Will transmit with Safety.
=========+========================
Width of | Horse-Power per 100
Belt in | feet Velocity of Belt.
Inches. +---------+-------------
| Single | Double
| Belt. | Belt.
---------+---------+-------------
1 | .09 | .18
2 | .18 | .36
3 | .27 | .55
4 | .36 | .73
5 | .45 | .91
6 | .55 | 1.09
7 | .64 | 1.27
8 | .73 | 1.46
9 | .82 | 1.64
10 | .91 | 1.82
11 | 1.00 | 2.00
12 | 1.09 | 2.18
14 | 1.27 | 2.55
16 | 1.45 | 2.91
18 | 1.64 | 3.27
20 | 1.82 | 3.64
22 | 2.00 | 4.00
24 | 2.18 | 4.36
28 | 2.55 | 5.09
32 | 2.91 | 5.82
36 | 3.27 | 6.55
40 | 3.64 | 7.27
---------+---------+-------------
In the calculations for horse-power in the above
table, the belt is assumed to run about horizontally,
the semi-circumference of smaller pulley has been
considered as the ordinary arc contact of belt. Any
reduction of this contact will make approximate
proportional reduction of horse-power.