Name: PC35-6 Excavator Final Drive Komatsu Crawler Excavator Swing Motor Parts
Brand: Lanzhou Fudong Guangqi Trading Co., Ltd
SKU: PC35-6
Availability: InStock

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PC35-6 Excavator Final Drive Komatsu Crawler Excavator Swing Motor Parts

PC35-6 Excavator Final Drive

Komatsu Excavator Swing Motor Parts

Crawler Excavator Swing Motor Parts

Place of Origin:

China

Model Number:

PC35-6

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Product Details

Product Name:

Excavator Final Drive

Application:

Excavator

Catagory:

Excavator Machinery Parts

Model No:

PC35-6

Color:

Black

Condition:

100% New

Highlight:

PC35-6 Excavator Final Drive

Komatsu Excavator Swing Motor Parts

Crawler Excavator Swing Motor Parts

Payment & Shipping Terms

Minimum Order Quantity

1 Pc

Packaging Details

Carton

Delivery Time

5-7 Days

Payment Terms

T/T

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+8615294125097

guangqi334@gmail.com

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Product Description

Excavator Final Drives PC35-6 Swing Reduction Gearbox Komatsu Crawler Excavator Swing Motor Parts

Known as the swing gearbox in industry jargon, the swing reducer of an excavator is a pivotal transmission element joining the slewing motor with the large slewing gear ring. Its main task is reducing rotational speed and boosting torque output, enabling the upper body to achieve smooth 360‑degree rotation.

Key Structural Composition

Sun Gear: Linked to the slewing motor splines, receiving high‑speed power input supply.
Planet Gears: Each stage contains 3‑4 gears, orbiting and self‑rotating around the sun gear for torque delivery.
Ring Gear: Mounted fixed to the housing and meshes with planet gear assemblies.
Planet Carrier: Delivers output power to drive the lower small driving gear wheel.
Brake: Internally fitted wet multi‑plate brake, spring‑applied locking and hydraulic‑pressure‑driven release, preventing backward rotation.
Housing and Bearings: High‑strength cast or forged steel casing equipped with heavy‑duty load bearings, dust‑resistant and anti‑leakage.

High‑speed low‑torque power output from the hydraulic motor passes through the sun gear, first‑stage and second‑stage planetary gear groups to the output planet carrier. The pinion rotates at low speed with high torque, meshing with the slewing bearing’s inner gear ring to drive upper‑structure slewing movement.

Regular Operational Failures & Root Cause Sources

Strange noise / Jittery running status: Gear abrasion and pitting damage, bearing failure malfunction, scarce or dirty lubricating oil, unsuitable gear meshing clearance size.
Oil permeation and leakage troubles: Degraded oil seal gaskets, housing structural fissures, overfilled lubricant level height, blocked air‑vent breather outlet.
Torpid or under‑powered slewing motion: Worn gear and bearing parts, partial brake release state, internal flow bypass leakage of hydraulic motor, incompatible transmission reduction ratio.
Severe overheating problems: Insufficient oil quantity or degraded lubricant quality performance, overloaded working scenarios, continuous brake drag friction, ineffective heat radiation efficiency.
Gear slipping / Broken gear tooth accidents: Shock impact load pressures, foreign particle intrusion into gearbox interior, fatigue aging degradation wear, shaft alignment offset errors during installation procedures.

Machinery Test Report	Provided	Warranty	3 Months
Video outgoing-inspection	Provided	Brand Name	OEM
Place of Origin	China	Product Name	Excavator Final Drive
Product Description	Swing Reduction Gearbox	Quality	OEM Standard
Condition	Brand New	Model Number	PC35-6
MOQ	1 Piece	Delivery Time	5-7 Days
Application	Excavator	Packing	Standard Packing

PC35-6 Excavator Final Drive Komatsu Crawler Excavator Swing Motor Parts 0

Company Profile

Tags：

PC35-6 Excavator Final Drive Komatsu Crawler Excavator Swing Motor Parts

PC35-6 Excavator Final Drive

Komatsu Excavator Swing Motor Parts

Crawler Excavator Swing Motor Parts

PC35-6 Excavator Final Drive

Komatsu Excavator Swing Motor Parts

Crawler Excavator Swing Motor Parts

SY335-9 Excavator Swing Gearbox Swing Reducer For SY335 Excavators Swing Motor Gearbox

SY245 Excavator Swing Gearbox Excavator Machinery Parts Swing Reduction Swing Motor Gearbox

PC300-7 PC360-7 Komatsu Gearbox Final Drive Gear Reducer Box

OEM Swing Reduction Gearbox PC200-8 PC220-7 Excavator Reduction Gearbox

Key Structural Composition

Regular Operational Failures & Root Cause Sources

Excavator Swing Gear Box

Final Drive Gearbox

Planetary Gear Reduction Box

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