What is the difference between carrying and return idlers?
Carrying idlers support the loaded top strand of the belt; return idlers support the empty bottom strand on its way back to the tail.
TAP · Idlers
锥形托辊
Tapered conveyor rollers and conical idler sets that actively centre the belt on the carrying side while it runs.

Choose the specs for your application. We will reply with pricing, FOB and lead time for your selection.
Current SKU: IDLERS-TAP
Overview
Usage
Tapered (Conical) Idler — a conical-roll idler used in training sets and curved sections; the diameter change creates a centring force that nudges a drifting belt back inline. Key to self-aligning stations and convex or concave curves.
Operating conditions
| Working temperature | Ambient service range (-20 °C to +40 °C); sealed bearings and PU or ceramic parts tolerate wider material temperatures. |
|---|---|
| Dusty environment | Suitable — labyrinth or IP65 seals keep dust out of the bearings |
| Moisture & water | Suitable — IP65 sealing for outdoor, port, washdown and humid duty |
| Corrosive environment | Powder-coated for ordinary acid or alkali · Galvanized for coastal and semi-outdoor · Stainless for high-salinity and high-humidity sites |
| Certification | MA coal-mine safety certified versions available — confirm the certified SKUs for your project |
| Outdoor use | Suitable — coated and stainless options for coastal and weathering service |
Idlers are the rotating rollers that support the conveyor belt and the bulk load traveling on it. HBXM idlers cover belt widths up to 2400 mm and trough angles of 20 deg, 35 deg or 45 deg, with multi-labyrinth sealed bearings built for continuous duty in dust, moisture and fine powder.
Carrying idlers support the loaded top strand of the belt; return idlers support the empty bottom strand on its way back to the tail.
A self-aligning idler automatically corrects belt mistracking, reducing edge wear, spillage and unplanned downtime.
We use non-contact multi-labyrinth seals that keep grease in and keep dust, water and fine powder out for a long service life.
Yes. Our heavy-duty series is specified for mines, ports and power plants with high belt speeds, large lump sizes and continuous operation.
Conveyor rollers, also called idlers, are the rotating cylinders that carry the belt and the material on it. HBXM makes them in steel, UHMW-PE, nylon and polyurethane to suit different loads, belt speeds and environments.
Roller price depends on diameter, length, material (steel, UHMW-PE, polyurethane) and order quantity. Send your conveyor specs — belt width, load and environment — and we will quote an exact price and lead time.
Polyurethane rollers resist abrasion, oils and impact better than steel and run quieter, so they suit wet, sticky or abrasive material and applications where belt marking matters.
Highlights
Tapered shape nudges a misaligned belt back to center.
Tapered rolls auto-center a drifting belt.
Centers the belt on runs prone to drift.
Tight radial runout ≤0.5 mm gives smooth, low-resistance rotation and long belt life.
LS / CS / DS seals block dust, moisture and fine material from reaching the bearing cavity.
C3 clearance deep-groove ball bearings selected for 50,000+ operating hours.
Verified Q235 / SS400 tube wall thickness for the rated load class.
Triple-labyrinth system keeps contaminants out of the bearing cavity.
C3 bearings chosen by load and speed for a long, stable service life.
Coatings matched to dust, moisture and corrosive plant conditions.