Springs (Mechanism) 8 Brakes 5 Clutches (Machinery) 5 Gearing 5 Screws 5 Cams 4 Chains 3 mere ... Couplings 3 Flywheels 3 Machine design 3 Materials 3 Shafting 3 Vibration 3 Bearings (Machinery) 2 Belts and belting 2 Design and construction 2 Dies (Metal-working) 2 Engineering design 2 Fasteners 2 Feedback control systems 2 Hydraulic machinery 2 Joints (Engineering) 2 Lubrication and lubricants 2 Materials handling 2 Mechanical engineering 2 Mechanical movements 2 Mechanical wear 2 Metal stamping 2 Metal-work 2 Metals 2 mindre ...