About Chin Sing | Reliable Bearing Components Supplier - RoHS Compliant

Chin Sing Precision Industry Co, Ltd | Certified lock washers for industrial applications

Chin Sing Precision Industry Co, Ltd

About Chin Sing

Chin Sing Precision Industry Co., Ltd was established in 1990, Chiayi, Taiwan, master in manufacturing Bearing Adapter Sleeves, Hydraulic adapter sleeves, Withdrawal Sleeves, Hydraulic Withdrawal Sleeves, GUK Self-Lock Nuts, Inch Lock Nuts / Lock Washers, Metric Lock Nuts/Washers, Prevailing torque bearing nut with metal insert, Lock Plates, Safety Bearing Nuts, Pillow Block, Seat and Bearing House, self-lubricating Brass Bushing, Ceramic Ball Bearing, Linear Guide, Ball Screw, etc.


All products are very popular in Europe, US, Japan, Asia and also in Taiwanese market, Our Locknuts has passed PPAP-LEVEL 3 certification, we are the supplier of two famous American car manufacturers with long-term business cooperation. We are a leading manufacturer in this field for more than 30 years, we also provide full line of OEM / ODM service.

Our factory has passed ISO-9001:2015, ISO-14001:2015 inspection, our products meet RoHS, REACH and Taiwan SGS certification standard.
It's our policy to insist on the management concepts of "Quality, Sincerity, Trust, Profession and Innovation."
Although adapter sleeves are small parts for bearing , but it plays an important role in this field.

Our company put emphasis on every link, from purchasing the material, production, inspection to packaging, we make 100% of inspection on all our products to make sure the quality is perfect.

We also have many customized products that meet our customers’ needs. This is why you have to choose Chin Sing!

We are a professional manufacturer of Bearing Adapter Sleeves, Hydraulic adapter sleeves, Withdrawal Sleeves, Hydraulic Withdrawal Sleeves, GUK Self-Lock Nuts, Inch Lock Nuts/Lock Washers, Metric Lock Nuts/Washers, Prevailing torque bearing nut with metal insert, Lock Plates, Safety Bearing Nuts, Pillow Block, Seat and Bearing House, self-lubricating Brass Bushing, Ceramic Ball Bearing, Linear Guide, Ball Screw, etc. Our products are manufactured in Taiwan.

If you have any inquiry for transmission parts, please feel free to contact Chin Sing. We will do our best to work with you!

We are actively expanding our global presence. We are looking for more partners, agents, or dealers in Europe, America, Japan, and other regions. If you are interested, please feel free to contact us for further information.

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About Chin Sing



Product introduction



ISO-9001:2015, ISO-14001:2015, RoHS, REACH and Taiwan SGS certification.

Professional manufacturer of Adapter Sleeves, GUK, Lock Nuts, Lock Washers & Plates, self-lubricating Brass Bushing, Ceramic Ball Bearing, Linear Guide, Ball Screw for more than 32 years.

Excellent Quality

Our company put emphasis on every link, from purchasing the material, production, inspection to product packing, we make 100% of inspection on all our products to make sure the quality is perfect.

Trusted Vendor

Our factory has passed ISO-9001:2015, ISO-14001:2015 inspection, our products meet RoHS, REACH and Taiwan SGS certification standard. It's our policy to insist on the management concepts of "Quality, Sincerity, Trust, Profession and Innovation."

Affordable Prices

Our products are manufactured in Taiwan with reasonable prices to satisfy all our customers' need.