MKL bearings always choose good raw material for plastic pulley wheels with bearings.

For inside bearings ,we can produce with Chrome steel Gcr15 ,stainless steel and carbon steel .

And for outer coated material ,we can produce with high hardness material such as belows:

POM (super steel "or" saigang ", also known as polyoxymethylene)

Polyoxymethylene resin, POM plastic and saigang material: it is a kind of white or black plastic particles with high hardness, high rigidity, high wear resistance, high fatigue strength, strong repeated impact resistance, good self lubrication and wear resistance, wide application temperature range (- 40 ℃ ~ 120 ℃), and the property is closest to metal.

PA66 (polyamide 66 or nylon 66)

PA66 (polyamide 66 or nylon 66): high tensile strength, excellent toughness and impact resistance, good self lubrication, wear resistance, excellent drug resistance, good low temperature characteristics and self extinguishing.

Pu (polyurethane)

Pu (polyurethane): it has high flexibility and resilience, high mechanical strength and oxidation stability, excellent oil resistance, solvent resistance, water resistance and fire resistance.

glass fibre

Glass fiber (English original name: glass fiber or fiberglass): it is an inorganic non-metallic material with excellent performance. It has a wide variety. Its advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but its disadvantages are brittle and poor wear resistance.

For these nylon rollers are widely for sliding door rollers,sliding window,sliding and Hanging furniture/wardrobe/ closet/ cabinet wheel/rollers.

We can produce customized sliding roller bearings for you ,welcome with your enquiry .