Page 14 - ThermoidPowerTransnmissionBeltsBrochure(HBDTHE-18770)

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GRIP-TITE TIMING BELTS
Pitch
Pitch
Length
Code
No.
of
Teeth
Pitch
Length
Code
No.
of
Teeth
60XL
30
160XL
80
70XL
35
170XL
85
80XL
40
180 XL
90
90XL
45
190XL
95
Vs"
XL
100XL
50
200 XL
100
Extra
110XL
55
210XL
105
Light
120XL
60
220 XL
110
130XL
65
230 XL
115
140XL
70
240 XL
120
150XL
75
250 XL
125
260 XL
130
Designed originally for operations involving timing and
synchronization, timing belts have proved capable of trans­
mitting power and performing other operational functions.
Grip-Tite timing belts function like timing chains or gears
with great success
on
machines with such extremes in
service requirements
as
electric typewriters, rugged pug
mills, gasoline pumps, mud pumps, bakery machinery, lake
dredges-BUT all positive and accurate in all their timing.
Loading capacities of timing belt drives range from
fractional horsepower
to
over 600 horsepower. Their torque
loads range from thousands of foot-pounds
to
loads in
inch-ounces. They have
a
high horsepower-to-weight ratio.
The precision-molded teeth of Grip-Tite timing belts
function like
a
timing chain or gears. Positive engagement
with the mating axial grooves
on
the pulleys occurs in
a
smooth, rolling manner providing negligible friction.
There is
no
take-up or slippage. No metal-to-metal
contact
is present
so no
lubrication or oil-retaining devices are
required. Reduced bearing loads are achieved because there
is less friction and reduced tension requirements with
Grip-Tite timing belts. There is Virtually
no
backlash. These
efficient timing belts often outperform precision gear drives.
These belts are versatile in application.
Space
requirements
can
be greatly reduced with Grip-Tite timing belts, which
permit use of small pulleys, short centers, narrow belts and
high capacity.
Timing belts are made in six stock pitches. On the belt, pitch is the
distance between tooth centers and is measured on the pitch line
of the belt On the pulley, pitch is the distance between groove
centers and is measured on the pulley's pitch Circle
The pitch line of a timing belt is located Within the cable tension
member. The pitch circle of a timing belt pulley coincides with the
pitch line of the belt mating with it. The pulley's pitch diameter is
always greater than its face diameter.
To facilitate selection, ordering and Identification of timing belts,
the designations have been standardized Each stock pitch is
Identified by Its code letter-such as H or XH. 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.
Timing belts are marked In this manner
220XL025
Width and Width Code: 1J4'-025, %"-037.
Pitch
Pitch
Length
Code
No.
of
Teeth
Pitch
Length
Code
No.
of
Teeth
3/8 "
L
Light
Duty
124 L
150 L
187 L
210 L
225 L
240 L
255 L
270 L
285 L
300 L
33
40
50
56
60
64
68
72
76
80
322 L
345 L
367 L
390 L
420 L
450 L
480 L
510 L
540 L
600 L
86
92
98
104
112
120
128
136
144
160
Width and Width Code: '/2"-050, %"-075, 1"-100.
Pitch
Pitch
Length
Code
No.
of
Teeth
Pitch
Length
Code
No.
of
Teeth
240H
48
600 H
120
270H
54
630 H
126
300 H
60
660 H
132
330 H
66
700 H
140
360 H
72
750 H
150
1,12"
H
390 H
78
800 H
160
Heavy
420 H
84
850 H
170
Duty
450 H
480 H
90
96
900 H
1000 H
180
200
510 H
102
1100 H
220
540 H
101;!
1250 H
250
570 H
114
1400 H
280
1700 H
340
Width and Width Code: %"-075, 1"-100,
1'12"-150,
2"-200, 3"-300.
Pitch
Pitch
Length
Code
No.
of
Teeth
Pitch
Length
Code
No.
of
Teeth
%"XH
Extra
Heavy
Duty
507 XH
560XH
630XH
700XH
770XH
840XH
58
64
72
80
88
96
980XH
1120 XH
1260 XH
1400XH
1540 XH
1750XH
112
128
144
160
176
200
Width and Width Code: 2"-200, 3"-300, 4"-400.
XL
Pitch
Pitch
Length
Code
No.
of
Teeth
Pitch
Length
Code
No.
of
Teeth
1%"
XXH
Double
Extra
Heavy
700XXH
800XXH
900XXH
1000 XXH
56
64
72
80
1200XXH
1400XXH
1600XXH
1800XXH
96
112
128
144
Width and Width Code: 2"-200, 3"-300, 4"-400, 5"-500.
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