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JNTUK R20 B.Tech Mechanical 3-2 DMM – II Material/ Notes PDF Download: For JNTUK R20 B.Tech Mechanical 3-2 DMM – II, students can access study material covering various mechanical engineering topics. This includes bearings, engine parts, curved beams, power screws, pulleys, gear drives, and machine tool elements. They’ll learn about bearing design, engine part concepts, and using power screws and curved beams in machines. Also, they’ll understand how pulleys and gear drives work and design machine tools. This JNTUK R20 B.Tech Mechanical 3-2 DMM – II Material helps students understand these subjects better and is available for download in PDF format.
JNTUK R20 B.Tech Mechanical 3-2 DMM – II Material – Units
| No. Of Units | Name of the Unit |
| Unit – 1 | Bearings |
| Unit – 2 | Engine Parts |
| Unit – 3 | Design of Curved Beams, Design of Power Screws |
| Unit – 4 | Power Transmission Systems, Pulleys, Spur & Helical Gear Drives |
| Unit – 5 | Machine Tool Elements, Wire Ropes |
Unit 1 Syllabus PDF Download | JNTUK R20 B.Tech Mechanical Design of Machine Members – II Material
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.
| JNTUK R20 B.Tech Mechanical 3-2 DMM – II Material – PDF Download | |
| To Download The JNTUK R20 B.Tech Mechanical 3-2 DMM – II Unit 1 Notes PDF | Download PDF |
Unit 2 Syllabus PDF Download | JNTUK R20 B.Tech Mechanical Design of Machine Members – II Material
Engine Parts: Connecting Rod: Thrust in connecting rod – stress due to whipping action on connecting rod ends – cranks and crankshafts, strength and proportions of overhung and center cranks – crank pins, crankshafts. Pistons, forces acting on piston – construction design and proportions of piston, cylinder, cylinder liners.
| JNTUK R20 B.Tech Mechanical 3-2 DMM – II Material – PDF Download | |
| To Download The JNTUK R20 B.Tech Mechanical 3-2 DMM – II Unit 2 Notes PDF | Download PDF |
Unit 3 Syllabus PDF Download | JNTUK R20 B.Tech Mechanical Design of Machine Members – II Material
Design of Curved Beams: introduction, stresses in curved beams, the expression for the radius of neutral axis for rectangular, circular, trapezoidal, and t-section, design of crane hooks, c –c-clamps.
Design of Power Screws: Design of screw, square ACME, buttress screws, design of nut, compound screw, differential screw, ball screw- possible failures.
| JNTUK R20 B.Tech Mechanical 3-2 DMM – II Material – PDF Download | |
| To Download The JNTUK R20 B.Tech Mechanical 3-2 DMM – II Unit 3 Notes PDF | Download PDF |
Unit 4 Syllabus PDF Download | JNTUK R20 B.Tech Mechanical Design of Machine Members – II Material
Power Transmission 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
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 center distance, module, and face width, check for plastic deformation, check for dynamic and wear considerations.
| JNTUK R20 B.Tech Mechanical 3-2 DMM – II Material – PDF Download | |
| To Download The JNTUK R20 B.Tech Mechanical 3-2 DMM – II Unit 4 Notes PDF | Download PDF |
Unit 5 Syllabus PDF Download | JNTUK R20 B.Tech Mechanical Design of Machine Members – II Material
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, and Stresses in wire ropes, rope sheaves, and drums.
| JNTUK R20 B.Tech Mechanical 3-2 DMM – II Material – PDF Download | |
| To Download The JNTUK R20 B.Tech Mechanical 3-2 DMM – II Unit 5 Notes PDF | Download PDF |
JNTUK R20 B.Tech DMM – II Material – Outcomes
- Learn how to design bearings to support rotating machinery and reduce friction.
- Understand the design concepts behind engine parts like pistons, cylinders, and valves.
- Explore the design of curved beams and power screws and how they’re used in mechanical systems.
- Justify the selection and design of power transmission systems, including pulleys and gear drives.
- Apply the principles of design to various machine tool elements used in manufacturing processes.
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