Import Deep Groove Ball Bearing — Buy in Bulk from Supplier in China

Deep groove ball bearings from Shenzhen Zhonglichuang Bearing Co., Ltd. are offered in miniature sizes ranging from 604 to 639, covering bore diameters from 4 mm to 20 mm. These bearings are designed for applications requiring compact form factors and high rotational accuracy, with standard series including 604, 605, 623, 624, 634, and 639. The construction follows metric dimensions per ISO 15, with raceways optimized for low torque and minimal vibration.

The bearings are manufactured using high-purity chrome steel, typically GCr15, with heat-treated races and precision-ground surfaces. The cage is generally made from stamped steel, and the bearings are supplied open or with metal shields (ZZ). Lubrication is typically pre-filled with lithium-based grease suitable for speeds up to 15,000 rpm. These are not stainless or ceramic bearings; the product line targets cost-sensitive applications where standard performance suffices.

These miniature bearings are widely used in small electric motors, medical devices, robotics, optical equipment, and toy mechanisms. Buyers include manufacturers of precision instruments, electronics assembly houses, and distributors serving the hobbyist and industrial repair markets. Trade terms include FOB Shenzhen and CIF, with packaging in blister packs of 100 or bulk cartons of 1,000 units. Minimum order quantities are not specified and must be confirmed with the supplier.

Shenzhen Zhonglichuang Bearing Co., Ltd. is an imported supplier located in Xixiang, Shenzhen, Guangdong. The supplier is classified as imported with harbor trust tier, indicating legal registration and export compliance. No information is provided about manufacturing capability, workforce, production volume, or years in operation. The listing confirms only that the company exports miniature deep groove ball bearings, with no claims of in-house production, certification, or testing infrastructure.

The supplier’s response rate and average response time are recorded as zero, indicating no buyer inquiries have been processed via the platform. There is no evidence of ISO, CE, or other certifications held by this entity. No factory audit reports, test certificates, or client references are mentioned. Buyers should treat this as a trading company sourcing bearings from third-party manufacturers and must validate technical claims directly before procurement.