A disc clamp is provided for securing discs to a spindle motor. In
particular, the clamp is useful in providing distributed forces to the
discs. The clamp includes an annular body having an upper surface, a
lower surface, an inner circumference and an outer circumference. A
flange extends from the lower surface of the annular body and has an
inner surface oriented towards the inner circumference of the annular
body. A plurality of apertures are formed between the upper and lower
surfaces of the annular body and are configured to receive fasteners.
Further, a plurality of force distributing features are formed in the
flange between the outer surface of the flange and the inner surface of
the flange.