A bearing device for a pedal assembly includes an integrally formed positioning block, a connecting block and a bearing. The connecting block has a connecting hole aligning with a second threaded hole of the positioning block, a second cutout defined in a top side of the connecting block to communicate with a first cutout of the positioning block and an engagement hole defined in a lower portion thereof for engagement with a recoil spring of the pedal assembly. A bearing is securely received in the first cutout and the second cutout. A first threaded bolt is extending through the aligned first threaded hole and the through hole for secure engagement of the bearing inside the positioning block. A second threaded bolt is extending into the aligned connecting hole and the second threaded hole to secure engagement between the positioning block and the connecting block.