4000rpm yutong king long higer u joint

{"cid":"91223405","title":"Yutong King Long Higer Bus Heavy-Duty Universal Joint 500k Cycle 8000Nm 4000rpm Bus Spares","imgUrl":"https:\/\/img.chinax.com\/nimg\/ca\/1d\/c2a0e57ef8de914df2df1b899b85-200x200-1.jpg","attrs":{"Price":"$10\/pieces 5-49 pieces","Brand Name":"Dingguan","Model Number":"WXJ-42120P-00","Minimum Order Quantity":"1","Delivery Time":"4-10day","Certification":"ISO 9001","Place of Origin":"Nanjing, China","Payment Terms":"T\/T","Supply Ability":"5000\/month","Packaging Details":"Carton, wooden box, custom packaging","heat treatment process":"Austempering + low-temperature tempering","fatigue life":"Bench test: no cracks after 500,000 cycles","Torque bearing":"Rated transmission torque \u2265 8000N\u30fbm","Speed range":"Maximum operating speed 4000r\/min","interchangeability":"Compliant with SAE J1280 standard","Material composition":"20CrMnTi low-carbon alloy steel","lubrication system":"Built-in lithium-based grease","Service life under actual working conditions":"\u2265300,000 kilometers"}}