Import Bearing 6203-2rs — Buy in wholesale FOB from Supplier in China

The 6203-2RS is a single-row deep groove ball bearing with a 17 mm bore, 40 mm outer diameter, and 12 mm width, manufactured by Changzhou Hsh Machinery Co., Ltd in Jiangsu Province, China. The bearing carries two contact rubber seals (2RS designation) that provide superior lubricant retention and protection against dust, moisture, and other contaminants common in electric motor and pump applications. The internal clearance is rated C0, meaning normal clearance suitable for standard interference fits and operating temperatures. The super-finished raceways reduce vibration and acoustic noise, meeting Electric Motor Quality (EMQ) standards that are critical for applications where smooth running is essential.

The bearing rings and balls are produced from high-carbon chromium steel GCr15, equivalent to AISI 52100, a material standard for through-hardened bearing components offering typical hardness of 60-65 HRC after heat treatment. This alloy provides excellent fatigue resistance and dimensional stability under load. The contact seals are nitrile rubber (NBR) in standard commercial grade, though fluoroelastomer (FKM) seals are available for higher temperature ranges on request. The bearing is lubricated with a standard lithium-based grease at the factory, with alternative greases possible for specific speed or temperature requirements. Stainless steel construction using AISI 440C is a typical option in this bore size for corrosive environments, though the buyer should confirm availability with Changzhou Hsh Machinery Co., Ltd directly.

This bearing series serves electric motors, pumps, fans, HVAC equipment, and general industrial machinery where radial and moderate axial loads occur. The ISO 15 standard dimensions ensure full interchangeability with bearings from major global manufacturers, simplifying maintenance spares management for importers and distributors. Typical buyers include OEMs in power transmission, aftermarket distributors, and maintenance-repair-overhaul (MRO) operations. When sourcing from Changzhou Hsh Machinery Co., Ltd, confirm the exact seal material, grease fill percentage, and whether EMQ noise testing is performed on 100 percent of production or via sampling. Also verify packaging specifications for sea freight, as individual plastic tubes or bulk oil-paper wrapping affect customs classification and storage upon arrival.

Changzhou Hsh Machinery Co., Ltd is located in Wujin District, Changzhou City, Jiangsu Province, China, a region with extensive bearing manufacturing infrastructure and supply chain density. The supplier holds a harbor trust tier, which represents a baseline verification status on the platform. The response rate is currently 0.00 percent with zero average response hours recorded, indicating no reply data is available from recent buyer enquiries. The supplier address is complete with postal code 213000, allowing for direct verification of location and potential factory audit planning. The listing provides material specification and dimensional data but does not state any quality management system certification, production capacity figures, or export experience details.

The supplier's product description focuses on the 6203-2RS as an EMQ-rated, ISO-standard bearing with emphasis on interchangeability and quiet operation. No information is given about minimum order quantities, pricing tiers, sample availability, or lead times for production versus stock items. The mention of stainless steel availability in the series suggests some product range flexibility, but buyers must confirm whether this specific supplier stocks or produces AISI 440C variants. For importers, the lack of response data means initial contact should be explicit about enquiry volume, intended market, and required documentation to gauge supplier engagement and capability.