Before revision: Structural elements Shafts Couplings Bearings Fasteners Keys, Splines and Cotter pin Seals Mechanical elements Belt, Chain, Cable drives Clutch Brake Gear train Cam and follower systems Linkage Simple machine Types Shafts Coupling Key Spline Bearing Roller bearing Plain bearing Thrust bearing Ball bearing Linear bearing Pillow block Gears Spur gear Helical gear Worm gear Herringbone gear Sprocket FastenerNiemann, Gustav; Hirt, Manfred: Maschinenelemente Springer, Berlin 1975, 1983. .
After revision: Structural elements Bearings Fasteners Keys, Splines and Cotter pin Seals Mechanical elements Belt, Chain, Cable drives Clutch Brake Gear train Cam and follower systems Linkage Simple machine Types Shafts Coupling Key Spline Bearing Roller bearing Plain bearing Thrust bearing Ball bearing Linear bearing Pillow block Gears Spur gear Helical gear Worm gear Herringbone gear Sprocket FastenerNiemann, Gustav; Hirt, Manfred: Maschinenelemente Springer, Berlin 1975, 1983. .