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Topic: Leaf spring

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	Mono Leaf vs. Multi Leaf Spring
		The main leaf of the spring attaches the axle to the vehicle.
		In the case of a multi-leaf spring, it is extremely rare that the axle moves enough to cause a loss of control of the vehicle.
		Aftermarket mono-leaf springs are either designed to have an even taper, which is not necessarily the correct taper to keep stress and load distributed evenly, or they are overbuilt, resulting in springs which are too strong for the application.
	www.eatonsprings.com /monoleaf.htm (979 words)

	Leaf Spring Tech — Install — Terminology & Overview — Circle Track
		Parabolic leaf springs can be a single-leaf or multileaf design whereas the leaves are thicker near the axle and have a tapered thickness design out to the eyes.
		The angle of the leaf spring to the shackle should be nearly 90 degrees when the car is at ride height with all of the weight in it.
		The overall spring height, as measured from the ground, and the relationship of the front eye center to the point where the spring attaches to the rear end are important considerations when designing a leaf-spring car.
	www.circletrack.com /techarticles/ctrp_0602_leaf_spring_tech_terminology (2039 words)

	Project Tacoma: Leaf Spring Tuning - "Trails Less Traveled" - Toyota at Off-Road.com (Site not responding. Last check: 2007-10-08)
		Leaf springs are held together under tension, and it would be very dangerous to disassemble them without taking these precautions.
		When a leaf spring is run through the spring-roller machine, it is fed in-between two fixed lower-rollers and an adjustable third roller that applies downward pressure.
		Each leaf spring is thoroughly cleaned to remove any surface rust, rough edges, metal particles, paint/grease/oil, etc. The centering-pin tool was used to align all of the leaf springs, while the C-clamp drew them together.
	toyota.off-road.com /toyota/article/articleDetail.jsp?id=186291 (1410 words)

	Project Tacoma: Leaf Spring Tuning - "Trails Less Traveled" - Toyota at Off-Road.com (Site not responding. Last check: 2007-10-08)
		Leaf springs are held together under tension, and it would be very dangerous to disassemble them without taking these precautions.
		Each leaf spring is thoroughly cleaned to remove any surface rust, rough edges, metal particles, paint/grease/oil, etc. The centering-pin tool was used to align all of the leaf springs, while the C-clamp drew them together.
		Erik bolted-up the rebuilt leaf springs at each of the spring-eyes and then measured the thickness of the spring-pack to determine what length U-bolts he needed to use.
	www.off-road.com /toyota/projects/tacoma/leaf_spring_tuning (1802 words)

	Leaf Springs Technical Information
		The spring rate is lighter than other styles of leaf springs and usually requires a device to control positive and negative torque loads as well as requiring coil springs to hold the chassis at ride height.
		When the front bushing is allowing the front leaf spring to pivot, it transfers all the side loads and lateral forces to rear portion of the leaf spring and shackles or sliders, which were not designed to handle the additional stress.
		For example, when the leaf springs are toed in (the front eye locations closer together than the rear mounts) the lateral rate or twisting resistance is increased, therefore one’s side bite rate is increased.
	www.landrumspring.com /pages/technical.html (2511 words)

	Tuff Country EZ-Ride Technology - www.jackit.com - The Suspension Experts
		Leaf ends are tapered to give a better approximation of the uniform strength beam, reduce weight and increase flexibility.
		Shot peening is applied to leaf springs to increase the resistance to fatigue failure.
		This process deflects the leaf spring to a specified load position beyond a certain point to induce the compressive stress on the leaf and at the same time achieve its required load arch of the spring.
	www.jackit.com /springs/tuff_leaf_process.htm (570 words)

	Optimizing Land Rover suspension
		Leaf springs can not inherently follow bumps as well as parabolics because their leaves are in contact and there are more of them.
		Leaf springs are designed to respond best to the road surface when they are near their rated maximum capacity.
		Spring bushings perform two basic functions, they allow the spring to move in relation to the frame without wearing the frame and spring mating surfaces and absorb some high frequency road vibration energy.
	www.expeditionlandrover.info /leafSprings.htm (2951 words)

	Leaf Springs , Series III Suspension
		Leaf spring packs are typically rusty and as the leaves rub over each other when absorbing road loads, this rust generates much more friction than grease would do, thus giving a less comfortable ride.
		In a leaf spring pack, one may break a leaf or two without major consequences and ANY more-or-less equipped workshop can „mend“ this is if the problem becomes a nuisance.
		Leaf spring maintenance (if any) is easy: the only problem with leaf springs is rust, so packing them with grease is allways a good idea.
	www.landroverclub.net /Club/HTML/Leaf_suspension.htm (567 words)

	leafsprings
		Leaf springs are bulky and heavy, but they represent a simple and effective way to locate and suspend the rearend.
		The rearend is bolted to the leaf springs, and when the housing rotates it bends the leaf front into an S shape and pulls the tire off the ground.
		Leaf springs and traction devices, with their various mounting options, rates, and so forth, are adjusted to get the suspension close to optimum, but shock absorbers are the key to fine-tuning the whole enchilada.
	members.tripod.com /~Crim_Auto/leafs.html (2134 words)

	truck leaf spring, trailer leaf spring manufacturer, rear leaf springs, indian manufacturer and exporters
		truck leaf spring, trailer leaf spring manufacturer, rear leaf springs, indian manufacturer and exporters
		leaf springs education and leaf spring knowledge is here.
		custom auto rear leaf spring manufacturer and exporter.
	www.vinayakleafspring.com (213 words)

	Leaf spring, spring leaf, trailer, suspension, automobile, spring, laminated leaf spring, trailer leaf spring Shock ...
		Leaf spring, spring leaf, trailer, suspension, automobile, spring, laminated leaf spring, trailer leaf spring Shock Absorbers manufacturers and exporters loose leaf spring and leaf spring assemblies manufacture leaf springs light and medium section springs manufacturers parts dealers automobiles, trailers, agricultural and animal driven trolleys, railway wagons, defence
		We are manufacturers and exporters of loose leaf spring and leaf spring assemblies.
		However the adaptation of Leaf Spring is different for different region and vehicles it is not possible to supply you with any catalogue as such.
	www.automobileexpo.info /Shock-Absorbers.htm (378 words)

	Leaf Spring Safety Warning (Site not responding. Last check: 2007-10-08)
		Leaf spring suspensions are often overlooked and neglected.
		Spring clips/bands are installed to assist the leaf spring suspension when exposed to shock and rebound loads and prevents spreading or fanning out of the leaves.
		Inadequate leaf spring suspension maintenance may result in serious damage to the vehicle and injury or death to the operator and other users of the road.
	www.tc.gc.ca /roadsafety/tp2436/rs200003/index_e.htm (411 words)

	The Ranger Station
		The wheel rate is usually lower than the true spring rate due to factors such as spring position and control arm or axle leverage that can effectively lessen the spring rate at the wheel versus the actual spring rate at the spring.
		SPRING RATE is a measure of the force required to compress a spring one inch.
		Leaf spring rates are determined primarily by the length, number, width, and thickness of the leaves in a spring pack.
	www.therangerstation.com /tech_library/leafspringrate.htm (496 words)

	TRS Magazine - Dana 44 With Leaf Springs Swap
		The springs proved to be too soft, so a few extra leafs were added to stiffen the pack (there are now 7 leafs in each pack).
		The distance from the rear hanger spring bolt to the front hanger spring bolt is 44”, and the front hangers are also 32” apart, on-center.
		The bolt-up of the Dana 44 to the leaf springs is now a matter of centering the axle and determining the proper pinion angle (the pinion angle is a critical measurement that affects caster and driveshaft angles – a professional in this field should be contacted for assistance).
	www.therangerstation.com /Magazine/Winter2002/Dana44_leafspring_conversion.htm (1259 words)

	Eaton Detroit Spring
		the only source for the correct leaf springs and coil springs for your vehicle because we have -
		Over 166,000 stock leaf spring and coil spring applications
		Over 70 years of leaf and coil spring manufacturing experience
	www.eatonsprings.com (37 words)

	Ossur® AFO Leaf Spring « Ankle Foot Orthoses « Ankle « Braces & Supports - Ossur
		Ossur AFO Leaf Spring features a more rigid vertical aspect for good lifting capacity, with a thinner, more flexible foot section for ease of trimming.
		Ossur AFO Leaf Spring is developed and produced according to ISO 9001.
		Ossur AFO Leaf Spring fulfills the requirements for CE marking.
	www.ossur.com /bracesandsupports/ankle/anklefootorthoses/afoleafspring (190 words)

	The STM-8 Leaf Spring Seismometer (Site not responding. Last check: 2007-10-08)
		Photo of the new Magnetic Damper for the Spring The spring has a parasitic resonance at about 50 hz which is damped by small rare-earth magnets attached (by themselves) to the spring (they are the barely visible round objects on the outer curvature of the spring) which induce eddy currents in the copper bar.
		The leaf spring is the blade of a large drywall plaster taping knife.
		There is, of course, a three-way trade-off between the size of the mass, the strength of the main spring (and the spring contribution of the hinges themselves), the location of the boom support point, and the resulting mechanical period.
	www.eas.slu.edu /People/STMorrissey/stmseis.html (6837 words)

	S & S-Smith Spring Shop
		All leaf springs are made with U.S. steel to Original Equipment Manufacturer specifications and are heat formed, quenched in an oil bath then reheated to obtain the correct hardness of the leaf.
		Practically all leaf springs that are now used on cars and trucks are of the semi-elliptic type.
		This is because the semi-elliptic spring has the outstanding advantages of not only acting as a spring (to resiliently support the vehicle), but also serves the important functions of positioning the axles and of cushioning both driving torque and brake reaction.
	www.smithsprings.com /leafspring/index.nhtml (233 words)

	Leaf Spring & Suspension Products
		Standen's was the first in the North American leaf spring industry to apply CAD-CAM (Computer Assisted Design and Manufacturing) to the manufacturing and design process.
		Standen's is the largest full line leaf spring manufacturer in North America, producing springs with load capabilities from 100 kg to 30,000 kg.
		When a new generation of leaf springs or air suspension beams is required, we're ready to produce them.
	www.standens.com /spring.htm (538 words)

	4Crawler Offroad Products - Custom Leaf Spring Shims
		On leaf-sprung vehicles, shims (or wedges) are often used to modify the angle between the spring perch on the axle and the leaf spring itself.
		Since one of the leaf springs jobs is to resist the torque reaction of the axle to the tires in contact with the ground, moving the axle farther from the springs will increase the leverage of the axle on the springs.
		For tapered blocks, slip the block in between the springs and perch, ensuring the pressed in pin engages the hole in the spring perch and the head of the center pin engages the hole in the block.
	www.4crawler.com /4x4/ForSale/Shims.shtml (7147 words)

	Installation of a lowering leaf spring kit - Classic Trucks Magazine
		With the exception of the spring pads, which need to be welded to the axle housing once positioned, everything from the spring hangers to the shock mounts bolt to the frame using holes previously occupied by factory rivets.
		As for the spring pads that were supposedly going to work, well, the Walton kit moves the leafs inboard a tad--enough so that only half of each leaf actually rested on the perches--so off they had to come.
		Since the springs were coming out with the rearend as one unit, the torque tube had to be disconnected from the tranny.
	www.classictrucks.com /tech/0607cl_classic_chevy_truck_lowering_leaf_spring_installation (1255 words)

	OME Leaf Spring Suspension System
		Each spring is shot peened on the tension side to reduce stress; scragged and load tested to ensure proper set and height; and the ends are draw-tapered and diamond cut to minimize friction and ensure even load distribution.
		Finally, the springs are fitted with greasable nylon inserts at the rear spring end, three clamps with nylon liners keep the springs aligned and squeak-free, and each leaf is finished with a graphite coating.
		Installing the leaf springs and shocks is the same as with any other new pack: lift the rear end by the differential and secure the frame on jackstands, then remove the rear wheels.
	www.4x4wire.com /toyota/reviews/ome (2052 words)

	Leaf Spring - Products for Leaf Spring - Manufacturers,Exporters,Suppliers,Traders,Companies,Factories
		It is used fro rolling parabolic leaves for leaf spring productio
		Conventional leaf springs and parabolic leaf springs are for heav
		It is used to form eyes for leaf springs, digitally controlled, w
	www.alibaba.com /productsearch/Leaf_Spring.html (687 words)

	Benz Spring: Spring Identification
		Be careful of leaf springs that taper both in thickness and width.
		Whenever possible, replacement springs will be made of same steel chemistry as the manufacturer intended, however in some cases, currently available spring steel may not closely replace the original size.
		A spring leaf is placed on a special anvil or special press and small kinks are placed in the leaf changing it's overall shape.
	www.isomedia.com /homes/benzspg/springs.htm (1362 words)

	Trailer Leaf Spring Technical Information
		Match the existing spring according to its shape and type (double eye, slipper-open eye end, slipper-hook end, slipper-flat end, or slipper-radius end).
		Measure the length of the spring (see diagram below) when the spring is not under load, this is the free length of the spring.
		All our leaf springs are supplied with a 9/16" ID bushing in the closed eye, but this dimension can be changed by using different bushings.
	www.easternmarine.com /em_store/tech_info/leafspring_tech_info.html (193 words)

	HST Parabolic Leaf Springs
		To enable this the leaf is tapered, from the center (thick) to the outer ends (thin).
		This means that the ideal parabolic spring could have only one leaf, however, this type of "mono leaf" spring will have very limited articulation due to high internal stresses so a 2 or 3 leaf parabolic spring can divide the stresses more evenly across the other leaves and thus more axle movement is possible.
		Separate leafs can be added, to increase load capacity, or removed, to lower the spring rate, without compromising the structure of the spring itself.
	www.man-a-fre.com /pa/hstparabolicleafsprings.htm (1072 words)

	Posies Hot Rod Leaf Spring - Tech Articles - Street Rodder Magazine
		To measure for a spring using your axle, measure between the centerlines of the spring perch bosses.
		To measure for a spring using the perches, measure between the centerlines of spring perches.
		Additionally, proper leaf springs are designed to transfer forces from braking and driving between frame and axle, as well as resist wrap-up caused by drive and brake torque, and, on I-beam type applications, maintain proper caster and camber.
	www.streetrodderweb.com /tech/0201sr_leaf_springs (837 words)

	2002 Ford Ranger - Leaf Spring Refurbish - Four Wheeler (Site not responding. Last check: 2007-10-08)
		Because of the type of abusive work environment that leaf springs are designed to operate in, it is easy to install a set and forget about them for the life of the vehicle.
		Ride quality, height, and spring rates were exactly what we were looking for, yet at 500 pounds, we still had enough load capacity for the tongue weight of a trailer or all the gear we take when exploring the backcountry.
		Once each leaf has been prepped, a liberal coating of Moly spray is applied to the springs, to which it bonds, providing a lubricated surface between leaves that offers high resistance to loads, temperature, wear, with minimal dust attraction.
	www.fourwheeler.com /projectbuild/129_0603_bild_2002_ford_ranger_leaf_springs (906 words)

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