Aline Trading Pty Ltd.

The A91 gearbox is a heavy duty 4 shaft gearbox designed for use as a centre box on cotton choppers and large rotary cutters and  incorporates 2 gear ratios: 

-          Input shaft to cross shaft = 1:1 ratio.    The cross shafts can be connected to our AL00705 (A81) gearboxes to run the outer cutters.

-          Input shaft to output cutter shaft = 1: 1.46 ratio.

Features: 

- 13/4" Z20 splined input and cross shafts.

- Sturdy construction.

- Improved output shaft seal protection ring.

- Output shaft boss for attaching the cutter head. (Welding required.)

- Tapper Roller bearings.

NOTE: GEARBOXES ARE SHIPPED WITHOUT OIL. Please fill before use.

 

SPECIFICATIONS  
 Part No
 
 Ratio    540RPM
 H.P  Torque
 AL00709  1:1 / 1:1.46  120  14006
Bearings Taper Roller
Lubricant

SAE 90 EP Gear Oil. 2.01 lt aprox.

Gearboxes are shipped without oil. Please fill before use.

Weight 74 Kg Aprox.
ROTARY CUTTER - SPEED SELECTION  
P/No   Ratio  Input   Output
 RPM 

Recommended

Yes / No

Blade Tip Speed ft/minute  
4' 4.5' 5' 6' 7'
 AL00709
1.46:1  540   Yes
9,924 11,165 12,405 14,887 17368
1000 No - - - - -

Click on the drawing below to enlarge.