Komatsu Belt Tensioner For SAA6D114E-3 Engine 6743-61-4120

Komatsu Belt Tensioner For SAA6D114E-3  Engine 6743-61-4120

EXCAVATOR TENSIONR  FOR komatsu PC300-8 PC360-7 

6754-61-4111 6754-61-4112 6754-61-4113 6754-61-4114 6754-61-4115 6742-01-5219 6743-61-4210

Belt Tensioner  6754-61-4111 is fitting on Komtau PC300-8 PC360-7 Excavator . Tension wheel is a belt tensioning device used in engine system.The tensioning wheel is mainly composed of a fixed shell, a tensioning arm, a wheel body, a torsion spring, a rolling bearing and a spring bushing, etc. It can automatically adjust the tensioning force according to the different degree of tightness of the belt, so that the transmission system is stable, safe and reliable. In the actual use of the tensioning wheel, a certain amount of torque is required in order to maintain the proper tensioning force of the belt, avoid the belt slipping, compensate the belt elongation caused by wear and aging.When the belt tensioning wheel is running, the moving belt may arouse vibration in the tensioning wheel, which will cause premature wear of the belt and the tensioning wheel.To this end, the tension wheel to add resistance mechanism.However, since there are many parameters affecting the torque and resistance of the tightening wheel, and the influence of each parameter is different, the relationship between the components of the tightening wheel and the torque and resistance is very complicated.Torque change directly affects the change of resistance, and is the main factor of resistance, the main factor affecting torque is torsion spring parameters.Reducing the middle diameter of torsion spring can increase the resistance value of tension wheel. We can supplied OEM Komatsu engine part and original diesel engine which our clients need.

Belt Tensioner  6743-61-4120 Specifications 

Place of Origin:  China (Mainland)
Brand Name: komatsu 
Excavator Model Number: PC300-8 PC360-7 
Type: Belt Tensioner Pulley  
Engine Application: SAA6D114E-3
Part no: 6743-61-4120
WEIGHT: 2 KG 

Komatsu 6D125 Engine Spare Parts for PC400-7 Excavators 

Komatsu Belt Tensioner For PC300-8 Excavator  Engine 6743-61-4120

Basic parameters of komatsu 6D114 engine

Power: 180 kw
Speed: 1900 RPM
Capacity: 8.3 L
Stroke: 135 mm
Cylinder size: 114 mm
Number of cylinders: 6
Oil injection: direct injection
Intake valve number: 6
Exhaust number: 6
Intake type: turbocharged
Applicable models: komatsu pc300-7 excavator, komatsu pc360-7 excavator

Crankshaft connecting rod journal: 75.962-76.013mm
Spindle neck: 97.962-98.031mm
Piston pin hole: 45.023-45.060mm
Inner diameter of connecting rod bearing: 76.046-76.140
Main bearing inner diameter: 98.079-98.128mm
Bearing bush clearance: 0.050-0.128mm
Inner diameter of valve catheter: 9.539-9.559mm
Valve seat ring hole: 15.931-15.971mm
Inlet valve seat ring hole: 53.930mm
Exhaust valve seat ring hole: 47.027mm
Piston ring opening clearance:
1, 0.35 0.60 mm
2, 0.35 0.65 mm
3, 0.30.0.60 mm
Piston outside diameter: 113.814-113.886mm
Inner diameter of cylinder liner: 113.960-114.000mm
CAM shaft bore bore diameter: 64.01mm
Camshaft bearing inner diameter: 60.012mm
Camshaft outside diameter: 59.962-60.000mm
Crankshaft axial channeling momentum: 0.127-0.330mm
Surface flatness of cylinder block: 0.075mm
Cylinder liner protrusion: 0.025-0.122mm
Connecting rod screw: 40nm-80nm-120nm
Cylinder head screws: 70nm-145nm-90 degrees
Socket screw: 50nm-120nm-176nm-90 degrees
Valve clearance: 0.30mm, row: 0.61mm

Company Profile 

Jining Kunpeng Construction Machinery Equipment Co., Ltd. was established in 2013 with a registered capital of 200 million yuan, the existing staff of 36 people, is engaged in engineering machinery products and accessories, specialized companies, with independentimport and export rights. The main agent of Komatsu excavators and bulldozer , shantui bulldozer electrical products, Donaldson air filter products; Japanese (Mitshubishi, Komatsu, Isuzu, Kubota, Yanmar ) engine machine and spare parts; Cummins, Deutz diesel engine spare parts, Marine and generator diesel engine spare parts, On firewood, Weichai, large diesel engine accessories; selling well-known brands hydraulic pumps, motors, hydraulic valves. Companies and domestic excavator manufacturing plant (Sany, Lianzhong Branch, Hill redevelopment machine, SDLG, Strong Construction Machinery Co., Ltd., Foton Lovol, Shandong liShide) in close cooperation, has successfully supportingJapanese electronics products, Donaldson air filter, excavator cab, mufflers, Danfoss Auto products, DSE, COMAP, WOODWARD CONTROLLER and other products, with high quality products and perfect after-sales service, won the manufacturers of high praise.
Our company advantage products
We Can Supplied Diesel Engine Parts :
Motor parçaları: Cummins motor parçası, Deutz motor parçası, Volvo motor parçası, Caterpiller motor parçası, kubota motor parçası, Yanmar motor parçası, Isuzu motor parçası, Mitsubishi motor parçası, Perkins motor parçası, komatsu motor parçası, Wechai motor parçası, Shangchai motor parçası, Yuchai motor parçası. 

Excavator parts: Excavator engine part,Excavator undercarrige parts, Excavtor final drive, Excavator main valve, Excavator hydraulic pump. 

Dizel Motorlar: Cummins dizel motor, Weichai dizel motor, Shangchai dizel motor, komatsu dizel motor, Yanmar dizel motor. 

Successfully Cooperating Clients Case 

Iran-Mitsubishi Marine Engine Spare Parts