Reduction Gear Structure And Working Principles - jcb JS300 Service Manual

Reduction Gear Structure and Working Principles

Table 2. Key
A A Chamber
B B Chamber
C Torque path
Power transmitted by the hydraulic motor output shaft is
transmitted to second sun gear 77 via first sun gear 66,
planetary gear 69 and holder 65. Power is then transmitted
to output shaft 53 via second sun gear 77, planetary gear
72 and holder 76. The output shaft is constructed with an
integral pinion and is supported in gear case 58 by
bearings 57 and 62.
Due to the severe conditions under which the output shaft
operates, an oil seal 61 is provided in the centre of gear
case 58 to protect the bearings from metal waste worn
E-152
Reduction Gear Structure and Working Principles
Fig 1.
from the gears. The bearing in chamber A is lubricated with
gear oil and the bearing in chamber B with grease.
9813/5100-1
Section E - Hydraulics
Swing Gearbox
E-152