Groschopp offers torque hands on right position gearboxes to provide a pivoted connection source between the gearbox and a fixed, stable anchor point. The torque arm is employed to resist torque developed by the gearbox. In other words, it prevents counter rotation of a shaft installed speed reducer (SMSR) during operation of the application.
Unlike additional torque arms which can be troublesome for some angles, the Arc universal torque arm enables you to always position the axle lever at 90 degrees, providing you the most amount of mechanical advantage. The spline design and style lets you rotate the torque arm lever to almost any point. This is also useful if your fork scenario is a little trickier than normal! Functions ideal for front and rear hub motors. Protect your dropouts – get the Arc arm! Created from precision laser trim 6mm stainless 316 for remarkable mechanical hardness. Includes washers to carry the spline section, hose clamps and fasteners.
A torque arm is an extra little bit of support metal added to a bicycle body to 
more securely hold the axle of a powerful hubmotor. But let’s back again up and get some 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 standard pedal bicycle into an electric bicycle to save money over investing in a retail . This is definitely a great option for a number of reasons and is remarkably simple to do. Many makers have designed simple transformation kits that can easily bolt onto a standard bike to convert it into a power bicycle. The only problem is that the poor dude that designed your bicycle planned for it to be utilized with lightweight bike wheels, not giant electrical hub motors. But don’t worry, that’s where torque arms come 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 a power hubmotor. You see, common bicycle wheels don’t apply very much torque to the bike dropouts. Front wheels actually don’t apply any torque, so the front fork of a bike is made to simply contain the wheel in place, not really resist its torque while it powers the bike with the induce of multiple professional cyclists.
Rear wheels on standard bicycles traditionally do apply a little amount of torque on the dropouts, however, not more than the typical axle bolts clamped against the dropouts are designed for.
When you swap in an electric hub electric motor though, that’s when torque turns into a concern. Small motors of 250 watts or less usually are fine. Even the front forks are designed for the low torque of these hubmotors. Once you strat to get up to about 500 watts is when problems can occur, especially if we’re discussing front forks and even more so when the materials is definitely weaker, as in light weight aluminum forks.