PU Spiral Centering / Self-Cleaning Idler

Product Overview

The PU Spiral Centering / Self-Cleaning Idler combines a continuous helical PU rib that both auto-centers the belt and scrapes stuck fines off as it turns, serving zones that need tracking and cleaning at once on 24–72 inch sticky, moist coal, slurry and chemical return runs. The spiral pushes residue outward while correcting drift, cutting build-up on the roller and reducing carry-back; sealed labyrinth bearings suit damp duty.

Key Features

Type

Spiral correction / centering idler

Face

Continuous helical PU rib along the tube

Action

Combines automatic centering and adhesive cleaning

Roller Diameter

5" / 6" (Ø127–150mm)

Belt Width

24"–72" (600–1800mm)

Bearing

Sealed bearing, labyrinth seal

Benefit

Centers belt and scrapes off stuck fines

Applications

Sticky, moist bulk where residue builds on rollers
Coal, slurry and chemical handling return runs
Zones needing both tracking and cleaning

How to Choose This Component

Grade and load: choose CEMA E for extra-heavy, high-tonnage and overland duty; CEMA D for heavy-duty mainstream sections. Size the roller diameter and bracket spacing to the expected impact, belt load and material flow.
Belt width: match the part to your belt (BW 24"–72"). When requesting a quote, send belt width, required trough angle or drum diameter, and installation spacing so we can confirm a drop-in fit.
Working environment: tell us whether the duty is wet, dusty, sticky, abrasive or high-drop so we can match the seal, lagging, material and surface finish.
Retrofit and mounting: provide existing bracket spacing and frame type for a direct replacement; painted or galvanized finishes are both available.

Why Source These Spare Parts From Us

Built to CEMA D/E and ISO alignment standards for interchangeability with existing frames.
Direct factory supply with no middleman markup; OEM and private-label orders accepted.
Custom dimensions, lagging, seals, shafts and finish built to your specification.
Seaworthy timber or carton export packing; shipped to 60+ countries by sea, air and express freight.
Engineer support on selection and a written quote within 48 hours.

Frequently Asked Questions

What build grade and rating is the PU Spiral Centering / Self-Cleaning Idler?

PU Spiral Centering / Self-Cleaning Idler is supplied at Spiral correction / centering idler. It is engineered to match CEMA D/E and ISO expectations for BW 24"–72" belt duty and can be customized to your dimensions, lagging and finish.

What belt widths does the PU Spiral Centering / Self-Cleaning Idler cover?

This component is sized for BW 24"–72". Send your exact belt width, required angle or diameter and installation spacing when requesting a quote so we can confirm a direct, drop-in fit.

How is the PU Spiral Centering / Self-Cleaning Idler sealed against dust and water?

Protection follows Sealed bearing, labyrinth seal. Labyrinth-style sealing keeps grease in and fines, moisture and wash-down out, extending service life in harsh bulk-handling conditions.

Can I order a custom PU Spiral Centering / Self-Cleaning Idler?

Yes. Dimensions, lagging or coating, seal, shaft and finish are built to your specification; standard lead time is 15–25 working days and 30–45 days for fully custom builds.