Selcom Door Ball 3201.005.0013
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Selcom Door Ball 3201.005.0013
Positioning Contact Component for Elevator Door Mechanisms
Product Overview
The Selcom Door Ball 3201.005.0013 is a small mechanical component used in elevator door systems as a contact and positioning element within the door mechanism. Although compact in size, it plays an important supporting role in maintaining stable interaction between moving door parts during operation.
In automatic door assemblies, certain motion points rely on small contact components to ensure correct positioning, guidance, or engagement. The door ball helps provide a defined mechanical contact point, contributing to smoother movement and more consistent operation of the surrounding door mechanism.
Because elevator doors open and close repeatedly throughout the day, small components such as door balls are exposed to continuous contact and pressure. Over time, surface wear or deformation may affect mechanical precision, making replacement necessary during routine maintenance.
Mechanical Purpose
Unlike rollers that provide continuous rotation, the door ball is typically used as a fixed or limited-motion contact point inside the door system.
Its functions may include:
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Supporting mechanical positioning within the assembly
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Providing a defined contact point between components
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Assisting stable movement of related parts
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Reducing irregular interaction between moving elements
A properly fitted door ball helps maintain smoother coordination within the mechanical structure.
Maintenance Context
During elevator servicing, technicians may inspect this component when there are signs of:
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Unstable door movement
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Excessive wear at contact points
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Minor impact marks or surface damage
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Reduced precision in mechanical engagement
Small mechanical parts are often overlooked, but replacing worn contact elements can help restore more stable door operation.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Type | Elevator Door Ball |
| Model | 3201.005.0013 |
| Application | Door Mechanism Contact Point |
| Function | Positioning and Mechanical Contact |
| Compatible System | Selcom Door Systems |
| Installation | Internal Door Assembly |
Frequently Asked Questions
What is the function of a door ball in an elevator system?
It serves as a mechanical contact or positioning point within the door mechanism to support stable operation.
Is this part a rotating roller?
No. It is generally used as a contact element rather than a full rolling support component.
When should a door ball be replaced?
Replacement is recommended when wear, surface damage, or mechanical instability affects the performance of the door system.
Packing and Shipping
