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Central Gear Box

Central Gear Box

The Central Gear Box is a high-capacity 40 kW Spiral bevel-Planetary unit engineered for heavy-duty defense automation. Featuring a precision-machined Aluminium Housing that maintains a total weight of approximately 126 kg, the assembly is designed for stable Horizontal Foot Mounted configurations across diverse tactical platforms.

The precision drive train is optimized for motor input speeds of 3500 rpm, delivering a specialized 10.08:1 actual gear ratio with an exceptional 95% efficiency. For long-term operational reliability, the system utilizes a Splash Lubrication mechanism charged with high-grade Synthetic oil (ISO VG 220), ensuring smooth torque conversion even under high service factors.

Delivering a rated input torque of 110 Nm with backlash controls refined down to 10 arc-min, this rugged unit maintains positional integrity under harsh ambient temperatures from -30°C to +55°C. Built for extreme field longevity, the mechanical architecture remains secure during stationary storage in temperatures reaching up to +70°C.

Specifications

Gear Box TypeSpiral bevel-Planetary gearbox
Input Speed3500 rpm (motor)
Input Torque110 Nm (Rated)
Ratio10.08:1 (Actual)
Power40 kW
Service Factor1.25
Efficiency95% approx.
Backlash for 3 Way Spiral Bevel Gearbox15 arc-min
Backlash for Planetary Gearbox10 arc-min
Moment of Inertia w.r.t. Input Shaft0.0033 kgm²
Weight126 kg (approx for Aluminium Housing)
MountingHorizontal Foot Mounted
LubricationSplash Oil (Synthetic oil ISO VG 220)
Ambient Temperature-30°C to +55°C (Operating), Storage -30°C to +70°C

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