Introduction to Products

Steering Gears

Wide Angle Piston Type Steering Gear

Production of this Product has already been discontinued.

Wide Angle Piston Type Steering Gear

Outline

  • A Solenoid Valve Operated Wide Angle Electro-Hydraulic Steering Gear (JH Steering Gear) is capable of steering a rudder to such wide angle as 70° port and 70° starboard, and is optimum for making a Schilling Rudder exhibit its specific character.
  • A JH Steering Gear has performance accordant with torque requirement of Schilling Rudders.
  • A JH Steering Gear employs hydraulic pumps of constant discharge, inscribing gear type, and hydraulic cylinders of double-acting piston type.
  • The Steering Gear is controlled by solenoid operated valves, and hence construction is extremely simple and operation is easy.
  • The Steering Gear is compactly designed, and excellent in terms of high control accuracy and good respond ability.
  • The Steering Gear is so constituted that an installation error can be absorbed by spherical bearings adopted for joint parts.
  • The Steering Gear has been approved by major Classification Societies.
  • The Steering Gears have been installed on board of variety of ships, and gain public favor.
  • The Steering Gears can be easily connected to any steering system and automated system, and operate very efficiently.

Hydraulic Circuit

Hydraulic Circuit
  • ①Hydraulic Cylinder
  • ②Tiller
  • ③Hydraulic Pump
  • ④Solenoid Operated Control Valve
  • ⑤Relief Valve
  • ⑥Pilot Operated Check Valve
  • ⑦Filter
  • ⑧Shut-off Valve
  • ⑨Oil Tank

General Arrangement

General Arrangement General Arrangement
  • ①Hydraulic Cylinder
  • ②Piston Rod
  • ③Tiller
  • ④Key
  • ⑤Anchoring Bracket

Specifications

Model JH3 JH7 JH10 JH12 JH17 JH22 JH30
Torque at angle of 40° t-m 3 7 10 12 17 22 30
Max.rudder angle Degree 70°×2
Rudder speed Sec 18/35°-30°（28/35°-30°）
Radius of Tiller mm 270 360 470 630
Piston diameter mm 100 140 160 180
Piston rod dia mm 65 85 90 100
Rated hyd. pressure Kgf/cm2 170 160 168 148 168 188 168
Relieving pressure Kgf/cm2 220 200 210 185 210 235 210
Motor Normally 1 pump kW 3.7 5.5 7.5 7.5 11 15 18.5
Normally 2 pumps 2.2 2.2 3.7 3.7 5.5 7.5 11
Width mm 360 480 670 840
Length mm 1255 1355 1590 1735 2040 2185 2700
Remarks:
  • ※Each torque designated in the table is on the basis of the value at 40° rudder angle.
  • ※The larger gear of more than 30t-m are also available on request.