Pulleys
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Pulleys

Pulleys and belts provide smooth, low-noise power transfer between shafts. They’re popular in indexing systems, elevators, and shooters where precise, lightweight motion is critical. Using the right pulley ratio can fine-tune speed and torque while minimizing backlash.

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Product TypeMaterialBelt WidthBorePitchTeeth Vendors
AM 24T HTD Pulley
AM 24T HTD Pulley
HTD
Black Polycarbonate
9mm
15mm
0.375" hex
0.5" hex
6mm
5mm
24
AndyMark
AM 30T HTD Pulley
AM 30T HTD Pulley
HTD
Aluminum
9mm
0.3125" w/ key
5mm
30
AndyMark
AM 39T HTD Pulley
AM 39T HTD Pulley
HTD
Black Polycarbonate
15mm
1.875" bolt circle
5mm
39
AndyMark
AM 42T HTD Pulley
AM 42T HTD Pulley
HTD
Black Polycarbonate
15mm
1.875" bolt circle
5mm
42
AndyMark
AM HV Pulley
AM HV Pulley
HV
Black Polycarbonate
51mm
0.95"
1.125"
1.875" bolt circle
12.7mm
20
AndyMark
GT2 Pulley
GT2 Pulley
GT2
Black Anodized Aluminum
9mm
0.125"
4mm
5mm
3mm
12
West Coast Products
GT2 Pulley
GT2 Pulley
GT2
GT3
Black Anodized Aluminum
9mm
0.5" hex
3mm
24
36
48
60
West Coast Products
HTD CIM Pulley
HTD CIM Pulley
HTD
Black Anodized Aluminum
9mm
0.313 w/ key
5mm
12
West Coast Products
HTD Timing Pulleys
HTD Timing Pulleys
HTD
Black Anodized Aluminum
9mm
15mm
0.5" hex
5mm
18
24
30
36
West Coast Products
RT25 1/2" Hex
RT25 1/2" Hex
RT25
Glass Filled Nylon
0.5"
1"
0.5" Hex
0.25"
16
REV Robotics
RT25 8mm
RT25 8mm
RT25
Glass Filled Nylon
0.5"
0.313 w/ key
0.25"
12
REV Robotics
RT25 MAXSpline
RT25 MAXSpline
RT25
Glass Filled Nylon
0.5"
MAXSpline
0.25"
24
32
40
48
56
64
REV Robotics
Thrifty 11T 8mm Pinion HTD
Thrifty 11T 8mm Pinion HTD
HTD
Aluminum
9mm
0.313 w/ key
5mm
11
The Thrifty Bot
Thrifty 11T SplineXS Pinion HTD
Thrifty 11T SplineXS Pinion HTD
HTD
Aluminum
9mm
15T Spline
5mm
11
The Thrifty Bot
Thrifty 15T HTD
Thrifty 15T HTD
HTD
Aluminum
9mm
0.5" Hex
5mm
15
The Thrifty Bot
Thrifty 24T HTD
Thrifty 24T HTD
HTD
Aluminum
15mm
0.5" Hex
5mm
24
The Thrifty Bot
Thrifty 36T HTD
Thrifty 36T HTD
HTD
Aluminum
15mm
0.5" Hex
5mm
36
The Thrifty Bot
Thrifty 48T HTD
Thrifty 48T HTD
HTD
Aluminum
15mm
1.125"
5mm
48
The Thrifty Bot
WCP SplineXS GT2
WCP SplineXS GT2
GT2
Aluminum
9mm
15mm
15T Spline
3mm
16
West Coast Products
WCP SplineXS HTD
WCP SplineXS HTD
HTD
Aluminum
9mm
15mm
15T Spline
5mm
12
14
16
18
West Coast Products

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Material

Belt Width

Bore

Pitch

Teeth

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