2772808 ENGINE AR-COMPLETE Caterpillar parts
C15
Rating:
Alternative (cross code) number:
CA2772808
277-2808
2772808
CA2772808
277-2808
2772808
TRUCK ENGINE,
Compatible equipment models: 2772808:
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Information:
Construction
Illustration 1 g02795515
Final drive
(1) Travel motor
(2) Final drive
(3) Bearing
(4) Housing / ring gear
(5) Planetary gears
(6) Sun gear
(7) Planetary carrier
(8) Planetary gears
(9) Sun gear
(10) Cover Travel motor (1) is mounted to final drive (2). The motor shaft of the travel motor rotates the final drive in order to travel the machine. Housing / ring gear (4) of the final drive is used to rotate the drive sprocket. Rotation of the drive sprocket rotates the track in order to travel the machine.The final drive reduces the rotational speed of travel motor (1). As the rotational speed is reduced, the torque is increased. The increase of torque is transmitted to the travel operation of the machine.The output shaft of travel motor (1) is splined to sun gear (9). When the output shaft rotates, sun gear (9) rotates at the same speed as the motor shaft.Final drive (2) has two gear sets. The gear sets act as gear reductions. These stages are:
First stage gear reduction
Second stage gear reductionThe first stage gear reduction includes housing / ring gear (4), planetary carrier (7), planetary gears (8) and sun gear (9). Planetary gears (8) rotate inside of housing / ring gear (4). Sun gear (9) rotates planetary gears (8). The planetary gears (8) spin on shafts that are fixed to planetary carrier (7).The second stage gear reduction includes housing / ring gear (4), planetary gears (5) and sun gear (6). Planetary gears (5) rotate inside of housing / ring gear (4). Sun gear (6) is splined to planetary carrier (7) and rotates planetary gears (5).Gear Reduction
Illustration 2 g02795517
Schematic of the gear train
(1) Travel motor
(4) Housing / ring gear
(5) Planetary gears
(6) Sun gear
(7) Planetary carrier
(8) Planetary gears
(9) Sun gear
(11) Travel motor case As sun gear (9) rotates, planetary gears (8) rotate around housing / ring gear (4). Planetary carrier (7) rotates in the same direction as sun gear (9) at a lower speed.As sun gear (6) rotates, planetary gears (5) rotate. Planetary gears (5) spin on shafts that are fixed to travel motor housing (11). The rotation of planetary gears (5) causes housing / ring gear (4) to rotate. Housing / ring gear (4) rotates at a further reduced speed and in the opposite direction as sun gear (6).The reduction from sun gear (9) to sun gear (6) is the first reduction. The reduction from sun gear (6) to housing / ring gear (4) is the second reduction.
Illustration 1 g02795515
Final drive
(1) Travel motor
(2) Final drive
(3) Bearing
(4) Housing / ring gear
(5) Planetary gears
(6) Sun gear
(7) Planetary carrier
(8) Planetary gears
(9) Sun gear
(10) Cover Travel motor (1) is mounted to final drive (2). The motor shaft of the travel motor rotates the final drive in order to travel the machine. Housing / ring gear (4) of the final drive is used to rotate the drive sprocket. Rotation of the drive sprocket rotates the track in order to travel the machine.The final drive reduces the rotational speed of travel motor (1). As the rotational speed is reduced, the torque is increased. The increase of torque is transmitted to the travel operation of the machine.The output shaft of travel motor (1) is splined to sun gear (9). When the output shaft rotates, sun gear (9) rotates at the same speed as the motor shaft.Final drive (2) has two gear sets. The gear sets act as gear reductions. These stages are:
First stage gear reduction
Second stage gear reductionThe first stage gear reduction includes housing / ring gear (4), planetary carrier (7), planetary gears (8) and sun gear (9). Planetary gears (8) rotate inside of housing / ring gear (4). Sun gear (9) rotates planetary gears (8). The planetary gears (8) spin on shafts that are fixed to planetary carrier (7).The second stage gear reduction includes housing / ring gear (4), planetary gears (5) and sun gear (6). Planetary gears (5) rotate inside of housing / ring gear (4). Sun gear (6) is splined to planetary carrier (7) and rotates planetary gears (5).Gear Reduction
Illustration 2 g02795517
Schematic of the gear train
(1) Travel motor
(4) Housing / ring gear
(5) Planetary gears
(6) Sun gear
(7) Planetary carrier
(8) Planetary gears
(9) Sun gear
(11) Travel motor case As sun gear (9) rotates, planetary gears (8) rotate around housing / ring gear (4). Planetary carrier (7) rotates in the same direction as sun gear (9) at a lower speed.As sun gear (6) rotates, planetary gears (5) rotate. Planetary gears (5) spin on shafts that are fixed to travel motor housing (11). The rotation of planetary gears (5) causes housing / ring gear (4) to rotate. Housing / ring gear (4) rotates at a further reduced speed and in the opposite direction as sun gear (6).The reduction from sun gear (9) to sun gear (6) is the first reduction. The reduction from sun gear (6) to housing / ring gear (4) is the second reduction.