KRV32-PP bearing: complete specifications & equivalents

Specification table

Source: catalog reference (HR1 2026-09-25) · extracted 2026-09-30

Parameters extracted from the official FAG Rolling Bearings catalogue (HR1 2026-09-25); FAG® is a trademark of Schaeffler Technologies AG & Co. KG, used here for identification only — mpnbase is not an authorized FAG/Schaeffler distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at schaeffler.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 KRV32-PP model number is decoded

envelope 12×32×40 mm: the 32 mm outside diameter is the track-running surface — a thick-walled outer ring over a 12 mm stud — and the 40 mm overall stud-and-roller length sets the required bracket clearance the catalogue lists C 10 kN and C0 16.3 kN for the KRV full-complement stud-type cam follower; the C/C0 ratio of 0.61 reflects a rolling-element pack sized for heavy static track loading, and the 10.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 2.24 kN at 12 mm stud, equivalent to 0.83 kN of dynamic rating per millimetre — the limiting speed is 2,100 r/min and, as for HR1 track rollers, no thermal reference speed is published the 12 mm threaded stud clamps directly into the machine bracket; over the roller running width the dynamic rating works out to 0.25 kN per millimetre of rolling-element complement within the 40 mm overall stud length mass is 101 g, or 0.08 g per mm² of the 32×40 mm track envelope — inertia that the drive must accelerate on every index of the cam at 12 mm stud shank this is one of the smallest HR1 executions — chosen where a 32 mm envelope must carry line-contact loads that no miniature ball bearing could take The standard stud axis fixes the roller centre; shimming the bracket faces is the way to adjust track preload The crowned outer-ring profile is the standard form: it distributes edge stress when the cam track is not perfectly parallel, and a cylindrical-profile variant would be ordered separately The PP seals make this a maintenance-free unit: the 10 kN C rating is slightly below the open execution because the seal recesses shorten the effective roller complement. Typical applications include conveyor transfer and diverting stations, robotic arm linear axes and automotive welding jig rollers, where the 32 mm track diameter and 10 kN dynamic rating match the duty. In conveyor transfer and diverting stations the threaded stud bolts directly to the frame, and in robotic arm linear axes the 101 g mass keeps follower kinetics light. Designers also specify it for automotive welding jig rollers, relying on the 40 mm stud length and the published 16.3 kN static rating. The stud must be fully supported and the nut torqued to the catalogue value; a loose follower wears the bracket hole oval and loosens further. Use a washer under the nut and a flat square bracket face; the stud head alone cannot spread the clamp load of the heavy double-row executions.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The stud must be fully supported and the nut torqued to the catalogue value; a loose follower wears the bracket hole oval and loosens further.
• Use a washer under the nut and a flat square bracket face; the stud head alone cannot spread the clamp load of the heavy double-row executions.
• Full-complement followers trade speed for static capacity — apply the lower limiting speed and expect higher drive torque than a caged KR.