Machine Drawing

178 Machine Drawing dharm d:\N-Design\Des12-1.pm5 28 12 130 f 16 Bolt OIL HOLE, DIA 3, DEEP 20, CSK DIA 6 144 Cap 6 f^19 20 64 3 ...

Bearings 179 dharm d:\N-Design\Des12-1.pm5 Instead of a snug, the brasses may be provided with square or octogonal seatings to p ...

180 Machine Drawing dharm d:\N-Design\Des12-1.pm5 45 35 2525 4040 2828 2020 f 36 f^25 R 18 R18 2 BOLTS, M6 10 36 2 R25 70 50 9 1 ...

Bearings 181 dharm d:\N-Design\Des12-1.pm5 Pillar brackets Figure 12.7 shows a pillar bracket, with a pedastal bearing mounted o ...

182 Machine Drawing dharm d:\N-Design\Des12-1.pm5 f 115 f 95 Bush SNUG, WIDE 10 R40 R 30 R30 R40 R 150 12 1810 33 44 1212 1616 1 ...

Bearings 183 dharm d:\N-Design\Des12-1.pm5 The disc is prevented from rotation by a pin inserted through the body and away from ...

184 Machine Drawing dharm d:\N-Design\Des12-1.pm5 Outer race Inner race Balls Cage Fig. 12.11 Parts of a ball bearing Locking wa ...

Bearings 185 dharm d:\N-Design\Des12-1.pm5 Light series Medium series Heavy series Single row ball bearing Double rowball bearin ...

186 Machine Drawing dharm d:\N-Design\Des12-1.pm5 Fig. 12.15 Mounting of a thrust ball bearing 10 60 10 18 88 103 14 10 f 80 f 6 ...

Bearings 187 dharm d:\N-Design\Des12-1.pm5 15 22 M52f 58 15 15 f 16 8 1015 30 15 10 300 335 30 28 2 f 60 60° (^2542) 2 2 2 2 f 3 ...

188 Machine Drawing dharm d:\N-Design\Des12-1.pm5 12.2 Draw the following views of a plummer block, suitable for supporting a sh ...

189 CHAINS AND GEARS 13 13.1 Introduction Chain drive consists of an endless chain whose links mesh with toothed wheels known as ...

190 Machine Drawing dharm d:\N-Design\Des13-1.pm5 Table 13.1 Roller chain dimensions. Dimensions are in mm Designation Pitch Rol ...

Chains and Gears 191 dharm d:\N-Design\Des13-1.pm5 R (a) (b) Fig. 13.3 Sprockets 13.7 Gears Gears are machine elements, which ar ...

192 Machine Drawing dharm d:\N-Design\Des13-1.pm5 13.10 Tooth Profiles A number of curves may be used for the tooth profile. How ...

Chains and Gears 193 dharm d:\N-Design\Des13-1.pm5 0 f Ded. circle Base circle Pitch circle Add. circle RadialRadial lineslines ...

194 Machine Drawing dharm d:\N-Design\Des13-1.pm5 Case 1 Number of teeth is 30 and above (Fig.13.7) With O as centre, draw arcs ...

Chains and Gears 195 dharm d:\N-Design\Des13-1.pm5 0 2 ¢ 3 4 P R 2 (^13) ¢ R Tangent to the arc from the centre Path of centres ...

196 Machine Drawing dharm d:\N-Design\Des13-1.pm5 q q q Centre distance Da 2 Dd 2 Da 1 Tr Tw L B Dd 1 D 1 +D 2 Shaft dia. Hub di ...

Chains and Gears 197 dharm d:\N-Design\Des13-1.pm5 Shaft dia a d Pitch cone radius a B Tw L Hubdia D Tr Pitch line Fig. 13.12 Be ...