Spur Gears - Norfolk Bearings and Supply Company, Inc.
Spur Gears - Norfolk Bearings and Supply Company, Inc.
Spur Gears - Norfolk Bearings and Supply Company, Inc.
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H<br />
Roller Chain Sprockets<br />
Single Str<strong>and</strong><br />
No. 50 5/8" Pitch; Steel<br />
P.D.<br />
.343<br />
MAX.<br />
MAXIMUM DIA. OF CHAIN OVER<br />
SPROCKET = SPROCKET P.D. + .594”<br />
STANDARD TOLERANCES<br />
Dimension 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 st<strong>and</strong>ard keyway. All<br />
sprockets have 5/16–18 setscrews<br />
located over keyway except at 90° where<br />
marked.<br />
ORDER BY CATALOG NUMBER OR ITEM CODE<br />
No.<br />
of<br />
Teeth<br />
Pitch<br />
Dia.<br />
Bore<br />
Hub<br />
Dia.<br />
Length<br />
thru<br />
Bore<br />
With Keyway<br />
& Setscrew*<br />
Catalog Item<br />
Number Code<br />
Without Keyway<br />
or Setscrew<br />
Catalog Item<br />
Number Code<br />
TYPE B SINGLE HUB STEEL<br />
5/8 50B15-5/8 36508 50B15 15812<br />
3/4 50B15-3/4 15200<br />
7/8 50B15-7/8 15202<br />
1 50B15-1 15204<br />
15 3.006 1-1/8 2-3/8 1 50B15-1-1/8 36206<br />
1-3/16 50B15-1-3/16 15208<br />
1-1/4 50B15-1-1/4 15210<br />
1-3/8 50B15-1-3/8 15212<br />
1-7/16 50B15-1-7/16* 15214<br />
1-1/2 50B15-1-1/2* 36510<br />
5/8 50B16-5/8 36512 50B16 15814<br />
3/4 50B16-3/4 15216<br />
7/8 50B16-7/8 15218<br />
1 50B16-1 15220<br />
1-1/8 50B16-1-1/8 15222<br />
16 3.204 1-3/16 2-1/2 1 50B16-1-3/16 15224<br />
1-1/4 50B16-1-1/4 15226<br />
1-3/8 50B16-1-3/8 15228<br />
1-7/16 50B16-1-7/16 15230<br />
1-1/2 50B16-1-1/2* 15232<br />
1-5/8 50B16-1-5/8* 36514<br />
5/8 50B17-5/8 36516 50B17 15816<br />
3/4 50B17-3/4 15234<br />
7/8 50B17-7/8 17150<br />
1 50B17-1 15236<br />
1-1/8 50B17-1-1/8 15238<br />
17 3.401 1-3/16 2-11/16 1 50B17-1-3/16 15240<br />
1-1/4 50B17-1-1/4 15242<br />
1-3/8 50B17-1-3/8* 15244<br />
1-7/16 50B17-1-7/16* 15246<br />
1-1/2 50B17-1-1/2* 56737<br />
1-5/8 50B17-1-5/8* 36518<br />
5/8 50B18-5/8 36520 50B18 15818<br />
3/4 50B18-3/4 15248<br />
7/8 50B18-7/8 15250<br />
1 50B18-1 15252<br />
18 3.599 1-1/8 2-7/8 1 50B18-1-1/8 36522<br />
1-3/16 50B18-1-3/16 15254<br />
1-1/4 50B18-1-1/4 15256<br />
1-3/8 50B18-1-1/4 15258<br />
1-7/16 50B18-1-7/16 15260<br />
1-1/2 50B18-1-1/2 15262<br />
5/8 50B19-5/8 36524 50B19 15820<br />
3/4 50B19-3/4 36526<br />
7/8 50B19-7/8 36528<br />
1 50B19-1 15264<br />
19 3.797 1-1/8 3 1 50B19-1-1/8 15266<br />
1-3/16 50B19-1-3/16 15268<br />
1-1/4 50B19-1-1/4 15270<br />
1-3/8 50B19-1-1/4 15272<br />
1-7/16 50B19-1-7/16 15274<br />
1-1/2 50B19-1-1/2 15276<br />
3/4 50B20-3/4 36530 50B20 15833<br />
7/8 50B20-7/8 15278<br />
1 50B20-1 15280<br />
1-1/8<br />
50B20-1-1/8 56738<br />
20 3.995<br />
1-3/16 3 1 50B20-1-3/16 15282<br />
1-1/4 50B20-1-1/4 15284<br />
1-3/8 50B20-1-1/4 15286<br />
1-7/16 50B20-1-7/16 15288<br />
1-1/2 50B20-1-1/2 15290<br />
1-5/8 50B20-1-5/8 36532<br />
280 Boston Gear 800-825-6544 P-1930-BG 04/10
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