PowerGrip® GT® Belt Drives

PowerGrip ® Timing Belt Drives
Pulley Specification Tables –
MXL and XL Pulleys
MXL (.080 in) PowerGrip Timing Belt Pulleys for 1/8 in., 3/16 in. and 1/4 in. Wide Belts
No. Pitch Outside Flange Nominal Dimensions (in) Stock
Pulley of Diameter Diameter Diameter Bore
Designation Grooves Type (in) (in) (in) E L H F Material (in)
10MXL025 10 6FC .255 .235 .425 - .565 .425 .330 AL 1/8
11MXL025 11 6FC .280 .260 .450 - .565 .450 .330 AL 1/8
12MXL025 12 6FC .306 .286 .480 - .565 .480 .330 AL 1/8
14MXL025 14 6FC .357 .337 .530 - .565 .530 .330 AL 1/8
15MXL025 15 6FC .382 .362 .555 - .565 .555 .330 AL 3/16
16MXL025 16 6FC .407 .387 .580 - .565 .580 .330 AL 3/16
18MXL025 18 6F .458 .438 .635 .236 .625 .312 .389 AL 3/16
20MXL025 20 6F .509 .489 .685 .236 .625 .364 .389 AL 3/16
21MXL025 21 6F .535 .515 .710 .236 .625 .390 .389 AL 3/16
22MXL025 22 6F .560 .540 .740 .236 .625 .390 .389 AL 3/16
24MXL025 24 6F .611 .591 .790 .298 .687 .442 .389 AL 1/4
28MXL025 28 6F .713 .693 .895 .298 .687 .494 .389 AL 1/4
30MXL025 30 6F .764 .744 .945 .298 .687 .546 .389 AL 1/4
32MXL025 32 6F .815 .795 1.000 .298 .687 .598 .389 AL 1/4
36MXL025 36 6F .917 .897 1.105 .298 .687 .676 .389 AL 1/4
40MXL025 40 6F 1.019 .999 1.210 .313 .718 .754 .405 AL 1/4
42MXL025 42 6F 1.070 1.050 1.260 .313 .718 .806 .405 AL 1/4
44MXL025 44 6F 1.120 1.100 1.315 .313 .718 .858 .405 AL 1/4
48MXL025 48 6F 1.222 1.202 1.420 .313 .718 .936 .405 AL 1/4
60MXL025 60 6F 1.528 1.508 1.730 .313 .718 1.222 .405 AL 1/4
72MXL025 72 6 1.833 1.813 - .375 .750 1.195 .375 AL 1/4
80MXL025 80 6 2.037 2.017 - .375 .750 1.500 .375 AL 5/16
NOTE: 10 through 16 teeth pulleys have 1 set screw; 18 through 72 teeth pulleys have 2 set screws at 90 degrees.
XL (.200 in) PowerGrip Timing Belt Pulleys for 1/4 in. and 3/8 in. Wide Belts (Face Width, F = 9/16 in)
No. Pitch Outside Flange Nominal Dimensions (in) Plain Bore* (in) Avg.
Pulley of Diameter Diameter Diameter Wt.
Designation Grooves Type (in) (in) (in) E L H Material Min. Max. (lb)
10XL037 10 6F 0.637 0.617 .938 .250 .813 .438 AL 3/16 3/16 .04
11XL037 11 6F 0.700 0.680 .938 .250 .813 .438 AL 3/16 3/16 .04
12XL037 12 6F 0.764 0.744 1.000 .250 .813 .500 AL 3/16 1/4 .04
14XL037 14 6F 0.891 0.871 1.125 .250 .813 .563 AL 1/4 1/4 .05
15XL037 15 6F 0.955 0.935 1.188 .250 .813 .625 AL 1/4 5/16 .06
16XL037 16 6F 1.019 0.999 1.250 .250 .813 .688 AL 1/4 3/8 .06
18XL037 18 6F 1.146 1.126 1.375 .250 .813 .813 AL 1/4 1/2 .08
20XL037 20 6F 1.273 1.253 1.500 .344 .906 .938 AL 1/4 9/16 .10
21XL037 21 6F 1.337 1.317 1.563 .344 .906 .938 AL 1/4 9/16 .11
22XL037 22 6F 1.401 1.381 1.625 .344 .906 1.000 AL 1/4 5/8 .12
24XL037 24 6F 1.528 1.508 1.750 .344 .906 1.063 AL 1/4 11/16 .13
28XL037 28 6F 1.783 1.763 2.000 .344 .906 1.188 AL 1/4 13/16 .13
30XL037 30 6F 1.910 1.890 2.125 .344 .906 1.375 AL 5/16 15/16 .13
32XL037 32 6 2.037 2.017 - .438 1.000 1.500 AL 5/16 1 .13
36XL037 36 6 2.292 2.272 - .438 1.000 1.500 AL 5/16 1 .19
40XL037 40 6 2.546 2.526 - .438 1.000 1.500 AL 5/16 1 .25
42XL037 42 6 2.674 2.654 - .438 1.000 1.500 AL 5/16 1 .31
44XL037 44 6 2.801 2.781 - .438 1.000 1.500 AL 5/16 1 .38
48XL037 48 6 3.056 3.036 - .438 1.000 1.500 AL 5/16 1 .38
60XL037 60 6 3.820 3.800 - .438 1.000 1.500 AL 3/8 1 .38
72XL037 72 6 4.584 4.564 - .438 1.000 1.500 AL 3/8 1 .44
*Plain bore style stocked in smallest bore.
NOTE: All pulleys have 2 set screws at 90 degrees.
NOTE: See Synchronous Belt Drives — Sprocket Specifications sections for a complete table of stock and non-stock pulley diameters.
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