2-M12
BX24, RCK54(P)-23BX, RCK60B-23BX, LA240, BT601, WSM
TRANSAXLE
[4] DIFFERENTIAL GEAR SECTION
(1) Differential Gears
W1018746
1. During Straight Running
Rotation of the spiral bevel pinion is transmitted to the 37T spiral bevel gear (3), 10T final gear shaft (4), 66T final
gear (7) and differential case (1).
When road resistance to the right and left wheels are equal, differential pinions (2), (8) and differential side gears
(5), (9) all rotate as a unit. Both rear axles received equal input, and both wheels turn at the same speed, allowing the
tractor to go straight ahead.
At this time, differential pinions (2), (8) do not rotate around the differential pinion shaft (6).
2. During Turning
When the tractor turns, the road resistance to the inside tire increases. In other words, if one of tires slows down,
revolution difference is generated in the differential side gears (5), (9). When rotation of one differential side gear
becomes lower than the other, differential pinions (2), (8) begin rotating around differential pinion shaft (6). The other
differential side gear is increased in speed by the speed increment of differential pinion shaft (6). This means that
rotation of one rear axle is slowed down and that of the other rear axle is increased. Thus, the tractor turn smoothly
without power loss.
The combined number of revolutions of the right and left differential side gears is always twice that of the spiral
bevel gear (3). When spiral bevel gear revolution is 100 min
ï€1
(rpm), and if one of the differential side gears stops
moving, the revolution of the other differential side gear becomes 200 min
ï€1
(rpm) and if one rotates at 50 min
ï€1
(rpm),
the other rotates at 150 min
ï€1
(rpm).
(1) Differential Case
(2) Differential Pinion
(3) 37T Spiral Bevel Gear
(4) 10T Final Gear Shaft
(5) Differential Side Gear
(6) Differential Pinion Shaft
(7) 66T Final Gear
(8) Differential Pinion
(9) Differential Side Gear
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