1, ntn bearing heat knowledge  ntn bearing the core component, the spindle cell component usually μm-level precision, such as the beating is generally 1 ~ 3μm, spindle stiffness generally 100-300N/μm, therefore, spindle precision of the various parts and their deformation is small. However, the high-speed operation, the bearings much heat, resulting in a high bearing temperature rise and cause thermal deformation.

ntn rolling bearings is the mass production of machine parts, and manufacture of precision is very strict for a high degree of technical specialization, thus readily available for most bearing varieties, should be purchased more cost-effective than repair, and only in the following situations Next, before considering the repair bearings, namely:1.ntn bearing a slight injury, such as inventory

Identification of the Quality of the sound description:Irregular use of hearing to identify the operation is a very common method. For example: With the electronic stethoscope to check does not feel a part of the normal noise often experienced operators to use the method.ntn bearings are well connected to the switch if the state will issue a muffled whining sound. If issued a sharp hissing sound,

Metal sliding ntn bearing material is Higashiura new hardware products, is a composite multi-layer metal bearing materials, bearing materials of the steel liner back to the matrix layer, the bearing structure with a high strength, anti-friction self-lubricating layer of material, from the copper bearing alloy composition, it is not hurting the dual, it can withstand high and low temperature operating conditions.

1: ntn bearing speed decision factors:When ntn bearing load conditions in the 0.1C running, as the rolling element and raceway contact surfaces increases the contact stress to the heart, has led to ntn bearing operating temperature increased, the performance of the lubricant reduces. Therefore, the speed limit imports of bearings will be reduced accordingly. In this case,

ntn bearings bearing clearance i.e. import is not installed on the shaft or bearing housing when the inner or outer side fixed, then it is not fixed, and either the radial or axial movement of traffic moving. Under the direction of movement can be divided into radial clearance and axial clearance.Running time of clearance (known as work clearance) the size of the imported bearings rolling fatigue life,temperature, noise, vibration and other properties affected.

ntn Bearing Wear: Combining the characteristics of the printing press, roller bearing wear mainly in the following several reasons.1. Fatigue wear normal businessWill have any ntn bearing fatigue wear, have a certain life, so wear roller bearing is also quite normal, everyday operation of the plant as a long time presses, so 5 years after operation, roller bearings on there beyond the normal permissible wear.2. Long-term excessive printing pressure

1: ntn bearing support seal:ntn bearing support sealing means bearing external, such as ntn bearing shell parts, shaft parts, and cover part of the additional sealing devices.Bearing seals in the choice of bearings should be considered when the bearing lubricant type (fat or oil), sealing contact with the surface of the circular speed, bearing misalignment, and many other factors.