Kubota B1830 Workshop Manual page 328

B1830,B2230,B2530,B3030, WSM
1. STRUCTURE
[1] 4 WHEEL DRIVE MODEL
(1) Axle
(2) Axle Flange
(3) Bevel Gear (41T)
(4) Bevel Gear (16T)
(5) Bevel Gear Case
The front axle of the 4WD is constructed as shown above. Power is transmitted from the transmission through the
propeller shaft (15) to the spiral bevel pinion shaft (16), then to the spiral bevel gear (11) and to the differential side
gear (9).
The power through the differential side gear (9) is transmitted to the differential yoke shaft (7), (12), and to the
bevel gear shaft (17) through the bevel gears (4), (6) in the bevel gear case (5).
The revolution is greatly reduced by the bevel gears (3), then the power is transmitted to the axle (1).
The differential system allows each wheel to rotate at a different speed to make turning easier.
(6) Bevel Gear (11T)
(7) Differential Yoke Shaft, L.H.
(8) Front Axle Case
(9) Differential Side Gear (14T)
(10) Differential Pinion Gear (10T)
(11) Spiral Bevel Gear (20T)
(12) Differential Yoke Shaft, R.H.
(13) Front Axle Bracket, Rear
(14) Coupling
(15) Propeller Shaft
6-M1
FRONT AXLE
(16) Spiral Bevel Pinion Shaft
(11T)
(17) Bevel Gear Shaft (7T)
(18) Front Gear Case
(19) Collar
9Y1210003FBM0001US0
KiSC issued 05, 2012 A