显示标签为“turbocharger bearings”的博文。显示所有博文
显示标签为“turbocharger bearings”的博文。显示所有博文

2015年3月3日星期二

The basic model consists of a deep groove ball

The basic model consists of a deep groove ball angular contact ball bearing outer ring, an inner ring, a set of balls and a group holding structure into. Deep groove ball bearing type has two kinds of single and double row deep groove ball structure also points sealed and open two structures, open means without turbocharger bearings seal structure, sealed deep groove ball into the dust seal and oil seal. Dust sealing cap material is steel stamping.
When the only radial load, the contact angle is zero. When the deep groove ball bearings with a larger radial clearance, with angular contact bearings can bear large axial load, the friction coefficient is small deep groove ball bearings, the speed limit is also high.
Shielded deep groove ball High speed Spindle with rubber ring of deep groove ball bearings with snap groove deep groove ball bearings, have installed ball gap large load capacity of deep groove ball bearings, double row deep groove ball bearings.


2013年12月26日星期四

Contact fatigue spalling occurs in INA bearing surface


Contact fatigue spalling occurs in INA bearing surface , often accompanied by fatigue cracks , first produced from the contact surface of the following maximum alternating shear stress , and then extended to the formation of different surface flaking shapes, such as point-like pitting or pitting as spalling , flaking into small pieces turbocharger bearings called superficial peeling. Due to the gradual expansion of flaking surfaces , but often extend to the deep , forming deep peeling. Deep contact fatigue spalling is a source of fatigue failure .
Continuous wear will cause spherical grinding spindle roller thrust bearing parts gradually damage and eventually lead to the loss of dimensional accuracy INA bearings and other related issues . Wear may affect the shape change , with the gap increasing and work surface morphology changes that may affect the lubricant or it reaches a certain level of pollution caused complete loss of lubrication , which makes bearings and even the loss of rotational accuracy can not operate normally . Wear failure is one of the kinds of bearings common failure mode, press the wear is usually divided into the most common form of abrasive wear and adhesive wear .