Wobbler End: Load Capacity 50-200 kN, Diameter Range 150-500 mm

Component Specifications

Definition

The Wobbler End is a specialized mechanical component attached to work rolls in rolling mills, designed to precisely control the lateral movement and oscillation of rolls during metal forming operations. It ensures uniform material distribution, prevents edge defects, and maintains consistent thickness across the rolled product through controlled wobbling motion.

Working Principle

Operates by converting rotational force from the drive system into controlled lateral oscillation of the work roll. This wobbling motion distributes wear evenly across the roll surface, prevents material buildup, and ensures consistent pressure distribution during metal deformation processes.

Materials

High-grade alloy steel (typically AISI 4140 or equivalent), heat-treated to HRC 45-50 for wear resistance. Surface may be coated with tungsten carbide or ceramic for enhanced durability in high-temperature applications.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Load Capacity	50-200 kN
Diameter Range	150-500 mm
Connection Type	Tapered or splined shaft interface
Operating Temperature	Up to 400°C
Oscillation Frequency	5-30 Hz
Maximum Lateral Displacement	±2-10 mm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001:2015, DIN 1543, ASTM A29

Parent Products

This component is used in the following industrial products

Rolls (Work Rolls)

The primary rotating cylinders in a rolling mill that directly contact and deform the metal workpiece.

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Engineering Analysis

Risks & Mitigation

Mechanical fatigue failure
Thermal stress cracking
Wear-induced dimensional inaccuracy
Lubrication failure leading to seizure

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction leading to overheating and component seizure
Mitigation: Implement automated lubrication monitoring systems and regular maintenance schedules

Trigger: Material fatigue from cyclic loading
Failure: Crack propagation and eventual fracture
Mitigation: Use fatigue-resistant alloys and implement non-destructive testing during routine inspections

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05 mm dimensional accuracy, surface roughness Ra ≤ 1.6 μm

Test Method

Ultrasonic testing for internal defects, dimensional verification using CMM, hardness testing per ASTM E18

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Wobbler End

Manufacturer profiles associated with Wobbler End.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a Wobbler End in rolling mills?

The Wobbler End controls lateral oscillation of work rolls to ensure uniform material distribution, prevent edge defects, and extend roll life by distributing wear evenly.

How often should Wobbler Ends be inspected in industrial applications?

Regular inspection every 500-1000 operating hours is recommended, with complete maintenance every 2000-3000 hours depending on operating conditions and material being processed.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Wobbler End