... steering gear 1.Used for YUTONG bus 2.Compact,less energy 3.Lower oil flow rate 4.Long working life steering ... contact between thenut and the worm. When the steering wheel turns to the left, the ball bearingsroll ... groove.When the ball bearings reach the top of the nut, they enter two ball guides andare ... .minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); bus Steering gear