Product description:

Type: Pulley
Shell material : PP polyoxymethylene/POM polypropylene
Bearing material ：bearing steel
The embedded bearing can be replaced at will
POM It is a crystalline thermoplastic with an obvious melting point of 165~175°C, and its properties are closest to those of metals. It is generally called plastic steel.
High mechanical strength and rigidity
The highest fatigue strength
Good environmental resistance and organic solvent resistance
Strong resistance to repeated impact
Wide temperature range (-40℃~120℃)
Good electrical properties
 Good recovery
with self-lubrication, good wear resistance
Excellent dimensional stability

PP polyoxymethylene : 0.9-0.91g/cm3, molding shrinkage: 1.0-2.5%, molding temperature: 160-220 ℃. PP is a crystalline polymer, which is the lightest in common use, with a density of only 0.91g/cm3 (smaller than water). The heat resistance of general plastic evaluation is the best, and its thermal deformation temperature is 80-100 ℃. It can be boiled in boiling water. It has superior stress cracking resistance and high bending fatigue life, commonly known as "100% glue". The comprehensive function of PP is better than that of PE. PP products have light weight, good toughness and good chemical resistance.
Suitable for doors and windows

Notes:
Please allow small errors due to manual measurements. Thanks for your understanding.
The monitor is not calibrated and the color of the elements shown in the photo may differ slightly from the actual item. Please refer to the actual product.

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