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ChengRoll resources
Resource Library

See the Component Running. Download the Drawing Before You Ask.

Dimension drawings, parameter tables and product videos — so your engineering team can check fit before a single email goes back and forth.

Downloads

Drawings & Parameter Tables

Available on request — send us the model you need and we will return the drawing package with your quotation.

Conveyor roller drawing

Diameter 50–219 mm, length 190–3400 mm, with shaft, bearing and seal detail.

Idler parameter table

Bandwidth / roller size / trough angle / weight reference for selection.

Pulley dimension sheet

Shell diameter, face width, shaft and lagging options.

Bracket & frame drawings

Mounting patterns and trough-angle configurations.

Material certificate sample

What ships with your order — tube, shaft and bearing documentation.

Inspection report sample

The QC record format we issue per shipment.

Product Videos

Watch Before You Specify

Troughing idler video

Troughing idler

Running view and seal detail.

Impact roller video

Impact roller

Loading-point behaviour under drop.

Drive pulley video

Drive pulley

Lagging and runout check.

Spiral return roller video

Spiral return roller

Self-cleaning action.

Rubber disc roller video

Rubber disc roller

Material shedding on the return side.

Self-aligning idler video

Self-aligning idler

Automatic belt tracking.

Selection Guides

Technical Reading

Idler vs roller: what is the difference?

The terms are used loosely in the industry. Here is the distinction that matters when you specify.

How to choose a conveyor idler

Duty, environment and failure cost — the three questions that decide the build.

Why bearings fail before they wear out

Contamination, not fatigue, is the usual cause. Seal design is the answer.

Lagging selection: rubber, ceramic or groove

Match pulley lagging to belt tension, wrap angle and wet duty.

Controlling carry-back at the head pulley

Where cleaner specification pays back in idler life.

Standards explained: GB, DIN, JIS, BS

What each requires of an idler, and why GB/T 10595-2009 is our floor.

These guides are being written now — based on the questions buyers actually ask us. Tell us which topic you want first.

Need a Drawing That Is Not Listed?

Send the model or a dimension sketch. We will return the drawing package with your quotation.

Request a Quote