Industry News

Do we still remember the first batch of Mobike shared bicycles? Their design was quite appealing. Instead of using the chain transmission commonly found in traditional bicycles, they adopted gear transmission.

A chainless bike is actually driven by gears?

 With its bold design and cool appearance, it's surprising that there's no chain, which instinctively draws me in.

 What kind of transmission is it?

 Let's open it and have a look

 At first glance, it looks like a car drive shaft

 It's just missing the front and rear differentials

 In simple terms, it refers to (conical gear) shaft transmission

 Step on the pedal to drive the installation shaft system 301 (with the bevel gear installed on it) to rotate.

 Then, through bevel gear transmission, the shaft 601 is driven to rotate.

 The shaft 601, through a set of bevel gears, drives the shaft system 401 to rotate, thereby transmitting the pedaling motion to the rear wheel.

 Bevel gear transmission is used to transmit motion and power between two intersecting shafts.

 Features: It can be used for transmission where the two axes are not parallel, and can be vertical

 The transmission efficiency of bevel gears is relatively low, making it particularly tiring to ride at that time. The cost was also very high. Nowadays, it is rare to see Mobike bikes with shaft transmissions; they have all been replaced with ordinary chain-driven bicycles.