Groschopp offers torque arms on right angle gearboxes to provide a pivoted connection resource between the gearbox and a fixed, stable anchor point. The torque arm is utilized to resist torque produced by the gearbox. In other words, it prevents counter rotation of a shaft mounted rate reducer (SMSR) during operation of the application.
Unlike additional torque arms which can be troublesome for a few angles, the Arc universal torque arm enables you to always position the axle lever at 90 degrees, providing you the many amount of mechanical advantage. The spline style allows you to rotate the torque arm lever to nearly every point. This is also handy if your fork circumstance is just a little trickier than normal! Functions great for front and rear hub motors. Protect your dropouts – get the Arc arm! Created from precision laser trim 6mm stainless steel 316 for good mechanical hardness. Includes washers to carry the spline section, hose clamps and fasteners.
A torque arm can be an extra piece of support metal added to a bicycle framework to more securely hold the axle of a powerful hubmotor. But let’s back again up and get some good even more perspective on torque hands generally speaking to learn if they are necessary and just why they happen to be so important.
Many people decide to convert a typical pedal bicycle into an electric bicycle to save lots of money over investing in a retail . This is definitely an excellent option for a number of reasons and is surprisingly simple to do. Many companies have designed simple alteration kits that can easily bolt onto a standard bike to convert it into a power bicycle. The only issue is that the indegent person that designed your bike planned for this to be used with lightweight bike wheels, not giant electric hub motors. But don’t get worried, that’s where torque arms can be found in!
Torque arms are there to help your bicycle’s dropouts (the part of the bike that holds onto the axles of the wheels) resist the torque of a power hubmotor. You see, normal bicycle wheels don’t apply much torque to the bicycle dropouts. Front wheels truly don’t apply any torque, so the the 
front fork of a bicycle was created to simply contain the wheel in place, not really resist its torque while it powers the bike with the drive of multiple professional cyclists.
Rear wheels on regular bicycles traditionally do apply a small amount of torque in the dropouts, however, not more than the standard axle bolts clamped against the dropouts are designed for.
When you swap within an electric hub motor though, that’s when torque becomes a concern. Small motors of 250 watts or a smaller amount are generally fine. Even front side forks are designed for the low torque of these hubmotors. Once you strat to get up to about 500 watts is when concerns may appear, especially if we’re discussing front forks and much more so when the materials is weaker, as in metal forks.