Doesn't shift, doesn't loosen. 'Just fit' with a finishing accuracy of ±5μm.
A functional component that achieves both "positioning accuracy" and "smooth insertion." The reamer bolt finished by centerless grinding has a precise outer diameter tolerance within ±5μm, ensuring a fit without play during positioning, press-fitting, and assembly processes. It is ideal for improving positioning accuracy in mold components, jig components, and mechanical components.
Inquire About This Product
basic information
High-precision outer diameter achieved through centerless grinding finishing Outer diameter tolerance: ±3–5μm Surface roughness: Ra 1.6 (smoothness suitable for press-fitting) Ideal for press-fitting, gap fitting, and interference fits Achieves a smooth press-fit feel that can be done by hand, improving workability. Contributes to process shortening and quality stability Reduces variation in assembly, making torque, load, and misalignment less likely. 【Specifications (example)】 Material: S45C, SCM415, SKD11, SK, etc. Outer diameter: φ6–φ14 Length: Approximately 20mm–60mm Tolerance: h6 (±0.005) Surface roughness: Ra 1.6 Heat treatment: Hardening + grinding (as needed) Possesses know-how related to precision finishing of fitting parts Experience in processing press-fit bolts for dedicated jigs for major automotive parts manufacturers By utilizing a unique burr removal process for the escape section and centerless grinding process, tool life and assembly time are reduced.
Price range
Delivery Time
Applications/Examples of results
Automotive parts manufacturer: Fixture pin bolts for truck parts assembly line Using reamer bolts as "guide pins" in the assembly fixture Issue: During positioning and assembly of the body and engine parts, misalignment of the shaft insertion occurs, leading to variations in work accuracy and reproducibility. Effect: With pins having an outer diameter precision of ±5μm, the fit gap approaches zero, resulting in "improved assembly reproducibility." → Stable assembly becomes possible even for non-skilled workers.
catalog（1）
Download All Catalogs
Company information
We promise a manufacturing process where you can see the "difference" the moment you assemble it. 【Do you have these concerns?】 - Even though it was made according to the drawings, assembly is cumbersome. - I want small lot production during the prototype and development stages. - Difficult-to-machine materials (such as hardened steel). Ikezawa Polishing can solve these problems. 【Reasons why Ikezawa Polishing is chosen】 - High-precision grinding processing in micrometer units (±5μm tolerance). - Capable of handling difficult-to-machine materials like hardened steel. - Flexible response and short delivery times thanks to our small team. - Trust and track record built over more than 40 years of operation. 【Delivery achievements】 - Automotive and truck parts (reamer bolts, ring pins). - Printing machine parts (roller shafts). - RC engine parts for fuel (piston valves, crankshafts, throttle valves). - Hydraulic equipment parts (piston valves, oil seals, jack shafts). - Motorcycle brake parts. - Precision parts for industrial machinery. 【Media achievements】 Published in the Japan Machinery Newspaper on December 20, 2024. Feature: "From the Field." ~ Exploring the charm of manufacturing ~
![[Video] Understanding Plumbing Parts in 3 Minutes - CPC Coupling General Type](https://image.mono.ipros.com/public/product/image/99b/2000668295/IPROS87333688009443775439.png?w=280&h=280)
![[Video] Understanding Plumbing Parts in 3 Minutes: CPC Coupling High Flow Type](https://image.mono.ipros.com/public/product/image/300/2000668299/IPROS40364582948216339838.png?w=280&h=280)
![[Video] Plumbing Parts CPC Coupling Non-Spill (General Purpose) Type](https://image.mono.ipros.com/public/product/image/8ed/2000668304/IPROS14126904503520985504.png?w=280&h=280)
![[Video] Plumbing Parts CPC Coupling Non-Spill (Liquid Cooling Only) Type](https://image.mono.ipros.com/public/product/image/df3/2000668308/IPROS85286330948523935217.png?w=280&h=280)
![[Video] Plumbing Parts - CPC Coupling Multiple Type](https://image.mono.ipros.com/public/product/image/6fb/2000668314/IPROS70748830215150544993.png?w=280&h=280)