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Liner Kit Engine Spare Parts Qsb6.7 Overhaul Kit Piston Ring Set For Cummins
Engine Spare Parts QSB6.7 Overhaul Kit Piston Piston Ring Set Liner Kit for Cummins
The fit clearance between the liner, piston and piston ring can meet the installation requirements of the main engine factory, which greatly increases the operational life of the engine.
The different working temperature of piston and the different expansion characteristics of aluminum alloy piston and cast iron cylinder liner make it difficult to control the gap between piston skirt and cylinder liner. The most efficient skirt shape cannot overcome the differential expansion rate between piston and cylinder.
In addition, the minimum clearance determined under the maximum load of the engine will also cause too large clearance under partial load, resulting in knock noise and increased engine fuel consumption. In order to control the cylinder piston skirt clearance, make it neither too small bite caused cylinder cylinder, and not too big to cause noise and vibration, the piston skirt and pin buried cast symmetry between a pair of steel sheet, and will be appropriately extended around the periphery of the skirt of the steel, together with the surrounding material of the steel bimetallic strip, heat expansion shrinkage along the axis of the piston pin in the vertical direction.
This piston in the ring groove and the skirt of the itd does not open heat insulation groove, heat flow can be smoothly transferred to the skirt, so the first ring groove area of the temperature than the slotted piston, the strength is higher. Aluminum piston is widely used to control thermal expansion by means of steel strip or steel ring.
Excavator engine parts
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1. Samples are welcome for production.
2. Enough types of stock
3. Quick and safe delivery ,Various of transportation way: Sea, Air, Bus, Express, etc
4. High quality with competitive price
5. We can develop new items for you especially
6. We have more than 10 years in construction machinery parts in Oversea market
7. Honesty and trustworthiness in business
8. Positive feedback from abroad and domestic market
1. What's the MOQ? Can I buy one sample fo testing?
MOQ is 1 Piece. We accept sample or trial order.
2. Can you supply FREE SAMPLE?
Sorry, we can't. Our sample policy is that you may pay for the sample and shipping cost first, and we will refund it when you purchase them in mass quantity.
3. What's your delivery time and shipping way?
Actually 3-5 business days for sample via DHL/UPS/Fedex door to door service.
25-30 days for mass production or it depends on your order quantity (By Sea or as you needed)
4. What's your Payment terms? T/T, L/C, Western Union
5. What's the after sales? Our products warranty is for 12 months.