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Crankshaft Product List and Ranking from 5 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

Crankshaft Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. 公益財団法人岡山県産業振興財団 Okayama//Public interest/special/independent administrative agency
  2. ＪＳＴ Saitama//Manufacturing and processing contract
  3. 東陽製作所 本社・府中工場 Tokyo//Machine elements and parts
  4. 4 藤田鐵工所 Shizuoka//Machine elements and parts
  5. 5 null/null
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Crankshaft Product ranking

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. Yuasa Machinery Co., Ltd. Business Introduction 公益財団法人岡山県産業振興財団
  2. Crankshaft for air pressure compressor ＪＳＴ
  3. Assembled crankshaft 藤田鐵工所
  4. [Processing Example] Crankshaft 6 for S43C Engine 東陽製作所 本社・府中工場
  5. 4 [Processing Example] Crankshaft for Engine Made of SCM415 12 東陽製作所 本社・府中工場

Crankshaft Product List

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Fujita Iron Works Co., Ltd. Business Introduction

Fujita Iron Works Co., Ltd. Business Introduction

Leave the production of motorcycle engine parts and small general-purpose parts to us.

Fujita Iron Works Co., Ltd. is a specialized parts manufacturer capable of integrated production, including mold making, hot forging, cold forging, heat treatment processing, cutting processing, polishing processing, and assembly. We handle assembled crankshafts, integrated crankshafts, split-type connecting rods, and integrated connecting rods, so please feel free to contact us if you have any requests. 【Products】 ■ Assembled crankshafts ■ Integrated crankshafts ■ Split-type connecting rods ■ Integrated connecting rods ■ Others *For more details, please download the PDF or feel free to contact us.

  • Drive system parts
  • Vehicle body parts

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Assembled crankshaft

Assembled crankshaft

Usable from 20cc brush cutters to 600cc to 800cc snowmobiles!

Fujita Iron Works Co., Ltd. engages in the integrated production of engine parts and small general-purpose components, as well as single-process production such as hot and cold forging, cutting, and polishing. We manufacture "assembled crankshafts" that can be used in applications ranging from 20cc brush cutters to chainsaws, motorcycles, and snowmobiles with outboard engines from 600cc to 800cc. These are suitable for use in snowmobiles and small helicopters. [Applications] ■ Motorcycles ■ Snowmobiles ■ Small helicopters ■ Chainsaws ■ Brush cutters ■ General-purpose engines *For more details, please refer to the PDF materials or feel free to contact us.

  • Engine parts

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[Processing Example] Crankshaft 6 for S43C Engine

[Processing Example] Crankshaft 6 for S43C Engine

Rough machining of the outer diameter is performed using a lathe! Polishing is applied to the shaft section and pin holes to complete the process.

We would like to introduce a case study of processing crankshafts for agricultural machinery at our company. The size is L48×φ12, with a flange diameter of φ48. After cold forging to shape the rough material and heat treatment (quenching), rough machining of the outer diameter is performed on a lathe. Then, keyway and thread rolling processes are carried out, followed by polishing of the shaft section and pin holes to complete the product. Our company possesses a wide range of equipment, including NC lathes and machining centers, as well as our own manufactured rolling machines and hob machines, allowing us to excel not only in turning and milling but also in gear cutting and thread rolling. Please feel free to contact us with any inquiries. 【Case Overview】 ■Product Classification: Crankshaft ■Delivery Industry: Outdoor machinery manufacturers ■Application: Small outdoor machinery ■Material: S43C ■Size: L48mm (flange section: φ48mm) × φ12 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for S43C Engine 7

[Processing Example] Crankshaft for S43C Engine 7

Introducing examples of rough material shaping and heat treatment (quenching and tempering) using cold forging!

We would like to introduce a case of processing crankshafts for agricultural machinery at our company. After forming the rough material through cold forging and applying heat treatment (quenching and tempering), we perform rough machining of the outer diameter using a lathe. Key grooves and thread rolling are carried out, and the shaft section and pin holes are finished with polishing. The tempering process, one of the heat treatments, involves reheating to over 550°C after quenching, which forms a sorbite structure and achieves high toughness (ductility). 【Case Overview】 ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: S43C ■ Size: L62mm (flange part: φ48mm) × φ12 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for Engine Made of SCM415 7

[Processing Example] Crankshaft for Engine Made of SCM415 7

Response tailored to customer needs! Improvement of strength and hardness through high-frequency hardening of carburizing and screw parts.

We would like to introduce a case of processing crankshafts for agricultural machinery at our company. After forming the rough material and machining the center hole through cold forging, we performed rough machining of the outer diameter on a lathe, followed by drilling and keyway processing on a machining center. We requested a specialized heat treatment partner to improve strength and hardness through carburizing and high-frequency quenching of the threaded sections. Finally, the product is completed with grinding finish of the outer diameter and pin holes, as well as chamfering of the keyway. The dimensions are L54×φ12×φ10, with a flange diameter of φ55, and the material is chromium-molybdenum steel SCM415. 【Case Overview】 ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: SCM415 ■ Size: L54mm (flange part: φ55mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft 8 for Engine Made of SCM415

[Processing Example] Crankshaft 8 for Engine Made of SCM415

A processing example that requires fine adjustments, such as controlling the cutting depth to prevent chipping of the blade edge!

We would like to introduce a case study of processing crankshafts for agricultural machinery at our company. Generally, lathe processing is performed with continuous cutting, but in the case of intermittent cutting, the tool is pressed against the material intermittently, making it prone to chipping and vibration, which makes it difficult to maintain stable machining accuracy. Using chips that are less likely to chip is a prerequisite, but even so, fine adjustments such as controlling the feed rate and cutting depth to prevent the cutting edge from chipping are required. 【Case Overview】 ■Product Classification: Crankshaft ■Delivery Industry: Outdoor Machinery Manufacturer ■Application: Small Outdoor Machinery ■Material: SCM415 ■Size: L65mm (Flange part: φ47mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for Engine Made of SCM415 9

[Processing Example] Crankshaft for Engine Made of SCM415 9

Select construction methods flexibly! Here are examples of various processes applied after rough material shaping through cold forging.

We would like to introduce a case of machining crankshafts for agricultural machinery at our company. The material used is chromium-molybdenum steel SCM415. After forming the rough material and machining the center hole through cold forging, the outer diameter is roughly machined on a lathe, and then drilling and keyway processing are performed on a machining center. We commissioned a specialized heat treatment partner to improve strength and hardness through carburizing and high-frequency hardening of the threaded areas, and the finished product is completed with grinding of the outer diameter and pin holes, as well as chamfering of the keyway. [Case Overview] ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: SCM415 ■ Size: L50mm (flange part: φ47mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft for Engine Made of SCM415 12

[Processing Example] Crankshaft for Engine Made of SCM415 12

The material is SCM415 chrome-molybdenum steel! A processing example that improves strength and hardness through heat treatment.

We would like to introduce a case of processing crankshafts for agricultural machinery at our company. After forming the rough material and machining the center hole through cold forging, the outer diameter is roughly processed on a lathe, and then drilling and keyway processing are performed on a machining center. We request a specialized partner company for heat treatment to enhance strength and hardness. Finally, the product is completed with grinding finishes on the outer diameter and pin holes, as well as chamfering of the keyway. The size is L56×φ12×φ10, with a flange diameter of φ53, and the material is chromium-molybdenum steel SCM415. 【Case Overview】 ■Product Classification: Crankshaft ■Delivery Industry: Outdoor Machinery Manufacturer ■Application: Small Outdoor Machinery ■Material: SCM415 ■Size: L56mm (Flange: φ53mm) × φ12 × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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[Processing Example] Crankshaft 13 for Engine Made of SCM415

[Processing Example] Crankshaft 13 for Engine Made of SCM415

Specializing in mass production processing of tens of thousands of shafts per month! Example of crankshaft processing with SCM415 material.

We would like to introduce a case of processing crankshafts for agricultural machinery engines at our company. The size is L31mm × φ10, with a flange diameter of φ44. The material used is chromium-molybdenum steel SCM415. The rough material is shaped through cold forging and center hole processing, followed by rough machining of the outer diameter on a lathe, and drilling and keyway processing on a machining center. We have requested a specialized partner company for heat treatment, which improves strength and hardness. The finished product is completed with grinding of the outer diameter and pin holes, as well as chamfering of the keyway. [Case Overview] ■ Product Classification: Crankshaft ■ Delivery Industry: Outdoor machinery manufacturers ■ Application: Small outdoor machinery ■ Material: SCM415 ■ Size: L31mm (flange part: φ44mm) × φ10 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing

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Yuasa Machinery Co., Ltd. Business Introduction

Yuasa Machinery Co., Ltd. Business Introduction

It is a company that aims to be one-of-a-kind and is making great strides based on its high technological capabilities, which are recognized not only domestically but also internationally!

We would like to introduce Yuasa Koki Co., Ltd., which will exhibit at the Okayama Prefecture booth at the "Monozukuri Fair 2025 (Fukuoka)." The company's crankshafts boast a top-class share in Japan and serve as the heart of power devices such as engines. They are installed in engines of well-known domestic manufacturers' automobiles, motorcycles, and agricultural machinery. As a manufacturing company trusted by customers in every era, we continue to pursue "safety," "delivery time," "quality," and "cost," while working together as a company to promote our business and consistently provide products that satisfy our customers. 【Business Activities】 ■ Crankshaft processing (mass production and prototype processing) ■ Precision machining ■ Hydraulic equipment design and manufacturing ■ Design, manufacturing, and sales of telescopic poles *For more details, please download the PDF or feel free to contact us.

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  • Hydraulic Equipment
  • Processing Contract

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Integrated crankshaft

Integrated crankshaft

For outboard motors and cogeneration! Compressors and generators can also be manufactured.

Fujita Iron Works Co., Ltd. conducts a comprehensive production of engine parts and small general-purpose components, ranging from hot and cold forging to single-process production such as cutting and polishing. We mainly manufacture integrated crankshafts for outboard motors. Additionally, we also produce components for compressors and generators. [Applications] ■ Outboard motors (two-cylinder) ■ Outboard motors (single-cylinder) ■ Cogeneration *For more details, please refer to the PDF document or feel free to contact us.

  • Engine parts

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