what is radius arm?

albertgunit101 · 05-23-2007, 07:31 PM

does anyone knows what is the other word for this part? called RADIUS ARM. mine is messed up but no one knows what is the other word for it coz seems like no one knows about this part. i know for the fact its called RADIUS ARM.

PHOENIX · 05-23-2007, 09:18 PM

A radius rod (also called a radius arm or a torque arm) is a suspension member intended to control wheel motion in the longitudinal (fore-aft) plane. The link is connected (with a rubber or solid bushing) on one end to the wheel carrier or axle, on the other to the chassis or unibody of the vehicle.

Radius rods typically are mounted ahead of the wheel. In that position they resist dive under braking forces and wheel hop under acceleration.

Radius rods are customarily made of stamped steel or aluminum for lightness, as they are part of the vehicle's unsprung weight. Improvements in composite materials technology make possible plastic suspension links, although they are still uncommon.

Other suspension components can be made to act as radius rods under certain conditions. For example, the rear suspension of the original 1966 Oldsmobile Toronado used shock absorbers to connect the rear beam axle to the frame; these shocks controlled longitudinal wheel movement, but their damping action prevented the forces of those movements from being felt by the passengers.

On a vehicle with longitudinal leaf springs, such as a Hotchkiss drive suspension, the springs themselves provide some longitudinal wheel control. One or more torque arms may be added to provide supplementary wheel control, particularly for vehicles with strong torque such as drag racers. On some leaf spring-equipped vehicles, such as 1960s Chrysler Corporation cars, the springs are mounted so that a greater portion of the spring's length is forward of the wheels, improving wheel control on acceleration. A side effect of such positioning is that the shorter, aft portion of the springs may not be stiff enough to control wheel movement under braking forces, which can lead to pronounced wheel hop in hard stops.

wikipedia FTW

albertgunit101 · 05-24-2007, 06:50 AM

thank you for all the information.

TomsMR2 · 05-24-2007, 10:47 PM

aka, tension rod, aka strut rod, aka "that thinggy that controls caster"

albertgunit101 · 05-25-2007, 06:43 AM

artur1976 help me out on parts. he has diagram and stuff. and it is strut rod. thanks

eastcoastdrifter · 08-02-2008, 05:44 AM

Tension arm?

05-23-2007, 07:31 PM	#1 (permalink)
albertgunit101 Cage Fighter Join Date: May 2007 Location: springfield illinois Posts: 892 Thanks: 74 Thanked 18 Times in 18 Posts iTrader Rating: (12/100% )	what is radius arm? does anyone knows what is the other word for this part? called RADIUS ARM. mine is messed up but no one knows what is the other word for it coz seems like no one knows about this part. i know for the fact its called RADIUS ARM.

05-24-2007, 06:50 AM	#3 (permalink)
albertgunit101 Cage Fighter Join Date: May 2007 Location: springfield illinois Posts: 892 Thanks: 74 Thanked 18 Times in 18 Posts iTrader Rating: (12/100% )	thank you thank you for all the information.

05-25-2007, 06:43 AM	#5 (permalink)
albertgunit101 Cage Fighter Join Date: May 2007 Location: springfield illinois Posts: 892 Thanks: 74 Thanked 18 Times in 18 Posts iTrader Rating: (12/100% )	radius artur1976 help me out on parts. he has diagram and stuff. and it is strut rod. thanks

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05-23-2007, 09:18 PM	#2 (permalink)
PHOENIX Beams Owners Group Join Date: Mar 2005 Location: Japan --> U.S. Posts: 7,337 Thanks: 74 Thanked 221 Times in 166 Posts Blog Entries: 1 My Google Map iTrader Rating: (41/100% )	A radius rod (also called a radius arm or a torque arm) is a suspension member intended to control wheel motion in the longitudinal (fore-aft) plane. The link is connected (with a rubber or solid bushing) on one end to the wheel carrier or axle, on the other to the chassis or unibody of the vehicle. Radius rods typically are mounted ahead of the wheel. In that position they resist dive under braking forces and wheel hop under acceleration. Radius rods are customarily made of stamped steel or aluminum for lightness, as they are part of the vehicle's unsprung weight. Improvements in composite materials technology make possible plastic suspension links, although they are still uncommon. Other suspension components can be made to act as radius rods under certain conditions. For example, the rear suspension of the original 1966 Oldsmobile Toronado used shock absorbers to connect the rear beam axle to the frame; these shocks controlled longitudinal wheel movement, but their damping action prevented the forces of those movements from being felt by the passengers. On a vehicle with longitudinal leaf springs, such as a Hotchkiss drive suspension, the springs themselves provide some longitudinal wheel control. One or more torque arms may be added to provide supplementary wheel control, particularly for vehicles with strong torque such as drag racers. On some leaf spring-equipped vehicles, such as 1960s Chrysler Corporation cars, the springs are mounted so that a greater portion of the spring's length is forward of the wheels, improving wheel control on acceleration. A side effect of such positioning is that the shorter, aft portion of the springs may not be stiff enough to control wheel movement under braking forces, which can lead to pronounced wheel hop in hard stops. wikipedia FTW

05-24-2007, 10:47 PM	#4 (permalink)
TomsMR2 Formerly Tom Brokaw Join Date: Feb 2005 Location: Bay Area Posts: 2,138 Thanks: 8 Thanked 165 Times in 138 Posts Blog Entries: 1 iTrader Rating: (0/0% )	aka, tension rod, aka strut rod, aka "that thinggy that controls caster"

08-02-2008, 05:44 AM	#6 (permalink)
eastcoastdrifter AW11OC Join Date: Aug 2008 Location: Sydney, Australia Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Tension arm?