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

Perfil de la empresa 

Jining Kunpeng Construction Machinery Equipment Co, Ltd. se estableció en 2013 con un capital registrado de 200 millones de yuanes, el personal existente de 36 personas, se dedica a productos de maquinaria de ingeniería y accesorios, empresas especializadas, con independentimport y derechos de exportación. El principal agente de excavadoras Komatsu y bulldozer , shantui bulldozer productos eléctricos, productos de filtro de aire Donaldson; Japonés (Mitshubishi, Komatsu, Isuzu, Kubota, Yanmar ) máquina de motor y piezas de repuesto; Cummins, Deutz motor diesel de piezas de repuesto, Marina y generador de motor diesel de piezas de repuesto, En leña, Weichai, grandes accesorios de motor diesel; venta de marcas conocidas bombas hidráulicas, motores, válvulas hidráulicas. Las empresas y la planta de fabricación de excavadoras nacionales (Sany, Lianzhong Branch, Hill máquina de reurbanización, SDLG, Strong Construction Machinery Co., Ltd., Foton Lovol, Shandong liShide) en estrecha cooperación, ha apoyado con éxitoproductos electrónicos japoneses, Donaldson filtro de aire, cabina de excavadora, silenciadores, productos Danfoss Auto, DSE, COMAP, WOODWARD CONTROLLER y otros productos, con productos de alta calidad y perfecto servicio post-venta, ganó los fabricantes de grandes elogios.
Las ventajas de nuestra empresa
We Can Supplied Diesel Engine Parts :
Piezas de motor: Piezas de motor Cummins, piezas de motor Deutz, piezas de motor Volvo, piezas de motor Caterpiller, piezas de motor Kubota, piezas de motor Yanmar, piezas de motor Isuzu, piezas de motor Mitsubishi, piezas de motor Perkins, piezas de motor Komatsu, piezas de motor Wechai, piezas de motor Shangchai, piezas de motor Yuchai. 

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

Motores diesel: Motor diesel Cummins, motor diesel Weichai, motor diesel Shangchai, motor diesel Komatsu, motor diesel Yanmar. 

Successfully Cooperating Clients Case 

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