L09_A
Chapter8.5 Wedges
Chapter8.6 Square-Threaded Screws
L09_B
Chapter8.7 Journal Bearings,.Axle Friction
Chapter8.8 Thrust Bearings, Disk Friction
Chapter8.9 Wheel Friction , Rolling Resistance
Chapter8.10 Belt Friction
Array ( [0] => Array ( [title] => L9A [link] => https://www.youtube.com/embed/tq2Sfw2awYo ) [1] => Array ( [title] => L9B [link] => https://www.youtube.com/embed/pik6bBs6A3E ) )
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Syllabus