Groschopp offers Torque Arm china torque hands on right position gearboxes to supply a pivoted connection resource between the gearbox and a fixed, stable anchor stage. The torque arm is used to resist torque developed by the gearbox. Quite simply, it prevents counter rotation of a shaft installed speed reducer (SMSR) during operation of the application.
Unlike different torque arms that can be troublesome for some angles, the Arc universal torque arm allows you to always position the axle lever at 90 degrees, providing you the most amount of mechanical advantage. The spline style allows you to rotate the torque arm lever to nearly every point. This is also convenient if your fork situation is a little trickier than normal! Works ideal for front and rear hub motors. Protect your dropouts – acquire the Arc arm! Made from precision laser minimize 6mm stainless 316 for good mechanical hardness. Includes washers to carry the spline section, hose clamps and fasteners.
A torque arm is an extra piece of support metal put into a bicycle framework to more securely contain the axle of a powerful hubmotor. But let’s back up and get some good even more perspective on torque arms generally to learn if they are necessary and just why they happen to be so important.
Many people want to convert a typical pedal bicycle into an electric bicycle to save lots of money over investing in a retail . This is usually an excellent option for a number of reasons and is surprisingly easy to do. Many manufacturers have designed simple change kits that may easily bolt onto a typical bicycle to convert it into a power bicycle. The only trouble is that the poor guy that designed your bicycle planned for this to be used with lightweight bike tires, not giant electrical hub motors. But don’t be concerned, that’s where torque arms can be found in!
Torque arms are there to help your bicycle’s dropouts (the area of the bike that holds onto the axles of the wheels) resist the torque of an electric hubmotor. You see, regular bicycle tires don’t apply very much torque to the bicycle dropouts. Front wheels essentially don’t apply any torque, therefore the front fork of a bike is built to simply hold the wheel in place, certainly not resist its torque while it powers the bike with the induce of multiple specialist cyclists.
Rear wheels on typical bicycles traditionally do apply a little amount of torque in the dropouts, but not more than the 
typical axle bolts clamped against the dropouts can handle.
When you swap within an electric hub motor though, that’s when torque becomes an issue. Small motors of 250 watts or fewer are often fine. Even the front forks are designed for the low torque of the hubmotors. Once you strat to get up to about 500 watts is when concerns can occur, especially if we’re talking about front forks and even more so when the materials is certainly weaker, as in metal forks.