Sell ✚◈☃70mm Jet Water Thruster with 5/6mm Stainless Shaft Couplings 8X5/6mm For Boat Surfboard Rc Mode best price

70mm Jet Water Thruster with 5/6mm Stainless Shaft Couplings 8X5/6mm For Boat Surfboard Rc Model Boat 100% Brand New This grey water jet is very high efficiency. Inner Shaft Diameter is 5mm/6mm, white jet is 5mm, others are 6mm. White jet's material of Shaft is 304 Stainless steel, grey water jet is 316 stainless steel, it is much better. There are two high speed bearings(40000rpm), grey jet is stainless steel, white jet is not. White jet coupling size is 5mm to 8mm, grey jet is 6mm to 8mm. Pitch ratio of the impeller is about 1.0. The grey jet's gasket is a bearing(stainless steel), the white jet's gasket is plastic. The max thrust of the white jet is over 18kg. the grey water jet is over 25kg/250N. recommended 8000 to 10000rpm. CNC aluminum impeller works much better than the plastic impeller. If you use 6S lipo battery and 56104 360kv motor, you can get the thrust of 16kg It is ok for 56104/56114/56123 inner rotor motor. or other outer rotor motor which installling distance is 30mm/40mm/44mm and it is M4 screw. If your battery is 6s, you could choose 56104 Kv360, if your battery is 8s/10S/12S, please use lower kv, thank you. For 12S lipo battery, 56123 230KV is good. ESC 180A to 400A is good. The surface is not super perfect due to the 3D print limits, but we will make it as good as possible. Tips: if you need other size coupling or other needs(like color, different direction), you coud leave us a message when you order it. Package Qty: 1set shipping Delivery time is approx. 11-30 business days to most destinations: ---15-30 Work days to Canada / United Kingdom / France ---11-23 Work days to USA / Australia ---20-35 Work days to Netherlands / Switzerland / Germany / Belgium / austria / Spain --- 4-6 weeks to Brazil / Italy ---Other Countries 2-6 weeks *** Extra shipment cost is needed to upgrade the fast shipment: --- EMS Speedpost (11-15 Days) --- DHL Speedpost (5-7 Days) Please contact us before you send the payment, confirm Expedited costs, Buyers please note: Due to different countries to send, Expedited shipping cost is different. Feedbacks: If you are satisfied with our products and service, pls give us a positive feedbacks with an overall Detailed Selling Rate(DSR) of 5. Pls contact us before you leave a negative or neutral feedbacks. We\'ll try our best to solve your problem. Payment The buyer is responsible for any tax and/or duty charged by their country. Contact us Contact us freely if you have any further questions. We\'ll try our best to support. Once again, thanks for purchasing in our shop!