Toll Free: 1800 3000 6222
Telephone: +91 141 222 3221
Fax: +91 141 222 1926, 222 2259
CIN: U29130WB1946PLC013643
Founded in 1946, National Engineering Industries Ltd (NEI) is India’s leading bearings manufacturer and exporter, renowned for excellence in quality and delivery.
Double row ball bearings support radial loads and, depending on their design, axial loads in both directions. Their compact structure can suit electric motors, pumps, gearboxes, and agricultural equipment. For buyers comparing manufacturers in China, the challenge is not simply finding a low quotation. Material consistency, machining accuracy, heat treatment, and inspection practices can all affect bearing performance over time.
A reliable supplier should explain product specifications clearly and provide traceable quality records. Ask about steel grades, clearance options, cage materials, lubrication, and operating limits. Check whether sample bearings match the drawings and stated tolerances. Small details matter. A rough raceway finish or inconsistent noise level may signal a problem that a catalogue cannot show. Where possible, review test reports, production capabilities, and customer references before making a large order.
This guide introduces factors to consider when evaluating double row ball bearing manufacturers in China. It focuses on product range, quality control, technical support, and communication, rather than treating any supplier as automatically suitable. Requesting samples and confirming application requirements can help reduce uncertainty. Still, one inspection cannot predict every service condition. That is worth remembering. The best choice depends on your load, speed, environment, required service life, and the manufacturer’s ability to meet documented specifications consistently.
A double-row ball bearing contains two parallel rows of balls between its inner and outer rings. Compared with a single-row bearing of similar dimensions, it can carry higher radial loads and may support axial loads in both directions. Exact capacity depends on its design. Not magic. Angular-contact versions suit combined radial and axial loading, while deep-groove versions are often chosen for steady rotation and moderate axial forces.
These bearings appear in pumps, gearboxes, electric motors, conveyors, and agricultural machinery. A pump shaft, for example, may face radial force from the impeller and axial force from fluid pressure. In practice, the bearing must match the load, speed, lubrication, and housing fit. Fit matters. A common selection mistake is to focus only on load capacity and overlook operating temperature or shaft alignment. Even a catalog match can perform poorly if installation is careless. Check the manufacturer’s load and speed ratings, and confirm that the bearing’s internal clearance suits the application. Real operating conditions are rarely as tidy as a specification sheet.
