Gear Ratio Calculations For Seed Rate Motors; Gear Ratio Drawing - For Single Motor Drive - Ag Leader EDGE User Manual

G R C
EAR ATIO
The Gear Ratio is a setting that appears on the Controller Tab to users of the Stepper Seed Meter Motor
Drive. It is the ratio of the revolutions of the hydraulic drive as compared to one revolution of the seed
meter. This setting is used to determine how fast the Stepper Seed Rate Motor should operate to
achieve the proper RPM of the seed meter during planting operations.
SeedCommand users (such as those using the Stepper Seed Rate Controller) who are required to
manually enter in a Gear Ratio in the Controller Settings window should calculate this Gear Ratio based
on information provided below and on the following page. The Gear Ratio number is calculated by
multiplying all the gear ratio combinations, from the Seed Rate Drive Motor to the Seed Meter.
Note: Gear Ratio number is the number of revolutions of the motor to turn the seed meter one revolution.

Gear Ratio Drawing - For Single Motor Drive

Seed Rate Drive Setting (Calculating drive gear ratio)
• (A) Seed Rate Motor (Drive) 18 Tooth Sprocket
• (B) Planter Drive Shaft Sprocket (Driven) 29 Tooth Sprocket
# of Teeth on the Driven Sprocket
# of Teeth on the Drive Sprocket
*Each drive combination (Drive/Driven) from Seed Rate Motor Drive to Seed Meter shaft sprocket
needs to be factored for the Total Gear Ratio.
ALCULATIONS FOR
= Gear Ratio
S R M
EED ATE OTORS
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