Komatsu Excavator Boom/Arm/Bucket Du Bushing

1, Komatsu Du Bushing 2, Boom/Arm/Bucket Du Bushing 3, High Quality and Good Price 4, Profressional excavator parts supplier

                                            Komatsu Excavator Boom/Arm/Bucket Du Bushing

 

* SF-1/DU Oilless Wrapped Composite Bushing * DIN 1494 / ISO 3547* Wrapped composite sliding bearing, steel / PTFE coated* Maintenance-free dry sliding bearing* Also available lead free* All special designs are produced at short notice* Cylindrical and flanged bushings, thrust washer, strips are standard fabrication* Punchings and moldings are produced on customer requirement

Technology Data 

 

Performance		Data
Load capacity P(Dry friction)	Static load	250N/mm2
	Dynamic load	140N/mm2
Max line speed V	Dry friction	2.5m/s
	Oil lubrication	5m/s
PV value limit	Dry friction	3.6N/mm2.m/s
	Oil lubrication	50N/mm2.m/s
Friction coef u	Dry friction	0.08~0.20
	Oil lubrication	0.02~0.07
Working temperature		-200oC~+280oC
Thermal conductivity		40W/mk
Coefficient of linear expansion		12*10 -6/K

  Materials Properties                         Specific load capacity static     ≤ 250 N/mm²           Specific load capacity dynamic     ≤ 140 N/mm² at low speeds           Specific load capacity rotating oscillating     ≤ 60 N/mm²                   Sliding speed     ≤ 2,5 [ m/s ]                   Friction value     0.03 to 0.25 µ                   Temperature strain     -195 to +280 [ °C ]                   Max. Pv - value     1,8 [N/mm² x m/s] Continuous operation

  3,6 [N/mm² x m/s] Short-term operation                   Tolerance Details                         Housing – Ø     H7           Bushing after mounting     H9           Shaft tolerance     f7 to h8                   Shaft Materials                         Steel, hardened or untempered, surface roughness ≤ Rz 2-3                   Mounting Adivse                         Housing – Ø     Mounting bevel, min. 1,5 mm x 15-45°           Shaft     Mounting bevel, 5 mm x 15°, edges rounded           Force fitting mandrel     

The application of an adequate force fitting mandrel is advisable. Maybe grease lubrication of the outer surface is necessary

when mounting.                   Stick in     Adhesive must not contact the sliding surface.

Komatsu Excavator Boom/Arm/Bucket Du Bushing