Quick Summary
Tenfaye manufactures custom cast steel rolling mill bearing housings based on customer drawings and technical requirements. The article covers the main production process, including melting, heat treatment, machining and quality inspection, as well as the inspection methods used for large steel castings.
Rolling mill bearing housings support and hold roll bearings in rolling machinery. Operating under heavy loads and continuous working conditions, they require high structural rigidity, material strength, and precise machining accuracy.
Because each rolling line differs in design, bearing housings are commonly manufactured according to customer drawings and technical specifications.
Engineered to Customer Requirements
At Tenfaye, every project starts with a detailed review of customer drawings and technical requirements.
Customers can provide 2D drawings, 3D models, or existing equipment data. Before production, our engineers review the component structure, plan the pouring and feeding process, and control the steel composition according to the required material and technical specifications.
From Molten Steel to Finished Components
Manufacturing large bearing housings involves melting, casting, heat treatment, machining, and final inspection:
Melting & Refining: Steel composition is controlled according to the required material grade and technical specifications.
Heat Treatment: Heat treatment is carried out according to material and technical requirements to relieve internal stress.
Machining: Machining focuses on bearing seats, fitting surfaces, and mounting areas. Key dimensions are verified against customer drawings to meet assembly requirements.
Multi-Stage Inspection & Quality Control
Quality inspection is carried out throughout production to check material quality, internal soundness, and dimensions.
Depending on project requirements, Tenfaye performs dimensional, material, and non-destructive testing:
Ultrasonic Testing (UT): Used to inspect internal quality.
Magnetic Particle Testing (MT): Used to check surface and near-surface areas.
Documentation: Chemical analysis reports, mechanical test records, heat treatment records, UT/MT reports, and EN 10204 3.1 certificates can be provided according to project requirements.
Rolling mill bearing housings are just one type of custom steel casting we produce. Tenfaye supplies custom cast steel components for metallurgy, mining, building materials, energy, and other heavy industries.
Our product range includes girth gears, ball mill trunnions, ball mill end covers, slag pots, hoppers, and heavy machine frames.
If you need rolling mill bearing housings or other custom steel castings, please send us your drawings and technical requirements for review.
