Roller shell is the cylindrical outer casing of a top crowned roll that directly contacts and processes materials in industrial machinery.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Length Range | 500-3000 mm | |
| Balance Grade | G2.5 | |
| Crown Profile | 0.05-0.3 mm/m | |
| Diameter Range | 150-800 mm | |
| Surface Finish | Ra 0.2-0.8 μm | |
| Wall Thickness | 25-100 mm | |
| Surface Hardness | 58-62 HRC | |
| Concentricity Tolerance | ±0.01 mm |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A cylindrical roller with a convex profile along its length, designed to compensate for deflection under load in industrial systems.
A mechanical component that provides the moving surface or rotating support for material transport in conveyor systems.
Rollers designed to maintain precise tension on a moving strand or web within a guide system.
A practical evidence checklist for RFQ preparation and supplier evaluation.
Compare the published product scope and source details, then include your specifications and quantity in an enquiry.
5 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.
The crown profile compensates for roll deflection under load, ensuring uniform pressure distribution across the entire roll width. This prevents edge cracking and ensures consistent material thickness throughout processing operations.
Roller shells should be inspected every 500-1000 operating hours, depending on material processed and operating conditions. Regular inspection includes measuring diameter reduction, checking surface condition, and verifying crown profile maintenance.
Yes, roller shells can typically be reground 3-5 times before replacement, provided sufficient wall thickness remains. Refurbishment may include regrinding to restore diameter and crown profile, followed by re-hardening or re-plating as needed.
Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.