ZYS Bearing Steel Double Row Spherical Roller Bearing 21308


Application of ZYS spherical roller bearings:

Continuous Casting Machines

Mechanical Fans and Blowers

Gearbox and Pumps 

Wind Turbines

Material Handling 

Marine Propulsion and Offshore Drilling

Mining and Construction Equipment

Pulp and Paper Processing Equipment

Spherical roller bearings have two rows of rollers that are mainly used for withstanding radial loads and also axial loads in either direction. Self-aligning roller bearings have high radial load capacity, especially suitable for heavy load or vibration load, but can not withstand the axial load. Spherical roller thrust bearings have good self-aligning properties and can compensate for the coaxiality error. 

21308 Spherical Roller Bearing

About ZYS

Luoyang Bearing Research Institute Co., Ltd. is a high-tech enterprise specializing in the development of "High-end, precise, advanced, unique, Non-standard" bearing products for the key units in various fields of national economic construction. Its predecessor, Luoyang Bearing Research Institute, was established in 1958. It is the only state-level comprehensive research institute in China's bearing industry. In 1999, it entered China National Machinery Industry Group Co., Ltd. and transformed into a science and technology enterprise.

ZYS Precision Bearing Quality Control and Assurance:

Austrian AICHELIN heat treatment equipment and long-life heat treatment process provide a strong guarantee for the continuous and reliable operation of bearings.

ZYS MANUFACTURING CAPACITY


ZYS Quality assurance 





ZYS bearing products


ZYS Packing :




FAQ:

Q: Are you  trading company or manufacturer ?
A: ZYS is bearing manufacturer, the only first-class comprehensive research institute in China bearing industry.

Q: How do you  control quality  of bearing?
A: ZYS has established quality control systems for each kind of bearing and spindle. All products and services passed ISO9001-2008 Quality Certificate.


Q: What is the  MOQ ?
A: It depends on the bearing type. You can send inquiry or send e-mail  for more information.

Q: How about the  package ?
A: Industrial packing in general condition (Plastic tube+ carton+ pallet). Accept design package when OEM.

Q: How long is the  delivery time ?
A: It will take about 10 to 40 days, depends on the model and quantity.

Q: How about the  shipping ?
A: We can arrange the shipment or you may have the forwarder.

Q: Is  sample  avaiable?
A: Yes, sample order is acceptable.

Q: Can we use our own LOGO or design on bearings?
A: Yes.  OEM  is acceptable. We can design the bearing with your requirements and use your own LOGO and package design.