NATV-8-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 NATV-8-PPA model number is decoded

the 24 mm outside diameter runs on the track while the 8 mm bore takes the pin or shaft; the 15 mm overall width spreads the Hertzian contact over the outer ring published ratings C 7.48 kN and C0 11.4 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.66 is typical for full-complement support roller with flange rings, with inner ring executions fatigue load limit Pu 1.32 kN at 8 mm bore gives a specific load of 0.94 kN per mm; the limiting speed is 3,600 r/min the 15 mm width carries the load at 0.50 kN per mm of roller complement; section height 8.0 mm between bore and track surface determines the outer-ring bending stiffness mass 41 g over a 24x15 mm envelope works out to 0.114 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty the 8 mm bore places this in the smallest catalogue tier — typical for instrument cams, small conveyors and precision linear guides where space is at a premium NATV drops the cage to pack the maximum number of needle rollers into the 24 mm envelope; the result is the highest static capacity of the flanged support rollers, at the cost of increased friction and heat PPA changes the outer-ring profile from cylindrical to crowned; the barrel shape lowers edge stress when the cam track is not perfectly parallel to the roller axis typical applications include agricultural equipment cam followers, packaging machine timing cams and glass processing line conveyors this size is commonly specified for agricultural equipment cam followers and packaging machine timing cams, where the 24 mm track diameter and 8 mm bore fit standard cam and rail geometries in glass processing line conveyors the 24 mm outer ring provides the rolling contact while the inner ring bore simplifies mounting; the 41 g mass is low enough for rapid indexing cycles 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 full-complement rollers generate more friction and heat — the lower limiting speed is a hard thermal limit, not a suggestion

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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
• full-complement rollers generate more friction and heat — the lower limiting speed is a hard thermal limit, not a suggestion