PWKR-80-2RS 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-80-2RS model number is decoded

the 80 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 57.2 kN and C0 73.5 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.78 is typical for sealed full-complement cylindrical-roller cam follower executions fatigue load limit Pu 9.3 kN at 30 mm stud gives a specific load of 1.91 kN per mm; the limiting speed is 2,000 r/min the 100 mm width carries the load at 0.57 kN per mm of roller complement; section height 25.0 mm between stud and track surface determines the outer-ring bending stiffness mass 1600 g over a 80x100 mm envelope works out to 0.200 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty at 30 mm stud this size crosses into the range where double-row full-complement executions (NUTR/PWTR/NUKR) offer substantially higher C ratings than the single-row needle designs the PWKR prefix denotes the sealed version of the twin-row cylindrical roller cam follower — greased for life and sealed against dust and moisture typical applications include printing press roller followers, automotive welding jig positioners and conveyor transfer and diverting rollers this size is commonly specified for printing press roller followers and automotive welding jig positioners, where the 80 mm track diameter and 30 mm stud fit standard cam and rail geometries in conveyor transfer and diverting rollers the 80 mm outer ring provides the rolling contact while the threaded stud simplifies mounting; the 1600 g mass is low enough for rapid indexing cycles the 2RS seals limit relubrication; the grease fill must last the design life of the cam mechanism the sealed outer ring cannot be inspected without destroying the seals; plan replacement on a time or cycle basis rather than condition monitoring

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the integral flanges and seals add width; verify the track channel accommodates the full B dimension plus flange protrusion
• the 2RS seals limit relubrication; the grease fill must last the design life of the cam mechanism
• the sealed construction prevents relubrication; the grease fill is sized for the calculated L10 life at the printed speed and load