KRV-90-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-90-PPA model number is decoded

the 90 mm outside diameter runs on the track while the 30 mm stud shank takes the pin or shaft; the 100 mm overall width spreads the Hertzian contact over the outer ring published ratings C 47.3 kN and C0 122 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.39 is typical for full-complement cam follower with needle rollers executions fatigue load limit Pu 15 kN at 30 mm stud gives a specific load of 1.58 kN per mm; the limiting speed is 1,400 r/min the 100 mm width carries the load at 0.47 kN per mm of roller complement; section height 30.0 mm between stud and track surface determines the outer-ring bending stiffness mass 2000 g over a 90x100 mm envelope works out to 0.222 g per mm² of projected area — a useful figure when sizing the drive inertia for low-speed cam duty the 30 mm stud diameter places this in the medium band, where cylindrical-roller full-complement designs become available for heavier radial loads the KRV execution is the heavy-static counterpart of KR: full complement of needle rollers for maximum load capacity in slow or oscillating cam tracks the PPA variant has a crowned track surface: the 90 mm OD is finished with a large-radius crown that compensates for minor track misalignment and reduces edge stress concentration typical applications include automotive welding jig positioners, conveyor transfer and diverting rollers and woodworking machinery feed rollers this size is commonly specified for automotive welding jig positioners and conveyor transfer and diverting rollers, where the 90 mm track diameter and 30 mm stud fit standard cam and rail geometries in woodworking machinery feed rollers the 90 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 2000 g mass is low enough for rapid indexing cycles the absence of a cage increases friction torque; check that the cam drive can overcome the drag at low speed in oscillating applications the rollers can brinell if the stroke is too short to rotate the full complement; ensure the motion profile rotates the rollers through at least one full revolution

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• in oscillating applications the rollers can brinell if the stroke is too short to rotate the full complement; ensure the motion profile rotates the rollers through at least one full revolution
• the absence of a cage increases friction torque; check that the cam drive can overcome the drag at low speed
• the full complement is sensitive to contamination — any particle that enters the raceway can jam the roller pack and score the track