NATV-15-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-15-PPA model number is decoded

the 35 mm outside diameter runs on the track while the 15 mm bore takes the pin or shaft; the 19 mm overall width spreads the Hertzian contact over the outer ring published ratings C 12.3 kN and C0 23.2 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.53 is typical for full-complement support roller with flange rings, with inner ring executions fatigue load limit Pu 2.7 kN at 15 mm bore gives a specific load of 0.82 kN per mm; the limiting speed is 2,600 r/min the 19 mm width carries the load at 0.65 kN per mm of roller complement; section height 10.0 mm between bore and track surface determines the outer-ring bending stiffness mass 100 g over a 35x19 mm envelope works out to 0.150 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty at 15 mm bore this size balances load capacity and envelope compactness — a frequent pick for packaging machines and printing press linkages the NATV prefix identifies a full-complement flanged support roller — ideal for slow, heavily loaded tracks where the cam profile generates high contact stress but the surface speed stays moderate the PPA variant has a crowned track surface: the 35 mm OD is finished with a large-radius crown that compensates for minor track misalignment and reduces edge stress concentration typical applications include conveyor transfer and diverting rollers, woodworking machinery feed rollers and cam mechanisms and indexing drives this size is commonly specified for conveyor transfer and diverting rollers and woodworking machinery feed rollers, where the 35 mm track diameter and 15 mm bore fit standard cam and rail geometries in cam mechanisms and indexing drives the 35 mm outer ring provides the rolling contact while the inner ring bore simplifies mounting; the 100 g mass is low enough for rapid indexing cycles without a cage the rollers can skew under momentary unloading, leading to edge loading and premature raceway pitting the higher static capacity invites overloading; remember the dynamic C rating still governs fatigue life

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
• without a cage the rollers can skew under momentary unloading, leading to edge loading and premature raceway pitting
• 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