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Shaft Diameter
1/8"
1/4"
3/8"
1/2"
5/8"
0.635"
3/4"
7/8"
1"
1
1/2"
3 mm
5 mm
20 mm
30 mm
40 mm
For Maximum Belt Width
1/2"
3/4"
1"
2"
3"
6 mm
9 mm
12 mm
20 mm
21 mm
30 mm
37 mm
62 mm
OD
0.8"
1"
1.4"
1
1/2"
1.8"
1.85"
2"
2.1"
2.4"
2
1/2"
2.6"
2.8"
3"
3.1"
3.25"
3.4"
3.5"
4"
4.5"
4.8"
5"
5.5"
5.6"
6"
6.3"
7"
7.5"
15 mm
90 mm
100 mm
146 mm
Pulley Type
Idler
Standard
Belt Width
7/16"
9/16"
5/8"
11/16"
13/16"
7/8"
29/32"
1
1/16"
1
1/8"
2
1/16"
3
1/16"
4
1/2"
6
1/4"
Belt Trade Size
4L
5L
A
AX
B
BX
GT
GT2
H
H8M
HTD
L
XL
Diameter
0.654"
0.872"
0.904"
1
1/8"
1.372"
1
3/8"
1.404"
1
1/2"
1.81"
1.85"
1.872"
1
7/8"
2"
2
1/8"
2
1/4"
2.31"
2.45"
2
1/2"
2
33/64"
2
19/32"
2.75"
2
31/32"
3"
3.74"
4"
4.62"
5
1/32"
5.2"
6"
12 mm
12.22 mm
79.88 mm
80.12 mm
90.07 mm
90.3 mm
130.89 mm
Material
Aluminum
Brass
Iron
Nylon
Steel
Shaft Type
Keyed
Round
ID
1/8"
1/4"
3/8"
1/2"
5/8"
0.635"
3/4"
7/8"
1"
1
1/2"
3 mm
5 mm
System of Measurement
Inch
Metric
Bearing Type
Ball
Roller
Belt Type
Flat
Round
Timing
V
Width
9/64"
5/32"
3/16"
13/64"
9/32"
9/16"
39/64"
5/8"
11/16"
45/64"
23/32"
49/64"
25/32"
51/64"
13/16"
55/64"
7/8"
15/16"
1
1/16"
1
3/32"
1
5/32"
1
7/32"
1
19/64"
1
5/16"
1
25/64"
1
7/16"
1
35/64"
1
43/64"
1
23/32"
2
7/16"
3
7/16"
5"
6
3/4"
10 mm
14 mm
16 mm
V-Belt Type
Cogged
Standard
Press-Fit Mount Type
With Hub
Without Hub
Bore Type
Finished
Plain
Number of Grooves
1
2
3
Shaft Mount Type
Press Fit
Set Screw
Slip Fit
Idler Type
Smooth
Toothed
Pitch
0.2"
0.375"
0.5"
8 mm
14 mm
Teeth Shape
Curved
Trapezoidal
REACH
Compliant
Not Compliant
DFARS Specialty Metals
Exempt
RoHS
Compliant
Export Control Classification Number (ECCN)
EAR99
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101 Products
Power Transmission
Flat Belt Idler Pulleys
Spin freely on built-in bearings to reduce wear and vibration on flat belts
31 products
Timing Belt Idler Pulleys
Add to your timing belt setup to minimize vibration and keep belts from wearing out
25 products
V-Belt Drive Pulleys
Pair with a V-belt to transfer motion from a rotating shaft
10 products
V-Belt Idler Pulleys
Spin freely on built-in bearings to reduce wear and vibration on V-belts
14 products
Round Belt Idler Pulleys
Spin freely on built-in bearings to reduce wear and vibration on round belts
21 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)