Product Overview
Back-up Roller Bearings
Back-up rollers with or without pivot for levelers, straighteners and steel coil processing lines.
Back-up Rollers for Leveler and Straightener Machines
Back-up roller bearings support work rolls and help maintain strip flatness in metal processing equipment. Designs are available with pivot, without pivot, as double back-up rolls and with customer-specific shaft ends.
Design Options
- Cylindrical or crowned outer-ring profile
- Sealed or relubricable internal design
- Custom shaft-end mounting and fixing methods
- Special heat treatment for heavy rolling-line duty
Reference Groups
Back-up Roller Bearings series and model references
Use these groups to identify the requested design. A reference is not an interchange approval; dimensions, suffixes and operating conditions must still be checked.
| Design group | Common references or options |
|---|---|
| Without pivot | Bore-mounted back-up rolls and NNTR-style support rollers |
| With pivot | Integrated shaft and customer-specific shaft-end executions |
| Double back-up rolls | Paired support roller arrangements for leveler applications |
| Drawing-based designs | Cylindrical or crowned outer profile, custom sealing and lubrication |
Information required for selection
- Drawing
- Provide d, D, B, C, overall length, shaft ends and fixing details.
- Outer profile
- Confirm cylindrical, crowned or application-specific roll geometry.
- Process load
- Strip material, work-roll force, line speed and expected shock loading.
- Accuracy
- Runout, profile tolerance and surface-finish requirements.
- Lubrication
- Sealed or relubricable design, lubricant and contamination conditions.
Verification
Drawings, inspection records and application evidence
Evidence is matched to the quoted product and order scope. We do not present another supplier's factory media, certificates or customer projects as our own.
Technical drawings
Reference sheets support identification. Controlled manufacturing drawings require model and supplier confirmation.
Inspection records
Request dimensional, marking, packing or supplier-document checks with the RFQ. Availability is confirmed before order placement.
Factory and equipment media
Only dated media supplied by the selected manufacturing partner or captured during the relevant inspection is used as evidence.
Customer applications
Cases are published only with permission or in anonymized form using verified order and application facts.
Review the verification process Request product-specific documents
Required Back-up Roller Data
Send the complete drawing or d, D, B, C and overall-length dimensions, outer profile, strip material, process force, line speed, lubrication and sealing requirements.
Heavy-duty NNTR-style rollers may also be reviewed under track roller bearings. Send a back-up roller drawing.