T-REX Torque Tube Front Drive Gear Set 19T M1.25 by Align.

Product Information

For T-REX 700, 700E, 700L, 700X, 760X, 800 Series

Material: POM

Replacement Bearing

700 Short Umbrella Front Gear - (695ZZ) 5x13x4mm - HN7068

700 Long Umbrella Torque-T Gear - (6701ZZ) 12x18x4mm - H60125

Must Use:

Helical M1 Autorotation Tail Drive Gear Set 102T - H70G012XXW

Specifications

Front Drive Gear Assembly x 1 (M1/23T) (5x7.8x53mm)

Short Umbrella Gear x 1 (M1.25/19T)

Long Umbrella Gear x 1 (M1.25/19T)

Bearing (6706ZZ) x 2 (12x18x4mm)

Tail Drive Gear Spacer (0.3) x 1 (12x15x0.3mm)

T-REX 700 Tail Drive Gear Ration with Main Rotor Head Speed Table

Main Blades	Tail Blade	RPM approx.	Tail Drive Gear	Front Drive Gear	Drive Gear Ratio
700	106	2150 ~ 2200 RPM	102T	H70G001NX 23T M1 Red HE1G005XX 19T M1.25 Blue	8.46/1/4.43
700	106	2000 ~ 2150 RPM	104T	H70G001BX 22T Red	8.46/1/4.73
700	106	< 2000 RPM	105T	H70G013XX 20T Red	8.46/1/5.25
For your safety, DO NOT exceed 2200 RPM or increase RPM beyond charts recommendations for Tail Gearing as this may result in damage to the helicopter, or the property of others.