You can buy it in your hobby store.
Digital-Servo DF-1000D – 10KG waterproof
The new DF-1000D digital servos from DF Models convinces not only with a lot of power. The new XXL gearbox probably surpasses everything there has been so far in standard servo gearboxes. The gears are about 1/3 - 1/2 larger and more stable dimensioned as with standard servos (of this class/size). The axles of the gears are mounted in metal bushings, this reduces wear and ensures precise positioning accuracy every time. The digital servos also have ball bearings and are waterproof.
Affordable price - extreme performance ... the new DF-1000D digital servos!
Actuating force: 10 KG (6V) / 9,3 KG (4,8V)
Actuating time: 0,13s (6V) / 0,15s (4,8V)
Dimensions (L|W|H): 40x20x39mm
XXL - metalgear, ball bearing, waterproof
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