Import 6006 2rs/Zz/Open Bearing — Buy in wholesale FOB from Supplier in China

Ningbo Renhe Machinery Bearing Co., Ltd. manufactures the 6006 series deep groove ball bearing with a 30 mm bore diameter, 55 mm outer diameter, and 13 mm width, conforming to ISO 15 and DIN 625-1 dimensional standards. The bearing is available in three seal configurations: 2RS (rubber contact seals on both sides), ZZ (metal shields on both sides), and OPEN (unsealed), each suited to different contamination and lubrication maintenance requirements. The chrome steel construction uses GCr15 (AISI 52100) material, a standard bearing steel with 1.3-1.6% chromium content providing excellent hardness and wear resistance after heat treatment. The company references precision grades P6 and P5, with vibration levels Z3V3 and Z4V4 respectively, indicating capability for above-standard rotational accuracy and reduced noise operation.

The 6006 bearing features a single-row deep groove raceway geometry with uninterrupted grooves having close osculation to the balls, enabling accommodation of radial loads and axial loads in both directions. The G20 grade precision referenced in the source data indicates a specific dimensional tolerance band, though buyers should confirm whether this corresponds to ISO P6 or a proprietary internal classification. Standard cage materials are typically pressed steel or brass, with steel cages being more common in this size range for cost efficiency and high-speed stability. The contact seal variant (2RS) uses nitrile rubber (NBR) with steel reinforcement, providing effective grease retention and dust exclusion in contaminated environments.

These bearings serve electric motors, conveyor rollers, pumps, gearboxes, and automotive wheel hub assemblies where reliable radial load capacity and smooth rotation are essential. The open variant permits external lubrication access for high-speed or high-temperature applications where shielded or sealed versions would suffer from grease degradation. Importers should confirm with Ningbo Renhe whether they offer custom preload settings, special greases for food machinery or high-temperature service, and whether they can provide certificates of conformity to specific automotive or industrial OEM standards. The Zhejiang location offers established bearing industry infrastructure, with Cixi being a recognised cluster for precision bearing manufacturing in China.

Ningbo Renhe Machinery Bearing Co., Ltd. is located at No.218, Weier Road, Andong Town Industrial Zone, Cixi, Zhejiang Province, China, placing it within one of China's densest concentrations of bearing manufacturing capability. The company operates under the RUWH brand name for bearings in the domestic Chinese market, with the 6006 series being a core catalogue item. Its harbor trust tier indicates verified business registration without additional third-party quality or financial auditing; response rate and average response hours are both recorded at zero, suggesting limited or unmeasured inquiry activity through tracked channels.

The supplier profile does not state founding year, employee count, annual production capacity, revenue figures, or specific OEM client relationships. No ISO 9001, IATF 16949, or other quality system certifications are confirmed in the available data. The company references precision grades P6 and P5 and vibration levels Z3V3 and Z4V4, which implies quality control capability, but buyers should independently verify whether these are standard offerings or require special order conditions. Cixi's bearing industry ecosystem provides access to steel suppliers, heat treatment services, and metrology laboratories, but due diligence on Ningbo Renhe's specific manufacturing depth versus trading activity remains essential.