JNTUK R19 3-1 DMM-2 Material/Notes PDF Download


JNTUK R19 3-1 DMM-2 Material/Notes PDF Download

Students those who are studying JNTUK R19 Mechanical Branch, Can Download Unit wise R19 3-1 Design of Machine Members–II (DMM-2) Material/Notes PDFs below.


JNTUK R19 3-1 DMM-2 Material/Notes PDF Download


  • This course gives the insight of slider and roller bearings and the life prediction.
  • Learn to design I.C engine parts
  • Design the mechanical systems for power transmission such as gears, belts, ropes, chains, keys and levers


BEARINGS: Classification of bearings- applications, types of journal bearings – lubrication – bearing modulus – full and partial bearings – clearance ratio – heat dissipation of bearings, bearing materials – journal bearing design – ball and roller bearings – static loading of ball & roller bearings, bearing life.

Download UNIT-1 Material PDF | Reference-2


ENGINE PARTS: Connecting Rod: Thrust in connecting rod – stress due to whipping action on connecting rod ends – cranks and crank shafts, strength and proportions of over hung and center cranks – crank pins, crank shafts. Pistons, forces acting on piston – construction design and proportions of piston, cylinder, cylinder liners.

Download UNIT-2 Material PDF | Reference-2


POWER TRANSMISSIONS SYSTEMS, PULLEYS: Transmission of power by belt and rope drives, transmission efficiencies, belts – flat and V types – ropes – pulleys for belt and rope drives, materials, chain drives.

DESIGN OF POWER SCREWS: Design of screw, square ACME, buttress screws, design of nut, compound screw, differential screw, ball screw- possible failures.

Download UNIT-3 Material PDF


SPUR & HELICAL GEAR DRIVES: Spur gears- helical gears – load concentration factor – dynamic load factor, surface compressive strength – bending strength – design analysis of spur gears – estimation of centre distance, module and face width, check for plastic deformation, check for dynamic and wear considerations.

Download UNIT-4 Material PDF | Reference-2

UNIT – 5

MACHINE TOOL ELEMENTS: Levers and brackets: design of levers – hand levers-foot lever – cranked lever – lever of a lever loaded safety valve- rocker arm straight – angular- design of a crank pin – brackets- hangers- wall boxes.

Wire Ropes: Construction, Designation, Stresses in wire ropes, rope sheaves and drums.

Download UNIT-5 PART-A Material PDF

Design of curved Beams: introduction, stresses in curved beams, expression for radius of neutral axis for rectangular, circular, trapezoidal and t-section, design of crane hooks, c –clamps.

Download UNIT-5 PART-B Material PDF

Note: Design data book is permitted for examination


  1. Machine Design by R.S.Khurmi and J.K.Gupta, S.ChandPublishers,New Delhi.
  2. Machine Design, S MD Jalaludin, Anuradha Publishers.
  3. Design of Machine Elements by V. Bhandari TMH


  1. Machine Design Data Book by S MD Jalaludin, Anuradha Publishers
  2. Machine Design Data Book by P.S.G. College of Technology
  3. Machine Design by Pandya and Shah, Chortar Publications.
  4. Machine Design / R.N. Norton
  5. Mechanical Engineering Design / JE Shigley.


  • To gain the knowledge on bearings and Select suitable bearings and its constituents from manufacturers catalogues under given loading conditions
  • Calculate the design parameter for energy storage element and engine components, connecting rod and piston
  • To understand the types belt drives and Select suitable belt drives and associated elements from manufacturers catalogues under given loading conditions to design the springs for different loading conditions
  • Select appropriate gears for power transmission on the basis of given load and speed Design gears based on the given conditions Apply the design concepts to estimate the strength of the gear
  • Analyze power screws subjected to loading

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