Bearing tolerances

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Bearing dimensional accuracy and rotational accuracy according to ISO and JIS standards. For the mechanical requirements of high-precision and high-speed operation, it is recommended to use five or more precision bearings, de ep groove ball bearings, radial thrust ball bearings or cylindrical roller bearings are suitable for high running accuracy mechanical. Rigidity, when the contact surface pressure of the bearing rolling elements and the raceway, will produce the elastic deformation. Some machines require the elastic deformation is minimized. Elastic deformation than ball bearings roller bearings.sealed ball bearing
Stamping to keep the frame only as a standard structure when writing bearing code.
Entity holding frame made of a metal, a phenol resin fabric and plastics manufacture. The bearing code in general indicate that these materials.
Metal solid cage the workplace for demanding and high temperature strength of the cage.
Can also be used when the need ribs boot, solid cage. The the ribs guided high-speed bearing holder manufactured from a light material, such as a light metal or a phenol resin fabri c, in order to guarantee its smaller inertia force.
Holder with a polyamide (nylon 66), have a very good sliding and self-lubricating properties.thin ball bearings
Cage of glass fiber reinforced nylon 66 for operating temperatures up to 120 ~ C under steady state.
Use lubricating oil, if the oil additives may affect the service life of such a holder.