| Body Type | Zinc Alloy Die Casting |
| Brand | McCoy 8M |
| Usage | Sliding Window |
| Weight Capacity | 55 kg / pair |
| Model No. | 709-McCoy DCRF-1 |
- Swing Double Flat Wheel Nylon Roller with Zinc Alloy body for PVC-U Sliding Windows.
- Capacity of the Roller is 55 kg per pair
- Width of the Roller is 16mm.
- Height of the roller is 15mm.
- The Wheel is made of Polyoxymethylene (POM) Plastic – Polyoxymethylene is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and excellent dimensional stability.
- Body is of Zinc alloy with Chrome Passivation of thickness 8ÎĽm.
- Successfully tested for 72 hours in Salt Spray.
- Successfully tested for 25,000 cycles of operation.
| Feature | Advantage | Benefit |
| Roller made of Polyoxymethylene (POM) Plastic | Roller has high stiffness, low friction, and excellent dimensional stability, so, wheel retains dimensional correctness for a long time. | Longer service life. |
| Successfully tested for 72 hours of Salt Spray test. | Fairly good resistance to corrosion. | Longer service life. |
| Successfully tested for 25,000 cycles of operation under full load conditions. | Very durable and robust in construction. | Longer service life. |
| Chrome passivation coating thickness of 8ÎĽm. | Good resistance to corrosion. | Long Service life. |
| Swing Double Roller | Swing mechanism enables the Roller wheels to negotiate undulations on the track better. | Enables a smoother and rattle free movement of the sash. |
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