Modified Stock Gearing - Boston Gear
Modified Stock Gearing - Boston Gear
Modified Stock Gearing - Boston Gear
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ORDER BY CATALOG NUMBER OR ITEM CODE<br />
No.<br />
Length<br />
With Keyway Without Keyway<br />
Pitch<br />
Hub<br />
& Setscrew* or Setscrew<br />
of<br />
Bore<br />
thru<br />
Teeth<br />
Dia.<br />
Dia.<br />
Bore Catalog Item Catalog Item<br />
Number Code Number Code<br />
TYPE B SINGLE HUB STEEL<br />
3/4 60B20-3/4 46576 60B20 15858<br />
1 60B20-1 17152<br />
1-1/8 60B20-1-1/8 46577<br />
1-3/16 60B20-1-3/16 45661<br />
1-1/4 60B20-1-1/4 15432<br />
20 4.794 1-3/8 3-7/8 1-1/4 60B20-1-3/8 46578<br />
1-7/16 60B20-1-7/16 45662<br />
1-1/2 60B20-1-1/2 15434<br />
1-9/16 60B20-1-9/16 45663<br />
1-5/8 60B20-1-5/8 45664<br />
1-3/4 60B20-1-3/4 15436<br />
1-15/16 60B20-1-15/16 46579<br />
3/4 60B21-3/4 20034 60B21 15860<br />
1 60B21-1 20040<br />
21 5.032 1-1/4 4 1-1/4 60B21-1-1/4 20132<br />
1-7/16 60B21-1-7/16 20142<br />
1-1/2 60B21-1-1/2 20846<br />
1-15/16 60B21-1-15/16 20858<br />
3/4 60B22-3/4 21550 60B22 15862<br />
1 60B22-1 21570<br />
22 5.270 1-1/4 4 1-1/4 60B22-1-1/4 45669<br />
1-7/16 60B22-1-7/16 45688<br />
1-1/2 60B22-1-1/2 45689<br />
1-15/16 60B22-1-15/16 45690<br />
3/4 60B23-3/4 45744 60B23 15864<br />
1 60B23-1 45691<br />
23 5.508 1-1/4 4 1-1/4 60B23-1-1/4 45698<br />
1-7/16 60B23-1-7/16 45699<br />
1-1/2 60B23-1-1/2 45700<br />
1-15/16 60B23-1-15/16 45702<br />
3/4 60B24-3/4 36020 60B24 15866<br />
1 60B24-1 45703<br />
24 5.746 1-1/4 4 1-1/4 60B24-1-1/4 45704<br />
1-7/16 60B24-1-7/16 45705<br />
1-1/2 60B24-1-1/2 45706<br />
1-15/16 60B24-1-15/16 45707<br />
3/4 60B25-3/4 36022 60B25 15868<br />
1 60B25-1 45745<br />
25 5.984 1-1/4 4 1-1/4 60B25-1-1/4 45711<br />
1-7/16 60B25-1-7/16 45712<br />
1-1/2 60B25-1-1/2 45713<br />
1-15/16 60B25-1-15/16 45714<br />
3/4 60B26-3/4 36024 60B26 45747<br />
1 60B26-1 45746<br />
26 6.222 1-1/4 4 1-1/4 60B26-1-1/4 45715<br />
1-7/16 60B26-1-7/16 45716<br />
1-1/2 60B26-1-1/2 45717<br />
1-15/16 60B26-1-15/16 45718<br />
3/4 60B28-3/4 36030 60B28 45720<br />
1 60B28-1 45721<br />
28 6.699 1-1/4 4 1-1/4 60B28-1-1/4 45722<br />
1-7/16 60B28-1-7/16 45734<br />
1-1/2 60B28-1-1/2 45735<br />
1-15/16 60B28-1-15/16 45736<br />
3/4 60B30-3/4 36036 60B30 16518<br />
1 60B30-1 45738<br />
30 7.175 1-1/4 4 1-1/4 60B30-1-1/4 45749<br />
1-7/16 60B30-1-7/16 45765<br />
1-1/2 60B30-1-1/2 45795<br />
1-15/16 60B30-1-15/16 45775<br />
Roller Chain Sprockets<br />
P.D.<br />
Single Strand<br />
No. 60 3/4" Pitch; Steel<br />
.459<br />
MAX.<br />
MAXIMUM DIA. OF CHAIN OVER<br />
SPROCKET = SPROCKET P.D. + .703”<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 keyway. All<br />
sprockets have 3/8–16 setscrew, located<br />
over keyway except at 90° where marked.<br />
H<br />
P-1930-BG 04/10 <strong>Boston</strong> <strong>Gear</strong> 800-825-6544 285
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