Negative camber on the front wheels means they’re inclining toward the chassis. By contrast, a negative caster can involve forward tilting, so that the rear part of your pivot point is more pronounced; this means that you can often turn your wheel further from a straight ahead position, which can help with banking and corners. Related:  Symptoms of a Bad Wheel Alignment. There are special tools available to do so, such as the bubble gauge and turn plates. Once the caster is adjusted to your liking, check the camber, toe, and ride height again and make necessary adjustments to ensure that all measurements are within spec for the vehicle. The result will be a vehicle with less traction and poor handling. Bicycles have positive caster, since the front wheel steering axis is angled forward to give the rider more stability in a straight line. Vehicles with negative caster do not handle as well. A negative camber can improve the handling of the vehicle. If the wheel is allowed to move up and backward under compression, the vehicle can more smoothly absorb road imperfections. PU industrial casters include medium duty PU caster wheel and PU fix flat caster wheel. This is utilized to great extent by luxury cars, which is why older Cadillacs often nosedive under braking. Positive Caster Drawbacks. A car that pulls to one side when traveling in a straight line may have negative caster. A vehicle’s suspension geometry has three common measurements, which can often be adjusted, called caster, camber, and toe. Negative Caster Advantages. Caster Semenya Gender Issues (pinoyathletics.info) Diamond League: Caster Semenya set for first race since controversial new IAAF rules (scroll.in) Optimism high for historic CARIFTA Games medal haul (stabroeknews.com) Semenya targeted by new athletics testosterone rules (vanguardngr.com), Caster Semenya to Challenge IAAF Rules. In more aggressive racing applications, caster also helps improve the camber gain. The angle between a pivot line in your car and the upper to lower ball joint can be adjusted in different ways to create a slightly different balancing position. Without diving into tire manufacturing, bias-ply tires love negative caster, or the upper ball joint in front (towards front of car) of the lower ball joint. In a facility where products or equipment is being moved frequently, casters will speed up the process. On some vehicles you can replace shocks without needing an alignment if the ride height stays the same. There are many advantages in using a dual wheel caster vs. a single wheel for heavy loads. Photograph: Cameron Spencer/Getty Images Wed 24 Aug 2016 03.00 EDT Negative camber increases grip while turning/cornering, but decreases grip on acceleration or braking in a straight line and too much of it can quickly wear out your tires. Negative caster is found only in older vehicles as it is a limitation of older technology such as outdated chassis dynamics and tire specifications. This causes heavier steering, or greater difficulty in turning the steering wheel (only noticeable in vehicles without power steering). In this test, a bubble gauge on the wheel hub measures caster. It makes sense that if something is easier to move, it will move more quickly. This is good for cornering as it maximizes the area of tire that is in contact with the ground on the outside front wheel, which is under the most load during the turn. Positive vs. However, negative caster can cause suspension issues and pulling motions to the side if it is too great, and can consequently be viewed as being risky. Effect:-The purpose of providing castor is to give a Trailing effect to the front wheels.This Trailing effect allows the vehicle to easily straight ahead recovery. The only advantage to negative caster is that it’s easier to turn the steering wheel. What is the advantage of having more negative camber on the rear tires than the fronts? I’m driving a 2014 W204 and the vehicle has a caster of 1.40 max different and caster -1.00. Also, there was no power steering back then, so automakers had to figure out a way to make the steering wheel feel lighter for the drivers. If making any suspension changes to your car, it’s consequently crucial to make sure that any tilt and adjustments to your wheel alignment are safe; positive caster can help you with racing and staying in the same lane, and can be a good idea for sports like autocrossing. Which one is better, then, for your car? When the pivot axis is tilted backwards so that your top pivot is further forward than the rear pivot, your car’s wheels will re-align more quickly, while creating more drag and friction on the road; this makes it easy to maintain a straight line when driving in a particular lane. Dual wheel casters can carry much more weight than a single wheel. Vehicles with negative caster do … This can also be unsafe as the vehicle should turn as expected when the steering wheel is rotated. Modern cars use positive caster in order to resist unintentional turning of the vehicle, or wandering/straying from the intended path, when traveling straight at speed. Benefits of Negative Camber. I can think of no possible benefit or application where running negative caster would be of benefit or offer any advantages. Technically, the negative caster is the opposite of the positive one. 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