KR22 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 KR22 model number is decoded

envelope 10×22×36 mm: the 22 mm outside diameter is the track-running surface — a thick-walled outer ring over a 10 mm stud — and the 36 mm overall stud-and-roller length sets the required bracket clearance the catalogue lists C 4.55 kN and C0 5.4 kN for the KR stud-type cam follower with needle roller and cage assembly; the C/C0 ratio of 0.84 reflects a rolling-element pack sized for heavy static track loading, and the 6.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 0.74 kN at 10 mm stud, equivalent to 0.45 kN of dynamic rating per millimetre — the limiting speed is 8,000 r/min and, as for HR1 track rollers, no thermal reference speed is published the 10 mm threaded stud clamps directly into the machine bracket; over the roller running width the dynamic rating works out to 0.13 kN per millimetre of rolling-element complement within the 36 mm overall stud length mass is 45 g, or 0.06 g per mm² of the 22×36 mm track envelope — inertia that the drive must accelerate on every index of the cam the 10 mm stud shank sits in the miniature band; at 36 mm wide the KR22 is built into compact cam drives, indexing pawls and light linkages KR is the stud-type cam follower with a needle roller and cage assembly: the 10 mm threaded stud bolts into the bracket and the 22 mm crowned outer ring follows the cam C 4.55 kN, C0 5.4 kN and Cur 0.74 kN are the cam-contact ratings; the limiting speed is 8,000 r/min with no reference speed published Typical applications include agricultural and textile cam followers, packaging machine timing mechanisms and robotic arm linear axes, where the 22 mm track diameter and 4.55 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 45 g mass keeps follower kinetics light. Designers also specify it for robotic arm linear axes, relying on the 36 mm stud length and the published 5.4 kN static rating. Never hammer the stud or use the hex socket as a press point during mounting; thread or socket damage renders the 36 mm stud unusable. 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.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Never hammer the stud or use the hex socket as a press point during mounting; thread or socket damage renders the 36 mm stud unusable.
• 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.