KRV-32-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-32-PPA model number is decoded

the 32 mm outside diameter runs on the track while the 12 mm stud shank takes the pin or shaft; the 40 mm overall width spreads the Hertzian contact over the outer ring published ratings C 9.35 kN and C0 15.3 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.61 is typical for full-complement cam follower with needle rollers executions fatigue load limit Pu 1.76 kN at 12 mm stud gives a specific load of 0.78 kN per mm; the limiting speed is 3,200 r/min the 40 mm width carries the load at 0.23 kN per mm of roller complement; section height 10.0 mm between stud and track surface determines the outer-ring bending stiffness mass 100 g over a 32x40 mm envelope works out to 0.078 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty at 12 mm stud this size balances load capacity and envelope compactness — a frequent pick for packaging machines and printing press linkages KRV denotes the full-complement cam follower: no cage, the maximum number of needle rollers for the 32 mm envelope, raising C0 to 15.3 kN at the cost of the 3200 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 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 32 mm track diameter and 12 mm stud fit standard cam and rail geometries in woodworking machinery feed rollers the 32 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 100 g mass is low enough for rapid indexing cycles full-complement needle rollers have no cage to separate them — momentary unloading can let rollers skew and jam in the track the higher static capacity of the full complement does not raise the fatigue life; the dynamic C rating still limits the L10 life

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the higher static capacity of the full complement does not raise the fatigue life; the dynamic C rating still limits the L10 life
• full-complement needle rollers have no cage to separate them — momentary unloading can let rollers skew and jam in the track
• the absence of a cage increases friction torque; check that the cam drive can overcome the drag at low speed