Reduction Gear Turbine for Cargo Oil Pump ENV-116G

Type ENV-116G Turbine for Cargo Oil Pump, Reduction Gear

1. General

• This reduction gear is designed high reduction ratio and the pinion shaft end fits a turbine rotor in order to obtain high efficiency and economy of space.

2. Gear Casing

• These are made of close-grained cast iron and divided in the vertical plane through the axis of the pinion and wheel.
• The rear casing of the turbine is bolted on the rear gear casing. The rear gear casing is mounted on the bedplate and lub. Oil drains out to the bedplate.

3. Gear Wheel and Pinion

• The pinion is made from Ni-Cr-Mo steel, and the gear wheel is made from forged steel, and these are carefully heat-treated.
• The gear wheel is pressed on the gear shaft and secured with keys. The one end of the wheel shaft is connected with the load by the coupling through intermediate shaft and another end drives a oil pump and a tachometer through a drive gear.
• The gear and pinion teeth are of the involute single herical type and precisely machined.
• The pinion end thrust bearing of michell type supports against the thrust force.

4. Bearing

• The pinion and gear journal bearings is steel back lined with white metal and split in the vertical plane of the centerline to from bearing halves.
• The pinion bearings and two gear bearings is fitted gear casing rearby bearing cover with bolts firmly.
• The luch of bearing prevents to rotate and remove toward axis. Lubricating oil for bearings is supplied through the hole of the gear casing rear.
• Thrust force of pinion is supported by michell type, and the gear wheel position is by plen thrust bearing and liners.