![]() Virtually all vehicles employ positive caster, but excessive amounts can lead to camber problems, since these two angles directly affect each other. Negative caster reduces steering effort because the weight moves forward of the spindle vertical center but also detracts from high-speed stability. If the part can’t slide through, the camber is outside of specifications. This is normally measured using a set of parallel plates with a gap that the substrates will pass through. This creates a grocery cart-like situation, where the wheel centerline is behind the spindle centerline. Camber is the measurement of a substrate’s curvature on both faces showing the deviation, bow and warp along the longest linear dimension. The opposite situation is negative caster, where the top of the spindle is tilted forward past its vertical centerline. It is this same torque that requires more effort to turn the wheel. Positive caster creates an aligning torque by positioning a portion of vehicle weight behind the tire, which helps position the tire straight ahead. This is an extreme example of positive caster that creates high-speed stability-the effect that allows the rider to let go of the handlebars while the bike tracks straight. If you look at a bicycle from the side, the top of the spindle is angled rearward toward the rider. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |