products details

Home Products

Crawler Excavator Spare Parts Swing Gearbox DH60 Reduction Reducer Gearbox for Doosan

Name: Crawler Excavator Spare Parts Swing Gearbox DH60 Reduction Reducer Gearbox for Doosan
Brand: Lanzhou Fudong Guangqi Trading Co., Ltd
SKU: DH60
Price: Negotiable USD
Availability: InStock

Model Number:	DH60
MOQ:	1 Pc
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Type:

Excavator Spare Parts

Machine Model:

DH60

Condition:

100% New

Application:

Excavator

Packing:

Carton Box

Productname:

Excavator Machinery Parts

Packaging Details:

Carton

Highlight:

swing gearbox dh60

dh60 swing drive gearbox

Product Description

Crawler Excavator Spare Parts Swing Gearbox DH60 Reduction Reducer Gearbox for Doosan

Known colloquially as the swing gearbox, the swing reducer of an excavator is a critical transmission component that connects the slewing motor with the large slewing gear ring. It mainly functions to slow down rotational speed and boost torque, facilitating smooth 360° rotation of the upper body assembly.
Main Components
Sun Gear: Attached to the slewing motor’s splines, it inputs high‑speed power.Planet Gears: 3‑4 gears per stage, rotating both around and on the sun gear for torque transmission.Ring Gear: Fixed inside the housing and meshes with planet gears.Planet Carrier: Provides power output to drive the bottom pinion gear.Brake: Built‑in wet‑type multi‑plate brake; engaged by springs and released hydraulically to prevent reverse rotation.Housing and Bearings: Heavy‑duty cast or forged steel housing supported by high‑load bearings, dust‑proof and leak‑resistant.
Low‑torque high‑speed power from the hydraulic motor is delivered through the sun gear, first and second planetary gear sets to the output planet carrier. The low‑speed high‑torque pinion meshes with the slewing bearing’s inner gear ring, making the upper structure slew.
Common Failures & Root Reasons
Abnormal sound / Stuttering operation: Gear abrasion and pitting corrosion, bearing breakdown, lack of lubricant or dirty oil, unsuitable meshing clearance.
Oil oozing and leaking: Damaged oil seals, housing fractures, overfilled lubricant, blocked breather hole.
Lazy or weak slewing: Worn gears/bearings, partial brake release, hydraulic motor internal bypass flow, incompatible gear ratio.
Excessive heat buildup: Low oil quantity or degraded lubrication oil, overloading, continuous brake friction, inefficient heat dissipation.
Gear jumping / Broken gear teeth: Shock loads, foreign matter entry, fatigue aging, misaligned shafts during installation.

Machinery Test Report	Provided	Warranty	3 Months
Video outgoing-inspection	Provided	Brand Name	OEM
Place of Origin	China	Part Name	Swing Reduction Assembly
Model	DH60	Keyword	Swing Gearbox
MOQ	1 Piece	Quality	Tested Great Performance
Application	Excavator	Delivery Time	7-35 Days
Service	Professsional Service	Condition	Brand New

Company Profile

Tags:

Excavator Machinery Parts

Hydraulic Main Control Valve

Diesel Engine Parts

Hydraulic Main Pump

Excavator Swing Motor

Excavator Travel Motor

Swing Motor Gearbox

Excavator Hydraulic Cylinder

Swing Motor Case

Excavator Joystick Handles

Excavator Foot Pedal Valve

Travel Motor Gearbox

Excavator Turbocharger

products details