Q:How do you install the ball bearings in the middle of the wheelbarrow?

Remove the open pin from the outside, and if it is a round nut, turn the nut. Draw the wheel with three claws or two claws, and remove the bearing. If you have any rust or damage shaft, use cloth or file, and then use a diameter greater than the diameter of axle sleeve against bearing, tap on a sleeve bearing installed.

Q:How does the wheelbarrow have a reasonable arrangement with the wheel and the directional wheel

The front is a directional wheel, and the rear is a reasonable arrangement. The main control direction of the wanxiang wheel in the back, the torque is smaller when changing direction. So, it's easier to turn.

Q:How to maintain and maintain the cart

Check the screws regularly for loose, damaged parts or seams. Replace damaged parts if necessary. The operation should be carried out strictly in accordance with the instructions in order to avoid unnecessary damage.

Q:Why did the rear wheel of the cart choose the wheel

The aim is to better control the direction of the car travel, we produce warehouse turnover hand carts are also with this in mind, because human universal active wheel in the nearest side, easy to the human body the force imposed on cart to better absorb, more conducive to car body to travel!

Q:I want to change an electric cart for myself, it's 200 to 300 jins, it can be adjusted, but I don't know how to use electric motors

Do not change the single buy big horsepower motor is too expensive, the power big, the motor too big we have the professional power plant, the assembly line produces, the cost is low.

Q:What is the etiquette of having a trolley in the form room

So, it doesn't have to be around some axis. I remember my high school book has "do translation and rotation", to clarify, "both for translation and rotation," usually "is not translation", not to turn, only can be seen as a sum of two kinds of sports. When I say "usually", it means that the rotation around a certain point can be regarded as the rotation of another point plus a translational result! Especially in the center of rotation outside objects, often also be regarded as "both for translation and rotation," by this time the movement "is turning, but it is not translation". Also, there is a common case of moving objects around a center of mass (or geometric center)

Q:Why is the elevator in the supermarket holding the cart still?

Supermarkets elevator (slope) is called the pavement, standing above the person's name is pedal, each step panel by the strips along the direction of higher rod, at ordinary times we are standing on the rod, and the wheels of the cart is special, the wheels on both sides are prominent rod, on flat ground the car by rod rolling contact with the ground, the wheels on the height of the rod lower down in the middle position has a few fixed rubber (not on the spinning wheel), push the car to the pedal and the thorns into the groove of the pedal.

Q:How to talk about supermarkets

Supermarket shopping cart ads are issued by advertising agencies. Advertising agencies are responsible for advertising, design, production, installation and maintenance.

Q:Is it a pushcart or a car?

Pulling a cart is more efficient than pushing a cart Wheelbarrows, easy to use, can be pushed and pulled. Push and pull force direction is same as the Angle of horizontal line, is it a pushcart or pull a car? The force is not so easy, it depends on the resistance of the wheel

Q:How do you know how to replace a tyre with a cart

You can find a bike for your outfit, because if it's not professional, it's hard.