-ring running surface instead of the standard cylindrical profile — the crown distributes edge stress when the track is not perfectly aligned typical applications include paper mill web guide rollers, automatic assembly machine linkages and food processing line track rollers this size is commonly specified for paper mill web guide rollers and automatic assembly machine linkages, where the 72 mm track diameter and 24 mm stud fit standard cam and rail geometries in food processing line track rollers the 72 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 1050 g mass is low enough for rapid indexing cycles the full complement is sensitive to contamination — any particle that enters the raceway can jam the roller pack and score the track the heavy roller pack and full complement make this the highest-inertia cam follower; verify the drive can accelerate the mass at the required cam rate

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the heavy roller pack and full complement make this the highest-inertia cam follower; verify the drive can accelerate the mass at the required cam rate
• the full complement is sensitive to contamination — any particle that enters the raceway can jam the roller pack and score the track
• full-complement needle rollers have no cage to separate them — momentary unloading can let rollers skew and jam in the track