Mechanical Engineering Standard Design Data Book

It is the standard design data book for designing any component like bearings,shafts,gears,etc.

18. Table 13:5 Power rating of V-beks
(6, 180%; speed of the fuer pulley = 144029.m)
(D = palioy anni (sim), PR power aig In KW)
7 8 6 90 10 106 2M2 18 12
O73 086° 099 112 138 150. 163 181.200
125 m 100 150 160 + 180 190 20
224 246 277 330 "39D 400 439 4.77523,

168 828 940 1040 1110 1240 1250

6 Correction factor (Fa) for Industrial servico =
‘Operational hours per day
O10 10-46 164

Type of service
y Light duty: aptos Dlowers-ceatifogal pamps 11 12 13
fans (up 10 75 KW) and compressors.
(2) Medium duty: conveyoesfans (sbowe 75 KW 12 13 14
hafs-machine tools proses and poskive dsplace-
pe

CG) Heavy dy comeyosbucker devas ad 13 14
becomes

19. Table 13.7. Correction factor Fi for belt length
(Ly = soosial raide length ofthe bein ea)

Bat section
G
07

os
050

092

22. 2B 16B
107 259
201 483
ES
SAB. - 1306
853 2057
168 217
1565 3489
1815

1985

23. Table 14.3 Service factor (Ka)

Type of input power

6) LC. Engine with bydeaatic drive
(i) Becario motor
fü) LC. Engine with mechanical drive

25. of the sprocket wheat
Figs. 14.8 and 149)

sora)
=D =

(hen (03054 + 00607%)
(en = 05052

(reer = 00064 + 180)
es
EN cfr

=

un =0 y 058 088
Arosa
were

ip = 0st. gp «12 70m
Bn 0959. Hp > 127 mm

ba-01pi0015p'

29. Principal Basic load
dimensions ratings(N) Designation
(mm

38. ‘Table 15.4 Asia loading of Taper role bearings
Tend cue

roy

Carta

laxo

heey

ra <Fn

Ikz205 (Fa)

hey
267

Ir <05 (Pa -Fa)

[ra = E

ha tee
EA

39. Fin the above table, it is assumed that beatings. A and B ars ai idendcal (YA = Yo = 1)
Coura ol ASSOCIATED BEARING CAMPANY LIMITED, Hochs Home, Boabay

40. |
E
i
i
i

20 30 40 sw
TEMPERATURE °c
IS: {AG Viecostty-tompereture relationship

45. ‘Table 16.2 Permissible. bearing pressures.

#

Application Unit bearing pressure (p) (N/a?)

Diesel enges
main bearing 510
714

1514

34

51. ‘Table 17.4 Tolerances on the adjacent pitch
e (enicrons)
080 + 0.066
125 +0.10¢
200+0.164
320+0254
500+0404

800+0634
1.000.904
160041254
22.00 +180

63. 20.1 Preferred valuo of 2v/2/4/m for worm gears

(Centre distance (am)

125 160 200 250
Zanes 201105 ETT

— UNO UNS 252108
wsonos — 181/146 12008. aan —
ano mons’ — © MDR 14010n0

as 154105
Preferred values ofg: 8, 10, 125, 16, 20 and 25.
le number of starts (2,) on the worm are usually taken as 1, 2 or 4.

67. ‘Table 20.2 Values of bending Stress factor Se

Material
Phosphor-bronze (ceatrifugally cast)
Phosphor-bronze (sand-cast chilled)
Phosphor-brorize (sand-cast)

0.4% Carbon steel~normalized (40C8)

0.55% Carbon sssel-normalized (5508)

(Case-bardened carbon sieels (1004, 1405)
(Case-handened alloy steels (16NiG0Crg0 and 20Ni2Mo25)
Nickel-chrornium steels (13Ni3C:80 and LSNi4Cr1)

68. Fig. 2 Speed taco fx worm ger o nung Xo