42
XTRA-GRIP CONVEYOR BELT DATA - Imperial
XTRA-GRIP rated belt tension can exceed 100%, with a maximum of 150%, during starting and stopping conditions. Fastener size recommendation may vary due to cover thickness,
pulley diameters and system tension. Consult your GTM or fastener manufacturer.
*
P/P = Poly/Poly P/N = Poly/Nylon
**
Average Permanent elongation values at 100% of rated belt tension are based on ISO 9856 test procedure. Consult your GTM or GAD for elastic & total elongation calculations.
XTRA-GRIP LOAD SUPPORT (Maximum Belt Width) (in.)
On systems with troughing idler spacing greater than 5 ft. OR idler roll gap greater than 1/2", consult your GTM.
XTRA-GRIP TROUGHABILITY (Minimum Belt Width) (in.) (Table based on ISO 703 Testing Procedure)
XTRA-GRIP MINIMUM PULLEY DIAMETERS (in.)
PIW/Plies
Material Weight
0-40
lbs/cu.ft.
41-80
lbs/cu.ft.
81-120
lbs/cu.ft.
81-120
lbs/cu.ft.
Trough Idlers
20
deg 35 deg 45 deg 20 deg 35 deg
45
deg 20 deg 35 deg
45
deg
20
deg
35
deg
45
deg
220/2
48
42
36
48
36
36
42
36
30
36
30
NR
250/2
54
48
48
48
42
36
42
42
30
36
30
NR
330/3
60
54
48
60
48
42
54
48
42
48
42
36
375/3
72
60
60
60
60
48
54
54
48
48
42
36
X T R A - G R I
P
™
If top cover and pulley cover are balanced (ie. 3/16"x3/16") or less than 1/16" differential (ie. 3/16"x5/32"), add 6" to the minimum belt width.
6"
narrower widths are possible if the belt is broken in for an extended period of time fully loaded. Consult your GTM.
Additional break in time is required when the belt has been stored prior to insulation in ambient temperatures of less than 50 degrees Fahrenheit
Above tables are based on top cover gauge equal or greater than the bottom (pulley) cover gauge.
XTRA-GRIP XTRA-GRIP XTRA-GRIP XTRA-GRIP
220/2
250/2
330/3
375/3
Number of Plies
2
2
3
3
Vulcanized & Fastener Rating (piw)
220
250
330
375
Fabric Type*
P/P
P/N
P/P
P/N
Carcass Gauge (in.)
0.120
0.129
0.162
0.169
Carcass Weight (lbs/sq.ft.)
0.72
0.76
0.98
1.01
Approx 1/32" cover wt (lbs/sq.ft.)
0.19
0.19
0.19
0.19
Avg. Permanent Elongation (%) **
0.8
0.8
0.8
0.8
Elastic modulus (piw)
23,000
30,000
34,500
45,000
Step Length (in.)
10
10
10
10
Recommended Plate Fastener
140
190
190
BR-10
Hinge
R2
R2
R2
R5
Hinge
U35A
U35A
U35A
U35
XTRA-GRIP XTRA-GRIP XTRA-GRIP XTRA-GRIP
Idlers
220/2
250/2
330/3
375/3
20
degree idlers
18
18
18
20
35
degree idlers
18
18
24
24
45
degree idlers
24
24
30
30
XTRA-GRIP XTRA-GRIP XTRA-GRIP XTRA-GRIP
Specifications
220/2
250/2
330/3
375/3
Over 80% Tension
16
16
18
18
60%
to 80% Tension
14
14
16
16
40%
to 60% Tension
10
12
12
14
Up to 40% Tension
10
12
12
14
Tails and Snubs
10
12
12
14