NINGBO ISUTAMI BEARING CO.,LTD. products

Ball bearing is a kind of widely applied rolling-element bearing, which is composed of four basic components: ball, inner ring, outer ring and retainer. It uses balls as a carrier to maintain the separation between the inner and outer rings. Ball bearings can reduce rotational friction and support radial and axial loads. Radial ball bearings can withstand moderate radial loads and moderate axial loads. Ball bearings with shields or seals for protection and can be lubricated to  last for their working life. Ball bearings are used in most industrial machinery, such as food processing machinery, textile machinery, packaging machinery, printing machinery and machine tools, etc. Generally, ball bearings are made of bearing steel, sometimes made of stainless steel, ceramic or polymer plastic depending on specific application. We provide various types of ball bearings in standard specifications, including imperial and metric series. 

EMQ Ball bearing is a precision mechanical supporting element. Bearing users hope that the bearing installed on the host machine will not damage and maintain its dynamic performance during the scheduled service period. However, objective facts are not always satisfactory. Through a lot of ball bearing failure analysis shows that the accuracy of the premature bearing short or loss, have a plenty of due to improper material defect or manufacturing, but in large part because no bearing used in strict accordance with the requirements to install, maintain, or bearing selection or actual load rated load bearing damaged bearing abnormal reasons, for example, the fatigue spalling of bearing parts is largely due to the lubricating oil in the doped with impurities. 

Linear motion bearings are widely applied in linear motion systems, including linear bearings, linear bearing pillow blocks, shafts and shaft supports, ball screws and nuts, linear guides. Among them, linear bearing is a kind of universal and low-cost linear motion products. It is generally combined with bearing housing and used with linear shafts with shafts supports. Linear motion bearings are widely applied in precision machine tools, textile machinery, food packaging machinery, printing machinery, robotics and other industrial machinery sliding parts. ISUTAMI not only provide products of standard metric or inch sizes and basic load rating, but also can design and manufacture quality linear bearing products according to the special requirements of different customers.

Mounted unit is a bearing unit that combines insert bearing with housing, it is also called mounted bearing or mounted bearing unit. Most insert bearings are made with a spherical outer diameter and are installed in the bearing housings. They have various structural forms, good versatility and interchangeability. And this type of bearing unit also has a self-aligning function in the design, which can be replenished with grease and easy to install and use. It has a double structure sealing device, which can work in harsh environments. Bearing housings of mounted units are usually made of cast iron. Usually, the bearing housing can be with a flange, and may be either split type or solid type.

Stainless steel mounted unit is composed of stainless steel insert bearing and bearing housing. Its biggest characteristic is to be able to prevent rusting, also has the low vibration, the low noise, the high accuracy rotates, reduces the friction torque and the high speed movement but also has its special use function. The bearing with housing is also light and dust-proof. There is also a lubricating nozzle on the bearing base, which is regularly filled with lubricating grease to maintain the service life of the bearing.

Stainless steel ball bearings refer to stainless steel radial ball bearings, especially stainless steel deep groove ball bearings. Generally, the balls and bearing rings are made of 400 series stainless steel, after heat treatment, the hardness can reach 58 RC. The retainers and seal ring frames are made of 304 stainless steel. Compared with ordinary ball bearings, stainless steel ball bearings not only have obvious advantages in terms of materials, but also have stricter technical and precision control.

Tapered roller bearing is a separated type bearing. The inner and outer rings of the bearing have tapered raceways.Single row tapered roller bearings can bear radial load and single direction axial load.When the bearing bears a radial load, an axial component will be generated, so another bearing that can withstand the axial force in the opposite direction is needed to balance it. The capacity of single row conical roller bearing to bear axial load depends on the contact angle, that is, the outer ring raceway angle. The larger the angle, the greater the axial load capacity. Single row tapered roller bearings are the most widely used in tapered roller bearings.