Imported tapered roller bearings serve multiple functions during machining, including cooling, lubrication, cleaning, and rust prevention. Their correct usage and maintenance directly impact the surface quality of machined components and the service life of cutting tools. The cooling fluids employed can be broadly categorised into soda water, emulsions, and synthetic grinding fluids. These are typically circulated in large tanks holding over 50 tonnes of fluid. Grinding debris, iron filings, and oil contaminants washed out during the process readily cause the cooling water to deteriorate, leading to scorching and rusting of machined components. Enhancing the scientific management of cooling water improves its performance, safeguards product quality, and reduces operational costs.

To ensure rigorous implementation of rust prevention procedures, the Technical Department has formulated specific assessment criteria based on process requirements, converting these into scoring systems for evaluating production plants. Primary rust prevention supervisors conduct monthly process compliance inspections at production plants. These encompass comprehensive assessments of: - Management protocols for cooling water, rust inhibitors, cleaning solutions, and rust-preventative oils - Rust incidence rates, cleanliness levels, and lubrication/packaging status of finished NSK bearings - Management proficiency of rust prevention personnel - Compliance with monitoring protocols Results are scored and formally communicated to production plants. Establish a comprehensive anti-rust management network from top to bottom, providing a robust management foundation for rust prevention efforts.