Forces exerted on support rollers?

In summary, the conversation discusses a rotating steel tube with a steel ring and solid steel rods inside. The tube is held by a bearing mounted shaft and supported by two rollers. The total weight of the unit is 10,000lbs. The position of the support rollers is currently at 36deg from vertical, but the question asks if moving them closer together to 60deg apart will increase or decrease the force required to rotate the unit.
  • #1
iamasponge
2
0
A 49" dia. steel tube (shell) with a 6" x 57.5" dia. steel ring (Tire) welded to the tube rotates horizontally at ~ 27 RPM. Inside of the shell are 42 - 2.5"dia x 6' long solid steel rods. It is held at one end by a 5" dia. bearing mounted shaft, at the other end the Tire sits on 2 bearing mounted 14" dia. rollers. The shaft support and the support rollers are 78" appart(from center of bearing to center of roller). The total wieght of this unit is 10,000lbs. The support rollers sit at 36deg from vertical or 72deg from each other. Is the force required to rotate the entire unit increased or decreased if the rollers are moved closer together so they were say 60deg apart? I have attached a quick sketch for clarity.
assem1.jpg


assem2.jpg


I hope I didn't miss something. Any help would be really great guys...Thanks in advance.
 
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  • #2
Wow! I would have thought at least one of you "Master of statics" would have attempted to tackle this.
 

Related to Forces exerted on support rollers?

1. What are support rollers?

Support rollers are mechanical components used to support and guide rotating or moving parts, such as conveyor belts, in industrial and manufacturing processes.

2. What types of forces are exerted on support rollers?

The most common forces exerted on support rollers include weight, tension, friction, and torque. These forces can vary depending on the application and load being supported.

3. How are support rollers designed to withstand these forces?

Support rollers are designed with durable materials, such as steel or polyurethane, and are often equipped with bearings to reduce friction and distribute weight evenly. They are also designed to be adjustable and can be aligned to properly distribute forces and prevent excessive wear.

4. How do forces on support rollers affect the overall performance of a system?

Forces exerted on support rollers can greatly impact the performance and efficiency of a system. Excessive forces can cause wear and tear on the rollers, leading to increased maintenance and downtime. Properly designed and maintained support rollers can help ensure smooth operation and longer equipment lifespan.

5. What are common factors that can affect the forces on support rollers?

The main factors that can affect the forces on support rollers include the weight and speed of the moving parts being supported, the angle and alignment of the rollers, and environmental conditions such as temperature and humidity. Regular maintenance and monitoring can help identify and address any issues that may affect the forces on support rollers.

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