Joint yokes = 530M40 Alloy steel locally hardened and tempered around the bearings.
Spider pins = 708M20 Molybdenum Chrome steel hardened and tempered.
F1 = Max Torque (Nm)
F2 = Static Torque (Nm)
X - Dowel pin DIN 1481 (2 off supplied)
Y - Screw DIN 916 (2 off supplied)
PLEASE ALSO SEE OUR WDS 553 NEEDLE ROLLER BEARING RANGE