The sprocket boss is made of SPHC (black dye)! We offer five types with 12 to 19 teeth.
We would like to introduce the "Sprocket Pulley" handled by VIV Engineering. The sprocket boss is made of SPHC (blackened) material, and the bearing is made of steel. The sprocket designation is 40. We offer five types with tooth counts of 12, 13, 14, 15, and 19. Please feel free to contact us when you need assistance. 【Material and Finish】 ■ Pulley: Nylon 66 with glass fiber ■ Bearing: Steel *For more details, please refer to the PDF document or feel free to contact us.
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We own a factory in Yantai, China, fully funded by VIV Engineering Co., Ltd., where we manufacture products under Japanese technical guidance and quality control. For 40 years, our motto has been to provide products that can be safely distributed within Japan at low prices, and we have already been recognized for our achievements in the industry.