CH vs CV vs GH vs GV – How to Choose the Right Gear Motor for Your Application
CH vs CV vs GH vs GV – How to Choose the Right Gear Motor for Your Application
With four series sharing similar power and ratio ranges, selecting the right one can be challenging. Use this quick decision matrix to narrow down your choice.
Decision Flowchart
Step 1 – Mounting Orientation
Horizontal (floor) → CH (standard) or GH (heavy)
Vertical (flange) → CV (standard) or GV (heavy)
Step 2 – Load Severity
Moderate, intermittent loads → CH or CV (aluminum housing, cost-effective)
Heavy, continuous, shock loads → GH or GV (cast iron, rugged)
Step 3 – Environmental Conditions
Clean, indoor → any series
Dusty, hot, wet → prefer GH/GV (IP55 option, better cooling)
Step 4 – Shaft Accessories
Need dual output? → choose CHD, CVD, GHD, GVD
Using your own motor? → choose CHM, CVM, GHM, GVM
Comparison Table
| Criteria | CH | CV | GH | GV |
|---|---|---|---|---|
| Mounting | Horizontal | Vertical | Horizontal | Vertical |
| Housing | Aluminum | Aluminum | Cast iron | Cast iron |
| Torque capacity | Up to 1500 N.m | Up to 1500 N.m | Up to 1500 N.m | Up to 1500 N.m |
| Shock load | Moderate | Moderate | High | High |
Quick Model Number Reference
| Your need | Choose model prefix |
|---|---|
| Horizontal, budget | CH + shaft dia + power + ratio |
| Vertical, budget | CV + shaft dia + power + ratio |
| Horizontal, heavy-duty | GH + shaft dia + power + ratio |
| Vertical, heavy-duty | GV + shaft dia + power + ratio |
Still not sure? Contact our application engineers – we’ll ask you a few simple questions about your load, speed, and duty cycle, and recommend the exact model with a free dimension drawing.