NATV-12 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-12 model number is decoded

the 32 mm outside diameter runs on the track while the 12 mm bore takes the pin or shaft; the 15 mm overall width spreads the Hertzian contact over the outer ring published ratings C 9.35 kN and C0 15.3 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.61 is typical for full-complement support roller with flange rings, with inner ring executions fatigue load limit Pu 1.76 kN at 12 mm bore gives a specific load of 0.78 kN per mm; the limiting speed is 3,000 r/min the 15 mm width carries the load at 0.62 kN per mm of roller complement; section height 10.0 mm between bore and track surface determines the outer-ring bending stiffness mass 72 g over a 32x15 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 the 12 mm bore falls in the small-size band, the most common choice for general-purpose cam followers and light conveyor transfer rollers reading NATV: cageless, fully rolled needle roller support roller; the extra rollers raise C0 to 15.3 kN for slow, heavy cam duty 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 32 mm track diameter and 12 mm bore fit standard cam and rail geometries in automotive welding jig positioners the 32 mm outer ring provides the rolling contact while the inner ring bore simplifies mounting; the 72 g mass is low enough for rapid indexing cycles 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

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• full complement needle rollers have no cage to separate them — momentary unloading can let rollers skew and jam in the track
• 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