Tham khảo tài liệu 'advanced vehicle technology 2 episode 13', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | one end on it supporting carrier bracket. The disc is driven by the transmission drive shaft hub on which it is mounted and the lining pads are positioned and supported on either side of the disc by the rectangular aperature in the yoke frame. Operation Fig. When the foot brake is applied generated hydraulic pressure pushes the piston and inboard pad against their adjacent disc face. Simultaneously the hydraulic reaction will move the cylinder in the opposite direction away from the disc. Consequently as the outboard pad and cylinder body are bridged by the yoke the latter will pivot forcing the outboard pad against the opposite disc face to that of the inboard pad. As the pads wear the yoke will move through an arc about its pivot and to compensate for this tilt the lining pads are taper shaped. During the wear life of the pad friction material the amount of taper gradually reduces so that in a fully worn state the remaining friction material is approximately parallel to the steel backing plate. The operating clearance between the pads and disc is maintained roughly constant by the inherent distortional stretch and retraction of the pressure seals as the hydraulic pressure is increased and reduced respectively which accordingly moves the piston forwards and back. Sliding yoke type brake caliper Fig. . With this type of caliper unit the cylinder body is rigidly attached to the suspension hub carrier whereas the yoke steel pressing fits over the cylinder body and is permitted to slide between parallel grooves formed in the cylinder casting. Operation Fig. When the foot brake is applied hydraulic pressure is generated between the two pistons. The hydraulic pressure pushes the piston apart the direct piston forces the direct pad against the disc whilst the indirect piston forces the yoke to slide in the cylinder in the opposite direction until the indirect pad contacts the outstanding disc face. Further pressure build-up causes an equal but .
