PowerGrip® GT® Belt Drives

Micro-V Belt Drives
Standard Micro-V
Belt Lengths and
Widths
Stock belts are defined by the number of ribs and
belt effective lengths specified in Tables 29 and 30,
respectively. The line of stock belts available in this
manual were chosen specifically to cover the widest
possible range of applications.
Table 29 – Stock Rib Widths –
**Available in 4 or 6 rib combinations only.
J Cross Section
No. Ribs Nom. Width No. Ribs Nom. Width
(Bb) (in) (Bb) (in)
4 0.368 16 1.472
6 0.552 20 1.840
10 0.920
Table 30 – Standard Belt Effective Lengths – J Cross Section
Permissible
Deviation
Standard Effective From
Length Length Standard
Designation (in) Length (in)
180** 18.0 +0.2 -0.2
190** 19.0 +0.2 -0.2
200** 20.0 +0.2 -0.2
220 22.0 +0.2 -0.2
230 23.0 +0.2 -0.2
240 24.0 +0.2 -0.2
260 26.0 +0.2 -0.2
280 28.0 +0.2 -0.2
300 30.0 +0.2 -0.3
320 32.0 +0.2 -0.3
330 33.0 +0.2 -0.3
340 34.0 +0.2 -0.3
360 36.0 +0.2 -0.3
380 38.0 +0.2 -0.3
400 40.0 +0.2 -0.4
420 42.0 +0.2 -0.4
***Available in 4 or 6 rib combinations only.
***Available up to 10 ribs only.
Permissible
Deviation
Standard Effective From
Length Length Standard
Designation (in) Length (in)
430 43.0 +0.2 -0.4
440 44.0 +0.2 -0.4
460 46.0 +0.2 -0.4
480 48.0 +0.2 -0.4
490 49.0 +0.2 -0.4
500 50.0 +0.2 -0.4
520 52.0 +0.2 -0.4
550 55.0 +0.2 -0.4
580 58.0 +0.2 -0.5
610 61.0 +0.2 -0.5
650 65.0 +0.2 -0.5
730 73.0 +0.3 -0.6
870 87.0 +0.3 -0.7
920*** 92.0 +0.4 -0.7
980*** 98.0 +0.4 -0.8
Table 31 – Standard Pulley Diameters – J Cross
Outside
Diameter
No. of Grooves
(in) 6 10 16
1.50 X - -
1.60 X - -
1.70 X - -
1.80 X - -
1.90 X - -
2.00 X X -
2.12 X X -
2.24 X X -
2.36 X X -
2.50 X X X
2.65 X X X
Outside
Diameter
No. of Grooves
(in) 6 10 16
2.80 X X X
3.00 X X X
3.15 X X X
3.35 X X X
4.50 X X X
6.00 X X X
8.00 X X X
10.60 X X X
14.00 X X X
19.00 X X X
NOTE: Check with Customer Service for availability. Additional sizes available on a made-to-order basis.
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