Parts, Accessories, and Ancillary Components of Conveyor Rollers and Idlers

Conveyor rollers and idlers are essential components of belt conveyor systems, providing support, alignment, and motion control for the belt and transported materials. To ensure proper function, a range of parts, accessories, and ancillary components work in tandem with these rollers and idlers.

1. Core Parts of Conveyor Rollers and Idlers

These are the primary elements that make up a roller or idler assembly:

• Roller Shell (Tube):
  Cylindrical body that comes in various diameters and materials (typically steel or HDPE). It rotates with the belt and supports the load.

• Shaft:
  A stationary rod running through the roller, usually made of precision-machined steel. It provides axial support and connects to the frame.

• Bearing:
  Located inside the ends of the roller shell, allowing it to rotate smoothly around the stationary shaft.

• Bearing Housing:
  A protective enclosure that holds the bearing in position and ensures correct alignment.

• Seals:
  Critical to protecting the internal bearing assembly from dust, water, and other contaminants. Common types include labyrinth and contact seals.

2. Accessories for Conveyor Rollers and Idlers

These items enhance performance, ease installation, and increase durability:

• Brackets & Mounting Clamps:
  Used to attach rollers and idlers to the conveyor frame securely. Designed for easy installation and alignment.

• Spacer Rings:
  Keep the roller components properly aligned on the shaft and maintain axial spacing.

• Locking Bushings / Locking Collars:
  Prevent movement between the shaft and roller tube, ensuring secure operation even under high loads.

• End Caps / Protective Covers:
  Shield the bearing and seal area, offering extra protection from extreme environments.

• Rubber Lagging or Coatings (optional):
  Applied to rollers for better belt traction or wear resistance in abrasive applications.

3. Ancillary Components

These support the function and longevity of conveyor rollers and idlers:

• Idler Frames / Brackets:
  Structural elements that hold multiple rollers in place (e.g., 2-roll or 3-roll troughing sets). They define the troughing angle and alignment of the system.

• Guide Rollers / Side Idlers:
  Prevent belt misalignment by guiding the belt back to center. Commonly used on both carry and return sides.

• Impact Beds / Impact Idlers:
  Installed at loading zones to absorb shock and protect the belt from damage during material loading.

• Return Rollers:
  Located on the underside of the conveyor, supporting the empty return belt.

• Training Idlers / Self-aligning Idlers:
  Automatically adjust their angle to correct belt tracking issues and maintain belt alignment.

• Lubrication Systems (manual or sealed-for-life):
  Maintain proper bearing lubrication to ensure long service life and reduced maintenance.

4. Optional Add-ons for Harsh Environments

• Corrosion-Resistant Coatings or Materials (e.g., stainless steel, HDPE):
  Used in food, chemical, or wet applications.

• Dust Covers / Splash Guards:
  Extra protection for rollers in extremely dusty or wet conditions.

• Noise-Reducing Sleeves:
  Polyurethane or rubber sleeves placed on rollers to minimize noise in sensitive environments.

Importance in Conveyor System Performance

The right combination of parts and accessories ensures:

• Extended roller and belt life.

• Smooth and stable belt operation.

• Reduced downtime and maintenance.

• Enhanced safety and system reliability.

China-Techpart Precision Technology Co., Ltd (short as China-Techpart) is professional international export

company which specialized in producing conveyor belt roller punching press bearing housing and relative

sealing. China-Techpart business have extended all over the world such as Mexico, Russia, Chile, Brazil, UK,

USA etc, which have established good relationship with famous customers in main countries and region of the

world. Our global market share is growing bigger and bigger. China-Techpart already received highest recognition

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of rapid expansion in the international market

China-Techpart wholly owned holding company which have 4 advanced technology punching press production

lines, high precision injection production center, as well as modern mould machining center. Now China-Techpart

is China's largest and most complete varieties professional punching press bearing housing and sealing parts

manufacturing. China-Techpart's production ability over 5 million sets of bearing housing annually, All export

products will be checked by equipments imported from Italy, the tolerance is accurate to 0.001mm, which ensure

the products diamonds quality. China-Techpart can supply belt conveyor roller bearing housing and sealing type such

as TK, TKII, and DTII etc. China-Techpart also can produce in according with your exact requests. 

China-Techpart's bearing housings is not only the indispensable parts of common conveyor roller manufacture, but

also the preferred products chosen by roller manufacture with high-speed, long-distance and large capacity transportation,

which can be widely used in the national major projects as mine, steel, cement, coal, electric power and seaport industry.

The advantages of China-Techpart roller bearing housing and relative sealing are following:

Ø Excellent material. The material are used cold rolled sheet from Bao steel Co., Ltd, Wuhan Iron & Steel Corp

Ø Fatigue resistance, no deformation and no distortion

Ø Good Polish effect, no stretching scars and burrs

Ø High precision, low eccentricity

Adhering to the principle of "develop together with grateful heart and contribute society endlessly", China-Techpart

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service. China-Techpart focus on a strategic further, for build company unique "China-techpart" world brand. Our

goal is to make the "China-techpart" as the Chinese bearing housing appellation.

China-Techpart unique business goal:

Make "China-techpart" to be landmark brand of China bearing housing around world market.