Import 623-2z, 607-2z,626-2rsh, 627-2rsl — Buy in Bulk from Supplier in China

One (Tianjin) Technology Ltd. supplies 623-2Z, 607-2Z, 626-2RSH, and 627-2RSL sealed deep groove ball bearings from Tianjin, China. These are single-row radial bearings with steel construction and sealing configurations indicated by suffixes: 2Z denotes metal shields on both sides, while 2RSH and 2RSL denote contact and low-friction rubber seals respectively. The 623 series covers bore diameters from 3 mm to 7 mm in miniature sizes, with the 607 at 7 mm bore, 626 at 6 mm bore, and 627 at 7 mm bore, each suited to light-to-moderate load applications where space is constrained.

The deep groove geometry permits combined radial and axial loading in both directions, with raceway curvature ratios typically between 52% and 58% of ball diameter for optimal stress distribution. Sealed variants eliminate relubrication requirements in clean-to-moderate environments; 2RSH seals offer superior contaminant exclusion compared to 2Z shields, while 2RSL provides reduced running torque at the cost of some sealing efficiency. Steel cages are standard, with hardness typically 60-64 HRC on bearing rings. The 2Z shielded versions tolerate higher operating temperatures than rubber-sealed counterparts, though all variants suit normal industrial duty cycles at peripheral speeds up to reference speed ratings.

These bearings serve electric motors, small appliances, automotive auxiliary drives, conveyor rollers, and pump assemblies where smooth rotation and dimensional consistency matter. Buyers include OEMs in white goods, power tool manufacturers, and aftermarket distributors serving MRO channels. For trade terms, confirm Incoterms, actual available stock, and certificate of origin status directly with One (Tianjin) Technology Ltd., as the listing does not state fixed MOQ, lead time, or pricing.

One (Tianjin) Technology Ltd. is located at New Industrial Park in Huanyuan, Tianjin 300191, China. The supplier carries an imported tier designation and a harbor trust tier, with a response rate of 0.00% and no recorded average response hours in the available data. These signals suggest limited or unverified engagement history on the platform, and buyers should treat initial contact as an opportunity to establish direct communication channels and verify current operational status.

The company profile does not disclose manufacturing certifications, production capacity, year of establishment, employee count, or client references. The listing emphasises bearing construction and sealing features without attributing specific quality accreditations to this supplier. Buyers should request ISO 9001 certification, factory audit reports, and sample batch test data before committing to volume orders. The Tianjin location offers port access via Tianjin Port, a major northern Chinese export hub, though logistics arrangements remain to be confirmed with the supplier directly.