Stripping
Damage state:SKF bearing then bearing load rotation, inner ring, outer ring of the raceway surface or rolling face due to rolling fatigue and present fish scale peeling phenomenon.
Cause:Excessive load. Poor installation (non-linear) torque load foreign body intrusion, water. Poor lubrication, unsuitable lubricant SKF bearing clearance is not appropriate. SKF bearing box precision is not good, SKF bearing box rigidity uneven shaft deflection large rust, erosion point, abrasion and indentation (surface deformation phenomenon) caused by the development.
Measures:Check the size of the load and again study the use of SKF bearings to improve the installation method to improve sealing devices, downtime rust prevention. Use the appropriate viscosity of the lubricant, improve the lubrication method. Check the accuracy of the shaft and SKF bearing box. Check the clearance.

Stripping
Damage state:Present a dark surface with slight wear, the dark surface has multiple tiny cracks as deep as 5-10m from the surface inward, and tiny peeling occurs in a wide area (tiny peeling)
Cause:The lubricant is not suitable. Foreign matter has entered into the lubricant. Surface roughness caused by poor lubricant. The surface finish of mating rolling parts is not good.
Measure:Select lubricant to improve sealing device to improve surface finish of mating rolling parts.

Jamming
Damage state:The so-called jam is the surface damage due to the summary of the tiny burns in the sliding surface injury produced by the part. Slideway surface, rolling surface circumferential direction of the line of injury. The roller end face of the hemline injury near the roller end face of the axial ring surface of the card injury.
Cause:Excessive load, excessive pre-pressure. Poor lubrication. Foreign body bite into. Tilt of the inner ring outer ring, shaft deflection. Shaft, SKF bearing box of poor precision.
Measures:Check the size of the load. Pre-pressure should be appropriate. Improve the lubricant and lubrication method. Check the accuracy of the shaft, SKF bearing box.

Fracture
Damage state:The so-called fracture refers to the small part fracture due to the local part of the retaining edge or roller angle of the raceway wheel by applying music impact or excessive load.
Cause:The installation was struck. The load is too large. Poor use such as dropping.
Measures:Improve the installation method (using hot installation, use the appropriate tool clamp). Correct the load condition.SKF bearing is mounted in place so that the retaining edge is supported.

Cracks, cracks
Damage state:The so-called cracking refers to the raceway wheel or rolling body to produce cracking damage. If continue to use, will also include crack development of cracks.
Cause:Excessive overload. Excessive load, impact load. Peeling has developed. Heat generation and micro-vibration wear due to contact between the raceway wheel and the mounting member. Heat generation due to creep. Poor taper angle of the tapered shaft. Poor cylindricity of the shaft. The radius of the fillet of the shaft step is larger than the chamfer of the SKF bearing and causes interference with the chamfer of the SKF bearing.
Measures:The amount of interference is appropriate. Check the load conditions. Improve the installation method. The shape of the shaft should be appropriate.