Modified Stock Gearing - Boston Gear

Roller Chain Sprockets
Single Strand
No. 80 1" Pitch; Steel
ORDER BY CATALOG NUMBER OR ITEM CODE
No.
Length
With Keyway Without Keyway
Pitch
Hub
& Setscrew* or Setscrew
of
Bore
thru
Teeth
Diameter
Dia.
Bore Catalog Item Catalog Item
Number Code Number Code
TYPE B SINGLE HUB STEEL
1 80B18-1 46509 80B18 15890
1-1/4 80B18-1-1/4 46510
1-3/8 80B18-1-3/8 46511
1-7/16 80B18-1-7/16 46512
18 5.759 1-1/2 4-1/4 1-1/2 80B18-1-1/2 46513
1-9/16 80B18-1-9/16 63816
1-5/8 80B18-1-5/8 63820
1-3/4 80B18-1-3/4 63903
1-15/16 80B18-1-15/16 46514
2 80B18-2 63905
1 80B19-1 63911 80B19 15892
1-1/4 80B19-1-1/4 63912
1-7/16 80B19-1-7/16 63935
1-1/2 80B19-1-1/2 63936
19 6.076 1-5/8 4-1/4 1-1/2 80B19-1-5/8 63951
1-3/4 80B19-1-3/4 63953
1-15/16 80B19-1-15/16 63954
2 80B19-2 63955
2-7/16 80B19-2-7/16 63956
1 80B20-1 21968 80B20 15892
1-1/4 80B20-1-1/4 63962
1-7/16 80B20-1-7/16 63963
1-1/2 80B20-1-1/2 63964
20 6.076 1-5/8 4-1/4 1-1/2 80B20-1-5/8 63965
1-3/4 80B20-1-3/4 63966
1-15/16 80B20-1-15/16 63967
2 80B20-2 63969
2-7/16 80B20-2-7/16 63970
21 6.710 1 4-1/4 1-3/4 — — 80B21 15896
22 7.027 1 4-1/4 1-3/4 — — 80B22 15898
23 7.344 1 4-1/4 1-3/4 — — 80B23 16544
24 7.661 1 4-1/4 1-3/4 — — 80B24 16546
25 7.979 1 4-1/4 1-3/4 — — 80B25 16548
26 8.296 1-1/4 4-3/4 2 — — 80B26 16550
30 9.567 1-3/16 4-3/4 2 — — 80B30 16552
36 11.474 1-3/16 4-3/4 2 — — 80B36 16556
40 12.745 1-3/16 4-3/4 2 — — 80B40 16558
48 15.290 1-1/4 4-3/4 2 — — 80B48 16562
60 19.107 1-1/4 5-1/4 2 — — 80B60 16566
P.D.
MAXIMUM DIA. OF CHAIN OVER
SPROCKET = SPROCKET P.D. + .875”
STANDARD TOLERANCES
Dimension
Tolerance
Bore All ±.001
Reference Pages
.575
MAX.
Alterations – 316
Horsepower Ratings – 260-262
Lubrication – 259
Materials – 316
Selection Procedure – 258
ANSI Diameters – 317
H
*All sprockets have standard keyway. All
sprockets have 3/8–16 setscrew, located
over keyway.
P-1930-BG 04/10 Boston Gear 800-825-6544 289