Page 15 - ThermoidPowerTransnmissionBeltsBrochure(HBDTHE-18770)

DUALTIMING BELTS
Available Width and Width Code: 1/4 "-025, %"-037.
Dual Timing belts are built with teeth on both sides of the
belt. The inside teeth are positioned directly over the outside
teeth. The backside is ground from a fiber-reinforced, special
rubber compound. Teeth with nylon facing should always
be on a driven pulley. The summation of the driven loads
cannot exceed the horsepower ratings at the driver pulley.
Pitch
Pitch
Length
Code
No.
of
Teeth
Pitch
Length
Code
No.
of
Teeth
Vs" XL
Extra
Light
o 60XL
o 70XL
o 80XL
o 90XL
0100 XL
0110 XL
0120 XL
0130XL
0140 XL
0150XL
30
35
40
45
50
55
60­
65
70
75
0160XL
0170XL
0180XL
0190 XL
0200 XL
0210 XL
0220 XL
0230 XL
0240 XL
0250 XL
0260 XL
80
85
90
95
100
105
110
115
120
125
130
......1---- Belt Direction
For example assuming the driver pulley and belt are capable of trans·
mitting 1 horsepower; .55 hp can be transmitted from the inside teeth to
pulley (A) and .45 hp can be transmitted by the outside teeth to pulley (8)
for a total of 1 hp, the rated capacity of the driver pulley. Power takeoff on
the backside is limited to 50% of the total catalog rating. Total belt rating is
the same as for slngle,slded belts.
Designation of Standard Pitches
To facilitate selection, ordering and Identification of Dual Timing
belts, the designations have been standardized Each stock
pitch IS Identified by its code letter-such as XL, Lor H.
ThiS letter represents not only a particular pitch, but also the
belts construction for that particular pitch, the number and
diameter of the cable tension member, the thickness and type
of the facing material, the rubber compounds used.
MINI-PITCH TIMING BELTS
Available Width and Width Code: %"-050, %"-075, 1"-100.
Pitch
Pitch
Length
Code
No.
of
Teeth
Pitch
Length
Code
No.
of
Teeth
3/8" L
Light
Duty
0124 L
0150 L
0187L
0210 L
0225 L
0240 L
0255 L
0270 L
0285 L
0300 L
33
40
50
56
60
64
68
72
76
80
0322 L
0345 L
0367 L
0390 L
0420 L
0450 L
0480 L
0510 L
0540 L
0600 L
86
92
98
104
112
120
128
136
144
160
Available Width and Width Code: %"-075, 1"-100, 1 1/ 2"-150, 2"-200,
3"-300.
Pitch No.
..
Pitch Length of
Code Teeth
%"H
Heavy
Duty
0240 H 48
0270H 54
0300 H 60
0330H 66
0360 H 72
0390H 78
0420H 84
0450H 90
0480H 96
0510 H 102
0540 H 108
0570 H 114
0600 H 120
0630 H 126
0660 H 132
Pitch No.
Length of
Code Teeth
o 700 H 140
o 750 H 150
o 800 H 160
o 850 H 170
o 900 H 180
01000 H 200
01100H 220
01250 H 250
01400 H 280
01700 H 340
Mini-Pitch timing belts are designed for a wide range of
synchronous applications in the business machine and
computer industry. Limited space and extremely light loads
make these belts an excellent design alternative on these
miniature drives. Many applications which have previously
been "over-designed" to utilize standard pitches can now be
matched to an appropriate capacity Mini-Pitch belt.
Contact Elgin jar availability.
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