Mechanical Design Data Book

Mechanical Design Data Book

Contents:-
1 Friction Clutches
• Single plate clutches…………………………………………………………………05
• Multi plate clutches……………………………………………………………………05
• Cone clutches………………………………………………………………………………………06
• Centrifugal clutches……………………………………………………………………06
2 Brakes
• External Contracting Brakes…………………………………………………08
• Internal Expanding Brake…………………………………………………………09
• Band Brakes……………………………………………………………………………………………10
• Thermal Considerations………………………………………………………………11
3 Belt Drives
• Geometrical Relationships………………………………………………………12
• Analysis of Belt Tensions………………………………………………………13
• Condition for Maximum Power…………………………………………………13
• Selection of Flat Belts from the Manufacture’s
Catalogue…………………………………………………………………………………………………13
• Selection of V-Belts……………………………………………………………………15
4 Chain Drives
• Roller Chains………………………………………………………………………………………20
• Geometrical Relationships………………………………………………………20
• Power Rating of Roller Chains……………………………………………21
• Sprocket Wheels…………………………………………………………………………………24
5 Rolling Contact Bearings
• Stribeck’s Equation………………………………………………………………………25
• Equivalent Bearing Load……………………………………………………………26
• Load Life Relationship………………………………………………………………26
• Selection of Bearing from the Manufacture’s
Catalogue…………………………………………………………………………………………………27
• Selection of Taper Roller Bearings………………………………32
• Design for Cyclic Load and Speed……………………………………38
• Bearing With a Probability of Survival Other Than
90 Percent………………………………………………………………………………………………38
6 Sliding Contact Bearings
• Effect of Temperature on Viscosity………………………………39
• Hydrostatic Step Bearing…………………………………………………………40
• Energy Losses in Hydrostatic Bearing…………………………40
• Reynold’s Equation…………………………………………………………………………41
• Raimondi and Boyd Method…………………………………………………………41
• Temperature Rise………………………………………………………………………………43
• Bearing Design –Selection of Parameters…………………44
7 Spur Gears
• Standard System of Gear Tooth……………………………………………45
• Force Analysis……………………………………………………………………………………50
• Beam Strength of Gear Tooth…………………………………………………47
• Effective Load on Gear Tooth………………………………………………48
• Estimation of Module Based on Beam Strength………50
• Wear Strength of Gear Tooth…………………………………………………50
• Estimation of Module Based on Wear Strength………51
• Gear Design for Maximum Power Transmitting
Capacity……………………………………………………………………………………………………51
8 Helical Gears
• Virtual Number of Tooth……………………………………………………………52
• Tooth Proportions……………………………………………………………………………53
• Beam Strength of Helical Gears…………………………………………54
• Effective Load on Gear Tooth………………………………………………54
• Wear Strength of Helical Gears…………………………………………55
9 Bevel Gears
• Force Analysis……………………………………………………………………………………57
• Beam Strength of Bevel Gears………………………………………………58
• Wear Strength of Bevel Gears………………………………………………59
• Effective Load on Gear Tooth………………………………………………60
10 Worm Gears
• Proportions of Worm Gears………………………………………………………62
• Force Analysis……………………………………………………………………………………64
• Friction in Worm Gears………………………………………………………………64
• Strength Rating of Worm Gears……………………………………………65
• Wear rating of worm gears………………………………………………………67

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