KRE16-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 KRE16-PP model number is decoded

envelope 6×16×28 mm: the 16 mm outside diameter is the track-running surface — a thick-walled outer ring over a 6 mm stud — and the 28 mm overall stud-and-roller length sets the required bracket clearance the catalogue lists C 3.15 kN and C0 3.4 kN for the KRE stud-type cam follower with eccentric locking collar; the C/C0 ratio of 0.93 reflects a rolling-element pack sized for heavy static track loading, and the 5.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 0.46 kN at 6 mm stud, equivalent to 0.53 kN of dynamic rating per millimetre — the limiting speed is 14,000 r/min and, as for HR1 track rollers, no thermal reference speed is published the 6 mm threaded stud clamps directly into the machine bracket; over the roller running width the dynamic rating works out to 0.11 kN per millimetre of rolling-element complement within the 28 mm overall stud length mass is 20 g, or 0.04 g per mm² of the 16×28 mm track envelope — inertia that the drive must accelerate on every index of the cam at 6 mm stud shank this is one of the smallest HR1 executions — chosen where a 16 mm envelope must carry line-contact loads that no miniature ball bearing could take C 3.15 kN, C0 3.4 kN and Cur 0.46 kN are the cam-contact ratings; the limiting speed is 14,000 r/min with no reference speed published The caged pack keeps friction and inertia low — at 20 g this is the follower for fast indexing drives and high-cycle linkages Reading -PP: rubbing seals at each face of the 16 mm outer ring; they protect the rolling-element pack in abrasive track environments at the cost of a small drag torque. Typical applications include agricultural and textile cam followers, packaging machine timing mechanisms and robotic arm linear axes, where the 16 mm track diameter and 3.15 kN dynamic rating match the duty. In agricultural and textile cam followers the threaded stud bolts directly to the frame, and in packaging machine timing mechanisms the 20 g mass keeps follower kinetics light. Designers also specify it for robotic arm linear axes, relying on the 28 mm stud length and the published 3.4 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. On eccentric KRE/NUKRE/PWKRE units, re-torque after setting the collar — the adjustment changes the effective stud engagement.

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.
• On eccentric KRE/NUKRE/PWKRE units, re-torque after setting the collar — the adjustment changes the effective stud engagement.
• Sealed PP/2RS followers are life-lubricated; open KR/NUKR executions need the stud greaseway serviced on a fixed interval.