Material: Low alloy martensitic chrome steel AISI 52100/ Gcr15. They offer superior wear resistance, high load bearing capacity, excellent surface quality and dimensional precision.
Size: 3/4" (19.05mm) with diameter tolerance +/-0.0001".
Hardness: HRC 60-66, hardened.
Applications: Precision bearings, linear guide rail, ball screws, bicycle, scooters, skates, castors, sliders, automotive components (brakes, steering, line shaft), quick couplings, lock mechanisms, conveyor belts, measurement instruments, valves etc.
Features: They can be attracted by magnet, but they are not magnet balls themselves nor magnetized; Widely used where high hardness is important, but corrosion resistance is not.