Lubrication of bicycle

Bike is enormous quantity wide human machinery, electric trike structure with sliding friction and rolling friction, a little friction and line friction, fluid lubrication and boundary lubrication, oil lubrication and grease lubrication. The key to the bike movement friction is axis parts and front and rear axle, all is the use of ball bearings, with 2 calcium base grease lubrication. Every maintenance to ball and bead tank and cover with clean, to the bead with 2 calcium base grease groove, around the shaft surface smooth rounded and complete with uniform particles, special size consistent ball (beads), and then a good cover, do not make the impurities mixed with dust. Then every quarter or half a year to the lubrication oil hole () or shaft end 2-5 drops bicycle lubricating oil, or 40 ℃, the Cargo bike of 7 to 15 was/s low viscosity lubricating oil. But must be cleared before refueling refueling hole or shaft end near the dust dirt, lest cause wear and tear. When general grease lubrication can't mix oil, oil and fat in general do not mix. But on the bike is a special case, to simplify the equipment without nipple, only adding lubricating oil, to improve the lubrication. Second chain and lubrication of gear plate, here is a mixture of sliding friction and rolling friction friction, and most in boundary lubrication condition, so the friction condition is strict, must use good adhesion and lubrication oil lubrication, especially most are open, in the case of dust is more, the chain and gear plate wear serious, therefore according to the situation at any time (a quarter or half year) clean, switch to the new oil, the most to use bigger oil viscosity (10-20 was 40 ℃ viscosity/s), but in general, use and to the three axis of the same lubricating oil, it is more convenient.