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Tradition has seen the employment of cast iron sprockets for standard applications. Where pattern equipment is not available or duty demands higher specifications sprockets will be offered in fabricated form. Cast sprockets to BS standard are available as follows.
Table 22.12 6,000 lbs, 27,000 kN and 7,500 lbs, 43,000 kN BREAKING LOAD |
|||||||||||
Pitch |
No of Teeth |
JK part No |
Dp |
De |
Dg |
Sj |
Dm |
Sh |
Sm |
Weight approx |
|
inches |
mm |
mm |
kg |
||||||||
2.0 |
50.8 |
8 |
SP43/0508/8T |
132.74 |
144 |
– |
– |
76 |
12.5 |
51 |
2.3 |
12 |
SP43/0508/12T |
196.27 |
212 |
– |
– |
102 |
12.5 |
51 |
5.4 |
||
3.0 |
76.2 |
8 |
SP43/0762/8T |
199.11 |
215 |
– |
– |
102 |
12.5 |
51 |
5.4 |
10 |
SP43/0762/10T |
246.58 |
264 |
193 |
25 |
114 |
12.5 |
64 |
8.6 |
||
12 |
SP43/0762/12T |
294.41 |
314 |
243 |
25 |
114 |
12.5 |
64 |
10.0 |
||
4.0 |
101.6 |
8 |
SP43/1016/8T |
265.51 |
281 |
204 |
25 |
114 |
12.5 |
64 |
8.6 |
10 |
SP43/1016/10T |
328.78 |
347 |
272 |
25 |
114 |
12.5 |
64 |
13.8 |
||
12 |
SP43/1016/12T |
392.56 |
411 |
338 |
25 |
127 |
12.5 |
70 |
16.1 |
||
6.0 |
152.4 |
8 |
SP43/1524/8T |
398.25 |
414 |
326 |
25 |
127 |
12.5 |
70 |
19.7 |
12 |
SP43/1524/12T |
588.82 |
608 |
527 |
25 |
133 |
12.5 |
76 |
34.2 |
Table 22.13 12,000 lbs, 55,000 kN and 15,000 lbs, 75,000 kN BREAKING LOAD |
|||||||||||
Pitch |
No of Teeth |
JK part No |
Dp |
Dm |
Dg |
Sj |
De |
Sh |
Sm |
Weight approx |
|
inches |
mm |
mm |
kg |
||||||||
3.0 |
76.2 |
8 |
SP75/0762/8T |
199.11 |
218 |
– |
– |
114 |
16 |
70 |
8.4 |
12 |
SP75/0762/12T |
294.41 |
318 |
230 |
32 |
133 |
16 |
76 |
15.0 |
||
4.0 |
101.6 |
8 |
SP75/1016/8T |
265.51 |
286 |
192 |
32 |
127 |
16 |
70 |
10.9 |
12 |
SP75/1016/12T |
392.56 |
415 |
325 |
32 |
140 |
16 |
76 |
20.2 |
||
6.0 |
152.4 |
8 |
SP75/1524/8T |
398.25 |
418 |
314 |
32 |
140 |
16 |
76 |
21.5 |
12 |
SP75/1524/12T |
588.82 |
612 |
514 |
32 |
165 |
16 |
89 |
41.3 |
Table 22.14 24,000 lbs, 110,000 kN and 30,000 lbs, 135,000 kN BREAKING LOAD |
|||||||||||
Pitch |
No of Teeth |
JK part No |
Dp |
Dm |
Dg |
Sj |
De |
Sh |
Sm |
Weight approx |
|
inches |
mm |
mm |
kg |
||||||||
4.0 |
101.6 |
8 |
SP135/1016/8T |
265.51 |
290 |
– |
– |
152 |
19 |
83 |
16.6 |
12 |
SP135/1016/12T |
392.56 |
420 |
312 |
38 |
165 |
19 |
95 |
31.3 |
||
6.0 |
152.4 |
8 |
SP135/1524/8T |
398.25 |
423 |
301 |
38 |
165 |
19 |
95 |
32.2 |
12 |
SP135/1524/12T |
588.82 |
617 |
502 |
38 |
196 |
19 |
130 |
63.0 |