1/5 Pitch Timing Belt Pulleys

3/8 Belt Width       No Flanges     Aluminum

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Part #
# Grooves
Pitch Dia
Outside Dia
Overall Lg
Hub Dia 0.015
Bore +0.001 -0
Screw
# Scws
10N3706-XA
10
0.637
0.617
0.812
0.438
0.1875
6-40
1
10N3708-XA
10
"
"
"
"
0.2500
8-32
2
11N3706-XA
11
0.700
0.680
"
0.500
0.1875
6-40
1
11N3708-XA
11
"
"
"
"
0.2500
8-32
2
12N3706-XA
12
0.764
0.744
"
0.563
0.1875
6-40
1
12N3708-XA
12
"
"
"
"
0.2500
8-32
2
14N3708-XA
14
0.891
0.871
"
0.625
0.2500
"
"
14N3710-XA
14
"
"
"
"
0.3125
"
"
15N3708-XA
15
0.955
0.935
0.875
0.688
0.2500
"
"
15N3710-XA
15
"
"
"
"
0.3125
"
"
15N3712-XA
15
"
"
"
"
0.3750
10-32
"
16N3708-XA
16
1.019
0.999
"
0.750
0.2500
8-32
"
16N3710-XA
16
"
"
"
"
0.3125
"
"
17N3708-XA
17
1.082
1.062
"
0.812
0.2500
"
"
18N3708-XA
18
1.146
1.126
"
0.875
0.2500
"
"
18N3710-XA
18
"
"
"
"
0.3125
"
"
18N3712-XA
18
"
"
"
"
0.3750
10-32
"
19N3708-XA
19
1.210
1.190
"
"
0.2500
8-32
"
20N3708-XA
20
1.273
1.253
0.938
0.938
0.2500
"
"
20N3710-XA
20
"
"
"
"
0.3125
"
"
20N3712-XA
20
"
"
"
"
0.3750
10-32
"
21N3708-XA
21
1.337
1.317
"
1.000
0.2500
8-32
"
21N3710-XA
21
"
"
"
"
0.3125
"
"
22N3708-XA
22
1.401
1.381
"
1.063
0.2500
"
"
22N3710-XA
22
"
"
"
"
0.3125
"
"
22N3712-XA
22
"
"
"
"
0.3750
10-32
"
23N3708-XA
23
1.464
1.444
"
1.125
0.2500
8-32
"
24N3708-XA
24
1.528
1.508
"
1.188
0.2500
"
"
24N3710-XA
24
"
"
"
"
0.3125
"
"
24N3712-XA
24
"
"
"
"
0.3750
10-32
"
25N3708-XA
25
1.592
1.572
"
1.250
0.2500
8-32
"
25N3712-XA
25
"
"
"
"
0.3750
10-32
"
27N3710-XA
27
1.719
1.699
0.938
1.250
0.3125
8-32
2
28N3708-XA
28
1.783
1.763
"
"
0.2500
"
"
28N3710-XA
28
"
"
"
"
0.3125
"
"
28N3712-XA
28
"
"
"
"
0.3750
10-32
"
29N3710-XA
29
1.846
1.826
"
1.312
0.3125
8-32
"
30N3708-XA
30
1.910
1.890
"
1.375
0.2500
"
"
30N3710-XA
30
"
"
"
"
0.3125
"
"
30N3712-XA
30
"
"
"
"
0.3750
10-32
"
32N3710-XA
32
2.037
2.017
1.000
1.500
0.3125
8-32
"
32N3712-XA
32
"
"
"
"
0.3750
10-32
"
32N3716-XA
32
"
"
"
"
0.5000
1/4-20
"
36N3710-XA
36
2.292
2.272
"
"
0.3125
8-32
"
36N3712-XA
36
"
"
"
"
0.3750
10-32
"
36N3716-XA
36
"
"
"
"
0.5000
1/4-20
"
40N3710-XA
40
2.546
2.526
"
"
0.3125
8-32
"
40N3712-XA
40
"
"
"
"
0.3750
10-32
"
40N3716-XA
40
"
"
"
"
0.5000
1/4-20
"
42N3710-XA
42
2.674
2.654
"
"
0.3125
8-32
"
42N3712-XA
42
"
"
"
"
0.3750
10-32
"
42N3716-XA
42
"
"
"
"
0.5000
1/4-20
"
44N3710-XA
44
2.801
2.871
"
"
0.3125
8-32
"
44N3712-XA
44
"
"
"
"
0.3750
10-32
"
44N3716-XA
44
"
"
"
"
0.5000
1/4-20
"
45N3710-XA
45
2.865
2.845
"
"
0.3125
8-32
"
45N3712-XA
45
"
"
"
"
0.3750
10-32
"
45N3716-XA
45
"
"
"
"
0.5000
1/4-20
"
48N3710-XA
48
3.056
3.036
"
"
0.3125
8-32
"
48N3712-XA
48
"
"
"
"
0.3750
10-32
"
48N3716-XA
48
"
"
"
"
0.5000
1/4-20
"
50N3710-XA
50
3.183
3.163
"
"
0.3125
8-32
"
50N3712-XA
50
"
"
"
"
0.3750
10-32
"
50N3716-XA
50
"
"
"
"
0.5000
1/4-20
"
60N3712-XA
60
3.820
3.800
"
"
0.3750
10-32
"
60N3716-XA
60
"
"
"
"
0.5000
1/4-20
"
72N3712-XA
72
4.584
4.564
"
"
0.3750
10-32
"
72N3716-XA
72
"
"
"
"
0.5000
1/4-20
"