It balances a tire out so there is even wear on the whole tire. If this was not done, it may lead to uneven tire wear. A tire balancer helps a mechanic to place weights on the rim of a tire which in turn allows for proper operation of a tire. When tires are not balanced properly they can cause unusual ware and tare on your tires.
http://www.agequipment.co.uk/fmccal.html
yes
Here are a couple places that sell these: http://www.hunter.com/pub/product/balancer/index.htm and http://www.ammcoats.com/
http://www.agequipment.co.uk/fmccal.html
It costs about $500 to $2000 to purchase a used tire balancer. Yes, you can order it online at www.EagleEquip.com/WheelBalancers There are many different websites that sell used tire balancers, including CraigsList. Another website to find a tire balancer is http://www.toolsusa.com/asp/item_detail.asp?T1=PBE%20GSO%20STD1030STD50&trackcode=GoogleBase.
Use precision gauge blocks and shims
You can find Channel 31 online at the C31 Organization AU website. Once on the page, click on "About C31" in the top navigation menu to bring up the information.
One that has been put on a machine and weights added to compensate for any imbalance/imperfection caused either by wear or by the mfg. process (on new tire)
Behind the harmonic balancer. You will need to remove the right front tire, remove the access panel to the engine (through the wheel well), remove engine belt, remove harmonic balancer & pulley with a puller. Remove & replace crank sensor, align sensor with an alignment tool, replace balancer with an installer tool.. BE VERY careful with the balancer, the backside of it has a hall effect style blades. bending these blades will junk the balancer.
b21 because 7x3=21
There are many quality brands of tire balancers. One brand is Nationwide. The prices vary, but are usually at least $1,000,000. Another brand is CEMB USA. The prices for this brand begin at $2,000,000.