How are industrial swivel casters made?

First, punch the thick steel plate according to the specifications on the side of the punch press to press out the plastic sheet, and at the same time, punch a round hole on the plastic sheet, most of which are made of Q235 material.

Put the stamped plastic sheet on the punch press, and stamp the support frame and brake pad into shape

Put grease and steel balls in a circle of the bowl-shaped plate formed by the stamping, and the number of steel balls cannot be missing, then put the support frame on the bowl-shaped plate,Put grease and steel balls on the support frame.

After installing the steel beads, install the baffle and seal ring, use hydraulic pressure to crack the cylinder in the bowl-shaped plate, rivet the small plate and the support frame together,The steel beads will also be sealed in the support frame and the bowl-shaped plate

Put the rubber into the machine to melt, and grind it into a rubber wheel through the mold. The burrs at the mold line of the rubber wheel should be polished and smooth. Install the shaft ring on the core hole wall of the rubber wheel, connect the rubber and the support frame with the extruder screw, install the nut, and finally test the caster on the machine, and the caster is ready

You can find that the support point of the universal ball caster does not have the core of the caster, so how can there be axial force, which will save more effort or can be turned without axial force. The "Tongzhou Wheel" can be turned freely without external force.

This will cause the vehicle to shake up and down even if it is not parallel. The wheel axial force design is to increase the torque. The greater the distance between the eccentricity and the center, the easier it is to turn.

The rotation direction of the caster should be consistent with the forward direction. Once the correct direction of the car is inconsistent with the rotation direction of the caster, the sliding friction on the road will generate torque on the arc, and the universal caster will push the position consistent with the walking direction through the rotation of the steel ball. Generally, the assembly of casters is fixed in the front and universal in the back. When pushing, the universal caster in the back is used to control the direction, and the fixed wheel in the front is used to move. In this way, the torque required is small, which will save more effort. However, there are also universal casters in the front of baby strollers, and all four casters of supermarket shopping carts are universal casters. All of these are adjusted according to the habits of the application environment. When it comes to wheels, everyone knows that it is round. If the wheels can be made into other shapes, can you believe it? Everyone knows that the characteristic of triangles is stability. What effect will it have if triangles are made into wheels? This type of triangle is called an arc triangle. Although it is not a circle, its three sides are all the same length, which is the same as the effect of a circular roller. So why don't we see this type of wheel?

If a triangular wheel is made, the height between the center and the floor will be different when it turns, which requires a core axis that can move back and forth, so a triangular wheel is not suitable for making wheels.