Caster, which is also referred to as caster angle, is the top to bottom angle of the steering axis and suspension components as they meet the wheel. You can thank the caster for that. Wheel Diameter – In general, caster wheels can support more weight as their diameter becomes larger. Caster Size - A loose term for classifying casters, based on the nominal diameter of the wheel. Note that casters are rated at the weight capacity for each individual caster, not a set of casters. It is the angle between the pivot line (in a car an imaginary line that runs through the center of the upper ball joint to the center of the lower ball joint) and vertical. Ta Da! Caster assists in the self-centering action of the steering; Caster is not a tyre wearing angle; Excessive variation side to side means the vehicle will pull to the side of least positive caster Camber affects the vehicle's stability. Caster is viewed from the side of the vehicle. However, for vehicles with power steering systems, this is not really an issue. Suspension design & drive (front-wheel-drive or rear-wheel-drive) are the main factors which decide whether the caster should be positive or negative. Positive vs Negative Caster. There are several different methods to adjust the camber. view more Mount the Caster. Definition and synonyms of caster from the online English dictionary from Macmillan Education.. One that casts. Bigger wheel brackets also have bigger mounting holes. Modern vehicles have caster angle ranging from about 2 degrees to 8 degrees. We carry roller bearings, precision tapered bearings, annular bearings and more! What does caster mean? ThoughtCo. Definition of CASTER (noun): wheel on furniture or equipment. Proper alignment is fundamental to your car’s safety and tire tread life. Positive caster happens when the wheel and lower pivot point stay before its upper counterpart. Caster angle settings affect the following: Steering Effort - Increasing the amount of positive caster will make turning the wheel more difficult. 2: the convexity of the curve of an airfoil from the leading edge to the trailing edge It can be negative or positive. Swivel – a caster that can move forward or backward, and can rotate to change directions A zero/neutral caster setting would result in a perfectly vertical spring/shock with the center of the wheel positioned directly “south” of the strut mount or upper ball joint (depending upon the vehicle suspension type). Once the total load weight is determined, a safety factor should be added to the total. Caster definition: a person or thing that casts | Meaning, pronunciation, translations and examples Tighten the up, meaning thumb tight, diagonally. Camber definition is - to curve upward in the middle. Get to know the different types of casters and wheels with our guide to help choose the ones you need. Caster HQ's ATX Xtreme Off Road Caster Series provides the perfect caster and wheel combination for any terrain from indoors to outdoors. Zero caster is when the steering axis is at 0 degrees. Let’s look at Colson’s Moldon Polyurethane wheel on a cast iron core, for example. Vehicles these days apply this caster angle to prevent inadvertent vehicle turning or veering from the straight trajectory when driving at a high speed. Negative caster is rare and typically used on heavy-duty applications. A caster may include optional brakes (as add-on accessories, or integrated into rig). Phenolic caster wheels have long been known to be a budget-friendly option. A 6” diameter wheel has a load capacity of 2,000 lbs. Negative caster occurs when the upper pivot point stays in front of the lower pivot point. Caster is the angle formed by a line through the pivot points and a vertical line through the stub axle. Find more ways to say caster, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. Technically, the negative caster is the opposite of the positive one. Component Thrust - Designates side forces exerted on a swivel caster and properly counteracted by the secondary load bearing. Meaning of caster. a small wheel on a swivel: The grand piano was on casters. Directional stability: The ability to stay on a straight course with little or no effort. Setting wheel alignment caster. Do caster settings change for different types of vehicles? This is how my dad taught me to bolt something down. What is wheel caster? Thermoplastic rubber TPR grey caster are more durable quality than rubber caster wheels. Caster. So be sure you can get the right size lag screw for it. Four wheel alignments include adjustments of suspension like camber, caster, toe in, toe out, thrust, and 4-wheel alignment. We recommend adding a 33% addition to the total weight of the load for safety. The caster angle or castor angle is the angular displacement of the steering axis from the vertical axis of a steered wheel in a car, motorcycle, bicycle, other vehicle or a vessel, measured in the longitudinal direction. What does caster mean? per caster, and feature an industry-leading selection of fastenings, finishes, and brakes. Caster products range from 40 to 1,000 lbs. With single and twin-wheel casters customizable for performance, aesthetics, or cost—Shepherd’s continued focus on design and quality is what sets a Shepherd caster apart from the competition. A rigid caster is primarily utilized for straight line travel, meaning rolling forward or backward. A backward tilt is positive; a forward tilt is negative. The maximum recommended load per caster or wheel based on intermittent operation over smooth floors at speeds not exceeding 3 m.p.h., with no shock loading or adverse environmental conditions. 1. Wholesale 5 inch soft TPR wheel castor grey. Definition of caster in the Definitions.net dictionary. Direct Thrust - Designates Caster is the tilting of the uppermost point of the steering axis either forward or backward when viewed from the side of the vehicle. Depending on the application, it may or may not be the best possible solution.After the bout between the phenolic and the polyurethane on aluminum, we learned a lot more about the phenolic wheel’s strengths and weaknesses.This post will go over the top 10 things to consider when buying phenolic caster wheels. What does caster provide to your alignment? For example: a “6 inch caster“ is any caster having a 6 inch diameter wheel. Information and translations of caster in the most comprehensive dictionary definitions resource on … However, unlike KPI, the effects are beneficial. Tighten all down, meaning wrench tight, diagonally. Caster is sometimes called a directional control angle because it can determine whether the vehicle travels straight or if it drifts (vehicle takes a lead to a direction other than straight) or pulls (steering wheel tries to turn) to the right or the left. The final segment of four short videos on wheel alignment. This ensures good stability, helps maintain straight-ahead direction and promotes steering wheel self-centering. It's the forward or rearward tilt of the steering axis. These wheels are made of a special thermo-rubber compound and are flat free meaning they never require air but provide a ride that is similar to a pneumatic wheel but much more durable. A caster is a wheel on a rotating mount, used for carts and chairs. This is the British English definition of caster.View American English definition of caster.. Change your default dictionary to American English. Ideal for light to medium duty applications, these bearings roll … (noun) A caster of nets. Ensure all are well started before tightening any of them down fully. If the caster frame is rigid, then with a wheel installed, it is called a "rigid caster". Caster Wheel synonyms, Caster Wheel pronunciation, Caster Wheel translation, English dictionary definition of Caster Wheel. How does caster work? Top plate / Threaded stem gray caster wheels is perfect design for rough road, shock absorption and silence . A chair caster or a caster on the bottom of a furniture mover's dolly, are examples of a swivel caster that most people are familiar with. Another word for caster. The inside wheel will gain positive camber, effectively leaning the car into the turn to deliver maximum contact patch to the ground. caster - WordReference English dictionary, questions, discussion and forums. Stability - More positive caster stabilizes the wheel at speed. Put the screws in diagonally. All Free. That will most definitely come into play, depending on how you plan to attach the wheels to the leg! Heavy duty industrial casters wheels require the right wheel bearings to work properly. Wheels, on the other, hand spin on an axle and are used for mechanical applications. Returnability After completing a turn, your steering wheel spins back to the “straight ahead” position. Caster influences directional control of the steering but doesn't affect tire wear and is not adjustable on most vehicles. Bigger wheel sizes also have bigger mounting brackets, meaning the plate is bigger. Factory alignment specs for basically all vehicles call for a certain degree of positive (shown) caster. Caster angle affects the camber of the wheel during steering. The annular ball caster bearing is a form of precision bearing designed with two machined, hardened raceways that fully enclose ball bearings, which are then mounted within the wheel, meaning it is not field installable. Caster Type – describes the main structure and functionality of a caster.A caster is divided into two main parts: rig (mounting option, raceway [if swivel], legs), and wheel (wheel, bearing, axles). If a car is set up with positive camber, the outside wheel will gain negative camber during cornering. Positive caster provides steering wheel returnability and greater stability. Total load capacity per application can be calculated by taking the gross weight of a truck/dolly and dividing by three. A `` rigid caster is rare and typically used on heavy-duty applications we carry roller bearings precision! 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