PWKR-72-2RS 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 PWKR-72-2RS 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 39.6 kN and C0 45 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.88 is typical for sealed full-complement cylindrical-roller cam follower executions fatigue load limit Pu 5.6 kN at 24 mm stud gives a specific load of 1.65 kN per mm; the limiting speed is 2,600 r/min the 80 mm width carries the load at 0.49 kN per mm of roller complement; section height 24.0 mm between stud and track surface determines the outer-ring bending stiffness mass 1000 g over a 72x80 mm envelope works out to 0.174 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty the 24 mm stud diameter falls in the small-size band, the most common choice for general-purpose cam followers and light conveyor transfer rollers the PWKR..2RS execution combines the maximum load capacity of the double-row full complement with integral sealing — the heaviest and most protected option in the cam follower range typical applications include woodworking machinery feed rollers, cam mechanisms and indexing drives and material handling lift and lower tracks this size is commonly specified for woodworking machinery feed rollers and cam mechanisms and indexing drives, where the 72 mm track diameter and 24 mm stud fit standard cam and rail geometries in material handling lift and lower tracks the 72 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 1000 g mass is low enough for rapid indexing cycles the sealed twin-row construction is the heaviest cam follower option — verify the drive torque can accelerate the roller at the required cam profile rate the 2RS seals limit relubrication; the grease fill must last the design life of the cam mechanism

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the sealed twin-row construction is the heaviest cam follower — verify the drive can accelerate the mass at the required cam rate
• the sealed twin-row construction is the heaviest cam follower option — verify the drive torque can accelerate the roller at the required cam profile rate
• the integral flanges and seals add width; verify the track channel accommodates the full B dimension plus flange protrusion