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Item No : KH257DN50 Description : KH-257D Outrunner Motor is a powerful and high torque motor. It weights only 38-39.5g. Two 22mm 12 tooth stators and 16 pieces N50 magnet allows you to set-up the motor in many ways. For example: Distributed LRK winding with 14 magnet poles. KH-257D gives you highest flexibility to tailor make a prefect motor for your model. KH-257D Outrunner Motor Kit includes the following parts:- 2pcs 22mm 12tooth Insulated Stators 16pcs 4 x 9 x 1.7mm N50 (Operation Temp. up to 80C) 1pc Pre-pressed CNC End-Bell and Flux Ring 30 feets #24 Magnet Wire 1pc CNC Aluminum Bearing Tube 2pcs 3.17 x 6.35mm Ball Bearing 1pc 3.17mm Hardened Steel Shaft 3pairs Connectors (Male and Female) 1pc C-clip 7pcs Shrinking Tubes Specifications: Size of Insulated 12poles Stator: OD: 22mm, ID: 10mm, Length: 8.5mm (Total height of two stators) Lamination: 0.3mm Size of Bell: OD: 27.7mm, ID: 26mm, Airgap between magnets and stator: 0.15mm Net Weight (RTF): 38-39.5g. It depends on magnet and winding set-up Firewall Motor Mount and Stick Motor Mount can be purchased at "Motor Parts" section. The performance data of 14magnet poles / Distributed LRK winding is available at “Tutorial Download" Section
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