Processing of splines, serrations, and equidistant grooves on the inner diameter of the ring. Consideration is given to the positional relationship with the outer diameter and reference holes, the phase in the circumferential direction, and the deformation of thin-walled sections.
At Hanshin Seiko, we accept orders for the machining of precision ring parts, including inner diameter irregular processing and special shape machining such as splines, serrations, internal teeth, and equidistant grooves. Focusing on wire cut electrical discharge machining, we combine machining, shape-cutting discharge, and polishing as needed, and consider the processing steps according to the drawings. Please consult us for special ring parts in single items, prototypes, or small lots. We confirm not only the inner diameter contour but also the positional relationship with the outer diameter and reference holes, the phase in the circumferential direction, and the angular positions of multiple grooves. For parts with tooth profiles, we create processing data based on specifications such as the number of teeth, pitch, pressure angle, and major and minor diameters. For thin-walled rings, we consider deformation due to fixation and changes in rigidity due to notches, and we examine the minimum wall thickness and holding methods. For parts after quenching, we check the feasibility of processing based on material, hardness, and shape. Along with the drawings and CAD data, please provide information on material, outer diameter, inner diameter, plate thickness, reference position, required tolerances, quantity, and desired delivery date.
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basic information
Processing target: Precision ring components Processing shape: Inner diameter spline, serration, internal teeth, equidistant grooves, notches, polygonal and irregular contours, etc. Processing method: Primarily wire cut electrical discharge machining, with consideration for machining, sinker EDM, and polishing as needed Consultation quantity: Single items, prototypes, small lots Verification items: Relationship between inner and outer diameters, phase with reference holes, angles and pitches, minimum wall thickness, heat treatment condition, required tolerances *For shapes that allow wire passage, wire cutting will be considered, while shapes with a bottom will be considered for sinker EDM. Corresponding dimensions and precision will be confirmed based on the drawings and holding conditions.
Price information
This is an individual estimate for each drawing. We will confirm the material, heat treatment condition, outer diameter, inner diameter, plate thickness, specifications for tooth shape and grooves, phase designation, required tolerances, quantity, and processing steps to provide the estimate.
Delivery Time
※We will confirm the shape, required precision, quantity, holding method, necessary processing steps, and equipment operating status and provide guidance. Please let us know the condition before processing and your desired delivery date.
Applications/Examples of results
【Applications and Consultation Examples】 - Inner diameter splines used for engagement with shafts and torque transmission - Special rings for dedicated machines, jigs, molds, and drive components - Parts with multiple grooves or notches evenly distributed in the circumferential direction - Parts with specified inner diameter shape position and phase relative to outer diameter or reference hole - Rings that require finishing of special inner diameter shapes after hardening - Thin-walled rings that need consideration for deformation after fixing or processing - Single repair parts or prototype rings for design verification *This is not the sale of standard rings, but a contract processing service based on drawings.
Company information
Hansei Seiko Co., Ltd. is a precision metal processing company founded in 1948, based in Kobe City, Hyogo Prefecture. We offer integrated processing services centered around wire cut electrical discharge machining, shape electrical discharge machining, and fine hole electrical discharge machining, as well as machining, polishing, finishing, and measurement. We welcome inquiries for precision parts, mold components, jigs, test pieces, and more, whether for single items, prototypes, or small lots. In addition to processing hardened steel, carbide, and stainless steel, we also handle contour machining of thick parts, key grooves, fine slits, and complex shapes. We confirm material, shape, required precision, and application, and consider processing conditions and processes. This reduces the burden of arranging multiple processing locations and supports part manufacturing. Based on the principle of "making according to the drawings," we conduct inspections and measurements in-house to confirm the finish before shipping. Based in Kobe and Hyogo, we accept processing inquiries and quotation requests from across the country. If you have parts you are struggling to process or drawings for which you would like to consider methods and processes, please feel free to consult with us. https://www.hansei.co.jp/
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