Belt Drive

Pulley ratios, belt tension, pitch and centre distance.

⚙️ Belt Drive Designer

Timing belt selection, pulley sizing, and power transmission analysis

Application Parameters

Power

Input Speed

RPM

Speed Ratio

Center Distance

Service Factor

Service Factor Guide:

1.0-1.2: Uniform load, no shock
1.2-1.5: Light shock, moderate impact
1.5-2.0: Heavy shock, frequent starts
2.0+: Extreme conditions

Belt Selection

Belt Type

Belt Width

Pulley Material

Driver Pulley Teeth

teeth

Pitch:2 mm

Max Tension:60 N/mm

Driven Pulley:60 teeth

Geometry Results

Driver Pitch Dia.

12.73 mm

Driven Pitch Dia.

38.20 mm

Belt Length

480.81 mm

Belt Teeth

241.00 teeth

Wrap Angle

172.70 °

Belt Speed

0.67 m/s

✓ Wrap angle adequate (≥120°)

Torque & Power

Input Torque

4.77 Nm

Output Torque

14.32 Nm

Output Speed

333.33 RPM

Design Torque

6.68 Nm

Efficiency

97.02 %

Output Power

485.10 W

Belt Tension Analysis

Tight Side

1050.00 N

Slack Side

315.00 N

Centrifugal

0.00 N

Total Tension

1365.00 N

Tension SF

0.26

Speed SF

120.00

⚠ Increase belt width or reduce load

✓ Speed within limits

Additional Analysis

Min. Required Width

17500.00 mm

Selected Width

6.00 mm

Belt Mass

2.27 g

Est. Life

5503.40 hrs

Driver Inertia

0.04 g⋅mm²

Driven Inertia

3.39 g⋅mm²

Speed-Torque Capacity

Belt Tension Distribution

📋 Belt Specification Summary

Belt Drive Specification
Belt Type: GT2 (GT2 (3D Printer))
Belt Width: 6 mm
Belt Length: 480.8 mm (241 teeth)

Driver Pulley:
  Teeth: 20
  Pitch Diameter: 12.73 mm
  Material: aluminum

Driven Pulley:
  Teeth: 60
  Pitch Diameter: 38.20 mm

Performance:
  Ratio: 3:1
  Input: 1000 RPM @ 4.77 Nm
  Output: 333 RPM @ 14.32 Nm
  Power: 500 W
  Efficiency: 97.0%

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