PWKR-47-2RS 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-47-2RS model number is decoded

the 47 mm outside diameter runs on the track while the 20 mm stud shank takes the pin or shaft; the 66 mm overall width spreads the Hertzian contact over the outer ring published ratings C 22.9 kN and C0 24.5 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.93 is typical for sealed full-complement cylindrical-roller cam follower executions fatigue load limit Pu 2.8 kN at 20 mm stud gives a specific load of 1.15 kN per mm; the limiting speed is 3,800 r/min the 66 mm width carries the load at 0.35 kN per mm of roller complement; section height 13.5 mm between stud and track surface determines the outer-ring bending stiffness mass 380 g over a 47x66 mm envelope works out to 0.123 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty the 20 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 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 food processing line track rollers, printing press roller followers and automotive welding jig positioners this size is commonly specified for food processing line track rollers and printing press roller followers, where the 47 mm track diameter and 20 mm stud fit standard cam and rail geometries in automotive welding jig positioners the 47 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 380 g mass is low enough for rapid indexing cycles the integral flanges and seals add width; verify the track channel accommodates the full B dimension plus flange protrusion the sealed construction prevents relubrication; the grease fill is sized for the calculated L10 life at the printed speed and load

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the sealed construction prevents relubrication; the grease fill is sized for the calculated L10 life at the printed speed and load
• the integral flanges and seals add width; verify the track channel accommodates the full B dimension plus flange protrusion
• 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