Here's a listing of a rotor & the bearings from RockAuto. These are in the Brake & Wheel Hub section. I looked them up under a 1979 Malibu.
WAGNER BD102074 Rotor & Hub Info
Front
$30.79
TIMKEN SET6 {Click Info Button for Alternate/OEM Part Numbers} Wheel Bearing and Race Set; Includes Timken # LM67048 and Timken # LM67010 Info
Front Inner
$4.92
TIMKEN SET3 {Click Info Button for Alternate/OEM Part Numbers} Wheel Bearing and Race Set Info
Front Outer
$5.56
WAGNER BD102074 Rotor & Hub Info
Front
$30.79
TIMKEN SET6 {Click Info Button for Alternate/OEM Part Numbers} Wheel Bearing and Race Set; Includes Timken # LM67048 and Timken # LM67010 Info
Front Inner
$4.92
TIMKEN SET3 {Click Info Button for Alternate/OEM Part Numbers} Wheel Bearing and Race Set Info
Front Outer
$5.56