• 7Y1427 7Y-1427 Planetary Gear Excavator Final Drive Fitting For 318B 320 L 320B 320N

• Specification

• Function

1.Speed Reduction and Torque Increase: It can reduce the input rotational speed and increase the output torque. By utilizing the meshing relationship among the sun gear, planetary gears, and ring gear, different transmission ratios can be obtained. According to the principle of gear transmission, when the power is input from the sun gear and output from the planetary carrier with the ring gear fixed, a reduction - speed and torque - increasing effect can be achieved, meeting the requirement of low - speed and high - torque during the excavator's operation, such as in digging and lifting operations.

2.Power Shunt: The planetary gear can distribute the power from the engine to multiple planetary gears. These planetary gears share the load together, which makes the force on the main shaft balanced. This not only enhances the bearing capacity of the gear system but also is beneficial to improving the reliability and service life of the gear system, enabling the excavator to stably transmit power under heavy - load working conditions.

• Applicable models

EXCAVATOR 318B 320 L 320B 320N

• More gear parts supplied to C A T machine

• Catalog part list

• Other hot selling parts

1.Final drive: Travel gearbox, Travel gearbox with motor, Carrier ass'y, Sun gear shaft

2.Swing gear: Center joint ass'y, Swing gearbox, Swing motor, Gear reduction ass'y

3.Undercarriage Parts: Track roller, Track link ass'y, Idler roller, Sprocket, Spring ass'y

4.Hydraulic parts: Hydraulic pump, Main Valve, Hydraulic cylinder

5. Engine parts: Engine Ass’y, Crankshaft, Turbocharger, Fuel injector, Flywheel, Starter motor, Cooling fan, Solenoid valve

6.Electrical parts: Wiring harness, Controller, Monitor

7.Other: Cylinder Seal Kits, Fuel tank, Filter, Boom, Arm, Bucket etc.

• We could supply the following spare parts

1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.

2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.

3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.

4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.

5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.

6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.

• Advantage

1. Offer Top quality & competitive products

2. Support 6-month warranty

3. 100% tested before shipping

4. Delivery in time

5. A wide range of Oil Pressure Sensor, Fuel Tank Level Sensor, Temperature Sensor, Speed Sensor for excavator 

6. More than 15 years production and 11 years foreign trade experience

7. Professional QC team

8. Best sales team, 24 hours service

• Packing and Shipping

Packing Details :

inner packing : plastic film for wrapping

external packing : wooden

Shipping :

within 3 days after received the payment , by air or by express or by sea on the basis of the

quantity and emergency circumstances.

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,

2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.

3. By Sea: Delivery from the Huangpu port .