1.Purpose Is the bearing for a new design or a replacement? new designreplacement If replacement, what issues exist with the current bearing? For example, insufficient lifespan, noise, etc. 2.Load Conditions What are the required radial and thrust load capacities for the bearing? What are the specific values and calculation methods for dynamic and static loads? 3.Rotational Speed What are the maximum and typical rotational speeds for the bearing? What measures are in place to handle heat and vibration during high-speed rotation? 4.Environmental Conditions What is the operating temperature range, and is there exposure to water, dust, or chemicals? Please specify any special environmental requirements. 5.Lifespan and Reliability What is the bearing’s design lifespan (L10 life) and expected lifespan of the main machine? What is the schedule and frequency for regular maintenance? 6.Mounting Requirements What are the bearing’s dimensional specifications (inner diameter, outer diameter, width) and mounting methods (e.g., flanged, sleeve)? 7.Material and Lubrication What material is preferred for the bearing (e.g., steel, ceramic)? Are there specific requirements for lubricant type (e.g., grease, oil)? 8.Vibration and Noise What are the acceptable levels for vibration and noise (e.g., dB levels)? 9.Misalignment Tolerance What level of misalignment tolerance is acceptable, and is a self-aligning feature required? 10.Compliance with International Standards Are there any requirements for compliance with international standards like ISO or JIS? 11.Special Features Are features like dust shields, sealed types, or long-life designs necessary? Are requirements such as solid lubrication or high-temperature resistance necessary? 12.Quantity How many bearings are required? 13.Possibility of providing focused information（Annual Plan、3 months notice）
