Metallographic picture Application Product Precautions for use Product advantages

Metallographic picture

注：CHB-2Series products can also choose different materials according to different working conditions, such as: bronze substrate, stainless steel substrate, and "lead-free" formulation products. HXOB-20Y is an environmentally friendly lead-free product with orange, orange and blue colors.

Application

Pedal assembly, balance bushing, brake caliper, steering pin bushing and truck tail bushing, truck, crane, truck crane, etc.

Chemical properties

CHB-2 The surface polymer is resistant to chemical corrosion, so its corrosion resistance is mainly determined by the steel back and the surface plating layer.

Abrasion resistance

The wear characteristics under grease lubrication conditions are as follows: its "run-in" wear rate is small; it can be seen from the line segments in the figure that when the grease applied during assembly is consumed to a certain extent, its wear rate gradually increases As shown by dashed line 1; if you refuel before the wear rate rises, its wear rate remains stable.

The main factors affecting life

1) Influence of PV value
PV value is an effective index to determine the wear life of CHB-1. If longer life is required, the PV value must be reduced.
2)Influence of ambient temperature
The higher the ambient temperature, the shorter the service life of CHB-1. 3) Impact on the parts
When the counterpart uses an alloy steel or hard chrome-plated shaft, the surface roughness Ra = 0.4 ~ 0.63, the service life of the CHB-1 bearing can be significantly improved.
In addition to the standard products shown in the catalog, non-standard products can also be provided or ordered according to customer requirements.