2004-2006 Honda FourTrax Rancher TRX350TE/TM/FE/FM Service Manual, Page 39Get this manual
TECHN ICAL FEATURES DIFFERENTIAL OPERATION Figure shows the conditions when one wheel wants to spin, that is, tries to rotate faster than the differential case The torque generates force applied to the flank of the follower dog from the differential case splinewhich is then shared between the two face cams by forces on the inclined facesFigure shows the friction forces on the ends of the cam follower Since the diffe rential speed is intermediate between the two face cam speeds, the cam fo llower will move faster than he face ca at ne end, and slower th an the face ca at the other endThis ge nerates friction fo rces that are in opposite directions, leading to total resultan forces that are large on the slow face cam and small on the fas face cam If there is relative speed, then the friction must be at its limiting value, but it can build up to this progressively before rotation occursFigure shows how the load is shared between the followersOnly those followers bearing on the forward faces of the face cam form transmit torqueThe bold lines show the load bearing areas at anyone time, and there is always just less than half the cam followers drivingThe figure shows the situation at number of discrete time stepsshowing how the load carrying role is passed from follower to followerThe right hand face cam is drawn in the same position as point of reference where the left hand face cam moves down with the cam followers (which are carried by the differential case moving down at about half speed)CAM FOLLOWER: