Modified Stock Gearing - Boston Gear
Modified Stock Gearing - Boston Gear
Modified Stock Gearing - Boston Gear
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H<br />
Roller Chain Sprockets<br />
Single Strand<br />
No. 40 1/2" Pitch; Steel<br />
P.D.<br />
.284<br />
MAX.<br />
MAXIMUM DIA. OF CHAIN OVER<br />
SPROCKET = SPROCKET P.D. +.469”<br />
STANDARD TOLERANCES<br />
Dimension<br />
Tolerance<br />
Bore All ±.001<br />
Reference Pages<br />
Alterations – 316<br />
Horsepower Ratings – 260-262<br />
Lubrication – 259<br />
Materials – 316<br />
Selection Procedure – 258<br />
ANSI Diameters – 317<br />
*All sprockets have standard keyways.<br />
All sprockets have 5/16-18 setscrews<br />
located over keyway, except at 90°<br />
where marked.<br />
No.<br />
of<br />
Teeth<br />
Pitch<br />
Dia.<br />
ORDER BY CATALOG NUMBER OR ITEM CODE<br />
With Keyway Without Keyway<br />
Hub Length and Setscrew* and Setscrew<br />
Bore<br />
Dia. thru<br />
Bore<br />
Catalog Item Catalog Item<br />
Number Code Number Code<br />
TYPE B SINGLE HUB STEEL<br />
5/8 40B22-5/8 36094 40B22 15710<br />
3/4 40B22-3/4 15106<br />
7/8 40B22-7/8 36096<br />
1 40B22-1 15108<br />
22 3.513 1-1/8 2-7/8 1 40B22-1-1/8 15110<br />
1-3/16 40B22-1-3/16 15112<br />
1-1/4 40B22-1-1/4 15114<br />
1-3/8 40B22-1-3/8 36098<br />
1-7/16 40B22-1-7/16 15116<br />
1-1/2 40B22-1-1/2 56735<br />
5/8 40B23-5/8 36102 40B23 15712<br />
3/4 40B23-3/4 15118<br />
7/8 40B23-7/8 36104<br />
1 40B23-1 15120<br />
23 3.672 1-1/8 3 1 40B23-1-1/8 36106<br />
1-3/16 40B23-1-3/16 15122<br />
1-1/4 40B23-1-1/4 15124<br />
1-3/8 40B23-1-3/8 36108<br />
1-7/16 40B23-1-7/16 15126<br />
1-1/2 40B23-1-1/2 56736<br />
5/8 40B24-5/8 36110 40B24 15714<br />
3/4 40B24-3/4 15128<br />
7/8 40B24-7/8 36112<br />
1 40B24-1 15130<br />
24 3.831 1-1/8 3-1/4 1 40B24-1-1/8 15132<br />
1-3/16 40B24-1-3/16 15134<br />
1-1/4 40B24-1-1/4 15136<br />
1-3/8 40B24-1-3/8 36114<br />
1-7/16 40B24-1-7/16 15138<br />
1-1/2 40B24-1-1/2 15140<br />
5/8 40B25-5/8 36116 40B25 15716<br />
3/4 40B25-3/4 15142<br />
7/8 40B25-7/8 36118<br />
1 40B25-1 15144<br />
25 3.989 1-1/8 3-1/4 1 40B25-1-1/8 36120<br />
1-3/16 40B25-1-3/16 36122<br />
1-1/4 40B25-1-1/4 15146<br />
1-7/16 40B25-1-7/16 36124<br />
1-1/2 40B25-1-1/2 15148<br />
5/8 40B26-5/8 36126 40B26 68089<br />
3/4 40B26-3/4 68293<br />
7/8 40B26-7/8 68294<br />
1 40B26-1 68295<br />
26 4.148 1-1/8 3-1/4 1 40B26-1-1/8 68296<br />
1-3/16 40B26-1-3/16 68297<br />
1-1/4 40B26-1-1/4 68298<br />
1-7/16 40B26-1-7/16 68299<br />
1-1/2 40B26-1-1/2 68300<br />
5/8 40B27-5/8 36128 40B27 68090<br />
3/4 40B27-3/4 68301<br />
7/8 40B27-7/8 68302<br />
1 40B27-1 68303<br />
27 4.307 1-1/8 3-1/4 1 40B27-1-1/8 68304<br />
1-3/16 40B27-1-3/16 68305<br />
1-1/4 40B27-1-1/4 68306<br />
1-7/16 40B27-1-7/16 68307<br />
1-1/2 40B27-1-1/2 68308<br />
276 <strong>Boston</strong> <strong>Gear</strong> 800-825-6544 P-1930-BG 04/10
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