HITEC HS-311 STD SERVO 3kgThe HS-311 sport servo provides the novice modeler all the performance and reliability you would expect to find in a more expensive servo. Combined with precise resin gears and SMT circuitry, the HS-311 represents a remarkable value in today's R/C market. Detailed Specifications Motor Type:3 Pole Bearing Type:Nylon Speed:0.19 / 0.15 sec @ 60 deg. Torque:42 / 48.6 oz.in (4.8v/6v) 3.0 / 3.5 kg.cm Size:1.57" x 0.78" x 1.43" 40.00 x 20.00 x 36.50mm Weight:1.51oz43.00g